diff options
Diffstat (limited to 'drivers')
263 files changed, 2625 insertions, 1401 deletions
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index a391bbc48105..d94f92f88ca1 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -2,7 +2,6 @@ # Makefile for the Linux ACPI interpreter # -ccflags-y := -Os ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT # diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index b4c1a6a51da4..03250e1f1103 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -25,9 +25,11 @@ ACPI_MODULE_NAME("platform"); static const struct acpi_device_id forbidden_id_list[] = { - {"PNP0000", 0}, /* PIC */ - {"PNP0100", 0}, /* Timer */ - {"PNP0200", 0}, /* AT DMA Controller */ + {"PNP0000", 0}, /* PIC */ + {"PNP0100", 0}, /* Timer */ + {"PNP0200", 0}, /* AT DMA Controller */ + {"ACPI0009", 0}, /* IOxAPIC */ + {"ACPI000A", 0}, /* IOAPIC */ {"", 0}, }; diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c index c86bae7b1d0f..ff096d9755b9 100644 --- a/drivers/acpi/acpica/utresrc.c +++ b/drivers/acpi/acpica/utresrc.c @@ -421,10 +421,8 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, ACPI_FUNCTION_TRACE(ut_walk_aml_resources); - /* - * The absolute minimum resource template is one end_tag descriptor. - * However, we will treat a lone end_tag as just a simple buffer. - */ + /* The absolute minimum resource template is one end_tag descriptor */ + if (aml_length < sizeof(struct aml_resource_end_tag)) { return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); } @@ -456,8 +454,9 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, /* Invoke the user function */ if (user_function) { - status = user_function(aml, length, offset, - resource_index, context); + status = + user_function(aml, length, offset, resource_index, + context); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -481,12 +480,6 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, *context = aml; } - /* Check if buffer is defined to be longer than the resource length */ - - if (aml_length > (offset + length)) { - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); - } - /* Normal exit */ return_ACPI_STATUS(AE_OK); diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index b192b42a8351..79b3c9c5a3bc 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -1073,6 +1073,7 @@ static int ghes_remove(struct platform_device *ghes_dev) if (list_empty(&ghes_sci)) unregister_acpi_hed_notifier(&ghes_notifier_sci); mutex_unlock(&ghes_list_mutex); + synchronize_rcu(); break; case ACPI_HEST_NOTIFY_NMI: ghes_nmi_remove(ghes); diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index fb19e1cdb641..edc8663b5db3 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -99,13 +99,13 @@ static int find_child_checks(struct acpi_device *adev, bool check_children) return -ENODEV; /* - * If the device has a _HID (or _CID) returning a valid ACPI/PNP - * device ID, it is better to make it look less attractive here, so that - * the other device with the same _ADR value (that may not have a valid - * device ID) can be matched going forward. [This means a second spec - * violation in a row, so whatever we do here is best effort anyway.] + * If the device has a _HID returning a valid ACPI/PNP device ID, it is + * better to make it look less attractive here, so that the other device + * with the same _ADR value (that may not have a valid device ID) can be + * matched going forward. [This means a second spec violation in a row, + * so whatever we do here is best effort anyway.] */ - return sta_present && list_empty(&adev->pnp.ids) ? + return sta_present && !adev->pnp.type.platform_id ? FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE; } diff --git a/drivers/acpi/ioapic.c b/drivers/acpi/ioapic.c index 1120dfd625b8..7e4fbf9a53a3 100644 --- a/drivers/acpi/ioapic.c +++ b/drivers/acpi/ioapic.c @@ -45,6 +45,12 @@ static acpi_status setup_res(struct acpi_resource *acpi_res, void *data) struct resource *res = data; struct resource_win win; + /* + * We might assign this to 'res' later, make sure all pointers are + * cleared before the resource is added to the global list + */ + memset(&win, 0, sizeof(win)); + res->flags = 0; if (acpi_dev_filter_resource_type(acpi_res, IORESOURCE_MEM)) return AE_OK; diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 662036bdc65e..c8ea9d698cd0 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -1617,7 +1617,11 @@ static int cmp_map(const void *m0, const void *m1) const struct nfit_set_info_map *map0 = m0; const struct nfit_set_info_map *map1 = m1; - return map0->region_offset - map1->region_offset; + if (map0->region_offset < map1->region_offset) + return -1; + else if (map0->region_offset > map1->region_offset) + return 1; + return 0; } /* Retrieve the nth entry referencing this spa */ diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index fcd4ce6f78d5..1c2b846c5776 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -200,6 +200,7 @@ static int acpi_power_get_list_state(struct list_head *list, int *state) return -EINVAL; /* The state of the list is 'on' IFF all resources are 'on'. */ + cur_state = 0; list_for_each_entry(entry, list, node) { struct acpi_power_resource *resource = entry->resource; acpi_handle handle = resource->device.handle; diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 192691880d55..2433569b02ef 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1857,15 +1857,20 @@ static void acpi_bus_attach(struct acpi_device *device) return; device->flags.match_driver = true; - if (!ret) { - ret = device_attach(&device->dev); - if (ret < 0) - return; - - if (!ret && device->pnp.type.platform_id) - acpi_default_enumeration(device); + if (ret > 0) { + acpi_device_set_enumerated(device); + goto ok; } + ret = device_attach(&device->dev); + if (ret < 0) + return; + + if (ret > 0 || !device->pnp.type.platform_id) + acpi_device_set_enumerated(device); + else + acpi_default_enumeration(device); + ok: list_for_each_entry(child, &device->children, node) acpi_bus_attach(child); diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c index 6c9aa95a9a05..49d705c9f0f7 100644 --- a/drivers/ata/pata_atiixp.c +++ b/drivers/ata/pata_atiixp.c @@ -278,11 +278,6 @@ static int atiixp_init_one(struct pci_dev *pdev, const struct pci_device_id *id) }; const struct ata_port_info *ppi[] = { &info, &info }; - /* SB600/700 don't have secondary port wired */ - if ((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE) || - (pdev->device == PCI_DEVICE_ID_ATI_IXP700_IDE)) - ppi[1] = &ata_dummy_port_info; - return ata_pci_bmdma_init_one(pdev, ppi, &atiixp_sht, NULL, ATA_HOST_PARALLEL_SCAN); } diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index 0636d84fbefe..f3f538eec7b3 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -644,14 +644,16 @@ static void svia_configure(struct pci_dev *pdev, int board_id, pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8); } - /* enable IRQ on hotplug */ - pci_read_config_byte(pdev, SVIA_MISC_3, &tmp8); - if ((tmp8 & SATA_HOTPLUG) != SATA_HOTPLUG) { - dev_dbg(&pdev->dev, - "enabling SATA hotplug (0x%x)\n", - (int) tmp8); - tmp8 |= SATA_HOTPLUG; - pci_write_config_byte(pdev, SVIA_MISC_3, tmp8); + if (board_id == vt6421) { + /* enable IRQ on hotplug */ + pci_read_config_byte(pdev, SVIA_MISC_3, &tmp8); + if ((tmp8 & SATA_HOTPLUG) != SATA_HOTPLUG) { + dev_dbg(&pdev->dev, + "enabling SATA hotplug (0x%x)\n", + (int) tmp8); + tmp8 |= SATA_HOTPLUG; + pci_write_config_byte(pdev, SVIA_MISC_3, tmp8); + } } /* diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 54c8736038de..eba8bcd677fa 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -3970,7 +3970,7 @@ static int mtip_block_initialize(struct driver_data *dd) dd->tags.reserved_tags = 1; dd->tags.cmd_size = sizeof(struct mtip_cmd); dd->tags.numa_node = dd->numa_node; - dd->tags.flags = BLK_MQ_F_SHOULD_MERGE; + dd->tags.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_NO_SCHED; dd->tags.driver_data = dd; dd->tags.timeout = MTIP_NCQ_CMD_TIMEOUT_MS; diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index 1710b06f04a7..6fac5fedd610 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -523,7 +523,7 @@ static int zram_decompress_page(struct zram *zram, char *mem, u32 index) cmem = zs_map_object(meta->mem_pool, handle, ZS_MM_RO); if (size == PAGE_SIZE) { - copy_page(mem, cmem); + memcpy(mem, cmem, PAGE_SIZE); } else { struct zcomp_strm *zstrm = zcomp_stream_get(zram->comp); @@ -717,7 +717,7 @@ compress_again: if ((clen == PAGE_SIZE) && !is_partial_io(bvec)) { src = kmap_atomic(page); - copy_page(cmem, src); + memcpy(cmem, src, PAGE_SIZE); kunmap_atomic(src); } else { memcpy(cmem, src, clen); @@ -932,7 +932,7 @@ static int zram_rw_page(struct block_device *bdev, sector_t sector, } index = sector >> SECTORS_PER_PAGE_SHIFT; - offset = sector & (SECTORS_PER_PAGE - 1) << SECTOR_SHIFT; + offset = (sector & (SECTORS_PER_PAGE - 1)) << SECTOR_SHIFT; bv.bv_page = page; bv.bv_len = PAGE_SIZE; diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 6d9cc2d39d22..7e4a9d1296bb 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -60,6 +60,10 @@ static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t size) #endif #ifdef CONFIG_STRICT_DEVMEM +static inline int page_is_allowed(unsigned long pfn) +{ + return devmem_is_allowed(pfn); +} static inline int range_is_allowed(unsigned long pfn, unsigned long size) { u64 from = ((u64)pfn) << PAGE_SHIFT; @@ -75,6 +79,10 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size) return 1; } #else +static inline int page_is_allowed(unsigned long pfn) +{ + return 1; +} static inline int range_is_allowed(unsigned long pfn, unsigned long size) { return 1; @@ -122,23 +130,31 @@ static ssize_t read_mem(struct file *file, char __user *buf, while (count > 0) { unsigned long remaining; + int allowed; sz = size_inside_page(p, count); - if (!range_is_allowed(p >> PAGE_SHIFT, count)) + allowed = page_is_allowed(p >> PAGE_SHIFT); + if (!allowed) return -EPERM; + if (allowed == 2) { + /* Show zeros for restricted memory. */ + remaining = clear_user(buf, sz); + } else { + /* + * On ia64 if a page has been mapped somewhere as + * uncached, then it must also be accessed uncached + * by the kernel or data corruption may occur. + */ + ptr = xlate_dev_mem_ptr(p); + if (!ptr) + return -EFAULT; - /* - * On ia64 if a page has been mapped somewhere as uncached, then - * it must also be accessed uncached by the kernel or data - * corruption may occur. - */ - ptr = xlate_dev_mem_ptr(p); - if (!ptr) - return -EFAULT; + remaining = copy_to_user(buf, ptr, sz); + + unxlate_dev_mem_ptr(p, ptr); + } - remaining = copy_to_user(buf, ptr, sz); - unxlate_dev_mem_ptr(p, ptr); if (remaining) return -EFAULT; @@ -181,30 +197,36 @@ static ssize_t write_mem(struct file *file, const char __user *buf, #endif while (count > 0) { + int allowed; + sz = size_inside_page(p, count); - if (!range_is_allowed(p >> PAGE_SHIFT, sz)) + allowed = page_is_allowed(p >> PAGE_SHIFT); + if (!allowed) return -EPERM; - /* - * On ia64 if a page has been mapped somewhere as uncached, then - * it must also be accessed uncached by the kernel or data - * corruption may occur. - */ - ptr = xlate_dev_mem_ptr(p); - if (!ptr) { - if (written) - break; - return -EFAULT; - } + /* Skip actual writing when a page is marked as restricted. */ + if (allowed == 1) { + /* + * On ia64 if a page has been mapped somewhere as + * uncached, then it must also be accessed uncached + * by the kernel or data corruption may occur. + */ + ptr = xlate_dev_mem_ptr(p); + if (!ptr) { + if (written) + break; + return -EFAULT; + } - copied = copy_from_user(ptr, buf, sz); - unxlate_dev_mem_ptr(p, ptr); - if (copied) { - written += sz - copied; - if (written) - break; - return -EFAULT; + copied = copy_from_user(ptr, buf, sz); + unxlate_dev_mem_ptr(p, ptr); + if (copied) { + written += sz - copied; + if (written) + break; + return -EFAULT; + } } buf += sz; diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index e9b7e0b3cabe..87fe111d0be6 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -2202,14 +2202,16 @@ static int virtcons_freeze(struct virtio_device *vdev) vdev->config->reset(vdev); - virtqueue_disable_cb(portdev->c_ivq); + if (use_multiport(portdev)) + virtqueue_disable_cb(portdev->c_ivq); cancel_work_sync(&portdev->control_work); cancel_work_sync(&portdev->config_work); /* * Once more: if control_work_handler() was running, it would * enable the cb as the last step. */ - virtqueue_disable_cb(portdev->c_ivq); + if (use_multiport(portdev)) + virtqueue_disable_cb(portdev->c_ivq); remove_controlq_data(portdev); list_for_each_entry(port, &portdev->ports, list) { diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c index ab609a76706f..cf9449b3dbd9 100644 --- a/drivers/clk/clk-stm32f4.c +++ b/drivers/clk/clk-stm32f4.c @@ -429,6 +429,13 @@ static const struct clk_div_table pll_divp_table[] = { { 0, 2 }, { 1, 4 }, { 2, 6 }, { 3, 8 }, { 0 } }; +static const struct clk_div_table pll_divq_table[] = { + { 2, 2 }, { 3, 3 }, { 4, 4 }, { 5, 5 }, { 6, 6 }, { 7, 7 }, + { 8, 8 }, { 9, 9 }, { 10, 10 }, { 11, 11 }, { 12, 12 }, { 13, 13 }, + { 14, 14 }, { 15, 15 }, + { 0 } +}; + static const struct clk_div_table pll_divr_table[] = { { 2, 2 }, { 3, 3 }, { 4, 4 }, { 5, 5 }, { 6, 6 }, { 7, 7 }, { 0 } }; @@ -496,9 +503,9 @@ struct stm32f4_div_data { #define MAX_PLL_DIV 3 static const struct stm32f4_div_data div_data[MAX_PLL_DIV] = { - { 16, 2, 0, pll_divp_table }, - { 24, 4, CLK_DIVIDER_ONE_BASED, NULL }, - { 28, 3, 0, pll_divr_table }, + { 16, 2, 0, pll_divp_table }, + { 24, 4, 0, pll_divq_table }, + { 28, 3, 0, pll_divr_table }, }; struct stm32f4_pll_data { diff --git a/drivers/clk/sunxi-ng/Kconfig b/drivers/clk/sunxi-ng/Kconfig index 72109d2cf41b..1c2357301017 100644 --- a/drivers/clk/sunxi-ng/Kconfig +++ b/drivers/clk/sunxi-ng/Kconfig @@ -1,6 +1,7 @@ config SUNXI_CCU bool "Clock support for Allwinner SoCs" depends on ARCH_SUNXI || COMPILE_TEST + select RESET_CONTROLLER default ARCH_SUNXI if SUNXI_CCU @@ -135,6 +136,7 @@ config SUN8I_V3S_CCU config SUN9I_A80_CCU bool "Support for the Allwinner A80 CCU" select SUNXI_CCU_DIV + select SUNXI_CCU_MULT select SUNXI_CCU_GATE select SUNXI_CCU_NKMP select SUNXI_CCU_NM diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a33.c b/drivers/clk/sunxi-ng/ccu-sun8i-a33.c index a7b3c08ed0e2..2c69b631967a 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-a33.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-a33.c @@ -752,6 +752,13 @@ static const struct sunxi_ccu_desc sun8i_a33_ccu_desc = { .num_resets = ARRAY_SIZE(sun8i_a33_ccu_resets), }; +static struct ccu_pll_nb sun8i_a33_pll_cpu_nb = { + .common = &pll_cpux_clk.common, + /* copy from pll_cpux_clk */ + .enable = BIT(31), + .lock = BIT(28), +}; + static struct ccu_mux_nb sun8i_a33_cpu_nb = { .common = &cpux_clk.common, .cm = &cpux_clk.mux, @@ -783,6 +790,10 @@ static void __init sun8i_a33_ccu_setup(struct device_node *node) sunxi_ccu_probe(node, reg, &sun8i_a33_ccu_desc); + /* Gate then ungate PLL CPU after any rate changes */ + ccu_pll_notifier_register(&sun8i_a33_pll_cpu_nb); + + /* Reparent CPU during PLL CPU rate changes */ ccu_mux_notifier_register(pll_cpux_clk.common.hw.clk, &sun8i_a33_cpu_nb); } diff --git a/drivers/clk/sunxi-ng/ccu_common.c b/drivers/clk/sunxi-ng/ccu_common.c index 8a47bafd7890..9d8724715a43 100644 --- a/drivers/clk/sunxi-ng/ccu_common.c +++ b/drivers/clk/sunxi-ng/ccu_common.c @@ -14,11 +14,13 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/iopoll.h> #include <linux/slab.h> #include "ccu_common.h" +#include "ccu_gate.h" #include "ccu_reset.h" static DEFINE_SPINLOCK(ccu_lock); @@ -39,6 +41,53 @@ void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock) WARN_ON(readl_relaxed_poll_timeout(addr, reg, reg & lock, 100, 70000)); } +/* + * This clock notifier is called when the frequency of a PLL clock is + * changed. In common PLL designs, changes to the dividers take effect + * almost immediately, while changes to the multipliers (implemented + * as dividers in the feedback loop) take a few cycles to work into + * the feedback loop for the PLL to stablize. + * + * Sometimes when the PLL clock rate is changed, the decrease in the + * divider is too much for the decrease in the multiplier to catch up. + * The PLL clock rate will spike, and in some cases, might lock up + * completely. + * + * This notifier callback will gate and then ungate the clock, + * effectively resetting it, so it proceeds to work. Care must be + * taken to reparent consumers to other temporary clocks during the + * rate change, and that this notifier callback must be the first + * to be registered. + */ +static int ccu_pll_notifier_cb(struct notifier_block *nb, + unsigned long event, void *data) +{ + struct ccu_pll_nb *pll = to_ccu_pll_nb(nb); + int ret = 0; + + if (event != POST_RATE_CHANGE) + goto out; + + ccu_gate_helper_disable(pll->common, pll->enable); + + ret = ccu_gate_helper_enable(pll->common, pll->enable); + if (ret) + goto out; + + ccu_helper_wait_for_lock(pll->common, pll->lock); + +out: + return notifier_from_errno(ret); +} + +int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb) +{ + pll_nb->clk_nb.notifier_call = ccu_pll_notifier_cb; + + return clk_notifier_register(pll_nb->common->hw.clk, + &pll_nb->clk_nb); +} + int sunxi_ccu_probe(struct device_node *node, void __iomem *reg, const struct sunxi_ccu_desc *desc) { diff --git a/drivers/clk/sunxi-ng/ccu_common.h b/drivers/clk/sunxi-ng/ccu_common.h index 73d81dc58fc5..d6fdd7a789aa 100644 --- a/drivers/clk/sunxi-ng/ccu_common.h +++ b/drivers/clk/sunxi-ng/ccu_common.h @@ -83,6 +83,18 @@ struct sunxi_ccu_desc { void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock); +struct ccu_pll_nb { + struct notifier_block clk_nb; + struct ccu_common *common; + + u32 enable; + u32 lock; +}; + +#define to_ccu_pll_nb(_nb) container_of(_nb, struct ccu_pll_nb, clk_nb) + +int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb); + int sunxi_ccu_probe(struct device_node *node, void __iomem *reg, const struct sunxi_ccu_desc *desc); diff --git a/drivers/clocksource/clkevt-probe.c b/drivers/clocksource/clkevt-probe.c index 8c30fec86094..eb89b502acbd 100644 --- a/drivers/clocksource/clkevt-probe.c +++ b/drivers/clocksource/clkevt-probe.c @@ -17,7 +17,7 @@ #include <linux/init.h> #include <linux/of.h> -#include <linux/clockchip.h> +#include <linux/clockchips.h> extern struct of_device_id __clkevt_of_table[]; diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 5dbdd261aa73..0e3f6496524d 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -918,11 +918,19 @@ static struct kobj_type ktype_cpufreq = { .release = cpufreq_sysfs_release, }; -static int add_cpu_dev_symlink(struct cpufreq_policy *policy, - struct device *dev) +static void add_cpu_dev_symlink(struct cpufreq_policy *policy, unsigned int cpu) { + struct device *dev = get_cpu_device(cpu); + + if (!dev) + return; + + if (cpumask_test_and_set_cpu(cpu, policy->real_cpus)) + return; + dev_dbg(dev, "%s: Adding symlink\n", __func__); - return sysfs_create_link(&dev->kobj, &policy->kobj, "cpufreq"); + if (sysfs_create_link(&dev->kobj, &policy->kobj, "cpufreq")) + dev_err(dev, "cpufreq symlink creation failed\n"); } static void remove_cpu_dev_symlink(struct cpufreq_policy *policy, @@ -1180,10 +1188,10 @@ static int cpufreq_online(unsigned int cpu) policy->user_policy.min = policy->min; policy->user_policy.max = policy->max; - write_lock_irqsave(&cpufreq_driver_lock, flags); - for_each_cpu(j, policy->related_cpus) + for_each_cpu(j, policy->related_cpus) { per_cpu(cpufreq_cpu_data, j) = policy; - write_unlock_irqrestore(&cpufreq_driver_lock, flags); + add_cpu_dev_symlink(policy, j); + } } else { policy->min = policy->user_policy.min; policy->max = policy->user_policy.max; @@ -1275,13 +1283,15 @@ out_exit_policy: if (cpufreq_driver->exit) cpufreq_driver->exit(policy); + + for_each_cpu(j, policy->real_cpus) + remove_cpu_dev_symlink(policy, get_cpu_device(j)); + out_free_policy: cpufreq_policy_free(policy); return ret; } -static int cpufreq_offline(unsigned int cpu); - /** * cpufreq_add_dev - the cpufreq interface for a CPU device. * @dev: CPU device. @@ -1303,16 +1313,10 @@ static int cpufreq_add_dev(struct device *dev, struct subsys_interface *sif) /* Create sysfs link on CPU registration */ policy = per_cpu(cpufreq_cpu_data, cpu); - if (!policy || cpumask_test_and_set_cpu(cpu, policy->real_cpus)) - return 0; - - ret = add_cpu_dev_symlink(policy, dev); - if (ret) { - cpumask_clear_cpu(cpu, policy->real_cpus); - cpufreq_offline(cpu); - } + if (policy) + add_cpu_dev_symlink(policy, cpu); - return ret; + return 0; } static int cpufreq_offline(unsigned int cpu) @@ -2394,6 +2398,20 @@ EXPORT_SYMBOL_GPL(cpufreq_boost_enabled); *********************************************************************/ static enum cpuhp_state hp_online; +static int cpuhp_cpufreq_online(unsigned int cpu) +{ + cpufreq_online(cpu); + + return 0; +} + +static int cpuhp_cpufreq_offline(unsigned int cpu) +{ + cpufreq_offline(cpu); + + return 0; +} + /** * cpufreq_register_driver - register a CPU Frequency driver * @driver_data: A struct cpufreq_driver containing the values# @@ -2456,8 +2474,8 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data) } ret = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN, "cpufreq:online", - cpufreq_online, - cpufreq_offline); + cpuhp_cpufreq_online, + cpuhp_cpufreq_offline); if (ret < 0) goto err_if_unreg; hp_online = ret; diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c index 370593006f5f..cda8f62d555b 100644 --- a/drivers/cpuidle/cpuidle-powernv.c +++ b/drivers/cpuidle/cpuidle-powernv.c @@ -175,6 +175,24 @@ static int powernv_cpuidle_driver_init(void) drv->state_count += 1; } + /* + * On the PowerNV platform cpu_present may be less than cpu_possible in + * cases when firmware detects the CPU, but it is not available to the + * OS. If CONFIG_HOTPLUG_CPU=n, then such CPUs are not hotplugable at + * run time and hence cpu_devices are not created for those CPUs by the + * generic topology_init(). + * + * drv->cpumask defaults to cpu_possible_mask in + * __cpuidle_driver_init(). This breaks cpuidle on PowerNV where + * cpu_devices are not created for CPUs in cpu_possible_mask that + * cannot be hot-added later at run time. + * + * Trying cpuidle_register_device() on a CPU without a cpu_device is + * incorrect, so pass a correct CPU mask to the generic cpuidle driver. + */ + + drv->cpumask = (struct cpumask *)cpu_present_mask; + return 0; } diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c index 32100c4851dd..49cbdcba7883 100644 --- a/drivers/crypto/caam/caampkc.c +++ b/drivers/crypto/caam/caampkc.c @@ -506,7 +506,7 @@ static int caam_rsa_init_tfm(struct crypto_akcipher *tfm) ctx->dev = caam_jr_alloc(); if (IS_ERR(ctx->dev)) { - dev_err(ctx->dev, "Job Ring Device allocation for transform failed\n"); + pr_err("Job Ring Device allocation for transform failed\n"); return PTR_ERR(ctx->dev); } diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index fef39f9f41ee..5d7f73d60515 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -281,7 +281,8 @@ static int deinstantiate_rng(struct device *ctrldev, int state_handle_mask) /* Try to run it through DECO0 */ ret = run_descriptor_deco0(ctrldev, desc, &status); - if (ret || status) { + if (ret || + (status && status != JRSTA_SSRC_JUMP_HALT_CC)) { dev_err(ctrldev, "Failed to deinstantiate RNG4 SH%d\n", sh_idx); @@ -301,15 +302,13 @@ static int caam_remove(struct platform_device *pdev) struct device *ctrldev; struct caam_drv_private *ctrlpriv; struct caam_ctrl __iomem *ctrl; - int ring; ctrldev = &pdev->dev; ctrlpriv = dev_get_drvdata(ctrldev); ctrl = (struct caam_ctrl __iomem *)ctrlpriv->ctrl; - /* Remove platform devices for JobRs */ - for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) - of_device_unregister(ctrlpriv->jrpdev[ring]); + /* Remove platform devices under the crypto node */ + of_platform_depopulate(ctrldev); /* De-initialize RNG state handles initialized by this driver. */ if (ctrlpriv->rng4_sh_init) @@ -418,10 +417,21 @@ DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u32_ro, caam_debugfs_u32_get, NULL, "%llu\n"); DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n"); #endif +static const struct of_device_id caam_match[] = { + { + .compatible = "fsl,sec-v4.0", + }, + { + .compatible = "fsl,sec4.0", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, caam_match); + /* Probe routine for CAAM top (controller) level */ static int caam_probe(struct platform_device *pdev) { - int ret, ring, ridx, rspec, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN; + int ret, ring, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN; u64 caam_id; struct device *dev; struct device_node *nprop, *np; @@ -597,47 +607,24 @@ static int caam_probe(struct platform_device *pdev) goto iounmap_ctrl; } - /* - * Detect and enable JobRs - * First, find out how many ring spec'ed, allocate references - * for all, then go probe each one. - */ - rspec = 0; - for_each_available_child_of_node(nprop, np) - if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") || - of_device_is_compatible(np, "fsl,sec4.0-job-ring")) - rspec++; - - ctrlpriv->jrpdev = devm_kcalloc(&pdev->dev, rspec, - sizeof(*ctrlpriv->jrpdev), GFP_KERNEL); - if (ctrlpriv->jrpdev == NULL) { - ret = -ENOMEM; + ret = of_platform_populate(nprop, caam_match, NULL, dev); + if (ret) { + dev_err(dev, "JR platform devices creation error\n"); goto iounmap_ctrl; } ring = 0; - ridx = 0; - ctrlpriv->total_jobrs = 0; for_each_available_child_of_node(nprop, np) if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") || of_device_is_compatible(np, "fsl,sec4.0-job-ring")) { - ctrlpriv->jrpdev[ring] = - of_platform_device_create(np, NULL, dev); - if (!ctrlpriv->jrpdev[ring]) { - pr_warn("JR physical index %d: Platform device creation error\n", - ridx); - ridx++; - continue; - } ctrlpriv->jr[ring] = (struct caam_job_ring __iomem __force *) ((__force uint8_t *)ctrl + - (ridx + JR_BLOCK_NUMBER) * + (ring + JR_BLOCK_NUMBER) * BLOCK_OFFSET ); ctrlpriv->total_jobrs++; ring++; - ridx++; - } + } /* Check to see if QI present. If so, enable */ ctrlpriv->qi_present = @@ -847,17 +834,6 @@ disable_caam_ipg: return ret; } -static struct of_device_id caam_match[] = { - { - .compatible = "fsl,sec-v4.0", - }, - { - .compatible = "fsl,sec4.0", - }, - {}, -}; -MODULE_DEVICE_TABLE(of, caam_match); - static struct platform_driver caam_driver = { .driver = { .name = "caam", diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h index e2bcacc1a921..dbed8baeebe5 100644 --- a/drivers/crypto/caam/intern.h +++ b/drivers/crypto/caam/intern.h @@ -66,7 +66,6 @@ struct caam_drv_private_jr { struct caam_drv_private { struct device *dev; - struct platform_device **jrpdev; /* Alloc'ed array per sub-device */ struct platform_device *pdev; /* Physical-presence section */ diff --git a/drivers/crypto/ccp/ccp-dev-v5.c b/drivers/crypto/ccp/ccp-dev-v5.c index 41cc853f8569..fc08b4ed69d9 100644 --- a/drivers/crypto/ccp/ccp-dev-v5.c +++ b/drivers/crypto/ccp/ccp-dev-v5.c @@ -1015,6 +1015,7 @@ const struct ccp_vdata ccpv5a = { const struct ccp_vdata ccpv5b = { .version = CCP_VERSION(5, 0), + .dma_chan_attr = DMA_PRIVATE, .setup = ccp5other_config, .perform = &ccp5_actions, .bar = 2, diff --git a/drivers/crypto/ccp/ccp-dev.h b/drivers/crypto/ccp/ccp-dev.h index 2b5c01fade05..aa36f3f81860 100644 --- a/drivers/crypto/ccp/ccp-dev.h +++ b/drivers/crypto/ccp/ccp-dev.h @@ -179,6 +179,10 @@ /* ------------------------ General CCP Defines ------------------------ */ +#define CCP_DMA_DFLT 0x0 +#define CCP_DMA_PRIV 0x1 +#define CCP_DMA_PUB 0x2 + #define CCP_DMAPOOL_MAX_SIZE 64 #define CCP_DMAPOOL_ALIGN BIT(5) @@ -636,6 +640,7 @@ struct ccp_actions { /* Structure to hold CCP version-specific values */ struct ccp_vdata { const unsigned int version; + const unsigned int dma_chan_attr; void (*setup)(struct ccp_device *); const struct ccp_actions *perform; const unsigned int bar; diff --git a/drivers/crypto/ccp/ccp-dmaengine.c b/drivers/crypto/ccp/ccp-dmaengine.c index 8d0eeb46d4a2..e00be01fbf5a 100644 --- a/drivers/crypto/ccp/ccp-dmaengine.c +++ b/drivers/crypto/ccp/ccp-dmaengine.c @@ -10,6 +10,7 @@ * published by the Free Software Foundation. */ +#include <linux/module.h> #include <linux/kernel.h> #include <linux/dmaengine.h> #include <linux/spinlock.h> @@ -25,6 +26,37 @@ (mask == 0) ? 64 : fls64(mask); \ }) +/* The CCP as a DMA provider can be configured for public or private + * channels. Default is specified in the vdata for the device (PCI ID). + * This module parameter will override for all channels on all devices: + * dma_chan_attr = 0x2 to force all channels public + * = 0x1 to force all channels private + * = 0x0 to defer to the vdata setting + * = any other value: warning, revert to 0x0 + */ +static unsigned int dma_chan_attr = CCP_DMA_DFLT; +module_param(dma_chan_attr, uint, 0444); +MODULE_PARM_DESC(dma_chan_attr, "Set DMA channel visibility: 0 (default) = device defaults, 1 = make private, 2 = make public"); + +unsigned int ccp_get_dma_chan_attr(struct ccp_device *ccp) +{ + switch (dma_chan_attr) { + case CCP_DMA_DFLT: + return ccp->vdata->dma_chan_attr; + + case CCP_DMA_PRIV: + return DMA_PRIVATE; + + case CCP_DMA_PUB: + return 0; + + default: + dev_info_once(ccp->dev, "Invalid value for dma_chan_attr: %d\n", + dma_chan_attr); + return ccp->vdata->dma_chan_attr; + } +} + static void ccp_free_cmd_resources(struct ccp_device *ccp, struct list_head *list) { @@ -675,6 +707,15 @@ int ccp_dmaengine_register(struct ccp_device *ccp) dma_cap_set(DMA_SG, dma_dev->cap_mask); dma_cap_set(DMA_INTERRUPT, dma_dev->cap_mask); + /* The DMA channels for this device can be set to public or private, + * and overridden by the module parameter dma_chan_attr. + * Default: according to the value in vdata (dma_chan_attr=0) + * dma_chan_attr=0x1: all channels private (override vdata) + * dma_chan_attr=0x2: all channels public (override vdata) + */ + if (ccp_get_dma_chan_attr(ccp) == DMA_PRIVATE) + dma_cap_set(DMA_PRIVATE, dma_dev->cap_mask); + INIT_LIST_HEAD(&dma_dev->channels); for (i = 0; i < ccp->cmd_q_count; i++) { chan = ccp->ccp_dma_chan + i; diff --git a/drivers/dax/Kconfig b/drivers/dax/Kconfig index 3e2ab3b14eea..9e95bf94eb13 100644 --- a/drivers/dax/Kconfig +++ b/drivers/dax/Kconfig @@ -2,6 +2,7 @@ menuconfig DEV_DAX tristate "DAX: direct access to differentiated memory" default m if NVDIMM_DAX depends on TRANSPARENT_HUGEPAGE + select SRCU help Support raw access to differentiated (persistence, bandwidth, latency...) memory via an mmap(2) capable character diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c index 80c6db279ae1..806f180c80d8 100644 --- a/drivers/dax/dax.c +++ b/drivers/dax/dax.c @@ -25,6 +25,7 @@ #include "dax.h" static dev_t dax_devt; +DEFINE_STATIC_SRCU(dax_srcu); static struct class *dax_class; static DEFINE_IDA(dax_minor_ida); static int nr_dax = CONFIG_NR_DEV_DAX; @@ -60,7 +61,7 @@ struct dax_region { * @region - parent region * @dev - device backing the character device * @cdev - core chardev data - * @alive - !alive + rcu grace period == no new mappings can be established + * @alive - !alive + srcu grace period == no new mappings can be established * @id - child id in the region * @num_resources - number of physical address extents in this device * @res - array of physical address ranges @@ -569,7 +570,7 @@ static int __dax_dev_pud_fault(struct dax_dev *dax_dev, struct vm_fault *vmf) static int dax_dev_huge_fault(struct vm_fault *vmf, enum page_entry_size pe_size) { - int rc; + int rc, id; struct file *filp = vmf->vma->vm_file; struct dax_dev *dax_dev = filp->private_data; @@ -578,7 +579,7 @@ static int dax_dev_huge_fault(struct vm_fault *vmf, ? "write" : "read", vmf->vma->vm_start, vmf->vma->vm_end); - rcu_read_lock(); + id = srcu_read_lock(&dax_srcu); switch (pe_size) { case PE_SIZE_PTE: rc = __dax_dev_pte_fault(dax_dev, vmf); @@ -592,7 +593,7 @@ static int dax_dev_huge_fault(struct vm_fault *vmf, default: return VM_FAULT_FALLBACK; } - rcu_read_unlock(); + srcu_read_unlock(&dax_srcu, id); return rc; } @@ -713,11 +714,11 @@ static void unregister_dax_dev(void *dev) * Note, rcu is not protecting the liveness of dax_dev, rcu is * ensuring that any fault handlers that might have seen * dax_dev->alive == true, have completed. Any fault handlers - * that start after synchronize_rcu() has started will abort + * that start after synchronize_srcu() has started will abort * upon seeing dax_dev->alive == false. */ dax_dev->alive = false; - synchronize_rcu(); + synchronize_srcu(&dax_srcu); unmap_mapping_range(dax_dev->inode->i_mapping, 0, 0, 1); cdev_del(cdev); device_unregister(dev); diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c index e18dc596cf24..6204cc32d09c 100644 --- a/drivers/dma/bcm2835-dma.c +++ b/drivers/dma/bcm2835-dma.c @@ -251,8 +251,11 @@ static void bcm2835_dma_create_cb_set_length( */ /* have we filled in period_length yet? */ - if (*total_len + control_block->length < period_len) + if (*total_len + control_block->length < period_len) { + /* update number of bytes in this period so far */ + *total_len += control_block->length; return; + } /* calculate the length that remains to reach period_length */ control_block->length = period_len - *total_len; diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 24e0221fd66d..d9118ec23025 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -1108,12 +1108,14 @@ static struct dmaengine_unmap_pool *__get_unmap_pool(int nr) switch (order) { case 0 ... 1: return &unmap_pool[0]; +#if IS_ENABLED(CONFIG_DMA_ENGINE_RAID) case 2 ... 4: return &unmap_pool[1]; case 5 ... 7: return &unmap_pool[2]; case 8: return &unmap_pool[3]; +#endif default: BUG(); return NULL; diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index e7d404059b73..b372aad3b449 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -389,7 +389,6 @@ int __init efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md) return 0; } } - pr_err_once("requested map not found.\n"); return -ENOENT; } diff --git a/drivers/firmware/efi/esrt.c b/drivers/firmware/efi/esrt.c index 08b026864d4e..8554d7aec31c 100644 --- a/drivers/firmware/efi/esrt.c +++ b/drivers/firmware/efi/esrt.c @@ -254,7 +254,7 @@ void __init efi_esrt_init(void) rc = efi_mem_desc_lookup(efi.esrt, &md); if (rc < 0) { - pr_err("ESRT header is not in the memory map.\n"); + pr_warn("ESRT header is not in the memory map.\n"); return; } diff --git a/drivers/firmware/efi/libstub/gop.c b/drivers/firmware/efi/libstub/gop.c index 932742e4cf23..24c461dea7af 100644 --- a/drivers/firmware/efi/libstub/gop.c +++ b/drivers/firmware/efi/libstub/gop.c @@ -149,7 +149,8 @@ setup_gop32(efi_system_table_t *sys_table_arg, struct screen_info *si, status = __gop_query32(sys_table_arg, gop32, &info, &size, ¤t_fb_base); - if (status == EFI_SUCCESS && (!first_gop || conout_found)) { + if (status == EFI_SUCCESS && (!first_gop || conout_found) && + info->pixel_format != PIXEL_BLT_ONLY) { /* * Systems that use the UEFI Console Splitter may * provide multiple GOP devices, not all of which are @@ -266,7 +267,8 @@ setup_gop64(efi_system_table_t *sys_table_arg, struct screen_info *si, status = __gop_query64(sys_table_arg, gop64, &info, &size, ¤t_fb_base); - if (status == EFI_SUCCESS && (!first_gop || conout_found)) { + if (status == EFI_SUCCESS && (!first_gop || conout_found) && + info->pixel_format != PIXEL_BLT_ONLY) { /* * Systems that use the UEFI Console Splitter may * provide multiple GOP devices, not all of which are diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 9b37a3692b3f..2bd683e2be02 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -266,6 +266,9 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, goto fail_free_event; } + if (agpio->wake_capable == ACPI_WAKE_CAPABLE) + enable_irq_wake(irq); + list_add_tail(&event->node, &acpi_gpio->events); return AE_OK; @@ -339,6 +342,9 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) list_for_each_entry_safe_reverse(event, ep, &acpi_gpio->events, node) { struct gpio_desc *desc; + if (irqd_is_wakeup_set(irq_get_irq_data(event->irq))) + disable_irq_wake(event->irq); + free_irq(event->irq, event); desc = event->desc; if (WARN_ON(IS_ERR(desc))) @@ -571,8 +577,10 @@ struct gpio_desc *acpi_find_gpio(struct device *dev, } desc = acpi_get_gpiod_by_index(adev, propname, idx, &info); - if (!IS_ERR(desc) || (PTR_ERR(desc) == -EPROBE_DEFER)) + if (!IS_ERR(desc)) break; + if (PTR_ERR(desc) == -EPROBE_DEFER) + return ERR_CAST(desc); } /* Then from plain _CRS GPIOs */ diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 130d7d517a19..b78d9239e48f 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -1311,15 +1311,15 @@ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu, goto out_pm_put; } + mutex_lock(&gpu->lock); + fence = etnaviv_gpu_fence_alloc(gpu); if (!fence) { event_free(gpu, event); ret = -ENOMEM; - goto out_pm_put; + goto out_unlock; } - mutex_lock(&gpu->lock); - gpu->event[event].fence = fence; submit->fence = fence->seqno; gpu->active_fence = submit->fence; @@ -1357,6 +1357,7 @@ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu, hangcheck_timer_reset(gpu); ret = 0; +out_unlock: mutex_unlock(&gpu->lock); out_pm_put: diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c index b7d7721e72fa..40af17ec6312 100644 --- a/drivers/gpu/drm/i915/gvt/cfg_space.c +++ b/drivers/gpu/drm/i915/gvt/cfg_space.c @@ -285,9 +285,6 @@ int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset, { int ret; - if (vgpu->failsafe) - return 0; - if (WARN_ON(bytes > 4)) return -EINVAL; diff --git a/drivers/gpu/drm/i915/gvt/edid.c b/drivers/gpu/drm/i915/gvt/edid.c index f1648fe5e5ea..42cd09ec63fa 100644 --- a/drivers/gpu/drm/i915/gvt/edid.c +++ b/drivers/gpu/drm/i915/gvt/edid.c @@ -495,7 +495,8 @@ void intel_gvt_i2c_handle_aux_ch_write(struct intel_vgpu *vgpu, unsigned char val = edid_get_byte(vgpu); aux_data_for_write = (val << 16); - } + } else + aux_data_for_write = (0xff << 16); } /* write the return value in AUX_CH_DATA reg which includes: * ACK of I2C_WRITE diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c index f1f426a97aa9..d186c157f65f 100644 --- a/drivers/gpu/drm/i915/gvt/execlist.c +++ b/drivers/gpu/drm/i915/gvt/execlist.c @@ -775,7 +775,8 @@ static void init_vgpu_execlist(struct intel_vgpu *vgpu, int ring_id) _EL_OFFSET_STATUS_PTR); ctx_status_ptr.dw = vgpu_vreg(vgpu, ctx_status_ptr_reg); - ctx_status_ptr.read_ptr = ctx_status_ptr.write_ptr = 0x7; + ctx_status_ptr.read_ptr = 0; + ctx_status_ptr.write_ptr = 0x7; vgpu_vreg(vgpu, ctx_status_ptr_reg) = ctx_status_ptr.dw; } diff --git a/drivers/gpu/drm/i915/gvt/firmware.c b/drivers/gpu/drm/i915/gvt/firmware.c index 933a7c211a1c..dce8d15f706f 100644 --- a/drivers/gpu/drm/i915/gvt/firmware.c +++ b/drivers/gpu/drm/i915/gvt/firmware.c @@ -75,11 +75,11 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt) struct gvt_firmware_header *h; void *firmware; void *p; - unsigned long size; + unsigned long size, crc32_start; int i; int ret; - size = sizeof(*h) + info->mmio_size + info->cfg_space_size - 1; + size = sizeof(*h) + info->mmio_size + info->cfg_space_size; firmware = vzalloc(size); if (!firmware) return -ENOMEM; @@ -112,6 +112,9 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt) memcpy(gvt->firmware.mmio, p, info->mmio_size); + crc32_start = offsetof(struct gvt_firmware_header, crc32) + 4; + h->crc32 = crc32_le(0, firmware + crc32_start, size - crc32_start); + firmware_attr.size = size; firmware_attr.private = firmware; @@ -234,7 +237,7 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt) firmware->mmio = mem; - sprintf(path, "%s/vid_0x%04x_did_0x%04x_rid_0x%04x.golden_hw_state", + sprintf(path, "%s/vid_0x%04x_did_0x%04x_rid_0x%02x.golden_hw_state", GVT_FIRMWARE_PATH, pdev->vendor, pdev->device, pdev->revision); diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index da7312715824..b832bea64e03 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -1837,11 +1837,15 @@ static int emulate_gtt_mmio_write(struct intel_vgpu *vgpu, unsigned int off, ret = gtt_entry_p2m(vgpu, &e, &m); if (ret) { gvt_vgpu_err("fail to translate guest gtt entry\n"); - return ret; + /* guest driver may read/write the entry when partial + * update the entry in this situation p2m will fail + * settting the shadow entry to point to a scratch page + */ + ops->set_pfn(&m, gvt->gtt.scratch_ggtt_mfn); } } else { m = e; - m.val64 = 0; + ops->set_pfn(&m, gvt->gtt.scratch_ggtt_mfn); } ggtt_set_shadow_entry(ggtt_mm, &m, g_gtt_index); diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c index 3b9d59e457ba..ef3baa0c4754 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.c +++ b/drivers/gpu/drm/i915/gvt/gvt.c @@ -52,6 +52,8 @@ static const struct intel_gvt_ops intel_gvt_ops = { .vgpu_create = intel_gvt_create_vgpu, .vgpu_destroy = intel_gvt_destroy_vgpu, .vgpu_reset = intel_gvt_reset_vgpu, + .vgpu_activate = intel_gvt_activate_vgpu, + .vgpu_deactivate = intel_gvt_deactivate_vgpu, }; /** diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index 6dfc48b63b71..becae2fa3b29 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -382,7 +382,8 @@ void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu); void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr, unsigned int engine_mask); void intel_gvt_reset_vgpu(struct intel_vgpu *vgpu); - +void intel_gvt_activate_vgpu(struct intel_vgpu *vgpu); +void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu); /* validating GM functions */ #define vgpu_gmadr_is_aperture(vgpu, gmadr) \ @@ -449,6 +450,8 @@ struct intel_gvt_ops { struct intel_vgpu_type *); void (*vgpu_destroy)(struct intel_vgpu *); void (*vgpu_reset)(struct intel_vgpu *); + void (*vgpu_activate)(struct intel_vgpu *); + void (*vgpu_deactivate)(struct intel_vgpu *); }; diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index eaff45d417e8..6da9ae1618e3 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -970,6 +970,14 @@ static int dp_aux_ch_ctl_mmio_write(struct intel_vgpu *vgpu, return 0; } +static int mbctl_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + *(u32 *)p_data &= (~GEN6_MBCTL_ENABLE_BOOT_FETCH); + write_vreg(vgpu, offset, p_data, bytes); + return 0; +} + static int vga_control_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, void *p_data, unsigned int bytes) { @@ -2238,7 +2246,7 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_D(0x7180, D_ALL); MMIO_D(0x7408, D_ALL); MMIO_D(0x7c00, D_ALL); - MMIO_D(GEN6_MBCTL, D_ALL); + MMIO_DH(GEN6_MBCTL, D_ALL, NULL, mbctl_write); MMIO_D(0x911c, D_ALL); MMIO_D(0x9120, D_ALL); MMIO_DFH(GEN7_UCGCTL4, D_ALL, F_CMD_ACCESS, NULL, NULL); diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 1ea3eb270de8..e466259034e2 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -544,6 +544,8 @@ static int intel_vgpu_open(struct mdev_device *mdev) if (ret) goto undo_group; + intel_gvt_ops->vgpu_activate(vgpu); + atomic_set(&vgpu->vdev.released, 0); return ret; @@ -569,6 +571,8 @@ static void __intel_vgpu_release(struct intel_vgpu *vgpu) if (atomic_cmpxchg(&vgpu->vdev.released, 0, 1)) return; + intel_gvt_ops->vgpu_deactivate(vgpu); + ret = vfio_unregister_notifier(mdev_dev(vgpu->vdev.mdev), VFIO_IOMMU_NOTIFY, &vgpu->vdev.iommu_notifier); WARN(ret, "vfio_unregister_notifier for iommu failed: %d\n", ret); @@ -1326,6 +1330,7 @@ static int kvmgt_guest_init(struct mdev_device *mdev) vgpu->handle = (unsigned long)info; info->vgpu = vgpu; info->kvm = kvm; + kvm_get_kvm(info->kvm); kvmgt_protect_table_init(info); gvt_cache_init(vgpu); @@ -1339,14 +1344,8 @@ static int kvmgt_guest_init(struct mdev_device *mdev) static bool kvmgt_guest_exit(struct kvmgt_guest_info *info) { - struct intel_vgpu *vgpu = info->vgpu; - - if (!info) { - gvt_vgpu_err("kvmgt_guest_info invalid\n"); - return false; - } - kvm_page_track_unregister_notifier(info->kvm, &info->track_node); + kvm_put_kvm(info->kvm); kvmgt_protect_table_destroy(info); gvt_cache_destroy(info->vgpu); vfree(info); diff --git a/drivers/gpu/drm/i915/gvt/render.c b/drivers/gpu/drm/i915/gvt/render.c index 95ee091ce085..0beb83563b08 100644 --- a/drivers/gpu/drm/i915/gvt/render.c +++ b/drivers/gpu/drm/i915/gvt/render.c @@ -207,7 +207,7 @@ static void load_mocs(struct intel_vgpu *vgpu, int ring_id) l3_offset.reg = 0xb020; for (i = 0; i < 32; i++) { gen9_render_mocs_L3[i] = I915_READ(l3_offset); - I915_WRITE(l3_offset, vgpu_vreg(vgpu, offset)); + I915_WRITE(l3_offset, vgpu_vreg(vgpu, l3_offset)); POSTING_READ(l3_offset); l3_offset.reg += 4; } diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index c4353ed86d4b..a44782412f2c 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -127,6 +127,11 @@ static int populate_shadow_context(struct intel_vgpu_workload *workload) return 0; } +static inline bool is_gvt_request(struct drm_i915_gem_request *req) +{ + return i915_gem_context_force_single_submission(req->ctx); +} + static int shadow_context_status_change(struct notifier_block *nb, unsigned long action, void *data) { @@ -137,7 +142,7 @@ static int shadow_context_status_change(struct notifier_block *nb, struct intel_vgpu_workload *workload = scheduler->current_workload[req->engine->id]; - if (unlikely(!workload)) + if (!is_gvt_request(req) || unlikely(!workload)) return NOTIFY_OK; switch (action) { diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c index 41cfa5ccae84..649ef280cc9a 100644 --- a/drivers/gpu/drm/i915/gvt/vgpu.c +++ b/drivers/gpu/drm/i915/gvt/vgpu.c @@ -72,7 +72,7 @@ static struct { char *name; } vgpu_types[] = { /* Fixed vGPU type table */ - { MB_TO_BYTES(64), MB_TO_BYTES(512), 4, GVT_EDID_1024_768, "8" }, + { MB_TO_BYTES(64), MB_TO_BYTES(384), 4, GVT_EDID_1024_768, "8" }, { MB_TO_BYTES(128), MB_TO_BYTES(512), 4, GVT_EDID_1920_1200, "4" }, { MB_TO_BYTES(256), MB_TO_BYTES(1024), 4, GVT_EDID_1920_1200, "2" }, { MB_TO_BYTES(512), MB_TO_BYTES(2048), 4, GVT_EDID_1920_1200, "1" }, @@ -179,20 +179,34 @@ static void intel_gvt_update_vgpu_types(struct intel_gvt *gvt) } /** - * intel_gvt_destroy_vgpu - destroy a virtual GPU + * intel_gvt_active_vgpu - activate a virtual GPU * @vgpu: virtual GPU * - * This function is called when user wants to destroy a virtual GPU. + * This function is called when user wants to activate a virtual GPU. * */ -void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu) +void intel_gvt_activate_vgpu(struct intel_vgpu *vgpu) +{ + mutex_lock(&vgpu->gvt->lock); + vgpu->active = true; + mutex_unlock(&vgpu->gvt->lock); +} + +/** + * intel_gvt_deactive_vgpu - deactivate a virtual GPU + * @vgpu: virtual GPU + * + * This function is called when user wants to deactivate a virtual GPU. + * All virtual GPU runtime information will be destroyed. + * + */ +void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu) { struct intel_gvt *gvt = vgpu->gvt; mutex_lock(&gvt->lock); vgpu->active = false; - idr_remove(&gvt->vgpu_idr, vgpu->id); if (atomic_read(&vgpu->running_workload_num)) { mutex_unlock(&gvt->lock); @@ -201,6 +215,26 @@ void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu) } intel_vgpu_stop_schedule(vgpu); + + mutex_unlock(&gvt->lock); +} + +/** + * intel_gvt_destroy_vgpu - destroy a virtual GPU + * @vgpu: virtual GPU + * + * This function is called when user wants to destroy a virtual GPU. + * + */ +void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu) +{ + struct intel_gvt *gvt = vgpu->gvt; + + mutex_lock(&gvt->lock); + + WARN(vgpu->active, "vGPU is still active!\n"); + + idr_remove(&gvt->vgpu_idr, vgpu->id); intel_vgpu_clean_sched_policy(vgpu); intel_vgpu_clean_gvt_context(vgpu); intel_vgpu_clean_execlist(vgpu); @@ -277,7 +311,6 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt, if (ret) goto out_clean_shadow_ctx; - vgpu->active = true; mutex_unlock(&gvt->lock); return vgpu; diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 1c75402a59c1..5c089b3c2a7e 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1434,8 +1434,6 @@ static int i915_drm_suspend(struct drm_device *dev) goto out; } - intel_guc_suspend(dev_priv); - intel_display_suspend(dev); intel_dp_mst_suspend(dev); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 1e53c31b6826..46fcd8b7080a 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -806,6 +806,7 @@ struct intel_csr { func(has_resource_streamer); \ func(has_runtime_pm); \ func(has_snoop); \ + func(unfenced_needs_alignment); \ func(cursor_needs_physical); \ func(hws_needs_physical); \ func(overlay_needs_physical); \ diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 67b1fc5a0331..fe531f904062 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4348,6 +4348,8 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv) i915_gem_context_lost(dev_priv); mutex_unlock(&dev->struct_mutex); + intel_guc_suspend(dev_priv); + cancel_delayed_work_sync(&dev_priv->gpu_error.hangcheck_work); cancel_delayed_work_sync(&dev_priv->gt.retire_work); diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 30e0675fd7da..15a15d00a6bf 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -888,6 +888,7 @@ i915_gem_execbuffer_reserve(struct intel_engine_cs *engine, struct list_head ordered_vmas; struct list_head pinned_vmas; bool has_fenced_gpu_access = INTEL_GEN(engine->i915) < 4; + bool needs_unfenced_map = INTEL_INFO(engine->i915)->unfenced_needs_alignment; int retry; vm = list_first_entry(vmas, struct i915_vma, exec_list)->vm; @@ -908,7 +909,8 @@ i915_gem_execbuffer_reserve(struct intel_engine_cs *engine, if (!has_fenced_gpu_access) entry->flags &= ~EXEC_OBJECT_NEEDS_FENCE; need_fence = - entry->flags & EXEC_OBJECT_NEEDS_FENCE && + (entry->flags & EXEC_OBJECT_NEEDS_FENCE || + needs_unfenced_map) && i915_gem_object_is_tiled(obj); need_mappable = need_fence || need_reloc_mappable(vma); diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 2801a4d56324..96e45a4d5441 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -2704,7 +2704,7 @@ void i915_gem_gtt_finish_pages(struct drm_i915_gem_object *obj, struct i915_ggtt *ggtt = &dev_priv->ggtt; if (unlikely(ggtt->do_idle_maps)) { - if (i915_gem_wait_for_idle(dev_priv, I915_WAIT_LOCKED)) { + if (i915_gem_wait_for_idle(dev_priv, 0)) { DRM_ERROR("Failed to wait for idle; VT'd may hang.\n"); /* Wait a bit, in hopes it avoids the hang */ udelay(10); diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c index e7c3c0318ff6..da70bfe97ec5 100644 --- a/drivers/gpu/drm/i915/i915_gem_request.c +++ b/drivers/gpu/drm/i915/i915_gem_request.c @@ -37,6 +37,17 @@ static const char *i915_fence_get_driver_name(struct dma_fence *fence) static const char *i915_fence_get_timeline_name(struct dma_fence *fence) { + /* The timeline struct (as part of the ppgtt underneath a context) + * may be freed when the request is no longer in use by the GPU. + * We could extend the life of a context to beyond that of all + * fences, possibly keeping the hw resource around indefinitely, + * or we just give them a false name. Since + * dma_fence_ops.get_timeline_name is a debug feature, the occasional + * lie seems justifiable. + */ + if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) + return "signaled"; + return to_request(fence)->timeline->common->name; } diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c index d5d2b4c6ed38..70b3832a79dd 100644 --- a/drivers/gpu/drm/i915/i915_gem_shrinker.c +++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c @@ -53,6 +53,17 @@ static bool i915_gem_shrinker_lock(struct drm_device *dev, bool *unlock) BUG(); } +static void i915_gem_shrinker_unlock(struct drm_device *dev, bool unlock) +{ + if (!unlock) + return; + + mutex_unlock(&dev->struct_mutex); + + /* expedite the RCU grace period to free some request slabs */ + synchronize_rcu_expedited(); +} + static bool any_vma_pinned(struct drm_i915_gem_object *obj) { struct i915_vma *vma; @@ -232,11 +243,8 @@ i915_gem_shrink(struct drm_i915_private *dev_priv, intel_runtime_pm_put(dev_priv); i915_gem_retire_requests(dev_priv); - if (unlock) - mutex_unlock(&dev_priv->drm.struct_mutex); - /* expedite the RCU grace period to free some request slabs */ - synchronize_rcu_expedited(); + i915_gem_shrinker_unlock(&dev_priv->drm, unlock); return count; } @@ -293,8 +301,7 @@ i915_gem_shrinker_count(struct shrinker *shrinker, struct shrink_control *sc) count += obj->base.size >> PAGE_SHIFT; } - if (unlock) - mutex_unlock(&dev->struct_mutex); + i915_gem_shrinker_unlock(dev, unlock); return count; } @@ -321,8 +328,8 @@ i915_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc) sc->nr_to_scan - freed, I915_SHRINK_BOUND | I915_SHRINK_UNBOUND); - if (unlock) - mutex_unlock(&dev->struct_mutex); + + i915_gem_shrinker_unlock(dev, unlock); return freed; } @@ -364,8 +371,7 @@ i915_gem_shrinker_unlock_uninterruptible(struct drm_i915_private *dev_priv, struct shrinker_lock_uninterruptible *slu) { dev_priv->mm.interruptible = slu->was_interruptible; - if (slu->unlock) - mutex_unlock(&dev_priv->drm.struct_mutex); + i915_gem_shrinker_unlock(&dev_priv->drm, slu->unlock); } static int diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index ecb487b5356f..9bbbd4e83e3c 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -60,6 +60,7 @@ .has_overlay = 1, .overlay_needs_physical = 1, \ .has_gmch_display = 1, \ .hws_needs_physical = 1, \ + .unfenced_needs_alignment = 1, \ .ring_mask = RENDER_RING, \ GEN_DEFAULT_PIPEOFFSETS, \ CURSOR_OFFSETS @@ -101,6 +102,7 @@ static const struct intel_device_info intel_i915g_info = { .platform = INTEL_I915G, .cursor_needs_physical = 1, .has_overlay = 1, .overlay_needs_physical = 1, .hws_needs_physical = 1, + .unfenced_needs_alignment = 1, }; static const struct intel_device_info intel_i915gm_info = { @@ -112,6 +114,7 @@ static const struct intel_device_info intel_i915gm_info = { .supports_tv = 1, .has_fbc = 1, .hws_needs_physical = 1, + .unfenced_needs_alignment = 1, }; static const struct intel_device_info intel_i945g_info = { @@ -120,6 +123,7 @@ static const struct intel_device_info intel_i945g_info = { .has_hotplug = 1, .cursor_needs_physical = 1, .has_overlay = 1, .overlay_needs_physical = 1, .hws_needs_physical = 1, + .unfenced_needs_alignment = 1, }; static const struct intel_device_info intel_i945gm_info = { @@ -130,6 +134,7 @@ static const struct intel_device_info intel_i945gm_info = { .supports_tv = 1, .has_fbc = 1, .hws_needs_physical = 1, + .unfenced_needs_alignment = 1, }; static const struct intel_device_info intel_g33_info = { diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index a1b7eec58be2..70964ca9251e 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -1705,7 +1705,7 @@ i915_perf_open_ioctl_locked(struct drm_i915_private *dev_priv, */ if (WARN_ON(stream->sample_flags != props->sample_flags)) { ret = -ENODEV; - goto err_alloc; + goto err_flags; } list_add(&stream->link, &dev_priv->perf.streams); @@ -1728,6 +1728,7 @@ i915_perf_open_ioctl_locked(struct drm_i915_private *dev_priv, err_open: list_del(&stream->link); +err_flags: if (stream->ops->destroy) stream->ops->destroy(stream); err_alloc: @@ -1793,6 +1794,11 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv, if (ret) return ret; + if (id == 0 || id >= DRM_I915_PERF_PROP_MAX) { + DRM_DEBUG("Unknown i915 perf property ID\n"); + return -EINVAL; + } + switch ((enum drm_i915_perf_property_id)id) { case DRM_I915_PERF_PROP_CTX_HANDLE: props->single_context = 1; @@ -1862,9 +1868,8 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv, props->oa_periodic = true; props->oa_period_exponent = value; break; - default: + case DRM_I915_PERF_PROP_MAX: MISSING_CASE(id); - DRM_DEBUG("Unknown i915 perf property ID\n"); return -EINVAL; } diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 471af3b480ad..47517a02f0a4 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -670,15 +670,14 @@ static void execlists_submit_request(struct drm_i915_gem_request *request) static struct intel_engine_cs * pt_lock_engine(struct i915_priotree *pt, struct intel_engine_cs *locked) { - struct intel_engine_cs *engine; + struct intel_engine_cs *engine = + container_of(pt, struct drm_i915_gem_request, priotree)->engine; + + GEM_BUG_ON(!locked); - engine = container_of(pt, - struct drm_i915_gem_request, - priotree)->engine; if (engine != locked) { - if (locked) - spin_unlock_irq(&locked->timeline->lock); - spin_lock_irq(&engine->timeline->lock); + spin_unlock(&locked->timeline->lock); + spin_lock(&engine->timeline->lock); } return engine; @@ -686,7 +685,7 @@ pt_lock_engine(struct i915_priotree *pt, struct intel_engine_cs *locked) static void execlists_schedule(struct drm_i915_gem_request *request, int prio) { - struct intel_engine_cs *engine = NULL; + struct intel_engine_cs *engine; struct i915_dependency *dep, *p; struct i915_dependency stack; LIST_HEAD(dfs); @@ -720,26 +719,23 @@ static void execlists_schedule(struct drm_i915_gem_request *request, int prio) list_for_each_entry_safe(dep, p, &dfs, dfs_link) { struct i915_priotree *pt = dep->signaler; - list_for_each_entry(p, &pt->signalers_list, signal_link) + /* Within an engine, there can be no cycle, but we may + * refer to the same dependency chain multiple times + * (redundant dependencies are not eliminated) and across + * engines. + */ + list_for_each_entry(p, &pt->signalers_list, signal_link) { + GEM_BUG_ON(p->signaler->priority < pt->priority); if (prio > READ_ONCE(p->signaler->priority)) list_move_tail(&p->dfs_link, &dfs); + } list_safe_reset_next(dep, p, dfs_link); - if (!RB_EMPTY_NODE(&pt->node)) - continue; - - engine = pt_lock_engine(pt, engine); - - /* If it is not already in the rbtree, we can update the - * priority inplace and skip over it (and its dependencies) - * if it is referenced *again* as we descend the dfs. - */ - if (prio > pt->priority && RB_EMPTY_NODE(&pt->node)) { - pt->priority = prio; - list_del_init(&dep->dfs_link); - } } + engine = request->engine; + spin_lock_irq(&engine->timeline->lock); + /* Fifo and depth-first replacement ensure our deps execute before us */ list_for_each_entry_safe_reverse(dep, p, &dfs, dfs_link) { struct i915_priotree *pt = dep->signaler; @@ -751,16 +747,15 @@ static void execlists_schedule(struct drm_i915_gem_request *request, int prio) if (prio <= pt->priority) continue; - GEM_BUG_ON(RB_EMPTY_NODE(&pt->node)); - pt->priority = prio; - rb_erase(&pt->node, &engine->execlist_queue); - if (insert_request(pt, &engine->execlist_queue)) - engine->execlist_first = &pt->node; + if (!RB_EMPTY_NODE(&pt->node)) { + rb_erase(&pt->node, &engine->execlist_queue); + if (insert_request(pt, &engine->execlist_queue)) + engine->execlist_first = &pt->node; + } } - if (engine) - spin_unlock_irq(&engine->timeline->lock); + spin_unlock_irq(&engine->timeline->lock); /* XXX Do we need to preempt to make room for us and our deps? */ } @@ -1440,7 +1435,9 @@ static void reset_common_ring(struct intel_engine_cs *engine, GEM_BUG_ON(request->ctx != port[0].request->ctx); /* Reset WaIdleLiteRestore:bdw,skl as well */ - request->tail = request->wa_tail - WA_TAIL_DWORDS * sizeof(u32); + request->tail = + intel_ring_wrap(request->ring, + request->wa_tail - WA_TAIL_DWORDS*sizeof(u32)); } static int intel_logical_ring_emit_pdps(struct drm_i915_gem_request *req) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 91bc4abf5d3e..6c5f9958197d 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -2024,6 +2024,8 @@ static int intel_ring_context_pin(struct intel_engine_cs *engine, ret = context_pin(ctx, flags); if (ret) goto error; + + ce->state->obj->mm.dirty = true; } /* The kernel context is only used as a placeholder for flushing the diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 13dccb18cd43..8cb2078c5bfc 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -521,11 +521,17 @@ static inline void intel_ring_advance(struct intel_ring *ring) */ } +static inline u32 +intel_ring_wrap(const struct intel_ring *ring, u32 pos) +{ + return pos & (ring->size - 1); +} + static inline u32 intel_ring_offset(struct intel_ring *ring, void *addr) { /* Don't write ring->size (equivalent to 0) as that hangs some GPUs. */ u32 offset = addr - ring->vaddr; - return offset & (ring->size - 1); + return intel_ring_wrap(ring, offset); } int __intel_ring_space(int head, int tail, int size); diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index 4414cf73735d..36602ac7e248 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2016 The Linux Foundation. All rights reserved. +/* Copyright (c) 2016-2017 The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -534,7 +534,7 @@ static void a5xx_destroy(struct msm_gpu *gpu) } if (a5xx_gpu->gpmu_bo) { - if (a5xx_gpu->gpmu_bo) + if (a5xx_gpu->gpmu_iova) msm_gem_put_iova(a5xx_gpu->gpmu_bo, gpu->id); drm_gem_object_unreference_unlocked(a5xx_gpu->gpmu_bo); } @@ -860,7 +860,9 @@ static const struct adreno_gpu_funcs funcs = { .idle = a5xx_idle, .irq = a5xx_irq, .destroy = a5xx_destroy, +#ifdef CONFIG_DEBUG_FS .show = a5xx_show, +#endif }, .get_timestamp = a5xx_get_timestamp, }; diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index c9bd1e6225f4..5ae65426b4e5 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -418,18 +418,27 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev, return 0; } -void adreno_gpu_cleanup(struct adreno_gpu *gpu) +void adreno_gpu_cleanup(struct adreno_gpu *adreno_gpu) { - if (gpu->memptrs_bo) { - if (gpu->memptrs) - msm_gem_put_vaddr(gpu->memptrs_bo); + struct msm_gpu *gpu = &adreno_gpu->base; + + if (adreno_gpu->memptrs_bo) { + if (adreno_gpu->memptrs) + msm_gem_put_vaddr(adreno_gpu->memptrs_bo); + + if (adreno_gpu->memptrs_iova) + msm_gem_put_iova(adreno_gpu->memptrs_bo, gpu->id); + + drm_gem_object_unreference_unlocked(adreno_gpu->memptrs_bo); + } + release_firmware(adreno_gpu->pm4); + release_firmware(adreno_gpu->pfp); - if (gpu->memptrs_iova) - msm_gem_put_iova(gpu->memptrs_bo, gpu->base.id); + msm_gpu_cleanup(gpu); - drm_gem_object_unreference_unlocked(gpu->memptrs_bo); + if (gpu->aspace) { + gpu->aspace->mmu->funcs->detach(gpu->aspace->mmu, + iommu_ports, ARRAY_SIZE(iommu_ports)); + msm_gem_address_space_destroy(gpu->aspace); } - release_firmware(gpu->pm4); - release_firmware(gpu->pfp); - msm_gpu_cleanup(&gpu->base); } diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index 921270ea6059..a879ffa534b4 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -171,7 +171,7 @@ dsi_mgr_phy_enable(int id, } } } else { - msm_dsi_host_reset_phy(mdsi->host); + msm_dsi_host_reset_phy(msm_dsi->host); ret = enable_phy(msm_dsi, src_pll_id, &shared_timings[id]); if (ret) return ret; diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_audio.c b/drivers/gpu/drm/msm/hdmi/hdmi_audio.c index a54d3bb5baad..8177e8511afd 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_audio.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_audio.c @@ -18,13 +18,6 @@ #include <linux/hdmi.h> #include "hdmi.h" - -/* Supported HDMI Audio channels */ -#define MSM_HDMI_AUDIO_CHANNEL_2 0 -#define MSM_HDMI_AUDIO_CHANNEL_4 1 -#define MSM_HDMI_AUDIO_CHANNEL_6 2 -#define MSM_HDMI_AUDIO_CHANNEL_8 3 - /* maps MSM_HDMI_AUDIO_CHANNEL_n consts used by audio driver to # of channels: */ static int nchannels[] = { 2, 4, 6, 8 }; diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.h b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.h index 611da7a660c9..238901987e00 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.h +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.h @@ -18,7 +18,8 @@ #ifndef __MDP5_PIPE_H__ #define __MDP5_PIPE_H__ -#define SSPP_MAX (SSPP_RGB3 + 1) /* TODO: Add SSPP_MAX in mdp5.xml.h */ +/* TODO: Add SSPP_MAX in mdp5.xml.h */ +#define SSPP_MAX (SSPP_CURSOR1 + 1) /* represents a hw pipe, which is dynamically assigned to a plane */ struct mdp5_hw_pipe { diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 59811f29607d..68e509b3b9e4 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -812,6 +812,12 @@ struct drm_gem_object *msm_gem_new(struct drm_device *dev, size = PAGE_ALIGN(size); + /* Disallow zero sized objects as they make the underlying + * infrastructure grumpy + */ + if (size == 0) + return ERR_PTR(-EINVAL); + ret = msm_gem_new_impl(dev, size, flags, NULL, &obj); if (ret) goto fail; diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 99e05aacbee1..af5b6ba4095b 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -706,9 +706,6 @@ void msm_gpu_cleanup(struct msm_gpu *gpu) msm_ringbuffer_destroy(gpu->rb); } - if (gpu->aspace) - msm_gem_address_space_destroy(gpu->aspace); - if (gpu->fctx) msm_fence_context_free(gpu->fctx); } diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 0b4440ffbeae..a9182d5e6011 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -995,7 +995,6 @@ nv50_wndw_atomic_destroy_state(struct drm_plane *plane, { struct nv50_wndw_atom *asyw = nv50_wndw_atom(state); __drm_atomic_helper_plane_destroy_state(&asyw->state); - dma_fence_put(asyw->state.fence); kfree(asyw); } @@ -1007,7 +1006,6 @@ nv50_wndw_atomic_duplicate_state(struct drm_plane *plane) if (!(asyw = kmalloc(sizeof(*asyw), GFP_KERNEL))) return NULL; __drm_atomic_helper_plane_duplicate_state(plane, &asyw->state); - asyw->state.fence = NULL; asyw->interval = 1; asyw->sema = armw->sema; asyw->ntfy = armw->ntfy; @@ -2036,6 +2034,7 @@ nv50_head_atomic_check_mode(struct nv50_head *head, struct nv50_head_atom *asyh) u32 vbackp = (mode->vtotal - mode->vsync_end) * vscan / ilace; u32 hfrontp = mode->hsync_start - mode->hdisplay; u32 vfrontp = (mode->vsync_start - mode->vdisplay) * vscan / ilace; + u32 blankus; struct nv50_head_mode *m = &asyh->mode; m->h.active = mode->htotal; @@ -2049,9 +2048,10 @@ nv50_head_atomic_check_mode(struct nv50_head *head, struct nv50_head_atom *asyh) m->v.blanks = m->v.active - vfrontp - 1; /*XXX: Safe underestimate, even "0" works */ - m->v.blankus = (m->v.active - mode->vdisplay - 2) * m->h.active; - m->v.blankus *= 1000; - m->v.blankus /= mode->clock; + blankus = (m->v.active - mode->vdisplay - 2) * m->h.active; + blankus *= 1000; + blankus /= mode->clock; + m->v.blankus = blankus; if (mode->flags & DRM_MODE_FLAG_INTERLACE) { m->v.blank2e = m->v.active + m->v.synce + vbackp; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c index 273562dd6bbd..3b86a7399567 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c @@ -714,7 +714,7 @@ nv4a_chipset = { .i2c = nv04_i2c_new, .imem = nv40_instmem_new, .mc = nv44_mc_new, - .mmu = nv44_mmu_new, + .mmu = nv04_mmu_new, .pci = nv40_pci_new, .therm = nv40_therm_new, .timer = nv41_timer_new, @@ -2271,6 +2271,35 @@ nv136_chipset = { .fifo = gp100_fifo_new, }; +static const struct nvkm_device_chip +nv137_chipset = { + .name = "GP107", + .bar = gf100_bar_new, + .bios = nvkm_bios_new, + .bus = gf100_bus_new, + .devinit = gm200_devinit_new, + .fb = gp102_fb_new, + .fuse = gm107_fuse_new, + .gpio = gk104_gpio_new, + .i2c = gm200_i2c_new, + .ibus = gm200_ibus_new, + .imem = nv50_instmem_new, + .ltc = gp100_ltc_new, + .mc = gp100_mc_new, + .mmu = gf100_mmu_new, + .pci = gp100_pci_new, + .pmu = gp102_pmu_new, + .timer = gk20a_timer_new, + .top = gk104_top_new, + .ce[0] = gp102_ce_new, + .ce[1] = gp102_ce_new, + .ce[2] = gp102_ce_new, + .ce[3] = gp102_ce_new, + .disp = gp102_disp_new, + .dma = gf119_dma_new, + .fifo = gp100_fifo_new, +}; + static int nvkm_device_event_ctor(struct nvkm_object *object, void *data, u32 size, struct nvkm_notify *notify) @@ -2708,6 +2737,7 @@ nvkm_device_ctor(const struct nvkm_device_func *func, case 0x132: device->chip = &nv132_chipset; break; case 0x134: device->chip = &nv134_chipset; break; case 0x136: device->chip = &nv136_chipset; break; + case 0x137: device->chip = &nv137_chipset; break; default: nvdev_error(device, "unknown chipset (%08x)\n", boot0); goto done; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c index 003ac915eaad..8a8895246d26 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c @@ -198,7 +198,7 @@ nv31_mpeg_intr(struct nvkm_engine *engine) } if (type == 0x00000010) { - if (!nv31_mpeg_mthd(mpeg, mthd, data)) + if (nv31_mpeg_mthd(mpeg, mthd, data)) show &= ~0x01000000; } } diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c index e536f37e24b0..c3cf02ed468e 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c @@ -172,7 +172,7 @@ nv44_mpeg_intr(struct nvkm_engine *engine) } if (type == 0x00000010) { - if (!nv44_mpeg_mthd(subdev->device, mthd, data)) + if (nv44_mpeg_mthd(subdev->device, mthd, data)) show &= ~0x01000000; } } diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 684f1703aa5c..aaa3e80fecb4 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -213,8 +213,8 @@ static void radeon_evict_flags(struct ttm_buffer_object *bo, rbo->placement.num_busy_placement = 0; for (i = 0; i < rbo->placement.num_placement; i++) { if (rbo->placements[i].flags & TTM_PL_FLAG_VRAM) { - if (rbo->placements[0].fpfn < fpfn) - rbo->placements[0].fpfn = fpfn; + if (rbo->placements[i].fpfn < fpfn) + rbo->placements[i].fpfn = fpfn; } else { rbo->placement.busy_placement = &rbo->placements[i]; diff --git a/drivers/gpu/drm/ttm/ttm_object.c b/drivers/gpu/drm/ttm/ttm_object.c index fdb451e3ec01..26a7ad0f4789 100644 --- a/drivers/gpu/drm/ttm/ttm_object.c +++ b/drivers/gpu/drm/ttm/ttm_object.c @@ -179,7 +179,7 @@ int ttm_base_object_init(struct ttm_object_file *tfile, if (unlikely(ret != 0)) goto out_err0; - ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL); + ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL, false); if (unlikely(ret != 0)) goto out_err1; @@ -318,7 +318,8 @@ EXPORT_SYMBOL(ttm_ref_object_exists); int ttm_ref_object_add(struct ttm_object_file *tfile, struct ttm_base_object *base, - enum ttm_ref_type ref_type, bool *existed) + enum ttm_ref_type ref_type, bool *existed, + bool require_existed) { struct drm_open_hash *ht = &tfile->ref_hash[ref_type]; struct ttm_ref_object *ref; @@ -345,6 +346,9 @@ int ttm_ref_object_add(struct ttm_object_file *tfile, } rcu_read_unlock(); + if (require_existed) + return -EPERM; + ret = ttm_mem_global_alloc(mem_glob, sizeof(*ref), false, false); if (unlikely(ret != 0)) @@ -449,10 +453,10 @@ void ttm_object_file_release(struct ttm_object_file **p_tfile) ttm_ref_object_release(&ref->kref); } + spin_unlock(&tfile->lock); for (i = 0; i < TTM_REF_NUM; ++i) drm_ht_remove(&tfile->ref_hash[i]); - spin_unlock(&tfile->lock); ttm_object_file_unref(&tfile); } EXPORT_SYMBOL(ttm_object_file_release); @@ -529,9 +533,7 @@ void ttm_object_device_release(struct ttm_object_device **p_tdev) *p_tdev = NULL; - spin_lock(&tdev->object_lock); drm_ht_remove(&tdev->object_hash); - spin_unlock(&tdev->object_lock); kfree(tdev); } @@ -635,7 +637,7 @@ int ttm_prime_fd_to_handle(struct ttm_object_file *tfile, prime = (struct ttm_prime_object *) dma_buf->priv; base = &prime->base; *handle = base->hash.key; - ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL); + ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL, false); dma_buf_put(dma_buf); diff --git a/drivers/gpu/drm/udl/udl_transfer.c b/drivers/gpu/drm/udl/udl_transfer.c index 917dcb978c2c..0c87b1ac6b68 100644 --- a/drivers/gpu/drm/udl/udl_transfer.c +++ b/drivers/gpu/drm/udl/udl_transfer.c @@ -14,6 +14,7 @@ #include <linux/slab.h> #include <linux/fb.h> #include <linux/prefetch.h> +#include <asm/unaligned.h> #include <drm/drmP.h> #include "udl_drv.h" @@ -163,7 +164,7 @@ static void udl_compress_hline16( const u8 *const start = pixel; const uint16_t repeating_pixel_val16 = pixel_val16; - *(uint16_t *)cmd = cpu_to_be16(pixel_val16); + put_unaligned_be16(pixel_val16, cmd); cmd += 2; pixel += bpp; diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 0c06844af445..9fcf05ca492b 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -846,6 +846,17 @@ static void vc4_crtc_destroy_state(struct drm_crtc *crtc, drm_atomic_helper_crtc_destroy_state(crtc, state); } +static void +vc4_crtc_reset(struct drm_crtc *crtc) +{ + if (crtc->state) + __drm_atomic_helper_crtc_destroy_state(crtc->state); + + crtc->state = kzalloc(sizeof(struct vc4_crtc_state), GFP_KERNEL); + if (crtc->state) + crtc->state->crtc = crtc; +} + static const struct drm_crtc_funcs vc4_crtc_funcs = { .set_config = drm_atomic_helper_set_config, .destroy = vc4_crtc_destroy, @@ -853,7 +864,7 @@ static const struct drm_crtc_funcs vc4_crtc_funcs = { .set_property = NULL, .cursor_set = NULL, /* handled by drm_mode_cursor_universal */ .cursor_move = NULL, /* handled by drm_mode_cursor_universal */ - .reset = drm_atomic_helper_crtc_reset, + .reset = vc4_crtc_reset, .atomic_duplicate_state = vc4_crtc_duplicate_state, .atomic_destroy_state = vc4_crtc_destroy_state, .gamma_set = vc4_crtc_gamma_set, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c index 6541dd8b82dc..6b2708b4eafe 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c @@ -538,7 +538,7 @@ int vmw_fence_create(struct vmw_fence_manager *fman, struct vmw_fence_obj **p_fence) { struct vmw_fence_obj *fence; - int ret; + int ret; fence = kzalloc(sizeof(*fence), GFP_KERNEL); if (unlikely(fence == NULL)) @@ -701,6 +701,41 @@ void vmw_fence_fifo_up(struct vmw_fence_manager *fman) } +/** + * vmw_fence_obj_lookup - Look up a user-space fence object + * + * @tfile: A struct ttm_object_file identifying the caller. + * @handle: A handle identifying the fence object. + * @return: A struct vmw_user_fence base ttm object on success or + * an error pointer on failure. + * + * The fence object is looked up and type-checked. The caller needs + * to have opened the fence object first, but since that happens on + * creation and fence objects aren't shareable, that's not an + * issue currently. + */ +static struct ttm_base_object * +vmw_fence_obj_lookup(struct ttm_object_file *tfile, u32 handle) +{ + struct ttm_base_object *base = ttm_base_object_lookup(tfile, handle); + + if (!base) { + pr_err("Invalid fence object handle 0x%08lx.\n", + (unsigned long)handle); + return ERR_PTR(-EINVAL); + } + + if (base->refcount_release != vmw_user_fence_base_release) { + pr_err("Invalid fence object handle 0x%08lx.\n", + (unsigned long)handle); + ttm_base_object_unref(&base); + return ERR_PTR(-EINVAL); + } + + return base; +} + + int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { @@ -726,13 +761,9 @@ int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data, arg->kernel_cookie = jiffies + wait_timeout; } - base = ttm_base_object_lookup(tfile, arg->handle); - if (unlikely(base == NULL)) { - printk(KERN_ERR "Wait invalid fence object handle " - "0x%08lx.\n", - (unsigned long)arg->handle); - return -EINVAL; - } + base = vmw_fence_obj_lookup(tfile, arg->handle); + if (IS_ERR(base)) + return PTR_ERR(base); fence = &(container_of(base, struct vmw_user_fence, base)->fence); @@ -771,13 +802,9 @@ int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data, struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; struct vmw_private *dev_priv = vmw_priv(dev); - base = ttm_base_object_lookup(tfile, arg->handle); - if (unlikely(base == NULL)) { - printk(KERN_ERR "Fence signaled invalid fence object handle " - "0x%08lx.\n", - (unsigned long)arg->handle); - return -EINVAL; - } + base = vmw_fence_obj_lookup(tfile, arg->handle); + if (IS_ERR(base)) + return PTR_ERR(base); fence = &(container_of(base, struct vmw_user_fence, base)->fence); fman = fman_from_fence(fence); @@ -1024,6 +1051,7 @@ int vmw_fence_event_ioctl(struct drm_device *dev, void *data, (struct drm_vmw_fence_event_arg *) data; struct vmw_fence_obj *fence = NULL; struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); + struct ttm_object_file *tfile = vmw_fp->tfile; struct drm_vmw_fence_rep __user *user_fence_rep = (struct drm_vmw_fence_rep __user *)(unsigned long) arg->fence_rep; @@ -1037,24 +1065,18 @@ int vmw_fence_event_ioctl(struct drm_device *dev, void *data, */ if (arg->handle) { struct ttm_base_object *base = - ttm_base_object_lookup_for_ref(dev_priv->tdev, - arg->handle); - - if (unlikely(base == NULL)) { - DRM_ERROR("Fence event invalid fence object handle " - "0x%08lx.\n", - (unsigned long)arg->handle); - return -EINVAL; - } + vmw_fence_obj_lookup(tfile, arg->handle); + + if (IS_ERR(base)) + return PTR_ERR(base); + fence = &(container_of(base, struct vmw_user_fence, base)->fence); (void) vmw_fence_obj_reference(fence); if (user_fence_rep != NULL) { - bool existed; - ret = ttm_ref_object_add(vmw_fp->tfile, base, - TTM_REF_USAGE, &existed); + TTM_REF_USAGE, NULL, false); if (unlikely(ret != 0)) { DRM_ERROR("Failed to reference a fence " "object.\n"); @@ -1097,8 +1119,7 @@ int vmw_fence_event_ioctl(struct drm_device *dev, void *data, return 0; out_no_create: if (user_fence_rep != NULL) - ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile, - handle, TTM_REF_USAGE); + ttm_ref_object_base_unref(tfile, handle, TTM_REF_USAGE); out_no_ref_obj: vmw_fence_obj_unreference(&fence); return ret; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c index b8c6a03c8c54..5ec24fd801cd 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c @@ -114,8 +114,6 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data, param->value = dev_priv->has_dx; break; default: - DRM_ERROR("Illegal vmwgfx get param request: %d\n", - param->param); return -EINVAL; } @@ -186,7 +184,7 @@ int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data, bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS); struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); - if (unlikely(arg->pad64 != 0)) { + if (unlikely(arg->pad64 != 0 || arg->max_size == 0)) { DRM_ERROR("Illegal GET_3D_CAP argument.\n"); return -EINVAL; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 65b3f0369636..bf23153d4f55 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -589,7 +589,7 @@ static int vmw_user_dmabuf_synccpu_grab(struct vmw_user_dma_buffer *user_bo, return ret; ret = ttm_ref_object_add(tfile, &user_bo->prime.base, - TTM_REF_SYNCCPU_WRITE, &existed); + TTM_REF_SYNCCPU_WRITE, &existed, false); if (ret != 0 || existed) ttm_bo_synccpu_write_release(&user_bo->dma.base); @@ -773,7 +773,7 @@ int vmw_user_dmabuf_reference(struct ttm_object_file *tfile, *handle = user_bo->prime.base.hash.key; return ttm_ref_object_add(tfile, &user_bo->prime.base, - TTM_REF_USAGE, NULL); + TTM_REF_USAGE, NULL, false); } /* diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index b445ce9b9757..05fa092c942b 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -713,11 +713,14 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, 128; num_sizes = 0; - for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) + for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { + if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS) + return -EINVAL; num_sizes += req->mip_levels[i]; + } - if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * - DRM_VMW_MAX_MIP_LEVELS) + if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS || + num_sizes == 0) return -EINVAL; size = vmw_user_surface_size + 128 + @@ -891,17 +894,16 @@ vmw_surface_handle_reference(struct vmw_private *dev_priv, uint32_t handle; struct ttm_base_object *base; int ret; + bool require_exist = false; if (handle_type == DRM_VMW_HANDLE_PRIME) { ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle); if (unlikely(ret != 0)) return ret; } else { - if (unlikely(drm_is_render_client(file_priv))) { - DRM_ERROR("Render client refused legacy " - "surface reference.\n"); - return -EACCES; - } + if (unlikely(drm_is_render_client(file_priv))) + require_exist = true; + if (ACCESS_ONCE(vmw_fpriv(file_priv)->locked_master)) { DRM_ERROR("Locked master refused legacy " "surface reference.\n"); @@ -929,17 +931,14 @@ vmw_surface_handle_reference(struct vmw_private *dev_priv, /* * Make sure the surface creator has the same - * authenticating master. + * authenticating master, or is already registered with us. */ if (drm_is_primary_client(file_priv) && - user_srf->master != file_priv->master) { - DRM_ERROR("Trying to reference surface outside of" - " master domain.\n"); - ret = -EACCES; - goto out_bad_resource; - } + user_srf->master != file_priv->master) + require_exist = true; - ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL); + ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL, + require_exist); if (unlikely(ret != 0)) { DRM_ERROR("Could not add a reference to a surface.\n"); goto out_bad_resource; diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 3ceb4a2af381..d162f0dc76e3 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -819,8 +819,7 @@ static int hid_scan_report(struct hid_device *hid) hid->group = HID_GROUP_WACOM; break; case USB_VENDOR_ID_SYNAPTICS: - if (hid->group == HID_GROUP_GENERIC || - hid->group == HID_GROUP_MULTITOUCH_WIN_8) + if (hid->group == HID_GROUP_GENERIC) if ((parser->scan_flags & HID_SCAN_FLAG_VENDOR_SPECIFIC) && (parser->scan_flags & HID_SCAN_FLAG_GD_POINTER)) /* @@ -2096,6 +2095,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UGEE_TABLET_45) }, { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_DRAWIMAGE_G3) }, { HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER, USB_DEVICE_ID_UGTIZER_TABLET_GP0610) }, + { HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_TABLET_EX07S) }, { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) }, { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) }, @@ -2112,6 +2112,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) }, { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) }, { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) }, + { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_THT_2P_ARCADE) }, { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 0e2e7c571d22..b26c030926c1 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -1028,6 +1028,9 @@ #define USB_DEVICE_ID_UGEE_TABLET_45 0x0045 #define USB_DEVICE_ID_YIYNOVA_TABLET 0x004d +#define USB_VENDOR_ID_UGEE 0x28bd +#define USB_DEVICE_ID_UGEE_TABLET_EX07S 0x0071 + #define USB_VENDOR_ID_UNITEC 0x227d #define USB_DEVICE_ID_UNITEC_USB_TOUCH_0709 0x0709 #define USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19 0x0a19 @@ -1082,6 +1085,7 @@ #define USB_VENDOR_ID_XIN_MO 0x16c0 #define USB_DEVICE_ID_XIN_MO_DUAL_ARCADE 0x05e1 +#define USB_DEVICE_ID_THT_2P_ARCADE 0x75e1 #define USB_VENDOR_ID_XIROKU 0x1477 #define USB_DEVICE_ID_XIROKU_SPX 0x1006 diff --git a/drivers/hid/hid-uclogic.c b/drivers/hid/hid-uclogic.c index 1509d7287ff3..e3e6e5c893cc 100644 --- a/drivers/hid/hid-uclogic.c +++ b/drivers/hid/hid-uclogic.c @@ -977,6 +977,7 @@ static int uclogic_probe(struct hid_device *hdev, } break; case USB_DEVICE_ID_UGTIZER_TABLET_GP0610: + case USB_DEVICE_ID_UGEE_TABLET_EX07S: /* If this is the pen interface */ if (intf->cur_altsetting->desc.bInterfaceNumber == 1) { rc = uclogic_tablet_enable(hdev); @@ -1069,6 +1070,7 @@ static const struct hid_device_id uclogic_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UGEE_TABLET_45) }, { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_DRAWIMAGE_G3) }, { HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER, USB_DEVICE_ID_UGTIZER_TABLET_GP0610) }, + { HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_TABLET_EX07S) }, { } }; MODULE_DEVICE_TABLE(hid, uclogic_devices); diff --git a/drivers/hid/hid-xinmo.c b/drivers/hid/hid-xinmo.c index 7df5227a7e61..9ad7731d2e10 100644 --- a/drivers/hid/hid-xinmo.c +++ b/drivers/hid/hid-xinmo.c @@ -46,6 +46,7 @@ static int xinmo_event(struct hid_device *hdev, struct hid_field *field, static const struct hid_device_id xinmo_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) }, + { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_THT_2P_ARCADE) }, { } }; diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index 994bddc55b82..e2666ef84dc1 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -2165,6 +2165,14 @@ static int wacom_parse_and_register(struct wacom *wacom, bool wireless) wacom_update_name(wacom, wireless ? " (WL)" : ""); + /* pen only Bamboo neither support touch nor pad */ + if ((features->type == BAMBOO_PEN) && + ((features->device_type & WACOM_DEVICETYPE_TOUCH) || + (features->device_type & WACOM_DEVICETYPE_PAD))) { + error = -ENODEV; + goto fail; + } + error = wacom_add_shared_data(hdev); if (error) goto fail; @@ -2208,14 +2216,8 @@ static int wacom_parse_and_register(struct wacom *wacom, bool wireless) /* touch only Bamboo doesn't support pen */ if ((features->type == BAMBOO_TOUCH) && (features->device_type & WACOM_DEVICETYPE_PEN)) { - error = -ENODEV; - goto fail_quirks; - } - - /* pen only Bamboo neither support touch nor pad */ - if ((features->type == BAMBOO_PEN) && - ((features->device_type & WACOM_DEVICETYPE_TOUCH) || - (features->device_type & WACOM_DEVICETYPE_PAD))) { + cancel_delayed_work_sync(&wacom->init_work); + _wacom_query_tablet_data(wacom); error = -ENODEV; goto fail_quirks; } diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index 94250c293be2..c68ac65db7ff 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -2006,7 +2006,7 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field return; case HID_DG_TOOLSERIALNUMBER: wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFFULL); - wacom_wac->serial[0] |= value; + wacom_wac->serial[0] |= (__u32)value; return; case WACOM_HID_WD_SENSE: wacom_wac->hid_data.sense_state = value; @@ -2176,6 +2176,16 @@ static void wacom_wac_finger_usage_mapping(struct hid_device *hdev, wacom_wac->hid_data.cc_index = field->index; wacom_wac->hid_data.cc_value_index = usage->usage_index; break; + case HID_DG_CONTACTID: + if ((field->logical_maximum - field->logical_minimum) < touch_max) { + /* + * The HID descriptor for G11 sensors leaves logical + * maximum set to '1' despite it being a multitouch + * device. Override to a sensible number. + */ + field->logical_maximum = 255; + } + break; } } diff --git a/drivers/i2c/muxes/i2c-mux-pca954x.c b/drivers/i2c/muxes/i2c-mux-pca954x.c index dfc1c0e37c40..ad31d21da316 100644 --- a/drivers/i2c/muxes/i2c-mux-pca954x.c +++ b/drivers/i2c/muxes/i2c-mux-pca954x.c @@ -35,7 +35,6 @@ * warranty of any kind, whether express or implied. */ -#include <linux/acpi.h> #include <linux/device.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> @@ -117,6 +116,10 @@ static const struct chip_desc chips[] = { .has_irq = 1, .muxtype = pca954x_isswi, }, + [pca_9546] = { + .nchans = 4, + .muxtype = pca954x_isswi, + }, [pca_9547] = { .nchans = 8, .enable = 0x8, @@ -134,28 +137,13 @@ static const struct i2c_device_id pca954x_id[] = { { "pca9543", pca_9543 }, { "pca9544", pca_9544 }, { "pca9545", pca_9545 }, - { "pca9546", pca_9545 }, + { "pca9546", pca_9546 }, { "pca9547", pca_9547 }, { "pca9548", pca_9548 }, { } }; MODULE_DEVICE_TABLE(i2c, pca954x_id); -#ifdef CONFIG_ACPI -static const struct acpi_device_id pca954x_acpi_ids[] = { - { .id = "PCA9540", .driver_data = pca_9540 }, - { .id = "PCA9542", .driver_data = pca_9542 }, - { .id = "PCA9543", .driver_data = pca_9543 }, - { .id = "PCA9544", .driver_data = pca_9544 }, - { .id = "PCA9545", .driver_data = pca_9545 }, - { .id = "PCA9546", .driver_data = pca_9545 }, - { .id = "PCA9547", .driver_data = pca_9547 }, - { .id = "PCA9548", .driver_data = pca_9548 }, - { } -}; -MODULE_DEVICE_TABLE(acpi, pca954x_acpi_ids); -#endif - #ifdef CONFIG_OF static const struct of_device_id pca954x_of_match[] = { { .compatible = "nxp,pca9540", .data = &chips[pca_9540] }, @@ -393,17 +381,8 @@ static int pca954x_probe(struct i2c_client *client, match = of_match_device(of_match_ptr(pca954x_of_match), &client->dev); if (match) data->chip = of_device_get_match_data(&client->dev); - else if (id) + else data->chip = &chips[id->driver_data]; - else { - const struct acpi_device_id *acpi_id; - - acpi_id = acpi_match_device(ACPI_PTR(pca954x_acpi_ids), - &client->dev); - if (!acpi_id) - return -ENODEV; - data->chip = &chips[acpi_id->driver_data]; - } data->last_chan = 0; /* force the first selection */ @@ -492,7 +471,6 @@ static struct i2c_driver pca954x_driver = { .name = "pca954x", .pm = &pca954x_pm, .of_match_table = of_match_ptr(pca954x_of_match), - .acpi_match_table = ACPI_PTR(pca954x_acpi_ids), }, .probe = pca954x_probe, .remove = pca954x_remove, diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c index ca5759c0c318..43a6cb078193 100644 --- a/drivers/iio/accel/hid-sensor-accel-3d.c +++ b/drivers/iio/accel/hid-sensor-accel-3d.c @@ -370,10 +370,12 @@ static int hid_accel_3d_probe(struct platform_device *pdev) name = "accel_3d"; channel_spec = accel_3d_channels; channel_size = sizeof(accel_3d_channels); + indio_dev->num_channels = ARRAY_SIZE(accel_3d_channels); } else { name = "gravity"; channel_spec = gravity_channels; channel_size = sizeof(gravity_channels); + indio_dev->num_channels = ARRAY_SIZE(gravity_channels); } ret = hid_sensor_parse_common_attributes(hsdev, hsdev->usage, &accel_state->common_attributes); @@ -395,7 +397,6 @@ static int hid_accel_3d_probe(struct platform_device *pdev) goto error_free_dev_mem; } - indio_dev->num_channels = ARRAY_SIZE(accel_3d_channels); indio_dev->dev.parent = &pdev->dev; indio_dev->info = &accel_3d_info; indio_dev->name = name; diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c index d6c372bb433b..c17596f7ed2c 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c @@ -61,7 +61,7 @@ static int cros_ec_sensors_read(struct iio_dev *indio_dev, ret = st->core.read_ec_sensors_data(indio_dev, 1 << idx, &data); if (ret < 0) break; - + ret = IIO_VAL_INT; *val = data; break; case IIO_CHAN_INFO_CALIBBIAS: @@ -76,7 +76,7 @@ static int cros_ec_sensors_read(struct iio_dev *indio_dev, for (i = CROS_EC_SENSOR_X; i < CROS_EC_SENSOR_MAX_AXIS; i++) st->core.calib[i] = st->core.resp->sensor_offset.offset[i]; - + ret = IIO_VAL_INT; *val = st->core.calib[idx]; break; case IIO_CHAN_INFO_SCALE: diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c index 7afdac42ed42..01e02b9926d4 100644 --- a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c +++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c @@ -379,6 +379,8 @@ int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev, { struct hid_sensor_hub_attribute_info timestamp; + s32 value; + int ret; hid_sensor_get_reporting_interval(hsdev, usage_id, st); @@ -417,6 +419,14 @@ int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev, st->sensitivity.index, st->sensitivity.report_id, timestamp.index, timestamp.report_id); + ret = sensor_hub_get_feature(hsdev, + st->power_state.report_id, + st->power_state.index, sizeof(value), &value); + if (ret < 0) + return ret; + if (value < 0) + return -EINVAL; + return 0; } EXPORT_SYMBOL(hid_sensor_parse_common_attributes); diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c index f7fcfa886f72..821919dd245b 100644 --- a/drivers/iio/gyro/bmg160_core.c +++ b/drivers/iio/gyro/bmg160_core.c @@ -27,6 +27,7 @@ #include <linux/iio/trigger_consumer.h> #include <linux/iio/triggered_buffer.h> #include <linux/regmap.h> +#include <linux/delay.h> #include "bmg160.h" #define BMG160_IRQ_NAME "bmg160_event" @@ -52,6 +53,9 @@ #define BMG160_DEF_BW 100 #define BMG160_REG_PMU_BW_RES BIT(7) +#define BMG160_GYRO_REG_RESET 0x14 +#define BMG160_GYRO_RESET_VAL 0xb6 + #define BMG160_REG_INT_MAP_0 0x17 #define BMG160_INT_MAP_0_BIT_ANY BIT(1) @@ -236,6 +240,14 @@ static int bmg160_chip_init(struct bmg160_data *data) int ret; unsigned int val; + /* + * Reset chip to get it in a known good state. A delay of 30ms after + * reset is required according to the datasheet. + */ + regmap_write(data->regmap, BMG160_GYRO_REG_RESET, + BMG160_GYRO_RESET_VAL); + usleep_range(30000, 30700); + ret = regmap_read(data->regmap, BMG160_REG_CHIP_ID, &val); if (ret < 0) { dev_err(dev, "Error reading reg_chip_id\n"); diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index d18ded45bedd..3ff91e02fee3 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -610,10 +610,9 @@ static ssize_t __iio_format_value(char *buf, size_t len, unsigned int type, tmp0 = (int)div_s64_rem(tmp, 1000000000, &tmp1); return snprintf(buf, len, "%d.%09u", tmp0, abs(tmp1)); case IIO_VAL_FRACTIONAL_LOG2: - tmp = (s64)vals[0] * 1000000000LL >> vals[1]; - tmp1 = do_div(tmp, 1000000000LL); - tmp0 = tmp; - return snprintf(buf, len, "%d.%09u", tmp0, tmp1); + tmp = shift_right((s64)vals[0] * 1000000000LL, vals[1]); + tmp0 = (int)div_s64_rem(tmp, 1000000000LL, &tmp1); + return snprintf(buf, len, "%d.%09u", tmp0, abs(tmp1)); case IIO_VAL_INT_MULTIPLE: { int i; diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index 5f2680855552..fd0edca0e656 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -457,6 +457,7 @@ static const struct st_sensor_settings st_press_sensors_settings[] = { .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = true, + .bootime = 2, }, }; diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index 91cbe86b25c8..fcbed35e95a8 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -817,6 +817,7 @@ isert_post_recvm(struct isert_conn *isert_conn, u32 count) rx_wr->sg_list = &rx_desc->rx_sg; rx_wr->num_sge = 1; rx_wr->next = rx_wr + 1; + rx_desc->in_use = false; } rx_wr--; rx_wr->next = NULL; /* mark end of work requests list */ @@ -835,6 +836,15 @@ isert_post_recv(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc) struct ib_recv_wr *rx_wr_failed, rx_wr; int ret; + if (!rx_desc->in_use) { + /* + * if the descriptor is not in-use we already reposted it + * for recv, so just silently return + */ + return 0; + } + + rx_desc->in_use = false; rx_wr.wr_cqe = &rx_desc->rx_cqe; rx_wr.sg_list = &rx_desc->rx_sg; rx_wr.num_sge = 1; @@ -1397,6 +1407,8 @@ isert_recv_done(struct ib_cq *cq, struct ib_wc *wc) return; } + rx_desc->in_use = true; + ib_dma_sync_single_for_cpu(ib_dev, rx_desc->dma_addr, ISER_RX_PAYLOAD_SIZE, DMA_FROM_DEVICE); @@ -1659,10 +1671,23 @@ isert_rdma_write_done(struct ib_cq *cq, struct ib_wc *wc) ret = isert_check_pi_status(cmd, isert_cmd->rw.sig->sig_mr); isert_rdma_rw_ctx_destroy(isert_cmd, isert_conn); - if (ret) - transport_send_check_condition_and_sense(cmd, cmd->pi_err, 0); - else - isert_put_response(isert_conn->conn, isert_cmd->iscsi_cmd); + if (ret) { + /* + * transport_generic_request_failure() expects to have + * plus two references to handle queue-full, so re-add + * one here as target-core will have already dropped + * it after the first isert_put_datain() callback. + */ + kref_get(&cmd->cmd_kref); + transport_generic_request_failure(cmd, cmd->pi_err); + } else { + /* + * XXX: isert_put_response() failure is not retried. + */ + ret = isert_put_response(isert_conn->conn, isert_cmd->iscsi_cmd); + if (ret) + pr_warn_ratelimited("isert_put_response() ret: %d\n", ret); + } } static void @@ -1699,13 +1724,15 @@ isert_rdma_read_done(struct ib_cq *cq, struct ib_wc *wc) cmd->i_state = ISTATE_RECEIVED_LAST_DATAOUT; spin_unlock_bh(&cmd->istate_lock); - if (ret) { - target_put_sess_cmd(se_cmd); - transport_send_check_condition_and_sense(se_cmd, - se_cmd->pi_err, 0); - } else { + /* + * transport_generic_request_failure() will drop the extra + * se_cmd->cmd_kref reference after T10-PI error, and handle + * any non-zero ->queue_status() callback error retries. + */ + if (ret) + transport_generic_request_failure(se_cmd, se_cmd->pi_err); + else target_execute_cmd(se_cmd); - } } static void @@ -2171,26 +2198,28 @@ isert_put_datain(struct iscsi_conn *conn, struct iscsi_cmd *cmd) chain_wr = &isert_cmd->tx_desc.send_wr; } - isert_rdma_rw_ctx_post(isert_cmd, isert_conn, cqe, chain_wr); - isert_dbg("Cmd: %p posted RDMA_WRITE for iSER Data READ\n", isert_cmd); - return 1; + rc = isert_rdma_rw_ctx_post(isert_cmd, isert_conn, cqe, chain_wr); + isert_dbg("Cmd: %p posted RDMA_WRITE for iSER Data READ rc: %d\n", + isert_cmd, rc); + return rc; } static int isert_get_dataout(struct iscsi_conn *conn, struct iscsi_cmd *cmd, bool recovery) { struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); + int ret; isert_dbg("Cmd: %p RDMA_READ data_length: %u write_data_done: %u\n", isert_cmd, cmd->se_cmd.data_length, cmd->write_data_done); isert_cmd->tx_desc.tx_cqe.done = isert_rdma_read_done; - isert_rdma_rw_ctx_post(isert_cmd, conn->context, - &isert_cmd->tx_desc.tx_cqe, NULL); + ret = isert_rdma_rw_ctx_post(isert_cmd, conn->context, + &isert_cmd->tx_desc.tx_cqe, NULL); - isert_dbg("Cmd: %p posted RDMA_READ memory for ISER Data WRITE\n", - isert_cmd); - return 0; + isert_dbg("Cmd: %p posted RDMA_READ memory for ISER Data WRITE rc: %d\n", + isert_cmd, ret); + return ret; } static int diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h index c02ada57d7f5..87d994de8c91 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.h +++ b/drivers/infiniband/ulp/isert/ib_isert.h @@ -60,7 +60,7 @@ #define ISER_RX_PAD_SIZE (ISCSI_DEF_MAX_RECV_SEG_LEN + 4096 - \ (ISER_RX_PAYLOAD_SIZE + sizeof(u64) + sizeof(struct ib_sge) + \ - sizeof(struct ib_cqe))) + sizeof(struct ib_cqe) + sizeof(bool))) #define ISCSI_ISER_SG_TABLESIZE 256 @@ -85,6 +85,7 @@ struct iser_rx_desc { u64 dma_addr; struct ib_sge rx_sg; struct ib_cqe rx_cqe; + bool in_use; char pad[ISER_RX_PAD_SIZE]; } __packed; diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index 155fcb3b6230..153b1ee13e03 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -202,6 +202,7 @@ static const struct xpad_device { { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, { 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 }, { 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 }, + { 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE }, { 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 }, { 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 }, { 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 }, @@ -326,6 +327,7 @@ static struct usb_device_id xpad_table[] = { XPAD_XBOX360_VENDOR(0x1430), /* RedOctane X-Box 360 controllers */ XPAD_XBOX360_VENDOR(0x146b), /* BigBen Interactive Controllers */ XPAD_XBOX360_VENDOR(0x1532), /* Razer Sabertooth */ + XPAD_XBOXONE_VENDOR(0x1532), /* Razer Wildcat */ XPAD_XBOX360_VENDOR(0x15e4), /* Numark X-Box 360 controllers */ XPAD_XBOX360_VENDOR(0x162e), /* Joytech X-Box 360 controllers */ XPAD_XBOX360_VENDOR(0x1689), /* Razer Onza */ diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index efc8ec342351..e73d968023f7 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1118,6 +1118,7 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse, * Asus UX32VD 0x361f02 00, 15, 0e clickpad * Avatar AVIU-145A2 0x361f00 ? clickpad * Fujitsu LIFEBOOK E544 0x470f00 d0, 12, 09 2 hw buttons + * Fujitsu LIFEBOOK E547 0x470f00 50, 12, 09 2 hw buttons * Fujitsu LIFEBOOK E554 0x570f01 40, 14, 0c 2 hw buttons * Fujitsu T725 0x470f01 05, 12, 09 2 hw buttons * Fujitsu H730 0x570f00 c0, 14, 0c 3 hw buttons (**) @@ -1524,6 +1525,13 @@ static const struct dmi_system_id elantech_dmi_force_crc_enabled[] = { }, }, { + /* Fujitsu LIFEBOOK E547 does not work with crc_enabled == 0 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E547"), + }, + }, + { /* Fujitsu LIFEBOOK E554 does not work with crc_enabled == 0 */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 125528f39e92..8162121bb1bc 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -262,6 +262,7 @@ config IRQ_MXS config MVEBU_ODMI bool + select GENERIC_MSI_IRQ_DOMAIN config MVEBU_PIC bool diff --git a/drivers/irqchip/irq-imx-gpcv2.c b/drivers/irqchip/irq-imx-gpcv2.c index 15af9a9753e5..2d203b422129 100644 --- a/drivers/irqchip/irq-imx-gpcv2.c +++ b/drivers/irqchip/irq-imx-gpcv2.c @@ -230,6 +230,8 @@ static int __init imx_gpcv2_irqchip_init(struct device_node *node, return -ENOMEM; } + raw_spin_lock_init(&cd->rlock); + cd->gpc_base = of_iomap(node, 0); if (!cd->gpc_base) { pr_err("fsl-gpcv2: unable to map gpc registers\n"); diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c index 11d12bccc4e7..cd20df12d63d 100644 --- a/drivers/irqchip/irq-mips-gic.c +++ b/drivers/irqchip/irq-mips-gic.c @@ -991,8 +991,12 @@ static void __init gic_map_single_int(struct device_node *node, static void __init gic_map_interrupts(struct device_node *node) { + gic_map_single_int(node, GIC_LOCAL_INT_WD); + gic_map_single_int(node, GIC_LOCAL_INT_COMPARE); gic_map_single_int(node, GIC_LOCAL_INT_TIMER); gic_map_single_int(node, GIC_LOCAL_INT_PERFCTR); + gic_map_single_int(node, GIC_LOCAL_INT_SWINT0); + gic_map_single_int(node, GIC_LOCAL_INT_SWINT1); gic_map_single_int(node, GIC_LOCAL_INT_FDC); } diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c index 1dfd1085a04f..9ca691d6c13b 100644 --- a/drivers/isdn/capi/kcapi.c +++ b/drivers/isdn/capi/kcapi.c @@ -1032,6 +1032,7 @@ static int old_capi_manufacturer(unsigned int cmd, void __user *data) sizeof(avmb1_carddef)))) return -EFAULT; cdef.cardtype = AVM_CARDTYPE_B1; + cdef.cardnr = 0; } else { if ((retval = copy_from_user(&cdef, data, sizeof(avmb1_extcarddef)))) diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c index e4c2c1a1e993..6735c8d6a445 100644 --- a/drivers/md/dm-cache-metadata.c +++ b/drivers/md/dm-cache-metadata.c @@ -932,7 +932,7 @@ static int blocks_are_clean_separate_dirty(struct dm_cache_metadata *cmd, *result = true; r = dm_bitset_cursor_begin(&cmd->dirty_info, cmd->dirty_root, - from_cblock(begin), &cmd->dirty_cursor); + from_cblock(cmd->cache_blocks), &cmd->dirty_cursor); if (r) { DMERR("%s: dm_bitset_cursor_begin for dirty failed", __func__); return r; @@ -959,14 +959,16 @@ static int blocks_are_clean_separate_dirty(struct dm_cache_metadata *cmd, return 0; } + begin = to_cblock(from_cblock(begin) + 1); + if (begin == end) + break; + r = dm_bitset_cursor_next(&cmd->dirty_cursor); if (r) { DMERR("%s: dm_bitset_cursor_next for dirty failed", __func__); dm_bitset_cursor_end(&cmd->dirty_cursor); return r; } - - begin = to_cblock(from_cblock(begin) + 1); } dm_bitset_cursor_end(&cmd->dirty_cursor); diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 468f1380de1d..2dae3e5b851c 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3726,7 +3726,7 @@ static int raid_preresume(struct dm_target *ti) return r; /* Resize bitmap to adjust to changed region size (aka MD bitmap chunksize) */ - if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) && + if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) && mddev->bitmap && mddev->bitmap_info.chunksize != to_bytes(rs->requested_bitmap_chunk_sectors)) { r = bitmap_resize(mddev->bitmap, mddev->dev_sectors, to_bytes(rs->requested_bitmap_chunk_sectors), 0); diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c index 0f0eb8a3d922..78f36012eaca 100644 --- a/drivers/md/dm-verity-fec.c +++ b/drivers/md/dm-verity-fec.c @@ -146,8 +146,6 @@ static int fec_decode_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio, block = fec_buffer_rs_block(v, fio, n, i); res = fec_decode_rs8(v, fio, block, &par[offset], neras); if (res < 0) { - dm_bufio_release(buf); - r = res; goto error; } @@ -172,6 +170,8 @@ static int fec_decode_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio, done: r = corrected; error: + dm_bufio_release(buf); + if (r < 0 && neras) DMERR_LIMIT("%s: FEC %llu: failed to correct: %d", v->data_dev->name, (unsigned long long)rsb, r); @@ -269,7 +269,7 @@ static int fec_read_bufs(struct dm_verity *v, struct dm_verity_io *io, &is_zero) == 0) { /* skip known zero blocks entirely */ if (is_zero) - continue; + goto done; /* * skip if we have already found the theoretical @@ -439,6 +439,13 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io, if (!verity_fec_is_enabled(v)) return -EOPNOTSUPP; + if (fio->level >= DM_VERITY_FEC_MAX_RECURSION) { + DMWARN_LIMIT("%s: FEC: recursion too deep", v->data_dev->name); + return -EIO; + } + + fio->level++; + if (type == DM_VERITY_BLOCK_TYPE_METADATA) block += v->data_blocks; @@ -470,7 +477,7 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io, if (r < 0) { r = fec_decode_rsb(v, io, fio, rsb, offset, true); if (r < 0) - return r; + goto done; } if (dest) @@ -480,6 +487,8 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io, r = verity_for_bv_block(v, io, iter, fec_bv_copy); } +done: + fio->level--; return r; } @@ -520,6 +529,7 @@ void verity_fec_init_io(struct dm_verity_io *io) memset(fio->bufs, 0, sizeof(fio->bufs)); fio->nbufs = 0; fio->output = NULL; + fio->level = 0; } /* diff --git a/drivers/md/dm-verity-fec.h b/drivers/md/dm-verity-fec.h index 7fa0298b995e..bb31ce87a933 100644 --- a/drivers/md/dm-verity-fec.h +++ b/drivers/md/dm-verity-fec.h @@ -27,6 +27,9 @@ #define DM_VERITY_FEC_BUF_MAX \ (1 << (PAGE_SHIFT - DM_VERITY_FEC_BUF_RS_BITS)) +/* maximum recursion level for verity_fec_decode */ +#define DM_VERITY_FEC_MAX_RECURSION 4 + #define DM_VERITY_OPT_FEC_DEV "use_fec_from_device" #define DM_VERITY_OPT_FEC_BLOCKS "fec_blocks" #define DM_VERITY_OPT_FEC_START "fec_start" @@ -58,6 +61,7 @@ struct dm_verity_fec_io { unsigned nbufs; /* number of buffers allocated */ u8 *output; /* buffer for corrected output */ size_t output_pos; + unsigned level; /* recursion level */ }; #ifdef CONFIG_DM_VERITY_FEC diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c index e992a7f8a16f..2b32b88949ba 100644 --- a/drivers/mmc/core/sdio_bus.c +++ b/drivers/mmc/core/sdio_bus.c @@ -267,7 +267,7 @@ static void sdio_release_func(struct device *dev) sdio_free_func_cis(func); kfree(func->info); - + kfree(func->tmpbuf); kfree(func); } @@ -282,6 +282,16 @@ struct sdio_func *sdio_alloc_func(struct mmc_card *card) if (!func) return ERR_PTR(-ENOMEM); + /* + * allocate buffer separately to make sure it's properly aligned for + * DMA usage (incl. 64 bit DMA) + */ + func->tmpbuf = kmalloc(4, GFP_KERNEL); + if (!func->tmpbuf) { + kfree(func); + return ERR_PTR(-ENOMEM); + } + func->card = card; device_initialize(&func->dev); diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index a9ac0b457313..8718432751c5 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -22,6 +22,7 @@ #include <linux/ioport.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/stat.h> @@ -1621,10 +1622,16 @@ static void dw_mci_init_card(struct mmc_host *mmc, struct mmc_card *card) if (card->type == MMC_TYPE_SDIO || card->type == MMC_TYPE_SD_COMBO) { - set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags); + if (!test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags)) { + pm_runtime_get_noresume(mmc->parent); + set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags); + } clk_en_a = clk_en_a_old & ~clken_low_pwr; } else { - clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags); + if (test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags)) { + pm_runtime_put_noidle(mmc->parent); + clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags); + } clk_en_a = clk_en_a_old | clken_low_pwr; } diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 7123ef96ed18..445fc47dc3e7 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -830,6 +830,7 @@ static int esdhc_change_pinstate(struct sdhci_host *host, switch (uhs) { case MMC_TIMING_UHS_SDR50: + case MMC_TIMING_UHS_DDR50: pinctrl = imx_data->pins_100mhz; break; case MMC_TIMING_UHS_SDR104: diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c index 7fd964256faa..d5430ed02a67 100644 --- a/drivers/mmc/host/sdhci-of-at91.c +++ b/drivers/mmc/host/sdhci-of-at91.c @@ -29,6 +29,8 @@ #include "sdhci-pltfm.h" +#define SDMMC_MC1R 0x204 +#define SDMMC_MC1R_DDR BIT(3) #define SDMMC_CACR 0x230 #define SDMMC_CACR_CAPWREN BIT(0) #define SDMMC_CACR_KEY (0x46 << 8) @@ -103,11 +105,18 @@ static void sdhci_at91_set_power(struct sdhci_host *host, unsigned char mode, sdhci_set_power_noreg(host, mode, vdd); } +void sdhci_at91_set_uhs_signaling(struct sdhci_host *host, unsigned int timing) +{ + if (timing == MMC_TIMING_MMC_DDR52) + sdhci_writeb(host, SDMMC_MC1R_DDR, SDMMC_MC1R); + sdhci_set_uhs_signaling(host, timing); +} + static const struct sdhci_ops sdhci_at91_sama5d2_ops = { .set_clock = sdhci_at91_set_clock, .set_bus_width = sdhci_set_bus_width, .reset = sdhci_reset, - .set_uhs_signaling = sdhci_set_uhs_signaling, + .set_uhs_signaling = sdhci_at91_set_uhs_signaling, .set_power = sdhci_at91_set_power, }; diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 9c1a099afbbe..63bc33a54d0d 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1830,6 +1830,9 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable) struct sdhci_host *host = mmc_priv(mmc); unsigned long flags; + if (enable) + pm_runtime_get_noresume(host->mmc->parent); + spin_lock_irqsave(&host->lock, flags); if (enable) host->flags |= SDHCI_SDIO_IRQ_ENABLED; @@ -1838,6 +1841,9 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable) sdhci_enable_sdio_irq_nolock(host, enable); spin_unlock_irqrestore(&host->lock, flags); + + if (!enable) + pm_runtime_put_noidle(host->mmc->parent); } static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc, diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c index 0134ba32a057..39712560b4c1 100644 --- a/drivers/mtd/ubi/upd.c +++ b/drivers/mtd/ubi/upd.c @@ -148,11 +148,11 @@ int ubi_start_update(struct ubi_device *ubi, struct ubi_volume *vol, return err; } - if (bytes == 0) { - err = ubi_wl_flush(ubi, UBI_ALL, UBI_ALL); - if (err) - return err; + err = ubi_wl_flush(ubi, UBI_ALL, UBI_ALL); + if (err) + return err; + if (bytes == 0) { err = clear_update_marker(ubi, vol, 0); if (err) return err; diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c index 138f5ae75c0b..4d1fe8d95042 100644 --- a/drivers/net/can/ifi_canfd/ifi_canfd.c +++ b/drivers/net/can/ifi_canfd/ifi_canfd.c @@ -557,7 +557,7 @@ static int ifi_canfd_poll(struct napi_struct *napi, int quota) int work_done = 0; u32 stcmd = readl(priv->base + IFI_CANFD_STCMD); - u32 rxstcmd = readl(priv->base + IFI_CANFD_STCMD); + u32 rxstcmd = readl(priv->base + IFI_CANFD_RXSTCMD); u32 errctr = readl(priv->base + IFI_CANFD_ERROR_CTR); /* Handle bus state changes */ diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c index caed4e6960f8..11662f479e76 100644 --- a/drivers/net/can/rcar/rcar_can.c +++ b/drivers/net/can/rcar/rcar_can.c @@ -826,8 +826,7 @@ static int rcar_can_probe(struct platform_device *pdev) devm_can_led_init(ndev); - dev_info(&pdev->dev, "device registered (regs @ %p, IRQ%d)\n", - priv->regs, ndev->irq); + dev_info(&pdev->dev, "device registered (IRQ%d)\n", ndev->irq); return 0; fail_candev: diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_main.c b/drivers/net/ethernet/aquantia/atlantic/aq_main.c index d05fbfdce5e5..5d6c40d86775 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_main.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_main.c @@ -100,11 +100,6 @@ static int aq_ndev_change_mtu(struct net_device *ndev, int new_mtu) goto err_exit; ndev->mtu = new_mtu; - if (netif_running(ndev)) { - aq_ndev_close(ndev); - aq_ndev_open(ndev); - } - err_exit: return err; } diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c index ee78444bfb88..cdb02991f249 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c @@ -487,6 +487,9 @@ static unsigned int aq_nic_map_skb(struct aq_nic_s *self, dx_buff->mss = skb_shinfo(skb)->gso_size; dx_buff->is_txc = 1U; + dx_buff->is_ipv6 = + (ip_hdr(skb)->version == 6) ? 1U : 0U; + dx = aq_ring_next_dx(ring, dx); dx_buff = &ring->buff_ring[dx]; ++ret; @@ -510,10 +513,22 @@ static unsigned int aq_nic_map_skb(struct aq_nic_s *self, if (skb->ip_summed == CHECKSUM_PARTIAL) { dx_buff->is_ip_cso = (htons(ETH_P_IP) == skb->protocol) ? 1U : 0U; - dx_buff->is_tcp_cso = - (ip_hdr(skb)->protocol == IPPROTO_TCP) ? 1U : 0U; - dx_buff->is_udp_cso = - (ip_hdr(skb)->protocol == IPPROTO_UDP) ? 1U : 0U; + + if (ip_hdr(skb)->version == 4) { + dx_buff->is_tcp_cso = + (ip_hdr(skb)->protocol == IPPROTO_TCP) ? + 1U : 0U; + dx_buff->is_udp_cso = + (ip_hdr(skb)->protocol == IPPROTO_UDP) ? + 1U : 0U; + } else if (ip_hdr(skb)->version == 6) { + dx_buff->is_tcp_cso = + (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP) ? + 1U : 0U; + dx_buff->is_udp_cso = + (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP) ? + 1U : 0U; + } } for (; nr_frags--; ++frag_count) { diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c index 0358e6072d45..3a8a4aa13687 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c @@ -101,6 +101,7 @@ int aq_ring_init(struct aq_ring_s *self) self->hw_head = 0; self->sw_head = 0; self->sw_tail = 0; + spin_lock_init(&self->header.lock); return 0; } diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.h b/drivers/net/ethernet/aquantia/atlantic/aq_ring.h index 257254645068..eecd6d1c4d73 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.h +++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.h @@ -58,7 +58,8 @@ struct __packed aq_ring_buff_s { u8 len_l2; u8 len_l3; u8 len_l4; - u8 rsvd2; + u8 is_ipv6:1; + u8 rsvd2:7; u32 len_pkt; }; }; diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c index a2b746a2dd50..4ee15ff06a44 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c @@ -433,6 +433,9 @@ static int hw_atl_a0_hw_ring_tx_xmit(struct aq_hw_s *self, buff->len_l3 + buff->len_l2); is_gso = true; + + if (buff->is_ipv6) + txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_IPV6; } else { buff_pa_len = buff->len; @@ -458,6 +461,7 @@ static int hw_atl_a0_hw_ring_tx_xmit(struct aq_hw_s *self, if (unlikely(buff->is_eop)) { txd->ctl |= HW_ATL_A0_TXD_CTL_EOP; txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_WB; + is_gso = false; } } diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c index cab2931dab9a..42150708191d 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c @@ -471,6 +471,9 @@ static int hw_atl_b0_hw_ring_tx_xmit(struct aq_hw_s *self, buff->len_l3 + buff->len_l2); is_gso = true; + + if (buff->is_ipv6) + txd->ctl |= HW_ATL_B0_TXD_CTL_CMD_IPV6; } else { buff_pa_len = buff->len; @@ -496,6 +499,7 @@ static int hw_atl_b0_hw_ring_tx_xmit(struct aq_hw_s *self, if (unlikely(buff->is_eop)) { txd->ctl |= HW_ATL_B0_TXD_CTL_EOP; txd->ctl |= HW_ATL_B0_TXD_CTL_CMD_WB; + is_gso = false; } } diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h index 0a23034bbe3f..352beff796ae 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h @@ -2277,7 +2277,7 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id, GENERAL_ATTEN_OFFSET(LATCHED_ATTN_RBCP) | \ GENERAL_ATTEN_OFFSET(LATCHED_ATTN_RSVD_GRC)) -#define HW_INTERRUT_ASSERT_SET_0 \ +#define HW_INTERRUPT_ASSERT_SET_0 \ (AEU_INPUTS_ATTN_BITS_TSDM_HW_INTERRUPT | \ AEU_INPUTS_ATTN_BITS_TCM_HW_INTERRUPT | \ AEU_INPUTS_ATTN_BITS_TSEMI_HW_INTERRUPT | \ @@ -2290,7 +2290,7 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id, AEU_INPUTS_ATTN_BITS_TSEMI_PARITY_ERROR |\ AEU_INPUTS_ATTN_BITS_TCM_PARITY_ERROR |\ AEU_INPUTS_ATTN_BITS_PBCLIENT_PARITY_ERROR) -#define HW_INTERRUT_ASSERT_SET_1 \ +#define HW_INTERRUPT_ASSERT_SET_1 \ (AEU_INPUTS_ATTN_BITS_QM_HW_INTERRUPT | \ AEU_INPUTS_ATTN_BITS_TIMERS_HW_INTERRUPT | \ AEU_INPUTS_ATTN_BITS_XSDM_HW_INTERRUPT | \ @@ -2318,7 +2318,7 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id, AEU_INPUTS_ATTN_BITS_UPB_PARITY_ERROR | \ AEU_INPUTS_ATTN_BITS_CSDM_PARITY_ERROR |\ AEU_INPUTS_ATTN_BITS_CCM_PARITY_ERROR) -#define HW_INTERRUT_ASSERT_SET_2 \ +#define HW_INTERRUPT_ASSERT_SET_2 \ (AEU_INPUTS_ATTN_BITS_CSEMI_HW_INTERRUPT | \ AEU_INPUTS_ATTN_BITS_CDU_HW_INTERRUPT | \ AEU_INPUTS_ATTN_BITS_DMAE_HW_INTERRUPT | \ diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index ac76fc251d26..a851f95c307a 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -4166,14 +4166,14 @@ static void bnx2x_attn_int_deasserted0(struct bnx2x *bp, u32 attn) bnx2x_release_phy_lock(bp); } - if (attn & HW_INTERRUT_ASSERT_SET_0) { + if (attn & HW_INTERRUPT_ASSERT_SET_0) { val = REG_RD(bp, reg_offset); - val &= ~(attn & HW_INTERRUT_ASSERT_SET_0); + val &= ~(attn & HW_INTERRUPT_ASSERT_SET_0); REG_WR(bp, reg_offset, val); BNX2X_ERR("FATAL HW block attention set0 0x%x\n", - (u32)(attn & HW_INTERRUT_ASSERT_SET_0)); + (u32)(attn & HW_INTERRUPT_ASSERT_SET_0)); bnx2x_panic(); } } @@ -4191,7 +4191,7 @@ static void bnx2x_attn_int_deasserted1(struct bnx2x *bp, u32 attn) BNX2X_ERR("FATAL error from DORQ\n"); } - if (attn & HW_INTERRUT_ASSERT_SET_1) { + if (attn & HW_INTERRUPT_ASSERT_SET_1) { int port = BP_PORT(bp); int reg_offset; @@ -4200,11 +4200,11 @@ static void bnx2x_attn_int_deasserted1(struct bnx2x *bp, u32 attn) MISC_REG_AEU_ENABLE1_FUNC_0_OUT_1); val = REG_RD(bp, reg_offset); - val &= ~(attn & HW_INTERRUT_ASSERT_SET_1); + val &= ~(attn & HW_INTERRUPT_ASSERT_SET_1); REG_WR(bp, reg_offset, val); BNX2X_ERR("FATAL HW block attention set1 0x%x\n", - (u32)(attn & HW_INTERRUT_ASSERT_SET_1)); + (u32)(attn & HW_INTERRUPT_ASSERT_SET_1)); bnx2x_panic(); } } @@ -4235,7 +4235,7 @@ static void bnx2x_attn_int_deasserted2(struct bnx2x *bp, u32 attn) } } - if (attn & HW_INTERRUT_ASSERT_SET_2) { + if (attn & HW_INTERRUPT_ASSERT_SET_2) { int port = BP_PORT(bp); int reg_offset; @@ -4244,11 +4244,11 @@ static void bnx2x_attn_int_deasserted2(struct bnx2x *bp, u32 attn) MISC_REG_AEU_ENABLE1_FUNC_0_OUT_2); val = REG_RD(bp, reg_offset); - val &= ~(attn & HW_INTERRUT_ASSERT_SET_2); + val &= ~(attn & HW_INTERRUPT_ASSERT_SET_2); REG_WR(bp, reg_offset, val); BNX2X_ERR("FATAL HW block attention set2 0x%x\n", - (u32)(attn & HW_INTERRUT_ASSERT_SET_2)); + (u32)(attn & HW_INTERRUPT_ASSERT_SET_2)); bnx2x_panic(); } } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 32de4589d16a..1f1e54ba0ecb 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1983,20 +1983,25 @@ static void bnxt_free_rx_skbs(struct bnxt *bp) for (j = 0; j < max_idx; j++) { struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[j]; + dma_addr_t mapping = rx_buf->mapping; void *data = rx_buf->data; if (!data) continue; - dma_unmap_single(&pdev->dev, rx_buf->mapping, - bp->rx_buf_use_size, bp->rx_dir); - rx_buf->data = NULL; - if (BNXT_RX_PAGE_MODE(bp)) + if (BNXT_RX_PAGE_MODE(bp)) { + mapping -= bp->rx_dma_offset; + dma_unmap_page(&pdev->dev, mapping, + PAGE_SIZE, bp->rx_dir); __free_page(data); - else + } else { + dma_unmap_single(&pdev->dev, mapping, + bp->rx_buf_use_size, + bp->rx_dir); kfree(data); + } } for (j = 0; j < max_agg_idx; j++) { @@ -2455,6 +2460,18 @@ static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr) return 0; } +static void bnxt_init_cp_rings(struct bnxt *bp) +{ + int i; + + for (i = 0; i < bp->cp_nr_rings; i++) { + struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring; + struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; + + ring->fw_ring_id = INVALID_HW_RING_ID; + } +} + static int bnxt_init_rx_rings(struct bnxt *bp) { int i, rc = 0; @@ -4732,7 +4749,7 @@ static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa) rc = bnxt_hwrm_vnic_set_tpa(bp, i, tpa_flags); if (rc) { netdev_err(bp->dev, "hwrm vnic set tpa failure rc for vnic %d: %x\n", - rc, i); + i, rc); return rc; } } @@ -5006,6 +5023,7 @@ static int bnxt_shutdown_nic(struct bnxt *bp, bool irq_re_init) static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init) { + bnxt_init_cp_rings(bp); bnxt_init_rx_rings(bp); bnxt_init_tx_rings(bp); bnxt_init_ring_grps(bp, irq_re_init); diff --git a/drivers/net/ethernet/brocade/bna/bfa_ioc.c b/drivers/net/ethernet/brocade/bna/bfa_ioc.c index 9e59663a6ead..0f6811860ad5 100644 --- a/drivers/net/ethernet/brocade/bna/bfa_ioc.c +++ b/drivers/net/ethernet/brocade/bna/bfa_ioc.c @@ -1930,13 +1930,13 @@ static void bfa_ioc_send_enable(struct bfa_ioc *ioc) { struct bfi_ioc_ctrl_req enable_req; - struct timeval tv; bfi_h2i_set(enable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_ENABLE_REQ, bfa_ioc_portid(ioc)); enable_req.clscode = htons(ioc->clscode); - do_gettimeofday(&tv); - enable_req.tv_sec = ntohl(tv.tv_sec); + enable_req.rsvd = htons(0); + /* overflow in 2106 */ + enable_req.tv_sec = ntohl(ktime_get_real_seconds()); bfa_ioc_mbox_send(ioc, &enable_req, sizeof(struct bfi_ioc_ctrl_req)); } @@ -1947,6 +1947,10 @@ bfa_ioc_send_disable(struct bfa_ioc *ioc) bfi_h2i_set(disable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_DISABLE_REQ, bfa_ioc_portid(ioc)); + disable_req.clscode = htons(ioc->clscode); + disable_req.rsvd = htons(0); + /* overflow in 2106 */ + disable_req.tv_sec = ntohl(ktime_get_real_seconds()); bfa_ioc_mbox_send(ioc, &disable_req, sizeof(struct bfi_ioc_ctrl_req)); } diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index 64a1095e4d14..a0ca68ce3fbb 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -134,6 +134,7 @@ static void set_max_bgx_per_node(struct pci_dev *pdev) pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &sdevid); switch (sdevid) { case PCI_SUBSYS_DEVID_81XX_BGX: + case PCI_SUBSYS_DEVID_81XX_RGX: max_bgx_per_node = MAX_BGX_PER_CN81XX; break; case PCI_SUBSYS_DEVID_83XX_BGX: diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h index c5080f2cead5..6b7fe6fdd13b 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h @@ -16,6 +16,7 @@ /* Subsystem device IDs */ #define PCI_SUBSYS_DEVID_88XX_BGX 0xA126 #define PCI_SUBSYS_DEVID_81XX_BGX 0xA226 +#define PCI_SUBSYS_DEVID_81XX_RGX 0xA254 #define PCI_SUBSYS_DEVID_83XX_BGX 0xA326 #define MAX_BGX_THUNDER 8 /* Max 2 nodes, 4 per node */ diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c index 30e855004c57..02dd5246dfae 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.c +++ b/drivers/net/ethernet/emulex/benet/be_cmds.c @@ -4939,8 +4939,9 @@ static int __be_cmd_set_logical_link_config(struct be_adapter *adapter, int link_state, int version, u8 domain) { - struct be_mcc_wrb *wrb; struct be_cmd_req_set_ll_link *req; + struct be_mcc_wrb *wrb; + u32 link_config = 0; int status; mutex_lock(&adapter->mcc_lock); @@ -4962,10 +4963,12 @@ __be_cmd_set_logical_link_config(struct be_adapter *adapter, if (link_state == IFLA_VF_LINK_STATE_ENABLE || link_state == IFLA_VF_LINK_STATE_AUTO) - req->link_config |= PLINK_ENABLE; + link_config |= PLINK_ENABLE; if (link_state == IFLA_VF_LINK_STATE_AUTO) - req->link_config |= PLINK_TRACK; + link_config |= PLINK_TRACK; + + req->link_config = cpu_to_le32(link_config); status = be_mcc_notify_wait(adapter); err: diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c index 992ebe973d25..f819843e2bae 100644 --- a/drivers/net/ethernet/ezchip/nps_enet.c +++ b/drivers/net/ethernet/ezchip/nps_enet.c @@ -189,11 +189,9 @@ static int nps_enet_poll(struct napi_struct *napi, int budget) nps_enet_tx_handler(ndev); work_done = nps_enet_rx_handler(ndev); - if (work_done < budget) { + if ((work_done < budget) && napi_complete_done(napi, work_done)) { u32 buf_int_enable_value = 0; - napi_complete_done(napi, work_done); - /* set tx_done and rx_rdy bits */ buf_int_enable_value |= NPS_ENET_ENABLE << RX_RDY_SHIFT; buf_int_enable_value |= NPS_ENET_ENABLE << TX_DONE_SHIFT; diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c index 928b0df2b8e0..ade6b3e4ed13 100644 --- a/drivers/net/ethernet/faraday/ftgmac100.c +++ b/drivers/net/ethernet/faraday/ftgmac100.c @@ -28,8 +28,10 @@ #include <linux/io.h> #include <linux/module.h> #include <linux/netdevice.h> +#include <linux/of.h> #include <linux/phy.h> #include <linux/platform_device.h> +#include <linux/property.h> #include <net/ip.h> #include <net/ncsi.h> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c index 3239d27143b9..bdd8cdd732fb 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c @@ -82,9 +82,12 @@ void hns_mac_get_link_status(struct hns_mac_cb *mac_cb, u32 *link_status) else *link_status = 0; - ret = mac_cb->dsaf_dev->misc_op->get_sfp_prsnt(mac_cb, &sfp_prsnt); - if (!ret) - *link_status = *link_status && sfp_prsnt; + if (mac_cb->media_type == HNAE_MEDIA_TYPE_FIBER) { + ret = mac_cb->dsaf_dev->misc_op->get_sfp_prsnt(mac_cb, + &sfp_prsnt); + if (!ret) + *link_status = *link_status && sfp_prsnt; + } mac_cb->link = *link_status; } @@ -855,7 +858,7 @@ static int hns_mac_get_info(struct hns_mac_cb *mac_cb) of_node_put(np); np = of_parse_phandle(to_of_node(mac_cb->fw_port), - "serdes-syscon", 0); + "serdes-syscon", 0); syscon = syscon_node_to_regmap(np); of_node_put(np); if (IS_ERR_OR_NULL(syscon)) { diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c index 90dbda792614..403ea9db6dbd 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c @@ -1519,6 +1519,7 @@ static void hns_dsaf_set_mac_key( mac_key->high.bits.mac_3 = addr[3]; mac_key->low.bits.mac_4 = addr[4]; mac_key->low.bits.mac_5 = addr[5]; + mac_key->low.bits.port_vlan = 0; dsaf_set_field(mac_key->low.bits.port_vlan, DSAF_TBL_TCAM_KEY_VLAN_M, DSAF_TBL_TCAM_KEY_VLAN_S, vlan_id); dsaf_set_field(mac_key->low.bits.port_vlan, DSAF_TBL_TCAM_KEY_PORT_M, @@ -2924,10 +2925,11 @@ void hns_dsaf_set_promisc_tcam(struct dsaf_device *dsaf_dev, /* find the tcam entry index for promisc */ entry_index = dsaf_promisc_tcam_entry(port); + memset(&tbl_tcam_data, 0, sizeof(tbl_tcam_data)); + memset(&tbl_tcam_mask, 0, sizeof(tbl_tcam_mask)); + /* config key mask */ if (enable) { - memset(&tbl_tcam_data, 0, sizeof(tbl_tcam_data)); - memset(&tbl_tcam_mask, 0, sizeof(tbl_tcam_mask)); dsaf_set_field(tbl_tcam_data.low.bits.port_vlan, DSAF_TBL_TCAM_KEY_PORT_M, DSAF_TBL_TCAM_KEY_PORT_S, port); diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c index a2c22d084ce9..e13aa064a8e9 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c @@ -461,6 +461,32 @@ int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt) return 0; } +int hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb *mac_cb, int *sfp_prsnt) +{ + union acpi_object *obj; + union acpi_object obj_args, argv4; + + obj_args.integer.type = ACPI_TYPE_INTEGER; + obj_args.integer.value = mac_cb->mac_id; + + argv4.type = ACPI_TYPE_PACKAGE, + argv4.package.count = 1, + argv4.package.elements = &obj_args, + + obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev), + hns_dsaf_acpi_dsm_uuid, 0, + HNS_OP_GET_SFP_STAT_FUNC, &argv4); + + if (!obj || obj->type != ACPI_TYPE_INTEGER) + return -ENODEV; + + *sfp_prsnt = obj->integer.value; + + ACPI_FREE(obj); + + return 0; +} + /** * hns_mac_config_sds_loopback - set loop back for serdes * @mac_cb: mac control block @@ -592,7 +618,7 @@ struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev) misc_op->hns_dsaf_roce_srst = hns_dsaf_roce_srst_acpi; misc_op->get_phy_if = hns_mac_get_phy_if_acpi; - misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt; + misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt_acpi; misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback_acpi; } else { diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 2175cced402f..e9af89ad039c 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -6274,8 +6274,8 @@ static int e1000e_pm_freeze(struct device *dev) /* Quiesce the device without resetting the hardware */ e1000e_down(adapter, false); e1000_free_irq(adapter); - e1000e_reset_interrupt_capability(adapter); } + e1000e_reset_interrupt_capability(adapter); /* Allow time for pending master requests to run */ e1000e_disable_pcie_master(&adapter->hw); diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index e8a8351c8ea9..82a95cc2c8ee 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -4438,8 +4438,12 @@ static void i40e_napi_enable_all(struct i40e_vsi *vsi) if (!vsi->netdev) return; - for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++) - napi_enable(&vsi->q_vectors[q_idx]->napi); + for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++) { + struct i40e_q_vector *q_vector = vsi->q_vectors[q_idx]; + + if (q_vector->rx.ring || q_vector->tx.ring) + napi_enable(&q_vector->napi); + } } /** @@ -4453,8 +4457,12 @@ static void i40e_napi_disable_all(struct i40e_vsi *vsi) if (!vsi->netdev) return; - for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++) - napi_disable(&vsi->q_vectors[q_idx]->napi); + for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++) { + struct i40e_q_vector *q_vector = vsi->q_vectors[q_idx]; + + if (q_vector->rx.ring || q_vector->tx.ring) + napi_disable(&q_vector->napi); + } } /** diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 9e757684816d..93949139e62c 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -613,7 +613,7 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev, struct mtk_mac *mac = netdev_priv(dev); struct mtk_eth *eth = mac->hw; struct mtk_tx_dma *itxd, *txd; - struct mtk_tx_buf *tx_buf; + struct mtk_tx_buf *itx_buf, *tx_buf; dma_addr_t mapped_addr; unsigned int nr_frags; int i, n_desc = 1; @@ -627,8 +627,8 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev, fport = (mac->id + 1) << TX_DMA_FPORT_SHIFT; txd4 |= fport; - tx_buf = mtk_desc_to_tx_buf(ring, itxd); - memset(tx_buf, 0, sizeof(*tx_buf)); + itx_buf = mtk_desc_to_tx_buf(ring, itxd); + memset(itx_buf, 0, sizeof(*itx_buf)); if (gso) txd4 |= TX_DMA_TSO; @@ -647,9 +647,11 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev, return -ENOMEM; WRITE_ONCE(itxd->txd1, mapped_addr); - tx_buf->flags |= MTK_TX_FLAGS_SINGLE0; - dma_unmap_addr_set(tx_buf, dma_addr0, mapped_addr); - dma_unmap_len_set(tx_buf, dma_len0, skb_headlen(skb)); + itx_buf->flags |= MTK_TX_FLAGS_SINGLE0; + itx_buf->flags |= (!mac->id) ? MTK_TX_FLAGS_FPORT0 : + MTK_TX_FLAGS_FPORT1; + dma_unmap_addr_set(itx_buf, dma_addr0, mapped_addr); + dma_unmap_len_set(itx_buf, dma_len0, skb_headlen(skb)); /* TX SG offload */ txd = itxd; @@ -685,11 +687,13 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev, last_frag * TX_DMA_LS0)); WRITE_ONCE(txd->txd4, fport); - tx_buf->skb = (struct sk_buff *)MTK_DMA_DUMMY_DESC; tx_buf = mtk_desc_to_tx_buf(ring, txd); memset(tx_buf, 0, sizeof(*tx_buf)); - + tx_buf->skb = (struct sk_buff *)MTK_DMA_DUMMY_DESC; tx_buf->flags |= MTK_TX_FLAGS_PAGE0; + tx_buf->flags |= (!mac->id) ? MTK_TX_FLAGS_FPORT0 : + MTK_TX_FLAGS_FPORT1; + dma_unmap_addr_set(tx_buf, dma_addr0, mapped_addr); dma_unmap_len_set(tx_buf, dma_len0, frag_map_size); frag_size -= frag_map_size; @@ -698,7 +702,7 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev, } /* store skb to cleanup */ - tx_buf->skb = skb; + itx_buf->skb = skb; WRITE_ONCE(itxd->txd4, txd4); WRITE_ONCE(itxd->txd3, (TX_DMA_SWC | TX_DMA_PLEN0(skb_headlen(skb)) | @@ -1012,17 +1016,16 @@ static int mtk_poll_tx(struct mtk_eth *eth, int budget) while ((cpu != dma) && budget) { u32 next_cpu = desc->txd2; - int mac; + int mac = 0; desc = mtk_qdma_phys_to_virt(ring, desc->txd2); if ((desc->txd3 & TX_DMA_OWNER_CPU) == 0) break; - mac = (desc->txd4 >> TX_DMA_FPORT_SHIFT) & - TX_DMA_FPORT_MASK; - mac--; - tx_buf = mtk_desc_to_tx_buf(ring, desc); + if (tx_buf->flags & MTK_TX_FLAGS_FPORT1) + mac = 1; + skb = tx_buf->skb; if (!skb) { condition = 1; diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index 99b1c8e9f16f..08285a96ff70 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -406,12 +406,18 @@ struct mtk_hw_stats { struct u64_stats_sync syncp; }; -/* PDMA descriptor can point at 1-2 segments. This enum allows us to track how - * memory was allocated so that it can be freed properly - */ enum mtk_tx_flags { + /* PDMA descriptor can point at 1-2 segments. This enum allows us to + * track how memory was allocated so that it can be freed properly. + */ MTK_TX_FLAGS_SINGLE0 = 0x01, MTK_TX_FLAGS_PAGE0 = 0x02, + + /* MTK_TX_FLAGS_FPORTx allows tracking which port the transmitted + * SKB out instead of looking up through hardware TX descriptor. + */ + MTK_TX_FLAGS_FPORT0 = 0x04, + MTK_TX_FLAGS_FPORT1 = 0x08, }; /* This enum allows us to identify how the clock is defined on the array of the diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c index 55957246c0e8..b5d5519542e8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c @@ -294,7 +294,7 @@ static int mlx5_handle_changeupper_event(struct mlx5_lag *ldev, struct netdev_notifier_changeupper_info *info) { struct net_device *upper = info->upper_dev, *ndev_tmp; - struct netdev_lag_upper_info *lag_upper_info; + struct netdev_lag_upper_info *lag_upper_info = NULL; bool is_bonded; int bond_status = 0; int num_slaves = 0; @@ -303,7 +303,8 @@ static int mlx5_handle_changeupper_event(struct mlx5_lag *ldev, if (!netif_is_lag_master(upper)) return 0; - lag_upper_info = info->upper_info; + if (info->linking) + lag_upper_info = info->upper_info; /* The event may still be of interest if the slave does not belong to * us, but is enslaved to a master which has one or more of our netdevs diff --git a/drivers/net/ethernet/moxa/moxart_ether.c b/drivers/net/ethernet/moxa/moxart_ether.c index 06c9f4100cb9..6ad44be08b33 100644 --- a/drivers/net/ethernet/moxa/moxart_ether.c +++ b/drivers/net/ethernet/moxa/moxart_ether.c @@ -25,6 +25,7 @@ #include <linux/of_irq.h> #include <linux/crc32.h> #include <linux/crc32c.h> +#include <linux/circ_buf.h> #include "moxart_ether.h" @@ -278,6 +279,13 @@ rx_next: return rx; } +static int moxart_tx_queue_space(struct net_device *ndev) +{ + struct moxart_mac_priv_t *priv = netdev_priv(ndev); + + return CIRC_SPACE(priv->tx_head, priv->tx_tail, TX_DESC_NUM); +} + static void moxart_tx_finished(struct net_device *ndev) { struct moxart_mac_priv_t *priv = netdev_priv(ndev); @@ -297,6 +305,9 @@ static void moxart_tx_finished(struct net_device *ndev) tx_tail = TX_NEXT(tx_tail); } priv->tx_tail = tx_tail; + if (netif_queue_stopped(ndev) && + moxart_tx_queue_space(ndev) >= TX_WAKE_THRESHOLD) + netif_wake_queue(ndev); } static irqreturn_t moxart_mac_interrupt(int irq, void *dev_id) @@ -324,13 +335,18 @@ static int moxart_mac_start_xmit(struct sk_buff *skb, struct net_device *ndev) struct moxart_mac_priv_t *priv = netdev_priv(ndev); void *desc; unsigned int len; - unsigned int tx_head = priv->tx_head; + unsigned int tx_head; u32 txdes1; int ret = NETDEV_TX_BUSY; + spin_lock_irq(&priv->txlock); + + tx_head = priv->tx_head; desc = priv->tx_desc_base + (TX_REG_DESC_SIZE * tx_head); - spin_lock_irq(&priv->txlock); + if (moxart_tx_queue_space(ndev) == 1) + netif_stop_queue(ndev); + if (moxart_desc_read(desc + TX_REG_OFFSET_DESC0) & TX_DESC0_DMA_OWN) { net_dbg_ratelimited("no TX space for packet\n"); priv->stats.tx_dropped++; diff --git a/drivers/net/ethernet/moxa/moxart_ether.h b/drivers/net/ethernet/moxa/moxart_ether.h index 93a9563ac7c6..afc32ec998c0 100644 --- a/drivers/net/ethernet/moxa/moxart_ether.h +++ b/drivers/net/ethernet/moxa/moxart_ether.h @@ -59,6 +59,7 @@ #define TX_NEXT(N) (((N) + 1) & (TX_DESC_NUM_MASK)) #define TX_BUF_SIZE 1600 #define TX_BUF_SIZE_MAX (TX_DESC1_BUF_SIZE_MASK+1) +#define TX_WAKE_THRESHOLD 16 #define RX_DESC_NUM 64 #define RX_DESC_NUM_MASK (RX_DESC_NUM-1) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 9179a99563af..a41377e26c07 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -3275,9 +3275,10 @@ void nfp_net_netdev_clean(struct net_device *netdev) { struct nfp_net *nn = netdev_priv(netdev); + unregister_netdev(nn->netdev); + if (nn->xdp_prog) bpf_prog_put(nn->xdp_prog); if (nn->bpf_offload_xdp) nfp_net_xdp_offload(nn, NULL); - unregister_netdev(nn->netdev); } diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c index 5bd36a4a8fcd..a6e2bbe629bd 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c @@ -583,6 +583,13 @@ qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn, p_params->ets_cbs, p_ets->pri_tc_tbl[0], p_params->max_ets_tc); + if (p_params->ets_enabled && !p_params->max_ets_tc) { + p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES; + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "ETS params: max_ets_tc is forced to %d\n", + p_params->max_ets_tc); + } + /* 8 bit tsa and bw data corresponding to each of the 8 TC's are * encoded in a type u32 array of size 2. */ @@ -1001,6 +1008,8 @@ qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn, u8 pfc_map = 0; int i; + *pfc &= ~DCBX_PFC_ERROR_MASK; + if (p_params->pfc.willing) *pfc |= DCBX_PFC_WILLING_MASK; else @@ -1255,7 +1264,7 @@ static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn, { struct qed_dcbx_get *dcbx_info; - dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL); + dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_ATOMIC); if (!dcbx_info) return NULL; @@ -2073,6 +2082,8 @@ static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc) for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i)); + dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap; + ptt = qed_ptt_acquire(hwfn); if (!ptt) return -EINVAL; diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 54248775f227..f68c4db656ed 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -1127,12 +1127,70 @@ static struct mdiobb_ops bb_ops = { .get_mdio_data = sh_get_mdio, }; +/* free Tx skb function */ +static int sh_eth_tx_free(struct net_device *ndev, bool sent_only) +{ + struct sh_eth_private *mdp = netdev_priv(ndev); + struct sh_eth_txdesc *txdesc; + int free_num = 0; + int entry; + bool sent; + + for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) { + entry = mdp->dirty_tx % mdp->num_tx_ring; + txdesc = &mdp->tx_ring[entry]; + sent = !(txdesc->status & cpu_to_le32(TD_TACT)); + if (sent_only && !sent) + break; + /* TACT bit must be checked before all the following reads */ + dma_rmb(); + netif_info(mdp, tx_done, ndev, + "tx entry %d status 0x%08x\n", + entry, le32_to_cpu(txdesc->status)); + /* Free the original skb. */ + if (mdp->tx_skbuff[entry]) { + dma_unmap_single(&ndev->dev, le32_to_cpu(txdesc->addr), + le32_to_cpu(txdesc->len) >> 16, + DMA_TO_DEVICE); + dev_kfree_skb_irq(mdp->tx_skbuff[entry]); + mdp->tx_skbuff[entry] = NULL; + free_num++; + } + txdesc->status = cpu_to_le32(TD_TFP); + if (entry >= mdp->num_tx_ring - 1) + txdesc->status |= cpu_to_le32(TD_TDLE); + + if (sent) { + ndev->stats.tx_packets++; + ndev->stats.tx_bytes += le32_to_cpu(txdesc->len) >> 16; + } + } + return free_num; +} + /* free skb and descriptor buffer */ static void sh_eth_ring_free(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); int ringsize, i; + if (mdp->rx_ring) { + for (i = 0; i < mdp->num_rx_ring; i++) { + if (mdp->rx_skbuff[i]) { + struct sh_eth_rxdesc *rxdesc = &mdp->rx_ring[i]; + + dma_unmap_single(&ndev->dev, + le32_to_cpu(rxdesc->addr), + ALIGN(mdp->rx_buf_sz, 32), + DMA_FROM_DEVICE); + } + } + ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring; + dma_free_coherent(NULL, ringsize, mdp->rx_ring, + mdp->rx_desc_dma); + mdp->rx_ring = NULL; + } + /* Free Rx skb ringbuffer */ if (mdp->rx_skbuff) { for (i = 0; i < mdp->num_rx_ring; i++) @@ -1141,27 +1199,18 @@ static void sh_eth_ring_free(struct net_device *ndev) kfree(mdp->rx_skbuff); mdp->rx_skbuff = NULL; - /* Free Tx skb ringbuffer */ - if (mdp->tx_skbuff) { - for (i = 0; i < mdp->num_tx_ring; i++) - dev_kfree_skb(mdp->tx_skbuff[i]); - } - kfree(mdp->tx_skbuff); - mdp->tx_skbuff = NULL; - - if (mdp->rx_ring) { - ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring; - dma_free_coherent(NULL, ringsize, mdp->rx_ring, - mdp->rx_desc_dma); - mdp->rx_ring = NULL; - } - if (mdp->tx_ring) { + sh_eth_tx_free(ndev, false); + ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring; dma_free_coherent(NULL, ringsize, mdp->tx_ring, mdp->tx_desc_dma); mdp->tx_ring = NULL; } + + /* Free Tx skb ringbuffer */ + kfree(mdp->tx_skbuff); + mdp->tx_skbuff = NULL; } /* format skb and descriptor buffer */ @@ -1409,43 +1458,6 @@ static void sh_eth_dev_exit(struct net_device *ndev) update_mac_address(ndev); } -/* free Tx skb function */ -static int sh_eth_txfree(struct net_device *ndev) -{ - struct sh_eth_private *mdp = netdev_priv(ndev); - struct sh_eth_txdesc *txdesc; - int free_num = 0; - int entry; - - for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) { - entry = mdp->dirty_tx % mdp->num_tx_ring; - txdesc = &mdp->tx_ring[entry]; - if (txdesc->status & cpu_to_le32(TD_TACT)) - break; - /* TACT bit must be checked before all the following reads */ - dma_rmb(); - netif_info(mdp, tx_done, ndev, - "tx entry %d status 0x%08x\n", - entry, le32_to_cpu(txdesc->status)); - /* Free the original skb. */ - if (mdp->tx_skbuff[entry]) { - dma_unmap_single(&ndev->dev, le32_to_cpu(txdesc->addr), - le32_to_cpu(txdesc->len) >> 16, - DMA_TO_DEVICE); - dev_kfree_skb_irq(mdp->tx_skbuff[entry]); - mdp->tx_skbuff[entry] = NULL; - free_num++; - } - txdesc->status = cpu_to_le32(TD_TFP); - if (entry >= mdp->num_tx_ring - 1) - txdesc->status |= cpu_to_le32(TD_TDLE); - - ndev->stats.tx_packets++; - ndev->stats.tx_bytes += le32_to_cpu(txdesc->len) >> 16; - } - return free_num; -} - /* Packet receive function */ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota) { @@ -1690,7 +1702,7 @@ static void sh_eth_error(struct net_device *ndev, u32 intr_status) intr_status, mdp->cur_tx, mdp->dirty_tx, (u32)ndev->state, edtrr); /* dirty buffer free */ - sh_eth_txfree(ndev); + sh_eth_tx_free(ndev, true); /* SH7712 BUG */ if (edtrr ^ sh_eth_get_edtrr_trns(mdp)) { @@ -1751,7 +1763,7 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev) /* Clear Tx interrupts */ sh_eth_write(ndev, intr_status & cd->tx_check, EESR); - sh_eth_txfree(ndev); + sh_eth_tx_free(ndev, true); netif_wake_queue(ndev); } @@ -2412,7 +2424,7 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev) spin_lock_irqsave(&mdp->lock, flags); if ((mdp->cur_tx - mdp->dirty_tx) >= (mdp->num_tx_ring - 4)) { - if (!sh_eth_txfree(ndev)) { + if (!sh_eth_tx_free(ndev, true)) { netif_warn(mdp, tx_queued, ndev, "TxFD exhausted.\n"); netif_stop_queue(ndev); spin_unlock_irqrestore(&mdp->lock, flags); diff --git a/drivers/net/ethernet/rocker/rocker_ofdpa.c b/drivers/net/ethernet/rocker/rocker_ofdpa.c index 7cd76b6b5cb9..2ae852454780 100644 --- a/drivers/net/ethernet/rocker/rocker_ofdpa.c +++ b/drivers/net/ethernet/rocker/rocker_ofdpa.c @@ -2216,18 +2216,15 @@ static int ofdpa_port_stp_update(struct ofdpa_port *ofdpa_port, { bool want[OFDPA_CTRL_MAX] = { 0, }; bool prev_ctrls[OFDPA_CTRL_MAX]; - u8 uninitialized_var(prev_state); + u8 prev_state; int err; int i; - if (switchdev_trans_ph_prepare(trans)) { - memcpy(prev_ctrls, ofdpa_port->ctrls, sizeof(prev_ctrls)); - prev_state = ofdpa_port->stp_state; - } - - if (ofdpa_port->stp_state == state) + prev_state = ofdpa_port->stp_state; + if (prev_state == state) return 0; + memcpy(prev_ctrls, ofdpa_port->ctrls, sizeof(prev_ctrls)); ofdpa_port->stp_state = state; switch (state) { diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 50d28261b6b9..b9cb697b2818 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -1371,6 +1371,13 @@ static unsigned int efx_wanted_parallelism(struct efx_nic *efx) free_cpumask_var(thread_mask); } + if (count > EFX_MAX_RX_QUEUES) { + netif_cond_dbg(efx, probe, efx->net_dev, !rss_cpus, warn, + "Reducing number of rx queues from %u to %u.\n", + count, EFX_MAX_RX_QUEUES); + count = EFX_MAX_RX_QUEUES; + } + /* If RSS is requested for the PF *and* VFs then we can't write RSS * table entries that are inaccessible to VFs */ diff --git a/drivers/net/ethernet/sfc/falcon/efx.c b/drivers/net/ethernet/sfc/falcon/efx.c index f5e5cd1659a1..29614da91cbf 100644 --- a/drivers/net/ethernet/sfc/falcon/efx.c +++ b/drivers/net/ethernet/sfc/falcon/efx.c @@ -1354,6 +1354,13 @@ static unsigned int ef4_wanted_parallelism(struct ef4_nic *efx) free_cpumask_var(thread_mask); } + if (count > EF4_MAX_RX_QUEUES) { + netif_cond_dbg(efx, probe, efx->net_dev, !rss_cpus, warn, + "Reducing number of rx queues from %u to %u.\n", + count, EF4_MAX_RX_QUEUES); + count = EF4_MAX_RX_QUEUES; + } + return count; } diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 9f3d9c67e3fe..fa674a8bda0c 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1267,6 +1267,7 @@ static void soft_reset_slave(struct cpsw_slave *slave) static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) { u32 slave_port; + struct phy_device *phy; struct cpsw_common *cpsw = priv->cpsw; soft_reset_slave(slave); @@ -1300,27 +1301,28 @@ static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) 1 << slave_port, 0, 0, ALE_MCAST_FWD_2); if (slave->data->phy_node) { - slave->phy = of_phy_connect(priv->ndev, slave->data->phy_node, + phy = of_phy_connect(priv->ndev, slave->data->phy_node, &cpsw_adjust_link, 0, slave->data->phy_if); - if (!slave->phy) { + if (!phy) { dev_err(priv->dev, "phy \"%s\" not found on slave %d\n", slave->data->phy_node->full_name, slave->slave_num); return; } } else { - slave->phy = phy_connect(priv->ndev, slave->data->phy_id, + phy = phy_connect(priv->ndev, slave->data->phy_id, &cpsw_adjust_link, slave->data->phy_if); - if (IS_ERR(slave->phy)) { + if (IS_ERR(phy)) { dev_err(priv->dev, "phy \"%s\" not found on slave %d, err %ld\n", slave->data->phy_id, slave->slave_num, - PTR_ERR(slave->phy)); - slave->phy = NULL; + PTR_ERR(phy)); return; } } + slave->phy = phy; + phy_attached_info(slave->phy); phy_start(slave->phy); @@ -1817,6 +1819,8 @@ static void cpsw_ndo_tx_timeout(struct net_device *ndev) } cpsw_intr_enable(cpsw); + netif_trans_update(ndev); + netif_tx_wake_all_queues(ndev); } static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p) diff --git a/drivers/net/irda/vlsi_ir.c b/drivers/net/irda/vlsi_ir.c index ffedad2a360a..15b920086251 100644 --- a/drivers/net/irda/vlsi_ir.c +++ b/drivers/net/irda/vlsi_ir.c @@ -418,8 +418,9 @@ static struct vlsi_ring *vlsi_alloc_ring(struct pci_dev *pdev, struct ring_descr memset(rd, 0, sizeof(*rd)); rd->hw = hwmap + i; rd->buf = kmalloc(len, GFP_KERNEL|GFP_DMA); - if (rd->buf == NULL || - !(busaddr = pci_map_single(pdev, rd->buf, len, dir))) { + if (rd->buf) + busaddr = pci_map_single(pdev, rd->buf, len, dir); + if (rd->buf == NULL || pci_dma_mapping_error(pdev, busaddr)) { if (rd->buf) { net_err_ratelimited("%s: failed to create PCI-MAP for %p\n", __func__, rd->buf); @@ -430,8 +431,7 @@ static struct vlsi_ring *vlsi_alloc_ring(struct pci_dev *pdev, struct ring_descr rd = r->rd + j; busaddr = rd_get_addr(rd); rd_set_addr_status(rd, 0, 0); - if (busaddr) - pci_unmap_single(pdev, busaddr, len, dir); + pci_unmap_single(pdev, busaddr, len, dir); kfree(rd->buf); rd->buf = NULL; } diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c index e2460a57e4b1..ed0d10f54f26 100644 --- a/drivers/net/phy/dp83640.c +++ b/drivers/net/phy/dp83640.c @@ -1438,8 +1438,6 @@ static bool dp83640_rxtstamp(struct phy_device *phydev, skb_info->tmo = jiffies + SKB_TIMESTAMP_TIMEOUT; skb_queue_tail(&dp83640->rx_queue, skb); schedule_delayed_work(&dp83640->ts_work, SKB_TIMESTAMP_TIMEOUT); - } else { - netif_rx_ni(skb); } return true; diff --git a/drivers/net/phy/mdio-boardinfo.c b/drivers/net/phy/mdio-boardinfo.c index 6b988f77da08..61941e29daae 100644 --- a/drivers/net/phy/mdio-boardinfo.c +++ b/drivers/net/phy/mdio-boardinfo.c @@ -84,3 +84,4 @@ int mdiobus_register_board_info(const struct mdio_board_info *info, return 0; } +EXPORT_SYMBOL(mdiobus_register_board_info); diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 6742070ca676..1326d99771c1 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -798,9 +798,6 @@ static struct phy_driver ksphy_driver[] = { .read_status = genphy_read_status, .ack_interrupt = kszphy_ack_interrupt, .config_intr = kszphy_config_intr, - .get_sset_count = kszphy_get_sset_count, - .get_strings = kszphy_get_strings, - .get_stats = kszphy_get_stats, .suspend = genphy_suspend, .resume = genphy_resume, }, { @@ -940,9 +937,6 @@ static struct phy_driver ksphy_driver[] = { .read_status = genphy_read_status, .ack_interrupt = kszphy_ack_interrupt, .config_intr = kszphy_config_intr, - .get_sset_count = kszphy_get_sset_count, - .get_strings = kszphy_get_strings, - .get_stats = kszphy_get_stats, .suspend = genphy_suspend, .resume = genphy_resume, }, { @@ -952,6 +946,7 @@ static struct phy_driver ksphy_driver[] = { .features = PHY_GBIT_FEATURES, .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, .driver_data = &ksz9021_type, + .probe = kszphy_probe, .config_init = ksz9021_config_init, .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, @@ -971,6 +966,7 @@ static struct phy_driver ksphy_driver[] = { .features = PHY_GBIT_FEATURES, .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, .driver_data = &ksz9021_type, + .probe = kszphy_probe, .config_init = ksz9031_config_init, .config_aneg = genphy_config_aneg, .read_status = ksz9031_read_status, @@ -989,9 +985,6 @@ static struct phy_driver ksphy_driver[] = { .config_init = kszphy_config_init, .config_aneg = ksz8873mll_config_aneg, .read_status = ksz8873mll_read_status, - .get_sset_count = kszphy_get_sset_count, - .get_strings = kszphy_get_strings, - .get_stats = kszphy_get_stats, .suspend = genphy_suspend, .resume = genphy_resume, }, { @@ -1003,9 +996,6 @@ static struct phy_driver ksphy_driver[] = { .config_init = kszphy_config_init, .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, - .get_sset_count = kszphy_get_sset_count, - .get_strings = kszphy_get_strings, - .get_stats = kszphy_get_stats, .suspend = genphy_suspend, .resume = genphy_resume, }, { @@ -1017,9 +1007,6 @@ static struct phy_driver ksphy_driver[] = { .config_init = kszphy_config_init, .config_aneg = ksz8873mll_config_aneg, .read_status = ksz8873mll_read_status, - .get_sset_count = kszphy_get_sset_count, - .get_strings = kszphy_get_strings, - .get_stats = kszphy_get_stats, .suspend = genphy_suspend, .resume = genphy_resume, } }; diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 1be69d8bc909..a2bfc82e95d7 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -681,7 +681,7 @@ void phy_stop_machine(struct phy_device *phydev) cancel_delayed_work_sync(&phydev->state_queue); mutex_lock(&phydev->lock); - if (phydev->state > PHY_UP) + if (phydev->state > PHY_UP && phydev->state != PHY_HALTED) phydev->state = PHY_UP; mutex_unlock(&phydev->lock); } diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 1b52520715ae..f8c81f12d988 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -990,7 +990,7 @@ static void team_port_disable(struct team *team, #define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ NETIF_F_RXCSUM | NETIF_F_ALL_TSO) -static void ___team_compute_features(struct team *team) +static void __team_compute_features(struct team *team) { struct team_port *port; u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL; @@ -1023,16 +1023,10 @@ static void ___team_compute_features(struct team *team) team->dev->priv_flags |= IFF_XMIT_DST_RELEASE; } -static void __team_compute_features(struct team *team) -{ - ___team_compute_features(team); - netdev_change_features(team->dev); -} - static void team_compute_features(struct team *team) { mutex_lock(&team->lock); - ___team_compute_features(team); + __team_compute_features(team); mutex_unlock(&team->lock); netdev_change_features(team->dev); } @@ -1641,6 +1635,7 @@ static void team_uninit(struct net_device *dev) team_notify_peers_fini(team); team_queue_override_fini(team); mutex_unlock(&team->lock); + netdev_change_features(dev); } static void team_destructor(struct net_device *dev) @@ -1928,6 +1923,10 @@ static int team_add_slave(struct net_device *dev, struct net_device *port_dev) mutex_lock(&team->lock); err = team_port_add(team, port_dev); mutex_unlock(&team->lock); + + if (!err) + netdev_change_features(dev); + return err; } @@ -1939,6 +1938,10 @@ static int team_del_slave(struct net_device *dev, struct net_device *port_dev) mutex_lock(&team->lock); err = team_port_del(team, port_dev); mutex_unlock(&team->lock); + + if (!err) + netdev_change_features(dev); + return err; } diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index f5552aaaa77a..f3ae88fdf332 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -532,6 +532,7 @@ static const struct driver_info wwan_info = { #define LENOVO_VENDOR_ID 0x17ef #define NVIDIA_VENDOR_ID 0x0955 #define HP_VENDOR_ID 0x03f0 +#define MICROSOFT_VENDOR_ID 0x045e static const struct usb_device_id products[] = { /* BLACKLIST !! @@ -761,6 +762,20 @@ static const struct usb_device_id products[] = { .driver_info = 0, }, +/* Microsoft Surface 2 dock (based on Realtek RTL8152) */ +{ + USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), + .driver_info = 0, +}, + +/* Microsoft Surface 3 dock (based on Realtek RTL8153) */ +{ + USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), + .driver_info = 0, +}, + /* WHITELIST!!! * * CDC Ether uses two interfaces, not necessarily consecutive. diff --git a/drivers/net/usb/ch9200.c b/drivers/net/usb/ch9200.c index 8a40202c0a17..c4f1c363e24b 100644 --- a/drivers/net/usb/ch9200.c +++ b/drivers/net/usb/ch9200.c @@ -254,14 +254,9 @@ static struct sk_buff *ch9200_tx_fixup(struct usbnet *dev, struct sk_buff *skb, tx_overhead = 0x40; len = skb->len; - if (skb_headroom(skb) < tx_overhead) { - struct sk_buff *skb2; - - skb2 = skb_copy_expand(skb, tx_overhead, 0, flags); + if (skb_cow_head(skb, tx_overhead)) { dev_kfree_skb_any(skb); - skb = skb2; - if (!skb) - return NULL; + return NULL; } __skb_push(skb, tx_overhead); diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c index e221bfcee76b..947bea81d924 100644 --- a/drivers/net/usb/cx82310_eth.c +++ b/drivers/net/usb/cx82310_eth.c @@ -293,12 +293,9 @@ static struct sk_buff *cx82310_tx_fixup(struct usbnet *dev, struct sk_buff *skb, { int len = skb->len; - if (skb_headroom(skb) < 2) { - struct sk_buff *skb2 = skb_copy_expand(skb, 2, 0, flags); + if (skb_cow_head(skb, 2)) { dev_kfree_skb_any(skb); - skb = skb2; - if (!skb) - return NULL; + return NULL; } skb_push(skb, 2); diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c index 876f02f4945e..2a2c3edb6bad 100644 --- a/drivers/net/usb/kaweth.c +++ b/drivers/net/usb/kaweth.c @@ -803,18 +803,12 @@ static netdev_tx_t kaweth_start_xmit(struct sk_buff *skb, } /* We now decide whether we can put our special header into the sk_buff */ - if (skb_cloned(skb) || skb_headroom(skb) < 2) { - /* no such luck - we make our own */ - struct sk_buff *copied_skb; - copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC); - dev_kfree_skb_irq(skb); - skb = copied_skb; - if (!copied_skb) { - kaweth->stats.tx_errors++; - netif_start_queue(net); - spin_unlock_irq(&kaweth->device_lock); - return NETDEV_TX_OK; - } + if (skb_cow_head(skb, 2)) { + kaweth->stats.tx_errors++; + netif_start_queue(net); + spin_unlock_irq(&kaweth->device_lock); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; } private_header = (__le16 *)__skb_push(skb, 2); diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index 9889a70ff4f6..636f48f19d1e 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -2607,14 +2607,9 @@ static struct sk_buff *lan78xx_tx_prep(struct lan78xx_net *dev, { u32 tx_cmd_a, tx_cmd_b; - if (skb_headroom(skb) < TX_OVERHEAD) { - struct sk_buff *skb2; - - skb2 = skb_copy_expand(skb, TX_OVERHEAD, 0, flags); + if (skb_cow_head(skb, TX_OVERHEAD)) { dev_kfree_skb_any(skb); - skb = skb2; - if (!skb) - return NULL; + return NULL; } if (lan78xx_linearize(skb) < 0) diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 156f7f85e486..2474618404f5 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -908,7 +908,7 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */ {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */ - {QMI_FIXED_INTF(0x1bc7, 0x1201, 2)}, /* Telit LE920 */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)}, /* Telit LE920, LE920A4 */ {QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */ {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */ {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */ diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 0b1b9188625d..07f788c49d57 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -517,6 +517,7 @@ enum rtl8152_flags { /* Define these values to match your device */ #define VENDOR_ID_REALTEK 0x0bda +#define VENDOR_ID_MICROSOFT 0x045e #define VENDOR_ID_SAMSUNG 0x04e8 #define VENDOR_ID_LENOVO 0x17ef #define VENDOR_ID_NVIDIA 0x0955 @@ -1294,6 +1295,7 @@ static void intr_callback(struct urb *urb) } } else { if (netif_carrier_ok(tp->netdev)) { + netif_stop_queue(tp->netdev); set_bit(RTL8152_LINK_CHG, &tp->flags); schedule_delayed_work(&tp->schedule, 0); } @@ -3169,6 +3171,9 @@ static void set_carrier(struct r8152 *tp) napi_enable(&tp->napi); netif_wake_queue(netdev); netif_info(tp, link, netdev, "carrier on\n"); + } else if (netif_queue_stopped(netdev) && + skb_queue_len(&tp->tx_queue) < tp->tx_qlen) { + netif_wake_queue(netdev); } } else { if (netif_carrier_ok(netdev)) { @@ -3702,8 +3707,18 @@ static int rtl8152_resume(struct usb_interface *intf) tp->rtl_ops.autosuspend_en(tp, false); napi_disable(&tp->napi); set_bit(WORK_ENABLE, &tp->flags); - if (netif_carrier_ok(tp->netdev)) - rtl_start_rx(tp); + + if (netif_carrier_ok(tp->netdev)) { + if (rtl8152_get_speed(tp) & LINK_STATUS) { + rtl_start_rx(tp); + } else { + netif_carrier_off(tp->netdev); + tp->rtl_ops.disable(tp); + netif_info(tp, link, tp->netdev, + "linking down\n"); + } + } + napi_enable(&tp->napi); clear_bit(SELECTIVE_SUSPEND, &tp->flags); smp_mb__after_atomic(); @@ -4507,6 +4522,8 @@ static void rtl8152_disconnect(struct usb_interface *intf) static struct usb_device_id rtl8152_table[] = { {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152)}, {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153)}, + {REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07ab)}, + {REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07c6)}, {REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)}, {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x304f)}, {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x3062)}, diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index 0b17b40d7a4f..190de9a90f73 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -2203,13 +2203,9 @@ static struct sk_buff *smsc75xx_tx_fixup(struct usbnet *dev, { u32 tx_cmd_a, tx_cmd_b; - if (skb_headroom(skb) < SMSC75XX_TX_OVERHEAD) { - struct sk_buff *skb2 = - skb_copy_expand(skb, SMSC75XX_TX_OVERHEAD, 0, flags); + if (skb_cow_head(skb, SMSC75XX_TX_OVERHEAD)) { dev_kfree_skb_any(skb); - skb = skb2; - if (!skb) - return NULL; + return NULL; } tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN) | TX_CMD_A_FCS; diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 831aa33d078a..5f19fb0f025d 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -2001,13 +2001,13 @@ static struct sk_buff *smsc95xx_tx_fixup(struct usbnet *dev, /* We do not advertise SG, so skbs should be already linearized */ BUG_ON(skb_shinfo(skb)->nr_frags); - if (skb_headroom(skb) < overhead) { - struct sk_buff *skb2 = skb_copy_expand(skb, - overhead, 0, flags); + /* Make writable and expand header space by overhead if required */ + if (skb_cow_head(skb, overhead)) { + /* Must deallocate here as returning NULL to indicate error + * means the skb won't be deallocated in the caller. + */ dev_kfree_skb_any(skb); - skb = skb2; - if (!skb) - return NULL; + return NULL; } if (csum) { diff --git a/drivers/net/usb/sr9700.c b/drivers/net/usb/sr9700.c index 4a1e9c489f1f..aadfe1d1c37e 100644 --- a/drivers/net/usb/sr9700.c +++ b/drivers/net/usb/sr9700.c @@ -456,14 +456,9 @@ static struct sk_buff *sr9700_tx_fixup(struct usbnet *dev, struct sk_buff *skb, len = skb->len; - if (skb_headroom(skb) < SR_TX_OVERHEAD) { - struct sk_buff *skb2; - - skb2 = skb_copy_expand(skb, SR_TX_OVERHEAD, 0, flags); + if (skb_cow_head(skb, SR_TX_OVERHEAD)) { dev_kfree_skb_any(skb); - skb = skb2; - if (!skb) - return NULL; + return NULL; } __skb_push(skb, SR_TX_OVERHEAD); diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 3de65ea6531a..453244805c52 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1929,7 +1929,7 @@ static int __usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, " value=0x%04x index=0x%04x size=%d\n", cmd, reqtype, value, index, size); - if (data) { + if (size) { buf = kmalloc(size, GFP_KERNEL); if (!buf) goto out; @@ -1938,8 +1938,13 @@ static int __usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, err = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), cmd, reqtype, value, index, buf, size, USB_CTRL_GET_TIMEOUT); - if (err > 0 && err <= size) - memcpy(data, buf, err); + if (err > 0 && err <= size) { + if (data) + memcpy(data, buf, err); + else + netdev_dbg(dev->net, + "Huh? Data requested but thrown away.\n"); + } kfree(buf); out: return err; @@ -1960,7 +1965,13 @@ static int __usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, buf = kmemdup(data, size, GFP_KERNEL); if (!buf) goto out; - } + } else { + if (size) { + WARN_ON_ONCE(1); + err = -EINVAL; + goto out; + } + } err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), cmd, reqtype, value, index, buf, size, diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index ea9890d61967..f36584616e7d 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -2230,14 +2230,8 @@ static bool virtnet_validate_features(struct virtio_device *vdev) #define MIN_MTU ETH_MIN_MTU #define MAX_MTU ETH_MAX_MTU -static int virtnet_probe(struct virtio_device *vdev) +static int virtnet_validate(struct virtio_device *vdev) { - int i, err; - struct net_device *dev; - struct virtnet_info *vi; - u16 max_queue_pairs; - int mtu; - if (!vdev->config->get) { dev_err(&vdev->dev, "%s failure: config access disabled\n", __func__); @@ -2247,6 +2241,25 @@ static int virtnet_probe(struct virtio_device *vdev) if (!virtnet_validate_features(vdev)) return -EINVAL; + if (virtio_has_feature(vdev, VIRTIO_NET_F_MTU)) { + int mtu = virtio_cread16(vdev, + offsetof(struct virtio_net_config, + mtu)); + if (mtu < MIN_MTU) + __virtio_clear_bit(vdev, VIRTIO_NET_F_MTU); + } + + return 0; +} + +static int virtnet_probe(struct virtio_device *vdev) +{ + int i, err; + struct net_device *dev; + struct virtnet_info *vi; + u16 max_queue_pairs; + int mtu; + /* Find if host supports multiqueue virtio_net device */ err = virtio_cread_feature(vdev, VIRTIO_NET_F_MQ, struct virtio_net_config, @@ -2362,11 +2375,20 @@ static int virtnet_probe(struct virtio_device *vdev) offsetof(struct virtio_net_config, mtu)); if (mtu < dev->min_mtu) { - __virtio_clear_bit(vdev, VIRTIO_NET_F_MTU); - } else { - dev->mtu = mtu; - dev->max_mtu = mtu; + /* Should never trigger: MTU was previously validated + * in virtnet_validate. + */ + dev_err(&vdev->dev, "device MTU appears to have changed " + "it is now %d < %d", mtu, dev->min_mtu); + goto free_stats; } + + dev->mtu = mtu; + dev->max_mtu = mtu; + + /* TODO: size buffers correctly in this case. */ + if (dev->mtu > ETH_DATA_LEN) + vi->big_packets = true; } if (vi->any_header_sg) @@ -2544,6 +2566,7 @@ static struct virtio_driver virtio_net_driver = { .driver.name = KBUILD_MODNAME, .driver.owner = THIS_MODULE, .id_table = id_table, + .validate = virtnet_validate, .probe = virtnet_probe, .remove = virtnet_remove, .config_changed = virtnet_config_changed, diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index d6988db1930d..7d909c8183e9 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -1128,7 +1128,7 @@ static int vrf_fib_rule(const struct net_device *dev, __u8 family, bool add_it) goto nla_put_failure; /* rule only needs to appear once */ - nlh->nlmsg_flags &= NLM_F_EXCL; + nlh->nlmsg_flags |= NLM_F_EXCL; frh = nlmsg_data(nlh); memset(frh, 0, sizeof(*frh)); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c index de19c7c92bc6..85d949e03f79 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c @@ -2238,14 +2238,16 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); struct brcmf_p2p_info *p2p = &cfg->p2p; struct brcmf_cfg80211_vif *vif; + enum nl80211_iftype iftype; bool wait_for_disable = false; int err; brcmf_dbg(TRACE, "delete P2P vif\n"); vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); + iftype = vif->wdev.iftype; brcmf_cfg80211_arm_vif_event(cfg, vif); - switch (vif->wdev.iftype) { + switch (iftype) { case NL80211_IFTYPE_P2P_CLIENT: if (test_bit(BRCMF_VIF_STATUS_DISCONNECTING, &vif->sme_state)) wait_for_disable = true; @@ -2275,7 +2277,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) BRCMF_P2P_DISABLE_TIMEOUT); err = 0; - if (vif->wdev.iftype != NL80211_IFTYPE_P2P_DEVICE) { + if (iftype != NL80211_IFTYPE_P2P_DEVICE) { brcmf_vif_clear_mgmt_ies(vif); err = brcmf_p2p_release_p2p_if(vif); } @@ -2291,7 +2293,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) brcmf_remove_interface(vif->ifp, true); brcmf_cfg80211_arm_vif_event(cfg, NULL); - if (vif->wdev.iftype != NL80211_IFTYPE_P2P_DEVICE) + if (iftype != NL80211_IFTYPE_P2P_DEVICE) p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL; return err; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index a260cd503200..077bfd8f4c0c 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -1056,6 +1056,8 @@ static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, if (ret) return ret; + if (count == 0) + return 0; iwl_mvm_fw_dbg_collect(mvm, FW_DBG_TRIGGER_USER, buf, (count - 1), NULL); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c index 99132ea16ede..c5734e1a02d2 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c @@ -216,7 +216,8 @@ u32 iwl_mvm_mac_get_queues_mask(struct ieee80211_vif *vif) qmask |= BIT(vif->hw_queue[ac]); } - if (vif->type == NL80211_IFTYPE_AP) + if (vif->type == NL80211_IFTYPE_AP || + vif->type == NL80211_IFTYPE_ADHOC) qmask |= BIT(vif->cab_queue); return qmask; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 6927caecd48e..486dcceed17a 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -2401,7 +2401,7 @@ void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) return; rcu_read_lock(); - sta = mvm->fw_id_to_mac_id[notif->sta_id]; + sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); if (WARN_ON(IS_ERR_OR_NULL(sta))) { rcu_read_unlock(); return; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c index b51a2853cc80..9d28db7f56aa 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c @@ -1806,7 +1806,8 @@ int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) iwl_mvm_get_wd_timeout(mvm, vif, false, false); int queue; - if (vif->type == NL80211_IFTYPE_AP) + if (vif->type == NL80211_IFTYPE_AP || + vif->type == NL80211_IFTYPE_ADHOC) queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; @@ -1837,7 +1838,8 @@ int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) * enabled-cab_queue to the mask) */ if (iwl_mvm_is_dqa_supported(mvm) && - vif->type == NL80211_IFTYPE_AP) { + (vif->type == NL80211_IFTYPE_AP || + vif->type == NL80211_IFTYPE_ADHOC)) { struct iwl_trans_txq_scd_cfg cfg = { .fifo = IWL_MVM_TX_FIFO_MCAST, .sta_id = mvmvif->bcast_sta.sta_id, @@ -1862,7 +1864,8 @@ static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, lockdep_assert_held(&mvm->mutex); - if (vif->type == NL80211_IFTYPE_AP) + if (vif->type == NL80211_IFTYPE_AP || + vif->type == NL80211_IFTYPE_ADHOC) iwl_mvm_disable_txq(mvm, vif->cab_queue, vif->cab_queue, IWL_MAX_TID_COUNT, 0); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index 3f37075f4cde..1ba0a6f55503 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -506,6 +506,7 @@ static int iwl_mvm_get_ctrl_vif_queue(struct iwl_mvm *mvm, switch (info->control.vif->type) { case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_ADHOC: /* * Handle legacy hostapd as well, where station may be added * only after assoc. Take care of the case where we send a @@ -517,7 +518,8 @@ static int iwl_mvm_get_ctrl_vif_queue(struct iwl_mvm *mvm, if (info->hw_queue == info->control.vif->cab_queue) return info->hw_queue; - WARN_ONCE(1, "fc=0x%02x", le16_to_cpu(fc)); + WARN_ONCE(info->control.vif->type != NL80211_IFTYPE_ADHOC, + "fc=0x%02x", le16_to_cpu(fc)); return IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; case NL80211_IFTYPE_P2P_DEVICE: if (ieee80211_is_mgmt(fc)) @@ -584,7 +586,8 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb) iwl_mvm_vif_from_mac80211(info.control.vif); if (info.control.vif->type == NL80211_IFTYPE_P2P_DEVICE || - info.control.vif->type == NL80211_IFTYPE_AP) { + info.control.vif->type == NL80211_IFTYPE_AP || + info.control.vif->type == NL80211_IFTYPE_ADHOC) { sta_id = mvmvif->bcast_sta.sta_id; queue = iwl_mvm_get_ctrl_vif_queue(mvm, &info, hdr->frame_control); diff --git a/drivers/net/wireless/realtek/rtlwifi/base.c b/drivers/net/wireless/realtek/rtlwifi/base.c index caea350f05aa..bdc379178e87 100644 --- a/drivers/net/wireless/realtek/rtlwifi/base.c +++ b/drivers/net/wireless/realtek/rtlwifi/base.c @@ -1742,12 +1742,14 @@ void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, u8 tag, u8 len, u8 *val) unsigned long flags; struct rtl_c2hcmd *c2hcmd; - c2hcmd = kmalloc(sizeof(*c2hcmd), GFP_KERNEL); + c2hcmd = kmalloc(sizeof(*c2hcmd), + in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); if (!c2hcmd) goto label_err; - c2hcmd->val = kmalloc(len, GFP_KERNEL); + c2hcmd->val = kmalloc(len, + in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); if (!c2hcmd->val) goto label_err2; diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index 23d4a1728cdf..351bac8f6503 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -934,8 +934,14 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm, rc = nd_desc->ndctl(nd_desc, nvdimm, cmd, buf, buf_len, NULL); if (rc < 0) goto out_unlock; + nvdimm_bus_unlock(&nvdimm_bus->dev); + if (copy_to_user(p, buf, buf_len)) rc = -EFAULT; + + vfree(buf); + return rc; + out_unlock: nvdimm_bus_unlock(&nvdimm_bus->dev); out: diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c index b3323c0697f6..ca6d572c48fc 100644 --- a/drivers/nvdimm/claim.c +++ b/drivers/nvdimm/claim.c @@ -243,7 +243,15 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns, } if (unlikely(is_bad_pmem(&nsio->bb, sector, sz_align))) { - if (IS_ALIGNED(offset, 512) && IS_ALIGNED(size, 512)) { + /* + * FIXME: nsio_rw_bytes() may be called from atomic + * context in the btt case and nvdimm_clear_poison() + * takes a sleeping lock. Until the locking can be + * reworked this capability requires that the namespace + * is not claimed by btt. + */ + if (IS_ALIGNED(offset, 512) && IS_ALIGNED(size, 512) + && (!ndns->claim || !is_nd_btt(ndns->claim))) { long cleared; cleared = nvdimm_clear_poison(&ndns->dev, offset, size); diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c index 0eedc49e0d47..8b721321be5b 100644 --- a/drivers/nvdimm/dimm_devs.c +++ b/drivers/nvdimm/dimm_devs.c @@ -395,7 +395,7 @@ EXPORT_SYMBOL_GPL(nvdimm_create); int alias_dpa_busy(struct device *dev, void *data) { - resource_size_t map_end, blk_start, new, busy; + resource_size_t map_end, blk_start, new; struct blk_alloc_info *info = data; struct nd_mapping *nd_mapping; struct nd_region *nd_region; @@ -436,29 +436,19 @@ int alias_dpa_busy(struct device *dev, void *data) retry: /* * Find the free dpa from the end of the last pmem allocation to - * the end of the interleave-set mapping that is not already - * covered by a blk allocation. + * the end of the interleave-set mapping. */ - busy = 0; for_each_dpa_resource(ndd, res) { + if (strncmp(res->name, "pmem", 4) != 0) + continue; if ((res->start >= blk_start && res->start < map_end) || (res->end >= blk_start && res->end <= map_end)) { - if (strncmp(res->name, "pmem", 4) == 0) { - new = max(blk_start, min(map_end + 1, - res->end + 1)); - if (new != blk_start) { - blk_start = new; - goto retry; - } - } else - busy += min(map_end, res->end) - - max(nd_mapping->start, res->start) + 1; - } else if (nd_mapping->start > res->start - && map_end < res->end) { - /* total eclipse of the PMEM region mapping */ - busy += nd_mapping->size; - break; + new = max(blk_start, min(map_end + 1, res->end + 1)); + if (new != blk_start) { + blk_start = new; + goto retry; + } } } @@ -470,52 +460,11 @@ int alias_dpa_busy(struct device *dev, void *data) return 1; } - info->available -= blk_start - nd_mapping->start + busy; + info->available -= blk_start - nd_mapping->start; return 0; } -static int blk_dpa_busy(struct device *dev, void *data) -{ - struct blk_alloc_info *info = data; - struct nd_mapping *nd_mapping; - struct nd_region *nd_region; - resource_size_t map_end; - int i; - - if (!is_nd_pmem(dev)) - return 0; - - nd_region = to_nd_region(dev); - for (i = 0; i < nd_region->ndr_mappings; i++) { - nd_mapping = &nd_region->mapping[i]; - if (nd_mapping->nvdimm == info->nd_mapping->nvdimm) - break; - } - - if (i >= nd_region->ndr_mappings) - return 0; - - map_end = nd_mapping->start + nd_mapping->size - 1; - if (info->res->start >= nd_mapping->start - && info->res->start < map_end) { - if (info->res->end <= map_end) { - info->busy = 0; - return 1; - } else { - info->busy -= info->res->end - map_end; - return 0; - } - } else if (info->res->end >= nd_mapping->start - && info->res->end <= map_end) { - info->busy -= nd_mapping->start - info->res->start; - return 0; - } else { - info->busy -= nd_mapping->size; - return 0; - } -} - /** * nd_blk_available_dpa - account the unused dpa of BLK region * @nd_mapping: container of dpa-resource-root + labels @@ -545,11 +494,7 @@ resource_size_t nd_blk_available_dpa(struct nd_region *nd_region) for_each_dpa_resource(ndd, res) { if (strncmp(res->name, "blk", 3) != 0) continue; - - info.res = res; - info.busy = resource_size(res); - device_for_each_child(&nvdimm_bus->dev, &info, blk_dpa_busy); - info.available -= info.busy; + info.available -= resource_size(res); } return info.available; diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 263946b23628..d5e0906262ea 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -61,6 +61,10 @@ module_param(default_ps_max_latency_us, ulong, 0644); MODULE_PARM_DESC(default_ps_max_latency_us, "max power saving latency for new devices; use PM QOS to change per device"); +static bool force_apst; +module_param(force_apst, bool, 0644); +MODULE_PARM_DESC(force_apst, "allow APST for newly enumerated devices even if quirked off"); + static LIST_HEAD(nvme_ctrl_list); static DEFINE_SPINLOCK(dev_list_lock); @@ -1325,7 +1329,7 @@ static void nvme_configure_apst(struct nvme_ctrl *ctrl) * heuristic: we are willing to spend at most 2% of the time * transitioning between power states. Therefore, when running * in any given state, we will enter the next lower-power - * non-operational state after waiting 100 * (enlat + exlat) + * non-operational state after waiting 50 * (enlat + exlat) * microseconds, as long as that state's total latency is under * the requested maximum latency. * @@ -1336,6 +1340,8 @@ static void nvme_configure_apst(struct nvme_ctrl *ctrl) unsigned apste; struct nvme_feat_auto_pst *table; + u64 max_lat_us = 0; + int max_ps = -1; int ret; /* @@ -1357,6 +1363,7 @@ static void nvme_configure_apst(struct nvme_ctrl *ctrl) if (ctrl->ps_max_latency_us == 0) { /* Turn off APST. */ apste = 0; + dev_dbg(ctrl->device, "APST disabled\n"); } else { __le64 target = cpu_to_le64(0); int state; @@ -1374,6 +1381,14 @@ static void nvme_configure_apst(struct nvme_ctrl *ctrl) table->entries[state] = target; /* + * Don't allow transitions to the deepest state + * if it's quirked off. + */ + if (state == ctrl->npss && + (ctrl->quirks & NVME_QUIRK_NO_DEEPEST_PS)) + continue; + + /* * Is this state a useful non-operational state for * higher-power states to autonomously transition to? */ @@ -1398,9 +1413,22 @@ static void nvme_configure_apst(struct nvme_ctrl *ctrl) target = cpu_to_le64((state << 3) | (transition_ms << 8)); + + if (max_ps == -1) + max_ps = state; + + if (total_latency_us > max_lat_us) + max_lat_us = total_latency_us; } apste = 1; + + if (max_ps == -1) { + dev_dbg(ctrl->device, "APST enabled but no non-operational states are available\n"); + } else { + dev_dbg(ctrl->device, "APST enabled: max PS = %d, max round-trip latency = %lluus, table = %*phN\n", + max_ps, max_lat_us, (int)sizeof(*table), table); + } } ret = nvme_set_features(ctrl, NVME_FEAT_AUTO_PST, apste, @@ -1445,16 +1473,15 @@ struct nvme_core_quirk_entry { }; static const struct nvme_core_quirk_entry core_quirks[] = { - /* - * Seen on a Samsung "SM951 NVMe SAMSUNG 256GB": using APST causes - * the controller to go out to lunch. It dies when the watchdog - * timer reads CSTS and gets 0xffffffff. - */ { - .vid = 0x144d, - .fr = "BXW75D0Q", + /* + * This Toshiba device seems to die using any APST states. See: + * https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184/comments/11 + */ + .vid = 0x1179, + .mn = "THNSF5256GPUK TOSHIBA", .quirks = NVME_QUIRK_NO_APST, - }, + } }; /* match is null-terminated but idstr is space-padded. */ @@ -1539,6 +1566,11 @@ int nvme_init_identify(struct nvme_ctrl *ctrl) } } + if (force_apst && (ctrl->quirks & NVME_QUIRK_NO_DEEPEST_PS)) { + dev_warn(ctrl->dev, "forcibly allowing all power states due to nvme_core.force_apst -- use at your own risk\n"); + ctrl->quirks &= ~NVME_QUIRK_NO_DEEPEST_PS; + } + ctrl->oacs = le16_to_cpu(id->oacs); ctrl->vid = le16_to_cpu(id->vid); ctrl->oncs = le16_to_cpup(&id->oncs); @@ -1561,7 +1593,16 @@ int nvme_init_identify(struct nvme_ctrl *ctrl) ctrl->npss = id->npss; prev_apsta = ctrl->apsta; - ctrl->apsta = (ctrl->quirks & NVME_QUIRK_NO_APST) ? 0 : id->apsta; + if (ctrl->quirks & NVME_QUIRK_NO_APST) { + if (force_apst && id->apsta) { + dev_warn(ctrl->dev, "forcibly allowing APST due to nvme_core.force_apst -- use at your own risk\n"); + ctrl->apsta = 1; + } else { + ctrl->apsta = 0; + } + } else { + ctrl->apsta = id->apsta; + } memcpy(ctrl->psd, id->psd, sizeof(ctrl->psd)); if (ctrl->ops->is_fabrics) { diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index c6ef6c30e2f0..29c708ca9621 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -71,6 +71,11 @@ enum nvme_quirks { * APST should not be used. */ NVME_QUIRK_NO_APST = (1 << 4), + + /* + * The deepest sleep state should not be used. + */ + NVME_QUIRK_NO_DEEPEST_PS = (1 << 5), }; /* diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 212f7e0db84f..c8541c3dcd19 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -19,6 +19,7 @@ #include <linux/blk-mq-pci.h> #include <linux/cpu.h> #include <linux/delay.h> +#include <linux/dmi.h> #include <linux/errno.h> #include <linux/fs.h> #include <linux/genhd.h> @@ -2070,10 +2071,31 @@ static int nvme_dev_map(struct nvme_dev *dev) return -ENODEV; } +static unsigned long check_dell_samsung_bug(struct pci_dev *pdev) +{ + if (pdev->vendor == 0x144d && pdev->device == 0xa802) { + /* + * Several Samsung devices seem to drop off the PCIe bus + * randomly when APST is on and uses the deepest sleep state. + * This has been observed on a Samsung "SM951 NVMe SAMSUNG + * 256GB", a "PM951 NVMe SAMSUNG 512GB", and a "Samsung SSD + * 950 PRO 256GB", but it seems to be restricted to two Dell + * laptops. + */ + if (dmi_match(DMI_SYS_VENDOR, "Dell Inc.") && + (dmi_match(DMI_PRODUCT_NAME, "XPS 15 9550") || + dmi_match(DMI_PRODUCT_NAME, "Precision 5510"))) + return NVME_QUIRK_NO_DEEPEST_PS; + } + + return 0; +} + static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id) { int node, result = -ENOMEM; struct nvme_dev *dev; + unsigned long quirks = id->driver_data; node = dev_to_node(&pdev->dev); if (node == NUMA_NO_NODE) @@ -2105,8 +2127,10 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (result) goto put_pci; + quirks |= check_dell_samsung_bug(pdev); + result = nvme_init_ctrl(&dev->ctrl, &pdev->dev, &nvme_pci_ctrl_ops, - id->driver_data); + quirks); if (result) goto release_pools; diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 53b611f9ba5d..29cf88ac3f61 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -1599,7 +1599,7 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl) } ctrl->ctrl.sqsize = - min_t(int, NVME_CAP_MQES(ctrl->cap) + 1, ctrl->ctrl.sqsize); + min_t(int, NVME_CAP_MQES(ctrl->cap), ctrl->ctrl.sqsize); error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->cap); if (error) diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index 8260ee1f8e48..304f1c87c160 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -405,7 +405,7 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl) } ctrl->ctrl.sqsize = - min_t(int, NVME_CAP_MQES(ctrl->cap) + 1, ctrl->ctrl.sqsize); + min_t(int, NVME_CAP_MQES(ctrl->cap), ctrl->ctrl.sqsize); error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->cap); if (error) diff --git a/drivers/pci/dwc/Kconfig b/drivers/pci/dwc/Kconfig index dfb8a69afc28..d2d2ba5b8a68 100644 --- a/drivers/pci/dwc/Kconfig +++ b/drivers/pci/dwc/Kconfig @@ -89,6 +89,7 @@ config PCI_HISI depends on PCI_MSI_IRQ_DOMAIN select PCIEPORTBUS select PCIE_DW_HOST + select PCI_HOST_COMMON help Say Y here if you want PCIe controller support on HiSilicon Hip05 and Hip06 SoCs diff --git a/drivers/pci/dwc/pcie-artpec6.c b/drivers/pci/dwc/pcie-artpec6.c index fcd3ef845883..6d23683c0892 100644 --- a/drivers/pci/dwc/pcie-artpec6.c +++ b/drivers/pci/dwc/pcie-artpec6.c @@ -234,6 +234,9 @@ static int artpec6_add_pcie_port(struct artpec6_pcie *artpec6_pcie, return 0; } +static const struct dw_pcie_ops dw_pcie_ops = { +}; + static int artpec6_pcie_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -252,6 +255,7 @@ static int artpec6_pcie_probe(struct platform_device *pdev) return -ENOMEM; pci->dev = dev; + pci->ops = &dw_pcie_ops; artpec6_pcie->pci = pci; diff --git a/drivers/pci/dwc/pcie-designware-plat.c b/drivers/pci/dwc/pcie-designware-plat.c index b6c832ba39dd..f20d494922ab 100644 --- a/drivers/pci/dwc/pcie-designware-plat.c +++ b/drivers/pci/dwc/pcie-designware-plat.c @@ -86,6 +86,9 @@ static int dw_plat_add_pcie_port(struct pcie_port *pp, return 0; } +static const struct dw_pcie_ops dw_pcie_ops = { +}; + static int dw_plat_pcie_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -103,6 +106,7 @@ static int dw_plat_pcie_probe(struct platform_device *pdev) return -ENOMEM; pci->dev = dev; + pci->ops = &dw_pcie_ops; dw_plat_pcie->pci = pci; diff --git a/drivers/pci/dwc/pcie-hisi.c b/drivers/pci/dwc/pcie-hisi.c index fd66a3199db7..cf9d6a9d9fd4 100644 --- a/drivers/pci/dwc/pcie-hisi.c +++ b/drivers/pci/dwc/pcie-hisi.c @@ -380,9 +380,13 @@ struct pci_ecam_ops hisi_pcie_platform_ops = { static const struct of_device_id hisi_pcie_almost_ecam_of_match[] = { { - .compatible = "hisilicon,pcie-almost-ecam", + .compatible = "hisilicon,hip06-pcie-ecam", .data = (void *) &hisi_pcie_platform_ops, }, + { + .compatible = "hisilicon,hip07-pcie-ecam", + .data = (void *) &hisi_pcie_platform_ops, + }, {}, }; diff --git a/drivers/pci/host/pci-thunder-pem.c b/drivers/pci/host/pci-thunder-pem.c index 52b5bdccf5f0..6e031b522529 100644 --- a/drivers/pci/host/pci-thunder-pem.c +++ b/drivers/pci/host/pci-thunder-pem.c @@ -14,6 +14,7 @@ * Copyright (C) 2015 - 2016 Cavium, Inc. */ +#include <linux/bitfield.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/of_address.h> @@ -334,6 +335,49 @@ static int thunder_pem_init(struct device *dev, struct pci_config_window *cfg, #if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS) +#define PEM_RES_BASE 0x87e0c0000000UL +#define PEM_NODE_MASK GENMASK(45, 44) +#define PEM_INDX_MASK GENMASK(26, 24) +#define PEM_MIN_DOM_IN_NODE 4 +#define PEM_MAX_DOM_IN_NODE 10 + +static void thunder_pem_reserve_range(struct device *dev, int seg, + struct resource *r) +{ + resource_size_t start = r->start, end = r->end; + struct resource *res; + const char *regionid; + + regionid = kasprintf(GFP_KERNEL, "PEM RC:%d", seg); + if (!regionid) + return; + + res = request_mem_region(start, end - start + 1, regionid); + if (res) + res->flags &= ~IORESOURCE_BUSY; + else + kfree(regionid); + + dev_info(dev, "%pR %s reserved\n", r, + res ? "has been" : "could not be"); +} + +static void thunder_pem_legacy_fw(struct acpi_pci_root *root, + struct resource *res_pem) +{ + int node = acpi_get_node(root->device->handle); + int index; + + if (node == NUMA_NO_NODE) + node = 0; + + index = root->segment - PEM_MIN_DOM_IN_NODE; + index -= node * PEM_MAX_DOM_IN_NODE; + res_pem->start = PEM_RES_BASE | FIELD_PREP(PEM_NODE_MASK, node) | + FIELD_PREP(PEM_INDX_MASK, index); + res_pem->flags = IORESOURCE_MEM; +} + static int thunder_pem_acpi_init(struct pci_config_window *cfg) { struct device *dev = cfg->parent; @@ -346,10 +390,24 @@ static int thunder_pem_acpi_init(struct pci_config_window *cfg) if (!res_pem) return -ENOMEM; - ret = acpi_get_rc_resources(dev, "THRX0002", root->segment, res_pem); + ret = acpi_get_rc_resources(dev, "CAVA02B", root->segment, res_pem); + + /* + * If we fail to gather resources it means that we run with old + * FW where we need to calculate PEM-specific resources manually. + */ if (ret) { - dev_err(dev, "can't get rc base address\n"); - return ret; + thunder_pem_legacy_fw(root, res_pem); + /* + * Reserve 64K size PEM specific resources. The full 16M range + * size is required for thunder_pem_init() call. + */ + res_pem->end = res_pem->start + SZ_64K - 1; + thunder_pem_reserve_range(dev, root->segment, res_pem); + res_pem->end = res_pem->start + SZ_16M - 1; + + /* Reserve PCI configuration space as well. */ + thunder_pem_reserve_range(dev, root->segment, &cfg->res); } return thunder_pem_init(dev, cfg, res_pem); diff --git a/drivers/pci/host/pcie-iproc-bcma.c b/drivers/pci/host/pcie-iproc-bcma.c index bd4c9ec25edc..384c27e664fe 100644 --- a/drivers/pci/host/pcie-iproc-bcma.c +++ b/drivers/pci/host/pcie-iproc-bcma.c @@ -44,8 +44,7 @@ static int iproc_pcie_bcma_probe(struct bcma_device *bdev) { struct device *dev = &bdev->dev; struct iproc_pcie *pcie; - LIST_HEAD(res); - struct resource res_mem; + LIST_HEAD(resources); int ret; pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL); @@ -63,22 +62,23 @@ static int iproc_pcie_bcma_probe(struct bcma_device *bdev) pcie->base_addr = bdev->addr; - res_mem.start = bdev->addr_s[0]; - res_mem.end = bdev->addr_s[0] + SZ_128M - 1; - res_mem.name = "PCIe MEM space"; - res_mem.flags = IORESOURCE_MEM; - pci_add_resource(&res, &res_mem); + pcie->mem.start = bdev->addr_s[0]; + pcie->mem.end = bdev->addr_s[0] + SZ_128M - 1; + pcie->mem.name = "PCIe MEM space"; + pcie->mem.flags = IORESOURCE_MEM; + pci_add_resource(&resources, &pcie->mem); pcie->map_irq = iproc_pcie_bcma_map_irq; - ret = iproc_pcie_setup(pcie, &res); - if (ret) + ret = iproc_pcie_setup(pcie, &resources); + if (ret) { dev_err(dev, "PCIe controller setup failed\n"); - - pci_free_resource_list(&res); + pci_free_resource_list(&resources); + return ret; + } bcma_set_drvdata(bdev, pcie); - return ret; + return 0; } static void iproc_pcie_bcma_remove(struct bcma_device *bdev) diff --git a/drivers/pci/host/pcie-iproc-platform.c b/drivers/pci/host/pcie-iproc-platform.c index f4909bb0b2ad..8c6a327ca6cd 100644 --- a/drivers/pci/host/pcie-iproc-platform.c +++ b/drivers/pci/host/pcie-iproc-platform.c @@ -51,7 +51,7 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev) struct device_node *np = dev->of_node; struct resource reg; resource_size_t iobase = 0; - LIST_HEAD(res); + LIST_HEAD(resources); int ret; pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL); @@ -96,10 +96,10 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev) pcie->phy = NULL; } - ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &res, &iobase); + ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &resources, + &iobase); if (ret) { - dev_err(dev, - "unable to get PCI host bridge resources\n"); + dev_err(dev, "unable to get PCI host bridge resources\n"); return ret; } @@ -112,14 +112,15 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev) pcie->map_irq = of_irq_parse_and_map_pci; } - ret = iproc_pcie_setup(pcie, &res); - if (ret) + ret = iproc_pcie_setup(pcie, &resources); + if (ret) { dev_err(dev, "PCIe controller setup failed\n"); - - pci_free_resource_list(&res); + pci_free_resource_list(&resources); + return ret; + } platform_set_drvdata(pdev, pcie); - return ret; + return 0; } static int iproc_pcie_pltfm_remove(struct platform_device *pdev) diff --git a/drivers/pci/host/pcie-iproc.h b/drivers/pci/host/pcie-iproc.h index 04fed8e907f1..0bbe2ea44f3e 100644 --- a/drivers/pci/host/pcie-iproc.h +++ b/drivers/pci/host/pcie-iproc.h @@ -90,6 +90,7 @@ struct iproc_pcie { #ifdef CONFIG_ARM struct pci_sys_data sysdata; #endif + struct resource mem; struct pci_bus *root_bus; struct phy *phy; int (*map_irq)(const struct pci_dev *, u8, u8); diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index d69046537b75..32822b0d9cd0 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -2010,29 +2010,57 @@ out_err: return ERR_PTR(ret); } -static int pinctrl_create_and_start(struct pinctrl_dev *pctldev) +static int pinctrl_claim_hogs(struct pinctrl_dev *pctldev) { pctldev->p = create_pinctrl(pctldev->dev, pctldev); - if (!IS_ERR(pctldev->p)) { - kref_get(&pctldev->p->users); - pctldev->hog_default = - pinctrl_lookup_state(pctldev->p, PINCTRL_STATE_DEFAULT); - if (IS_ERR(pctldev->hog_default)) { - dev_dbg(pctldev->dev, - "failed to lookup the default state\n"); - } else { - if (pinctrl_select_state(pctldev->p, - pctldev->hog_default)) - dev_err(pctldev->dev, - "failed to select default state\n"); - } + if (PTR_ERR(pctldev->p) == -ENODEV) { + dev_dbg(pctldev->dev, "no hogs found\n"); - pctldev->hog_sleep = - pinctrl_lookup_state(pctldev->p, - PINCTRL_STATE_SLEEP); - if (IS_ERR(pctldev->hog_sleep)) - dev_dbg(pctldev->dev, - "failed to lookup the sleep state\n"); + return 0; + } + + if (IS_ERR(pctldev->p)) { + dev_err(pctldev->dev, "error claiming hogs: %li\n", + PTR_ERR(pctldev->p)); + + return PTR_ERR(pctldev->p); + } + + kref_get(&pctldev->p->users); + pctldev->hog_default = + pinctrl_lookup_state(pctldev->p, PINCTRL_STATE_DEFAULT); + if (IS_ERR(pctldev->hog_default)) { + dev_dbg(pctldev->dev, + "failed to lookup the default state\n"); + } else { + if (pinctrl_select_state(pctldev->p, + pctldev->hog_default)) + dev_err(pctldev->dev, + "failed to select default state\n"); + } + + pctldev->hog_sleep = + pinctrl_lookup_state(pctldev->p, + PINCTRL_STATE_SLEEP); + if (IS_ERR(pctldev->hog_sleep)) + dev_dbg(pctldev->dev, + "failed to lookup the sleep state\n"); + + return 0; +} + +int pinctrl_enable(struct pinctrl_dev *pctldev) +{ + int error; + + error = pinctrl_claim_hogs(pctldev); + if (error) { + dev_err(pctldev->dev, "could not claim hogs: %i\n", + error); + mutex_destroy(&pctldev->mutex); + kfree(pctldev); + + return error; } mutex_lock(&pinctrldev_list_mutex); @@ -2043,6 +2071,7 @@ static int pinctrl_create_and_start(struct pinctrl_dev *pctldev) return 0; } +EXPORT_SYMBOL_GPL(pinctrl_enable); /** * pinctrl_register() - register a pin controller device @@ -2065,25 +2094,30 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc, if (IS_ERR(pctldev)) return pctldev; - error = pinctrl_create_and_start(pctldev); - if (error) { - mutex_destroy(&pctldev->mutex); - kfree(pctldev); - + error = pinctrl_enable(pctldev); + if (error) return ERR_PTR(error); - } return pctldev; } EXPORT_SYMBOL_GPL(pinctrl_register); +/** + * pinctrl_register_and_init() - register and init pin controller device + * @pctldesc: descriptor for this pin controller + * @dev: parent device for this pin controller + * @driver_data: private pin controller data for this pin controller + * @pctldev: pin controller device + * + * Note that pinctrl_enable() still needs to be manually called after + * this once the driver is ready. + */ int pinctrl_register_and_init(struct pinctrl_desc *pctldesc, struct device *dev, void *driver_data, struct pinctrl_dev **pctldev) { struct pinctrl_dev *p; - int error; p = pinctrl_init_controller(pctldesc, dev, driver_data); if (IS_ERR(p)) @@ -2097,15 +2131,6 @@ int pinctrl_register_and_init(struct pinctrl_desc *pctldesc, */ *pctldev = p; - error = pinctrl_create_and_start(p); - if (error) { - mutex_destroy(&p->mutex); - kfree(p); - *pctldev = NULL; - - return error; - } - return 0; } EXPORT_SYMBOL_GPL(pinctrl_register_and_init); diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c index a7ace9e1ad81..74bd90dfd7b1 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx.c +++ b/drivers/pinctrl/freescale/pinctrl-imx.c @@ -790,7 +790,7 @@ int imx_pinctrl_probe(struct platform_device *pdev, dev_info(&pdev->dev, "initialized IMX pinctrl driver\n"); - return 0; + return pinctrl_enable(ipctl->pctl); free: imx_free_resources(ipctl); diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index f80134e3e0b6..9ff790174906 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -13,6 +13,7 @@ * published by the Free Software Foundation. */ +#include <linux/dmi.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -1524,10 +1525,31 @@ static void chv_gpio_irq_handler(struct irq_desc *desc) chained_irq_exit(chip, desc); } +/* + * Certain machines seem to hardcode Linux IRQ numbers in their ACPI + * tables. Since we leave GPIOs that are not capable of generating + * interrupts out of the irqdomain the numbering will be different and + * cause devices using the hardcoded IRQ numbers fail. In order not to + * break such machines we will only mask pins from irqdomain if the machine + * is not listed below. + */ +static const struct dmi_system_id chv_no_valid_mask[] = { + { + /* See https://bugzilla.kernel.org/show_bug.cgi?id=194945 */ + .ident = "Acer Chromebook (CYAN)", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"), + DMI_MATCH(DMI_PRODUCT_NAME, "Edgar"), + DMI_MATCH(DMI_BIOS_DATE, "05/21/2016"), + }, + } +}; + static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq) { const struct chv_gpio_pinrange *range; struct gpio_chip *chip = &pctrl->chip; + bool need_valid_mask = !dmi_check_system(chv_no_valid_mask); int ret, i, offset; *chip = chv_gpio_chip; @@ -1536,7 +1558,7 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq) chip->label = dev_name(pctrl->dev); chip->parent = pctrl->dev; chip->base = -1; - chip->irq_need_valid_mask = true; + chip->irq_need_valid_mask = need_valid_mask; ret = devm_gpiochip_add_data(pctrl->dev, chip, pctrl); if (ret) { @@ -1567,7 +1589,7 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq) intsel &= CHV_PADCTRL0_INTSEL_MASK; intsel >>= CHV_PADCTRL0_INTSEL_SHIFT; - if (intsel >= pctrl->community->nirqs) + if (need_valid_mask && intsel >= pctrl->community->nirqs) clear_bit(i, chip->irq_valid_mask); } diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c index 8b2d45e85bae..9c267dcda094 100644 --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c @@ -1781,7 +1781,7 @@ static int pcs_probe(struct platform_device *pdev) dev_info(pcs->dev, "%i pins at pa %p size %u\n", pcs->desc.npins, pcs->base, pcs->size); - return 0; + return pinctrl_enable(pcs->pctl); free: pcs_free_resources(pcs); diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c index f9b49967f512..63e51b56a22a 100644 --- a/drivers/pinctrl/samsung/pinctrl-exynos.c +++ b/drivers/pinctrl/samsung/pinctrl-exynos.c @@ -1468,82 +1468,82 @@ const struct samsung_pin_ctrl exynos5420_pin_ctrl[] __initconst = { /* pin banks of exynos5433 pin-controller - ALIVE */ static const struct samsung_pin_bank_data exynos5433_pin_banks0[] __initconst = { - EXYNOS_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00), - EXYNOS_PIN_BANK_EINTW(8, 0x020, "gpa1", 0x04), - EXYNOS_PIN_BANK_EINTW(8, 0x040, "gpa2", 0x08), - EXYNOS_PIN_BANK_EINTW(8, 0x060, "gpa3", 0x0c), - EXYNOS_PIN_BANK_EINTW_EXT(8, 0x020, "gpf1", 0x1004, 1), - EXYNOS_PIN_BANK_EINTW_EXT(4, 0x040, "gpf2", 0x1008, 1), - EXYNOS_PIN_BANK_EINTW_EXT(4, 0x060, "gpf3", 0x100c, 1), - EXYNOS_PIN_BANK_EINTW_EXT(8, 0x080, "gpf4", 0x1010, 1), - EXYNOS_PIN_BANK_EINTW_EXT(8, 0x0a0, "gpf5", 0x1014, 1), + EXYNOS5433_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00), + EXYNOS5433_PIN_BANK_EINTW(8, 0x020, "gpa1", 0x04), + EXYNOS5433_PIN_BANK_EINTW(8, 0x040, "gpa2", 0x08), + EXYNOS5433_PIN_BANK_EINTW(8, 0x060, "gpa3", 0x0c), + EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x020, "gpf1", 0x1004, 1), + EXYNOS5433_PIN_BANK_EINTW_EXT(4, 0x040, "gpf2", 0x1008, 1), + EXYNOS5433_PIN_BANK_EINTW_EXT(4, 0x060, "gpf3", 0x100c, 1), + EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x080, "gpf4", 0x1010, 1), + EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x0a0, "gpf5", 0x1014, 1), }; /* pin banks of exynos5433 pin-controller - AUD */ static const struct samsung_pin_bank_data exynos5433_pin_banks1[] __initconst = { - EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00), - EXYNOS_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04), + EXYNOS5433_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00), + EXYNOS5433_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04), }; /* pin banks of exynos5433 pin-controller - CPIF */ static const struct samsung_pin_bank_data exynos5433_pin_banks2[] __initconst = { - EXYNOS_PIN_BANK_EINTG(2, 0x000, "gpv6", 0x00), + EXYNOS5433_PIN_BANK_EINTG(2, 0x000, "gpv6", 0x00), }; /* pin banks of exynos5433 pin-controller - eSE */ static const struct samsung_pin_bank_data exynos5433_pin_banks3[] __initconst = { - EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj2", 0x00), + EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj2", 0x00), }; /* pin banks of exynos5433 pin-controller - FINGER */ static const struct samsung_pin_bank_data exynos5433_pin_banks4[] __initconst = { - EXYNOS_PIN_BANK_EINTG(4, 0x000, "gpd5", 0x00), + EXYNOS5433_PIN_BANK_EINTG(4, 0x000, "gpd5", 0x00), }; /* pin banks of exynos5433 pin-controller - FSYS */ static const struct samsung_pin_bank_data exynos5433_pin_banks5[] __initconst = { - EXYNOS_PIN_BANK_EINTG(6, 0x000, "gph1", 0x00), - EXYNOS_PIN_BANK_EINTG(7, 0x020, "gpr4", 0x04), - EXYNOS_PIN_BANK_EINTG(5, 0x040, "gpr0", 0x08), - EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpr1", 0x0c), - EXYNOS_PIN_BANK_EINTG(2, 0x080, "gpr2", 0x10), - EXYNOS_PIN_BANK_EINTG(8, 0x0a0, "gpr3", 0x14), + EXYNOS5433_PIN_BANK_EINTG(6, 0x000, "gph1", 0x00), + EXYNOS5433_PIN_BANK_EINTG(7, 0x020, "gpr4", 0x04), + EXYNOS5433_PIN_BANK_EINTG(5, 0x040, "gpr0", 0x08), + EXYNOS5433_PIN_BANK_EINTG(8, 0x060, "gpr1", 0x0c), + EXYNOS5433_PIN_BANK_EINTG(2, 0x080, "gpr2", 0x10), + EXYNOS5433_PIN_BANK_EINTG(8, 0x0a0, "gpr3", 0x14), }; /* pin banks of exynos5433 pin-controller - IMEM */ static const struct samsung_pin_bank_data exynos5433_pin_banks6[] __initconst = { - EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpf0", 0x00), + EXYNOS5433_PIN_BANK_EINTG(8, 0x000, "gpf0", 0x00), }; /* pin banks of exynos5433 pin-controller - NFC */ static const struct samsung_pin_bank_data exynos5433_pin_banks7[] __initconst = { - EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj0", 0x00), + EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj0", 0x00), }; /* pin banks of exynos5433 pin-controller - PERIC */ static const struct samsung_pin_bank_data exynos5433_pin_banks8[] __initconst = { - EXYNOS_PIN_BANK_EINTG(6, 0x000, "gpv7", 0x00), - EXYNOS_PIN_BANK_EINTG(5, 0x020, "gpb0", 0x04), - EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpc0", 0x08), - EXYNOS_PIN_BANK_EINTG(2, 0x060, "gpc1", 0x0c), - EXYNOS_PIN_BANK_EINTG(6, 0x080, "gpc2", 0x10), - EXYNOS_PIN_BANK_EINTG(8, 0x0a0, "gpc3", 0x14), - EXYNOS_PIN_BANK_EINTG(2, 0x0c0, "gpg0", 0x18), - EXYNOS_PIN_BANK_EINTG(4, 0x0e0, "gpd0", 0x1c), - EXYNOS_PIN_BANK_EINTG(6, 0x100, "gpd1", 0x20), - EXYNOS_PIN_BANK_EINTG(8, 0x120, "gpd2", 0x24), - EXYNOS_PIN_BANK_EINTG(5, 0x140, "gpd4", 0x28), - EXYNOS_PIN_BANK_EINTG(2, 0x160, "gpd8", 0x2c), - EXYNOS_PIN_BANK_EINTG(7, 0x180, "gpd6", 0x30), - EXYNOS_PIN_BANK_EINTG(3, 0x1a0, "gpd7", 0x34), - EXYNOS_PIN_BANK_EINTG(5, 0x1c0, "gpg1", 0x38), - EXYNOS_PIN_BANK_EINTG(2, 0x1e0, "gpg2", 0x3c), - EXYNOS_PIN_BANK_EINTG(8, 0x200, "gpg3", 0x40), + EXYNOS5433_PIN_BANK_EINTG(6, 0x000, "gpv7", 0x00), + EXYNOS5433_PIN_BANK_EINTG(5, 0x020, "gpb0", 0x04), + EXYNOS5433_PIN_BANK_EINTG(8, 0x040, "gpc0", 0x08), + EXYNOS5433_PIN_BANK_EINTG(2, 0x060, "gpc1", 0x0c), + EXYNOS5433_PIN_BANK_EINTG(6, 0x080, "gpc2", 0x10), + EXYNOS5433_PIN_BANK_EINTG(8, 0x0a0, "gpc3", 0x14), + EXYNOS5433_PIN_BANK_EINTG(2, 0x0c0, "gpg0", 0x18), + EXYNOS5433_PIN_BANK_EINTG(4, 0x0e0, "gpd0", 0x1c), + EXYNOS5433_PIN_BANK_EINTG(6, 0x100, "gpd1", 0x20), + EXYNOS5433_PIN_BANK_EINTG(8, 0x120, "gpd2", 0x24), + EXYNOS5433_PIN_BANK_EINTG(5, 0x140, "gpd4", 0x28), + EXYNOS5433_PIN_BANK_EINTG(2, 0x160, "gpd8", 0x2c), + EXYNOS5433_PIN_BANK_EINTG(7, 0x180, "gpd6", 0x30), + EXYNOS5433_PIN_BANK_EINTG(3, 0x1a0, "gpd7", 0x34), + EXYNOS5433_PIN_BANK_EINTG(5, 0x1c0, "gpg1", 0x38), + EXYNOS5433_PIN_BANK_EINTG(2, 0x1e0, "gpg2", 0x3c), + EXYNOS5433_PIN_BANK_EINTG(8, 0x200, "gpg3", 0x40), }; /* pin banks of exynos5433 pin-controller - TOUCH */ static const struct samsung_pin_bank_data exynos5433_pin_banks9[] __initconst = { - EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00), + EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00), }; /* diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.h b/drivers/pinctrl/samsung/pinctrl-exynos.h index a473092fb8d2..cd046eb7d705 100644 --- a/drivers/pinctrl/samsung/pinctrl-exynos.h +++ b/drivers/pinctrl/samsung/pinctrl-exynos.h @@ -79,17 +79,6 @@ .name = id \ } -#define EXYNOS_PIN_BANK_EINTW_EXT(pins, reg, id, offs, pctl_idx) \ - { \ - .type = &bank_type_alive, \ - .pctl_offset = reg, \ - .nr_pins = pins, \ - .eint_type = EINT_TYPE_WKUP, \ - .eint_offset = offs, \ - .name = id, \ - .pctl_res_idx = pctl_idx, \ - } \ - #define EXYNOS5433_PIN_BANK_EINTG(pins, reg, id, offs) \ { \ .type = &exynos5433_bank_type_off, \ diff --git a/drivers/pinctrl/sh-pfc/pinctrl.c b/drivers/pinctrl/sh-pfc/pinctrl.c index 08150a321be6..a70157f0acf4 100644 --- a/drivers/pinctrl/sh-pfc/pinctrl.c +++ b/drivers/pinctrl/sh-pfc/pinctrl.c @@ -816,6 +816,13 @@ int sh_pfc_register_pinctrl(struct sh_pfc *pfc) pmx->pctl_desc.pins = pmx->pins; pmx->pctl_desc.npins = pfc->info->nr_pins; - return devm_pinctrl_register_and_init(pfc->dev, &pmx->pctl_desc, pmx, - &pmx->pctl); + ret = devm_pinctrl_register_and_init(pfc->dev, &pmx->pctl_desc, pmx, + &pmx->pctl); + if (ret) { + dev_err(pfc->dev, "could not register: %i\n", ret); + + return ret; + } + + return pinctrl_enable(pmx->pctl); } diff --git a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c index 717e3404900c..362c50918c13 100644 --- a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c +++ b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c @@ -893,6 +893,8 @@ static int ti_iodelay_probe(struct platform_device *pdev) platform_set_drvdata(pdev, iod); + return pinctrl_enable(iod->pctl); + exit_out: of_node_put(np); return ret; diff --git a/drivers/pwm/pwm-lpss-pci.c b/drivers/pwm/pwm-lpss-pci.c index 053088b9b66e..c1527cb645be 100644 --- a/drivers/pwm/pwm-lpss-pci.c +++ b/drivers/pwm/pwm-lpss-pci.c @@ -36,6 +36,14 @@ static const struct pwm_lpss_boardinfo pwm_lpss_bxt_info = { .clk_rate = 19200000, .npwm = 4, .base_unit_bits = 22, + .bypass = true, +}; + +/* Tangier */ +static const struct pwm_lpss_boardinfo pwm_lpss_tng_info = { + .clk_rate = 19200000, + .npwm = 4, + .base_unit_bits = 22, }; static int pwm_lpss_probe_pci(struct pci_dev *pdev, @@ -97,7 +105,7 @@ static const struct pci_device_id pwm_lpss_pci_ids[] = { { PCI_VDEVICE(INTEL, 0x0ac8), (unsigned long)&pwm_lpss_bxt_info}, { PCI_VDEVICE(INTEL, 0x0f08), (unsigned long)&pwm_lpss_byt_info}, { PCI_VDEVICE(INTEL, 0x0f09), (unsigned long)&pwm_lpss_byt_info}, - { PCI_VDEVICE(INTEL, 0x11a5), (unsigned long)&pwm_lpss_bxt_info}, + { PCI_VDEVICE(INTEL, 0x11a5), (unsigned long)&pwm_lpss_tng_info}, { PCI_VDEVICE(INTEL, 0x1ac8), (unsigned long)&pwm_lpss_bxt_info}, { PCI_VDEVICE(INTEL, 0x2288), (unsigned long)&pwm_lpss_bsw_info}, { PCI_VDEVICE(INTEL, 0x2289), (unsigned long)&pwm_lpss_bsw_info}, diff --git a/drivers/pwm/pwm-lpss-platform.c b/drivers/pwm/pwm-lpss-platform.c index b22b6fdadb9a..5d6ed1507d29 100644 --- a/drivers/pwm/pwm-lpss-platform.c +++ b/drivers/pwm/pwm-lpss-platform.c @@ -37,6 +37,7 @@ static const struct pwm_lpss_boardinfo pwm_lpss_bxt_info = { .clk_rate = 19200000, .npwm = 4, .base_unit_bits = 22, + .bypass = true, }; static int pwm_lpss_probe_platform(struct platform_device *pdev) diff --git a/drivers/pwm/pwm-lpss.c b/drivers/pwm/pwm-lpss.c index 689d2c1cbead..8db0d40ccacd 100644 --- a/drivers/pwm/pwm-lpss.c +++ b/drivers/pwm/pwm-lpss.c @@ -57,7 +57,7 @@ static inline void pwm_lpss_write(const struct pwm_device *pwm, u32 value) writel(value, lpwm->regs + pwm->hwpwm * PWM_SIZE + PWM); } -static int pwm_lpss_update(struct pwm_device *pwm) +static int pwm_lpss_wait_for_update(struct pwm_device *pwm) { struct pwm_lpss_chip *lpwm = to_lpwm(pwm->chip); const void __iomem *addr = lpwm->regs + pwm->hwpwm * PWM_SIZE + PWM; @@ -65,8 +65,6 @@ static int pwm_lpss_update(struct pwm_device *pwm) u32 val; int err; - pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_SW_UPDATE); - /* * PWM Configuration register has SW_UPDATE bit that is set when a new * configuration is written to the register. The bit is automatically @@ -122,6 +120,12 @@ static void pwm_lpss_prepare(struct pwm_lpss_chip *lpwm, struct pwm_device *pwm, pwm_lpss_write(pwm, ctrl); } +static inline void pwm_lpss_cond_enable(struct pwm_device *pwm, bool cond) +{ + if (cond) + pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_ENABLE); +} + static int pwm_lpss_apply(struct pwm_chip *chip, struct pwm_device *pwm, struct pwm_state *state) { @@ -137,18 +141,21 @@ static int pwm_lpss_apply(struct pwm_chip *chip, struct pwm_device *pwm, return ret; } pwm_lpss_prepare(lpwm, pwm, state->duty_cycle, state->period); - ret = pwm_lpss_update(pwm); + pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_SW_UPDATE); + pwm_lpss_cond_enable(pwm, lpwm->info->bypass == false); + ret = pwm_lpss_wait_for_update(pwm); if (ret) { pm_runtime_put(chip->dev); return ret; } - pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_ENABLE); + pwm_lpss_cond_enable(pwm, lpwm->info->bypass == true); } else { ret = pwm_lpss_is_updating(pwm); if (ret) return ret; pwm_lpss_prepare(lpwm, pwm, state->duty_cycle, state->period); - return pwm_lpss_update(pwm); + pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_SW_UPDATE); + return pwm_lpss_wait_for_update(pwm); } } else if (pwm_is_enabled(pwm)) { pwm_lpss_write(pwm, pwm_lpss_read(pwm) & ~PWM_ENABLE); diff --git a/drivers/pwm/pwm-lpss.h b/drivers/pwm/pwm-lpss.h index c94cd7c2695d..98306bb02cfe 100644 --- a/drivers/pwm/pwm-lpss.h +++ b/drivers/pwm/pwm-lpss.h @@ -22,6 +22,7 @@ struct pwm_lpss_boardinfo { unsigned long clk_rate; unsigned int npwm; unsigned long base_unit_bits; + bool bypass; }; struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r, diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c index ef89df1f7336..744d56197286 100644 --- a/drivers/pwm/pwm-rockchip.c +++ b/drivers/pwm/pwm-rockchip.c @@ -191,6 +191,28 @@ static int rockchip_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, return 0; } +static int rockchip_pwm_enable(struct pwm_chip *chip, + struct pwm_device *pwm, + bool enable, + enum pwm_polarity polarity) +{ + struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip); + int ret; + + if (enable) { + ret = clk_enable(pc->clk); + if (ret) + return ret; + } + + pc->data->set_enable(chip, pwm, enable, polarity); + + if (!enable) + clk_disable(pc->clk); + + return 0; +} + static int rockchip_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, struct pwm_state *state) { @@ -207,22 +229,26 @@ static int rockchip_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, return ret; if (state->polarity != curstate.polarity && enabled) { - pc->data->set_enable(chip, pwm, false, state->polarity); + ret = rockchip_pwm_enable(chip, pwm, false, state->polarity); + if (ret) + goto out; enabled = false; } ret = rockchip_pwm_config(chip, pwm, state->duty_cycle, state->period); if (ret) { if (enabled != curstate.enabled) - pc->data->set_enable(chip, pwm, !enabled, - state->polarity); - + rockchip_pwm_enable(chip, pwm, !enabled, + state->polarity); goto out; } - if (state->enabled != enabled) - pc->data->set_enable(chip, pwm, state->enabled, - state->polarity); + if (state->enabled != enabled) { + ret = rockchip_pwm_enable(chip, pwm, state->enabled, + state->polarity); + if (ret) + goto out; + } /* * Update the state with the real hardware, which can differ a bit diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c index 9d19b9a62011..315a4be8dc1e 100644 --- a/drivers/rapidio/devices/tsi721.c +++ b/drivers/rapidio/devices/tsi721.c @@ -37,8 +37,8 @@ #include "tsi721.h" #ifdef DEBUG -u32 dbg_level; -module_param(dbg_level, uint, S_IWUSR | S_IRUGO); +u32 tsi_dbg_level; +module_param_named(dbg_level, tsi_dbg_level, uint, S_IWUSR | S_IRUGO); MODULE_PARM_DESC(dbg_level, "Debugging output level (default 0 = none)"); #endif diff --git a/drivers/rapidio/devices/tsi721.h b/drivers/rapidio/devices/tsi721.h index 5941437cbdd1..957eadc58150 100644 --- a/drivers/rapidio/devices/tsi721.h +++ b/drivers/rapidio/devices/tsi721.h @@ -40,11 +40,11 @@ enum { }; #ifdef DEBUG -extern u32 dbg_level; +extern u32 tsi_dbg_level; #define tsi_debug(level, dev, fmt, arg...) \ do { \ - if (DBG_##level & dbg_level) \ + if (DBG_##level & tsi_dbg_level) \ dev_dbg(dev, "%s: " fmt "\n", __func__, ##arg); \ } while (0) #else diff --git a/drivers/reset/core.c b/drivers/reset/core.c index f1e5e65388bb..cd739d2fa160 100644 --- a/drivers/reset/core.c +++ b/drivers/reset/core.c @@ -275,7 +275,7 @@ int reset_control_status(struct reset_control *rstc) } EXPORT_SYMBOL_GPL(reset_control_status); -static struct reset_control *__reset_control_get( +static struct reset_control *__reset_control_get_internal( struct reset_controller_dev *rcdev, unsigned int index, bool shared) { @@ -308,7 +308,7 @@ static struct reset_control *__reset_control_get( return rstc; } -static void __reset_control_put(struct reset_control *rstc) +static void __reset_control_put_internal(struct reset_control *rstc) { lockdep_assert_held(&reset_list_mutex); @@ -377,7 +377,7 @@ struct reset_control *__of_reset_control_get(struct device_node *node, } /* reset_list_mutex also protects the rcdev's reset_control list */ - rstc = __reset_control_get(rcdev, rstc_id, shared); + rstc = __reset_control_get_internal(rcdev, rstc_id, shared); mutex_unlock(&reset_list_mutex); @@ -385,6 +385,17 @@ struct reset_control *__of_reset_control_get(struct device_node *node, } EXPORT_SYMBOL_GPL(__of_reset_control_get); +struct reset_control *__reset_control_get(struct device *dev, const char *id, + int index, bool shared, bool optional) +{ + if (dev->of_node) + return __of_reset_control_get(dev->of_node, id, index, shared, + optional); + + return optional ? NULL : ERR_PTR(-EINVAL); +} +EXPORT_SYMBOL_GPL(__reset_control_get); + /** * reset_control_put - free the reset controller * @rstc: reset controller @@ -396,7 +407,7 @@ void reset_control_put(struct reset_control *rstc) return; mutex_lock(&reset_list_mutex); - __reset_control_put(rstc); + __reset_control_put_internal(rstc); mutex_unlock(&reset_list_mutex); } EXPORT_SYMBOL_GPL(reset_control_put); @@ -417,8 +428,7 @@ struct reset_control *__devm_reset_control_get(struct device *dev, if (!ptr) return ERR_PTR(-ENOMEM); - rstc = __of_reset_control_get(dev ? dev->of_node : NULL, - id, index, shared, optional); + rstc = __reset_control_get(dev, id, index, shared, optional); if (!IS_ERR(rstc)) { *ptr = rstc; devres_add(dev, ptr); diff --git a/drivers/s390/crypto/pkey_api.c b/drivers/s390/crypto/pkey_api.c index 40f1136f5568..058db724b5a2 100644 --- a/drivers/s390/crypto/pkey_api.c +++ b/drivers/s390/crypto/pkey_api.c @@ -572,6 +572,12 @@ int pkey_sec2protkey(u16 cardnr, u16 domain, rc = -EIO; goto out; } + if (prepcblk->ccp_rscode != 0) { + DEBUG_WARN( + "pkey_sec2protkey unwrap secure key warning, card response %d/%d\n", + (int) prepcblk->ccp_rtcode, + (int) prepcblk->ccp_rscode); + } /* process response cprb param block */ prepcblk->rpl_parmb = ((u8 *) prepcblk) + sizeof(struct CPRBX); @@ -761,9 +767,10 @@ out: } /* - * Fetch just the mkvp value via query_crypto_facility from adapter. + * Fetch the current and old mkvp values via + * query_crypto_facility from adapter. */ -static int fetch_mkvp(u16 cardnr, u16 domain, u64 *mkvp) +static int fetch_mkvp(u16 cardnr, u16 domain, u64 mkvp[2]) { int rc, found = 0; size_t rlen, vlen; @@ -779,9 +786,10 @@ static int fetch_mkvp(u16 cardnr, u16 domain, u64 *mkvp) rc = query_crypto_facility(cardnr, domain, "STATICSA", rarray, &rlen, varray, &vlen); if (rc == 0 && rlen > 8*8 && vlen > 184+8) { - if (rarray[64] == '2') { + if (rarray[8*8] == '2') { /* current master key state is valid */ - *mkvp = *((u64 *)(varray + 184)); + mkvp[0] = *((u64 *)(varray + 184)); + mkvp[1] = *((u64 *)(varray + 172)); found = 1; } } @@ -796,14 +804,14 @@ struct mkvp_info { struct list_head list; u16 cardnr; u16 domain; - u64 mkvp; + u64 mkvp[2]; }; /* a list with mkvp_info entries */ static LIST_HEAD(mkvp_list); static DEFINE_SPINLOCK(mkvp_list_lock); -static int mkvp_cache_fetch(u16 cardnr, u16 domain, u64 *mkvp) +static int mkvp_cache_fetch(u16 cardnr, u16 domain, u64 mkvp[2]) { int rc = -ENOENT; struct mkvp_info *ptr; @@ -812,7 +820,7 @@ static int mkvp_cache_fetch(u16 cardnr, u16 domain, u64 *mkvp) list_for_each_entry(ptr, &mkvp_list, list) { if (ptr->cardnr == cardnr && ptr->domain == domain) { - *mkvp = ptr->mkvp; + memcpy(mkvp, ptr->mkvp, 2 * sizeof(u64)); rc = 0; break; } @@ -822,7 +830,7 @@ static int mkvp_cache_fetch(u16 cardnr, u16 domain, u64 *mkvp) return rc; } -static void mkvp_cache_update(u16 cardnr, u16 domain, u64 mkvp) +static void mkvp_cache_update(u16 cardnr, u16 domain, u64 mkvp[2]) { int found = 0; struct mkvp_info *ptr; @@ -831,7 +839,7 @@ static void mkvp_cache_update(u16 cardnr, u16 domain, u64 mkvp) list_for_each_entry(ptr, &mkvp_list, list) { if (ptr->cardnr == cardnr && ptr->domain == domain) { - ptr->mkvp = mkvp; + memcpy(ptr->mkvp, mkvp, 2 * sizeof(u64)); found = 1; break; } @@ -844,7 +852,7 @@ static void mkvp_cache_update(u16 cardnr, u16 domain, u64 mkvp) } ptr->cardnr = cardnr; ptr->domain = domain; - ptr->mkvp = mkvp; + memcpy(ptr->mkvp, mkvp, 2 * sizeof(u64)); list_add(&ptr->list, &mkvp_list); } spin_unlock_bh(&mkvp_list_lock); @@ -888,8 +896,8 @@ int pkey_findcard(const struct pkey_seckey *seckey, struct secaeskeytoken *t = (struct secaeskeytoken *) seckey; struct zcrypt_device_matrix *device_matrix; u16 card, dom; - u64 mkvp; - int i, rc; + u64 mkvp[2]; + int i, rc, oi = -1; /* mkvp must not be zero */ if (t->mkvp == 0) @@ -910,14 +918,14 @@ int pkey_findcard(const struct pkey_seckey *seckey, device_matrix->device[i].functions & 0x04) { /* an enabled CCA Coprocessor card */ /* try cached mkvp */ - if (mkvp_cache_fetch(card, dom, &mkvp) == 0 && - t->mkvp == mkvp) { + if (mkvp_cache_fetch(card, dom, mkvp) == 0 && + t->mkvp == mkvp[0]) { if (!verify) break; /* verify: fetch mkvp from adapter */ - if (fetch_mkvp(card, dom, &mkvp) == 0) { + if (fetch_mkvp(card, dom, mkvp) == 0) { mkvp_cache_update(card, dom, mkvp); - if (t->mkvp == mkvp) + if (t->mkvp == mkvp[0]) break; } } @@ -936,14 +944,21 @@ int pkey_findcard(const struct pkey_seckey *seckey, card = AP_QID_CARD(device_matrix->device[i].qid); dom = AP_QID_QUEUE(device_matrix->device[i].qid); /* fresh fetch mkvp from adapter */ - if (fetch_mkvp(card, dom, &mkvp) == 0) { + if (fetch_mkvp(card, dom, mkvp) == 0) { mkvp_cache_update(card, dom, mkvp); - if (t->mkvp == mkvp) + if (t->mkvp == mkvp[0]) break; + if (t->mkvp == mkvp[1] && oi < 0) + oi = i; } } + if (i >= MAX_ZDEV_ENTRIES && oi >= 0) { + /* old mkvp matched, use this card then */ + card = AP_QID_CARD(device_matrix->device[oi].qid); + dom = AP_QID_QUEUE(device_matrix->device[oi].qid); + } } - if (i < MAX_ZDEV_ENTRIES) { + if (i < MAX_ZDEV_ENTRIES || oi >= 0) { if (pcardnr) *pcardnr = card; if (pdomain) diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index e7addea8741b..d9561e39c3b2 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -961,7 +961,8 @@ int qeth_bridgeport_query_ports(struct qeth_card *card, int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role); int qeth_bridgeport_an_set(struct qeth_card *card, int enable); int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int); -int qeth_get_elements_no(struct qeth_card *, struct sk_buff *, int); +int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb, + int extra_elems, int data_offset); int qeth_get_elements_for_frags(struct sk_buff *); int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *, struct sk_buff *, struct qeth_hdr *, int, int, int); diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 315d8a2db7c0..9a5f99ccb122 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -3837,6 +3837,7 @@ EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags); * @card: qeth card structure, to check max. elems. * @skb: SKB address * @extra_elems: extra elems needed, to check against max. + * @data_offset: range starts at skb->data + data_offset * * Returns the number of pages, and thus QDIO buffer elements, needed to cover * skb data, including linear part and fragments. Checks if the result plus @@ -3844,10 +3845,10 @@ EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags); * Note: extra_elems is not included in the returned result. */ int qeth_get_elements_no(struct qeth_card *card, - struct sk_buff *skb, int extra_elems) + struct sk_buff *skb, int extra_elems, int data_offset) { int elements = qeth_get_elements_for_range( - (addr_t)skb->data, + (addr_t)skb->data + data_offset, (addr_t)skb->data + skb_headlen(skb)) + qeth_get_elements_for_frags(skb); diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index bea483307618..af4e6a639fec 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -849,7 +849,7 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) * chaining we can not send long frag lists */ if ((card->info.type != QETH_CARD_TYPE_IQD) && - !qeth_get_elements_no(card, new_skb, 0)) { + !qeth_get_elements_no(card, new_skb, 0, 0)) { int lin_rc = skb_linearize(new_skb); if (card->options.performance_stats) { @@ -894,7 +894,8 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } } - elements = qeth_get_elements_no(card, new_skb, elements_needed); + elements = qeth_get_elements_no(card, new_skb, elements_needed, + (data_offset > 0) ? data_offset : 0); if (!elements) { if (data_offset >= 0) kmem_cache_free(qeth_core_header_cache, hdr); diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 06d0addcc058..653f0fb76573 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -2609,17 +2609,13 @@ static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card, char daddr[16]; struct af_iucv_trans_hdr *iucv_hdr; - skb_pull(skb, 14); - card->dev->header_ops->create(skb, card->dev, 0, - card->dev->dev_addr, card->dev->dev_addr, - card->dev->addr_len); - skb_pull(skb, 14); - iucv_hdr = (struct af_iucv_trans_hdr *)skb->data; memset(hdr, 0, sizeof(struct qeth_hdr)); hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3; hdr->hdr.l3.ext_flags = 0; - hdr->hdr.l3.length = skb->len; + hdr->hdr.l3.length = skb->len - ETH_HLEN; hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST; + + iucv_hdr = (struct af_iucv_trans_hdr *) (skb->data + ETH_HLEN); memset(daddr, 0, sizeof(daddr)); daddr[0] = 0xfe; daddr[1] = 0x80; @@ -2823,10 +2819,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) if ((card->info.type == QETH_CARD_TYPE_IQD) && !skb_is_nonlinear(skb)) { new_skb = skb; - if (new_skb->protocol == ETH_P_AF_IUCV) - data_offset = 0; - else - data_offset = ETH_HLEN; + data_offset = ETH_HLEN; hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); if (!hdr) goto tx_drop; @@ -2867,7 +2860,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) */ if ((card->info.type != QETH_CARD_TYPE_IQD) && ((use_tso && !qeth_l3_get_elements_no_tso(card, new_skb, 1)) || - (!use_tso && !qeth_get_elements_no(card, new_skb, 0)))) { + (!use_tso && !qeth_get_elements_no(card, new_skb, 0, 0)))) { int lin_rc = skb_linearize(new_skb); if (card->options.performance_stats) { @@ -2909,7 +2902,8 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) elements = use_tso ? qeth_l3_get_elements_no_tso(card, new_skb, hdr_elements) : - qeth_get_elements_no(card, new_skb, hdr_elements); + qeth_get_elements_no(card, new_skb, hdr_elements, + (data_offset > 0) ? data_offset : 0); if (!elements) { if (data_offset >= 0) kmem_cache_free(qeth_core_header_cache, hdr); diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index d036a806f31c..d281492009fb 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -1690,9 +1690,6 @@ struct aac_dev #define aac_adapter_sync_cmd(dev, command, p1, p2, p3, p4, p5, p6, status, r1, r2, r3, r4) \ (dev)->a_ops.adapter_sync_cmd(dev, command, p1, p2, p3, p4, p5, p6, status, r1, r2, r3, r4) -#define aac_adapter_check_health(dev) \ - (dev)->a_ops.adapter_check_health(dev) - #define aac_adapter_restart(dev, bled, reset_type) \ ((dev)->a_ops.adapter_restart(dev, bled, reset_type)) @@ -2615,6 +2612,14 @@ static inline unsigned int cap_to_cyls(sector_t capacity, unsigned divisor) return capacity; } +static inline int aac_adapter_check_health(struct aac_dev *dev) +{ + if (unlikely(pci_channel_offline(dev->pdev))) + return -1; + + return (dev)->a_ops.adapter_check_health(dev); +} + /* SCp.phase values */ #define AAC_OWNER_MIDLEVEL 0x101 #define AAC_OWNER_LOWLEVEL 0x102 diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index a3ad04293487..1f4918355fdb 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1873,7 +1873,8 @@ int aac_check_health(struct aac_dev * aac) spin_unlock_irqrestore(&aac->fib_lock, flagv); if (BlinkLED < 0) { - printk(KERN_ERR "%s: Host adapter dead %d\n", aac->name, BlinkLED); + printk(KERN_ERR "%s: Host adapter is dead (or got a PCI error) %d\n", + aac->name, BlinkLED); goto out; } @@ -2056,7 +2057,6 @@ static int fillup_pools(struct aac_dev *dev, struct hw_fib **hw_fib_pool, { struct hw_fib **hw_fib_p; struct fib **fib_p; - int rcode = 1; hw_fib_p = hw_fib_pool; fib_p = fib_pool; @@ -2074,11 +2074,11 @@ static int fillup_pools(struct aac_dev *dev, struct hw_fib **hw_fib_pool, } } + /* + * Get the actual number of allocated fibs + */ num = hw_fib_p - hw_fib_pool; - if (!num) - rcode = 0; - - return rcode; + return num; } static void wakeup_fibctx_threads(struct aac_dev *dev, @@ -2186,7 +2186,6 @@ static void aac_process_events(struct aac_dev *dev) struct fib *fib; unsigned long flags; spinlock_t *t_lock; - unsigned int rcode; t_lock = dev->queues->queue[HostNormCmdQueue].lock; spin_lock_irqsave(t_lock, flags); @@ -2269,8 +2268,8 @@ static void aac_process_events(struct aac_dev *dev) * Fill up fib pointer pools with actual fibs * and hw_fibs */ - rcode = fillup_pools(dev, hw_fib_pool, fib_pool, num); - if (!rcode) + num = fillup_pools(dev, hw_fib_pool, fib_pool, num); + if (!num) goto free_mem; /* diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 48e200102221..c01b47e5b55a 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -113,7 +113,7 @@ struct alua_queue_data { #define ALUA_POLICY_SWITCH_ALL 1 static void alua_rtpg_work(struct work_struct *work); -static void alua_rtpg_queue(struct alua_port_group *pg, +static bool alua_rtpg_queue(struct alua_port_group *pg, struct scsi_device *sdev, struct alua_queue_data *qdata, bool force); static void alua_check(struct scsi_device *sdev, bool force); @@ -862,7 +862,13 @@ static void alua_rtpg_work(struct work_struct *work) kref_put(&pg->kref, release_port_group); } -static void alua_rtpg_queue(struct alua_port_group *pg, +/** + * alua_rtpg_queue() - cause RTPG to be submitted asynchronously + * + * Returns true if and only if alua_rtpg_work() will be called asynchronously. + * That function is responsible for calling @qdata->fn(). + */ +static bool alua_rtpg_queue(struct alua_port_group *pg, struct scsi_device *sdev, struct alua_queue_data *qdata, bool force) { @@ -870,8 +876,8 @@ static void alua_rtpg_queue(struct alua_port_group *pg, unsigned long flags; struct workqueue_struct *alua_wq = kaluad_wq; - if (!pg) - return; + if (WARN_ON_ONCE(!pg) || scsi_device_get(sdev)) + return false; spin_lock_irqsave(&pg->lock, flags); if (qdata) { @@ -884,14 +890,12 @@ static void alua_rtpg_queue(struct alua_port_group *pg, pg->flags |= ALUA_PG_RUN_RTPG; kref_get(&pg->kref); pg->rtpg_sdev = sdev; - scsi_device_get(sdev); start_queue = 1; } else if (!(pg->flags & ALUA_PG_RUN_RTPG) && force) { pg->flags |= ALUA_PG_RUN_RTPG; /* Do not queue if the worker is already running */ if (!(pg->flags & ALUA_PG_RUNNING)) { kref_get(&pg->kref); - sdev = NULL; start_queue = 1; } } @@ -900,13 +904,17 @@ static void alua_rtpg_queue(struct alua_port_group *pg, alua_wq = kaluad_sync_wq; spin_unlock_irqrestore(&pg->lock, flags); - if (start_queue && - !queue_delayed_work(alua_wq, &pg->rtpg_work, - msecs_to_jiffies(ALUA_RTPG_DELAY_MSECS))) { - if (sdev) - scsi_device_put(sdev); - kref_put(&pg->kref, release_port_group); + if (start_queue) { + if (queue_delayed_work(alua_wq, &pg->rtpg_work, + msecs_to_jiffies(ALUA_RTPG_DELAY_MSECS))) + sdev = NULL; + else + kref_put(&pg->kref, release_port_group); } + if (sdev) + scsi_device_put(sdev); + + return true; } /* @@ -1007,11 +1015,13 @@ static int alua_activate(struct scsi_device *sdev, mutex_unlock(&h->init_mutex); goto out; } - fn = NULL; rcu_read_unlock(); mutex_unlock(&h->init_mutex); - alua_rtpg_queue(pg, sdev, qdata, true); + if (alua_rtpg_queue(pg, sdev, qdata, true)) + fn = NULL; + else + err = SCSI_DH_DEV_OFFLINED; kref_put(&pg->kref, release_port_group); out: if (fn) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 0d0be7754a65..9d659aaace15 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -3885,6 +3885,7 @@ static int hpsa_update_device_info(struct ctlr_info *h, if (h->fw_support & MISC_FW_RAID_OFFLOAD_BASIC) hpsa_get_ioaccel_status(h, scsi3addr, this_device); volume_offline = hpsa_volume_offline(h, scsi3addr); + this_device->volume_offline = volume_offline; if (volume_offline == HPSA_LV_FAILED) { rc = HPSA_LV_FAILED; dev_err(&h->pdev->dev, diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index b29afafc2885..5d5e272fd815 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -6293,7 +6293,12 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, break; case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ case IPR_IOASA_IR_DUAL_IOA_DISABLED: - scsi_cmd->result |= (DID_PASSTHROUGH << 16); + /* + * exception: do not set DID_PASSTHROUGH on CHECK CONDITION + * so SCSI mid-layer and upper layers handle it accordingly. + */ + if (scsi_cmd->result != SAM_STAT_CHECK_CONDITION) + scsi_cmd->result |= (DID_PASSTHROUGH << 16); break; case IPR_IOASC_BUS_WAS_RESET: case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 763f012fdeca..87f5e694dbed 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -221,7 +221,7 @@ static unsigned int sas_ata_qc_issue(struct ata_queued_cmd *qc) task->num_scatter = qc->n_elem; } else { for_each_sg(qc->sg, sg, qc->n_elem, si) - xfer += sg->length; + xfer += sg_dma_len(sg); task->total_xfer_len = xfer; task->num_scatter = si; diff --git a/drivers/scsi/lpfc/lpfc_debugfs.h b/drivers/scsi/lpfc/lpfc_debugfs.h index c05f56c3023f..7b7d314af0e0 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.h +++ b/drivers/scsi/lpfc/lpfc_debugfs.h @@ -44,14 +44,6 @@ /* hbqinfo output buffer size */ #define LPFC_HBQINFO_SIZE 8192 -enum { - DUMP_FCP, - DUMP_NVME, - DUMP_MBX, - DUMP_ELS, - DUMP_NVMELS, -}; - /* nvmestat output buffer size */ #define LPFC_NVMESTAT_SIZE 8192 #define LPFC_NVMEKTIME_SIZE 8192 @@ -283,8 +275,22 @@ struct lpfc_idiag { struct lpfc_idiag_offset offset; void *ptr_private; }; + +#else + +#define lpfc_nvmeio_data(phba, fmt, arg...) \ + no_printk(fmt, ##arg) + #endif +enum { + DUMP_FCP, + DUMP_NVME, + DUMP_MBX, + DUMP_ELS, + DUMP_NVMELS, +}; + /* Mask for discovery_trace */ #define LPFC_DISC_TRC_ELS_CMD 0x1 /* Trace ELS commands */ #define LPFC_DISC_TRC_ELS_RSP 0x2 /* Trace ELS response */ diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 8d1c6897ca62..67827e397431 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -7955,7 +7955,8 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvPRLI++; - if (vport->port_state < LPFC_DISC_AUTH) { + if ((vport->port_state < LPFC_DISC_AUTH) && + (vport->fc_flag & FC_FABRIC)) { rjt_err = LSRJT_UNABLE_TPC; rjt_exp = LSEXP_NOTHING_MORE; break; diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c index f9aafe2a21e2..94434e621c33 100644 --- a/drivers/scsi/lpfc/lpfc_nvmet.c +++ b/drivers/scsi/lpfc/lpfc_nvmet.c @@ -558,7 +558,7 @@ lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport, container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req); struct lpfc_hba *phba = ctxp->phba; struct lpfc_iocbq *nvmewqeq; - int rc, id; + int rc; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS if (phba->ktime_on) { @@ -568,7 +568,7 @@ lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport, ctxp->ts_nvme_data = ktime_get_ns(); } if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) { - id = smp_processor_id(); + int id = smp_processor_id(); ctxp->cpu = id; if (id < LPFC_CHECK_CPU_CNT) phba->cpucheck_xmt_io[id]++; @@ -959,8 +959,8 @@ lpfc_nvmet_rcv_unsol_abort(struct lpfc_vport *vport, /* Respond with BA_RJT accordingly */ lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 0); - return 0; #endif + return 0; } void diff --git a/drivers/scsi/qedf/qedf_fip.c b/drivers/scsi/qedf/qedf_fip.c index ed58b9104f58..e10b91cc3c62 100644 --- a/drivers/scsi/qedf/qedf_fip.c +++ b/drivers/scsi/qedf/qedf_fip.c @@ -99,7 +99,8 @@ static void qedf_fcoe_process_vlan_resp(struct qedf_ctx *qedf, qedf_set_vlan_id(qedf, vid); /* Inform waiter that it's ok to call fcoe_ctlr_link up() */ - complete(&qedf->fipvlan_compl); + if (!completion_done(&qedf->fipvlan_compl)) + complete(&qedf->fipvlan_compl); } } diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 8e2a160490e6..cceddd995a4b 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -2803,6 +2803,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) atomic_set(&qedf->num_offloads, 0); qedf->stop_io_on_error = false; pci_set_drvdata(pdev, qedf); + init_completion(&qedf->fipvlan_compl); QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO, "QLogic FastLinQ FCoE Module qedf %s, " diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 8e3d92807cb8..92775a8b74b1 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -2007,6 +2007,7 @@ static void qedi_remove(struct pci_dev *pdev) static struct pci_device_id qedi_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165E) }, + { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8084) }, { 0 }, }; MODULE_DEVICE_TABLE(pci, qedi_pci_tbl); diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 41d5b09f7326..83d61d2142e9 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1160,8 +1160,13 @@ static inline uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha) { struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; + struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82; - return ((RD_REG_DWORD(®->host_status)) == ISP_REG_DISCONNECT); + if (IS_P3P_TYPE(ha)) + return ((RD_REG_DWORD(®82->host_int)) == ISP_REG_DISCONNECT); + else + return ((RD_REG_DWORD(®->host_status)) == + ISP_REG_DISCONNECT); } /************************************************************************** @@ -1651,7 +1656,8 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res) /* Don't abort commands in adapter during EEH * recovery as it's not accessible/responding. */ - if (GET_CMD_SP(sp) && !ha->flags.eeh_busy) { + if (GET_CMD_SP(sp) && !ha->flags.eeh_busy && + (sp->type == SRB_SCSI_CMD)) { /* Get a reference to the sp and drop the lock. * The reference ensures this sp->done() call * - and not the call in qla2xxx_eh_abort() - diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 4a20e6098f7c..abc391e00f7d 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1060,10 +1060,10 @@ int scsi_init_io(struct scsi_cmnd *cmd) struct scsi_device *sdev = cmd->device; struct request *rq = cmd->request; bool is_mq = (rq->mq_ctx != NULL); - int error; + int error = BLKPREP_KILL; if (WARN_ON_ONCE(!blk_rq_nr_phys_segments(rq))) - return -EINVAL; + goto err_exit; error = scsi_init_sgtable(rq, &cmd->sdb); if (error) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 8cf34a8e3eea..0dc95e102e69 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2179,6 +2179,22 @@ static void read_capacity_error(struct scsi_disk *sdkp, struct scsi_device *sdp, #define READ_CAPACITY_RETRIES_ON_RESET 10 +/* + * Ensure that we don't overflow sector_t when CONFIG_LBDAF is not set + * and the reported logical block size is bigger than 512 bytes. Note + * that last_sector is a u64 and therefore logical_to_sectors() is not + * applicable. + */ +static bool sd_addressable_capacity(u64 lba, unsigned int sector_size) +{ + u64 last_sector = (lba + 1ULL) << (ilog2(sector_size) - 9); + + if (sizeof(sector_t) == 4 && last_sector > U32_MAX) + return false; + + return true; +} + static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp, unsigned char *buffer) { @@ -2244,7 +2260,7 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp, return -ENODEV; } - if ((sizeof(sdkp->capacity) == 4) && (lba >= 0xffffffffULL)) { + if (!sd_addressable_capacity(lba, sector_size)) { sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a " "kernel compiled with support for large block " "devices.\n"); @@ -2333,7 +2349,7 @@ static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp, return sector_size; } - if ((sizeof(sdkp->capacity) == 4) && (lba == 0xffffffff)) { + if (!sd_addressable_capacity(lba, sector_size)) { sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a " "kernel compiled with support for large block " "devices.\n"); @@ -3033,7 +3049,8 @@ static int sd_revalidate_disk(struct gendisk *disk) q->limits.io_opt = logical_to_bytes(sdp, sdkp->opt_xfer_blocks); rw_max = logical_to_sectors(sdp, sdkp->opt_xfer_blocks); } else - rw_max = BLK_DEF_MAX_SECTORS; + rw_max = min_not_zero(logical_to_sectors(sdp, dev_max), + (sector_t)BLK_DEF_MAX_SECTORS); /* Combine with controller limits */ q->limits.max_sectors = min(rw_max, queue_max_hw_sectors(q)); diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 90ee9d926deb..504504beaa5e 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -996,6 +996,8 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) result = get_user(val, ip); if (result) return result; + if (val > SG_MAX_CDB_SIZE) + return -ENOMEM; sfp->next_cmd_len = (val > 0) ? val : 0; return 0; case SG_GET_VERSION_NUM: diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 0b29b9329b1c..a8f630213a1a 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -836,6 +836,7 @@ static void get_capabilities(struct scsi_cd *cd) unsigned char *buffer; struct scsi_mode_data data; struct scsi_sense_hdr sshdr; + unsigned int ms_len = 128; int rc, n; static const char *loadmech[] = @@ -862,10 +863,11 @@ static void get_capabilities(struct scsi_cd *cd) scsi_test_unit_ready(cd->device, SR_TIMEOUT, MAX_RETRIES, &sshdr); /* ask for mode page 0x2a */ - rc = scsi_mode_sense(cd->device, 0, 0x2a, buffer, 128, + rc = scsi_mode_sense(cd->device, 0, 0x2a, buffer, ms_len, SR_TIMEOUT, 3, &data, NULL); - if (!scsi_status_is_good(rc)) { + if (!scsi_status_is_good(rc) || data.length > ms_len || + data.header_length + data.block_descriptor_length > data.length) { /* failed, drive doesn't have capabilities mode page */ cd->cdi.speed = 1; cd->cdi.mask |= (CDC_CD_R | CDC_CD_RW | CDC_DVD_R | diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c index a72a4ba78125..8e5e6c04c035 100644 --- a/drivers/scsi/ufs/ufshcd-pltfrm.c +++ b/drivers/scsi/ufs/ufshcd-pltfrm.c @@ -309,8 +309,8 @@ int ufshcd_pltfrm_init(struct platform_device *pdev, mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); mmio_base = devm_ioremap_resource(dev, mem_res); - if (IS_ERR(*(void **)&mmio_base)) { - err = PTR_ERR(*(void **)&mmio_base); + if (IS_ERR(mmio_base)) { + err = PTR_ERR(mmio_base); goto out; } diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index e8c26e6e6237..096e95b911bd 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4662,8 +4662,6 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba, } if (ufshcd_is_clkscaling_supported(hba)) hba->clk_scaling.active_reqs--; - if (ufshcd_is_clkscaling_supported(hba)) - hba->clk_scaling.active_reqs--; } /* clear corresponding bits of completed commands */ diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c index 7cbad0d45b9c..6ba270e0494d 100644 --- a/drivers/staging/android/ashmem.c +++ b/drivers/staging/android/ashmem.c @@ -409,6 +409,7 @@ static int ashmem_mmap(struct file *file, struct vm_area_struct *vma) ret = PTR_ERR(vmfile); goto out; } + vmfile->f_mode |= FMODE_LSEEK; asma->file = vmfile; } get_file(asma->file); diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index a91802432f2f..e3f9ed3690b7 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -485,8 +485,7 @@ static void iscsit_get_rx_pdu(struct iscsi_conn *); int iscsit_queue_rsp(struct iscsi_conn *conn, struct iscsi_cmd *cmd) { - iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); - return 0; + return iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); } EXPORT_SYMBOL(iscsit_queue_rsp); diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index f30c27b83c5e..5798810197ec 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -1376,11 +1376,10 @@ static u32 lio_sess_get_initiator_sid( static int lio_queue_data_in(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); + struct iscsi_conn *conn = cmd->conn; cmd->i_state = ISTATE_SEND_DATAIN; - cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd); - - return 0; + return conn->conn_transport->iscsit_queue_data_in(conn, cmd); } static int lio_write_pending(struct se_cmd *se_cmd) @@ -1409,16 +1408,14 @@ static int lio_write_pending_status(struct se_cmd *se_cmd) static int lio_queue_status(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); + struct iscsi_conn *conn = cmd->conn; cmd->i_state = ISTATE_SEND_STATUS; if (cmd->se_cmd.scsi_status || cmd->sense_reason) { - iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); - return 0; + return iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state); } - cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd); - - return 0; + return conn->conn_transport->iscsit_queue_status(conn, cmd); } static void lio_queue_tm_rsp(struct se_cmd *se_cmd) diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c index e65bf78ceef3..fce627628200 100644 --- a/drivers/target/iscsi/iscsi_target_parameters.c +++ b/drivers/target/iscsi/iscsi_target_parameters.c @@ -782,22 +782,6 @@ static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param) if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) SET_PSTATE_REPLY_OPTIONAL(param); /* - * The GlobalSAN iSCSI Initiator for MacOSX does - * not respond to MaxBurstLength, FirstBurstLength, - * DefaultTime2Wait or DefaultTime2Retain parameter keys. - * So, we set them to 'reply optional' here, and assume the - * the defaults from iscsi_parameters.h if the initiator - * is not RFC compliant and the keys are not negotiated. - */ - if (!strcmp(param->name, MAXBURSTLENGTH)) - SET_PSTATE_REPLY_OPTIONAL(param); - if (!strcmp(param->name, FIRSTBURSTLENGTH)) - SET_PSTATE_REPLY_OPTIONAL(param); - if (!strcmp(param->name, DEFAULTTIME2WAIT)) - SET_PSTATE_REPLY_OPTIONAL(param); - if (!strcmp(param->name, DEFAULTTIME2RETAIN)) - SET_PSTATE_REPLY_OPTIONAL(param); - /* * Required for gPXE iSCSI boot client */ if (!strcmp(param->name, MAXCONNECTIONS)) diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index 5041a9c8bdcb..7d3e2fcc26a0 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -567,7 +567,7 @@ static void iscsit_remove_cmd_from_immediate_queue( } } -void iscsit_add_cmd_to_response_queue( +int iscsit_add_cmd_to_response_queue( struct iscsi_cmd *cmd, struct iscsi_conn *conn, u8 state) @@ -578,7 +578,7 @@ void iscsit_add_cmd_to_response_queue( if (!qr) { pr_err("Unable to allocate memory for" " struct iscsi_queue_req\n"); - return; + return -ENOMEM; } INIT_LIST_HEAD(&qr->qr_list); qr->cmd = cmd; @@ -590,6 +590,7 @@ void iscsit_add_cmd_to_response_queue( spin_unlock_bh(&conn->response_queue_lock); wake_up(&conn->queues_wq); + return 0; } struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *conn) @@ -737,21 +738,23 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown) { struct se_cmd *se_cmd = NULL; int rc; + bool op_scsi = false; /* * Determine if a struct se_cmd is associated with * this struct iscsi_cmd. */ switch (cmd->iscsi_opcode) { case ISCSI_OP_SCSI_CMD: - se_cmd = &cmd->se_cmd; - __iscsit_free_cmd(cmd, true, shutdown); + op_scsi = true; /* * Fallthrough */ case ISCSI_OP_SCSI_TMFUNC: - rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown); - if (!rc && shutdown && se_cmd && se_cmd->se_sess) { - __iscsit_free_cmd(cmd, true, shutdown); + se_cmd = &cmd->se_cmd; + __iscsit_free_cmd(cmd, op_scsi, shutdown); + rc = transport_generic_free_cmd(se_cmd, shutdown); + if (!rc && shutdown && se_cmd->se_sess) { + __iscsit_free_cmd(cmd, op_scsi, shutdown); target_put_sess_cmd(se_cmd); } break; diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h index 8ff08856516a..9e4197af8708 100644 --- a/drivers/target/iscsi/iscsi_target_util.h +++ b/drivers/target/iscsi/iscsi_target_util.h @@ -31,7 +31,7 @@ extern int iscsit_find_cmd_for_recovery(struct iscsi_session *, struct iscsi_cmd struct iscsi_conn_recovery **, itt_t); extern void iscsit_add_cmd_to_immediate_queue(struct iscsi_cmd *, struct iscsi_conn *, u8); extern struct iscsi_queue_req *iscsit_get_cmd_from_immediate_queue(struct iscsi_conn *); -extern void iscsit_add_cmd_to_response_queue(struct iscsi_cmd *, struct iscsi_conn *, u8); +extern int iscsit_add_cmd_to_response_queue(struct iscsi_cmd *, struct iscsi_conn *, u8); extern struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *); extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_conn *); extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *); diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index fd7c16a7ca6e..fc4a9c303d55 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -197,8 +197,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd) /* * Set the ASYMMETRIC ACCESS State */ - buf[off++] |= (atomic_read( - &tg_pt_gp->tg_pt_gp_alua_access_state) & 0xff); + buf[off++] |= tg_pt_gp->tg_pt_gp_alua_access_state & 0xff; /* * Set supported ASYMMETRIC ACCESS State bits */ @@ -710,7 +709,7 @@ target_alua_state_check(struct se_cmd *cmd) spin_lock(&lun->lun_tg_pt_gp_lock); tg_pt_gp = lun->lun_tg_pt_gp; - out_alua_state = atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state); + out_alua_state = tg_pt_gp->tg_pt_gp_alua_access_state; nonop_delay_msecs = tg_pt_gp->tg_pt_gp_nonop_delay_msecs; // XXX: keeps using tg_pt_gp witout reference after unlock @@ -911,7 +910,7 @@ static int core_alua_write_tpg_metadata( } /* - * Called with tg_pt_gp->tg_pt_gp_md_mutex held + * Called with tg_pt_gp->tg_pt_gp_transition_mutex held */ static int core_alua_update_tpg_primary_metadata( struct t10_alua_tg_pt_gp *tg_pt_gp) @@ -934,7 +933,7 @@ static int core_alua_update_tpg_primary_metadata( "alua_access_state=0x%02x\n" "alua_access_status=0x%02x\n", tg_pt_gp->tg_pt_gp_id, - tg_pt_gp->tg_pt_gp_alua_pending_state, + tg_pt_gp->tg_pt_gp_alua_access_state, tg_pt_gp->tg_pt_gp_alua_access_status); snprintf(path, ALUA_METADATA_PATH_LEN, @@ -1013,93 +1012,41 @@ static void core_alua_queue_state_change_ua(struct t10_alua_tg_pt_gp *tg_pt_gp) spin_unlock(&tg_pt_gp->tg_pt_gp_lock); } -static void core_alua_do_transition_tg_pt_work(struct work_struct *work) -{ - struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(work, - struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work); - struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; - bool explicit = (tg_pt_gp->tg_pt_gp_alua_access_status == - ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG); - - /* - * Update the ALUA metadata buf that has been allocated in - * core_alua_do_port_transition(), this metadata will be written - * to struct file. - * - * Note that there is the case where we do not want to update the - * metadata when the saved metadata is being parsed in userspace - * when setting the existing port access state and access status. - * - * Also note that the failure to write out the ALUA metadata to - * struct file does NOT affect the actual ALUA transition. - */ - if (tg_pt_gp->tg_pt_gp_write_metadata) { - mutex_lock(&tg_pt_gp->tg_pt_gp_md_mutex); - core_alua_update_tpg_primary_metadata(tg_pt_gp); - mutex_unlock(&tg_pt_gp->tg_pt_gp_md_mutex); - } - /* - * Set the current primary ALUA access state to the requested new state - */ - atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, - tg_pt_gp->tg_pt_gp_alua_pending_state); - - pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu" - " from primary access state %s to %s\n", (explicit) ? "explicit" : - "implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item), - tg_pt_gp->tg_pt_gp_id, - core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_previous_state), - core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_pending_state)); - - core_alua_queue_state_change_ua(tg_pt_gp); - - spin_lock(&dev->t10_alua.tg_pt_gps_lock); - atomic_dec(&tg_pt_gp->tg_pt_gp_ref_cnt); - spin_unlock(&dev->t10_alua.tg_pt_gps_lock); - - if (tg_pt_gp->tg_pt_gp_transition_complete) - complete(tg_pt_gp->tg_pt_gp_transition_complete); -} - static int core_alua_do_transition_tg_pt( struct t10_alua_tg_pt_gp *tg_pt_gp, int new_state, int explicit) { - struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; - DECLARE_COMPLETION_ONSTACK(wait); + int prev_state; + mutex_lock(&tg_pt_gp->tg_pt_gp_transition_mutex); /* Nothing to be done here */ - if (atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state) == new_state) + if (tg_pt_gp->tg_pt_gp_alua_access_state == new_state) { + mutex_unlock(&tg_pt_gp->tg_pt_gp_transition_mutex); return 0; + } - if (explicit && new_state == ALUA_ACCESS_STATE_TRANSITION) + if (explicit && new_state == ALUA_ACCESS_STATE_TRANSITION) { + mutex_unlock(&tg_pt_gp->tg_pt_gp_transition_mutex); return -EAGAIN; - - /* - * Flush any pending transitions - */ - if (!explicit) - flush_work(&tg_pt_gp->tg_pt_gp_transition_work); + } /* * Save the old primary ALUA access state, and set the current state * to ALUA_ACCESS_STATE_TRANSITION. */ - atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, - ALUA_ACCESS_STATE_TRANSITION); + prev_state = tg_pt_gp->tg_pt_gp_alua_access_state; + tg_pt_gp->tg_pt_gp_alua_access_state = ALUA_ACCESS_STATE_TRANSITION; tg_pt_gp->tg_pt_gp_alua_access_status = (explicit) ? ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG : ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA; core_alua_queue_state_change_ua(tg_pt_gp); - if (new_state == ALUA_ACCESS_STATE_TRANSITION) + if (new_state == ALUA_ACCESS_STATE_TRANSITION) { + mutex_unlock(&tg_pt_gp->tg_pt_gp_transition_mutex); return 0; - - tg_pt_gp->tg_pt_gp_alua_previous_state = - atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state); - tg_pt_gp->tg_pt_gp_alua_pending_state = new_state; + } /* * Check for the optional ALUA primary state transition delay @@ -1108,19 +1055,36 @@ static int core_alua_do_transition_tg_pt( msleep_interruptible(tg_pt_gp->tg_pt_gp_trans_delay_msecs); /* - * Take a reference for workqueue item + * Set the current primary ALUA access state to the requested new state */ - spin_lock(&dev->t10_alua.tg_pt_gps_lock); - atomic_inc(&tg_pt_gp->tg_pt_gp_ref_cnt); - spin_unlock(&dev->t10_alua.tg_pt_gps_lock); + tg_pt_gp->tg_pt_gp_alua_access_state = new_state; - schedule_work(&tg_pt_gp->tg_pt_gp_transition_work); - if (explicit) { - tg_pt_gp->tg_pt_gp_transition_complete = &wait; - wait_for_completion(&wait); - tg_pt_gp->tg_pt_gp_transition_complete = NULL; + /* + * Update the ALUA metadata buf that has been allocated in + * core_alua_do_port_transition(), this metadata will be written + * to struct file. + * + * Note that there is the case where we do not want to update the + * metadata when the saved metadata is being parsed in userspace + * when setting the existing port access state and access status. + * + * Also note that the failure to write out the ALUA metadata to + * struct file does NOT affect the actual ALUA transition. + */ + if (tg_pt_gp->tg_pt_gp_write_metadata) { + core_alua_update_tpg_primary_metadata(tg_pt_gp); } + pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu" + " from primary access state %s to %s\n", (explicit) ? "explicit" : + "implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item), + tg_pt_gp->tg_pt_gp_id, + core_alua_dump_state(prev_state), + core_alua_dump_state(new_state)); + + core_alua_queue_state_change_ua(tg_pt_gp); + + mutex_unlock(&tg_pt_gp->tg_pt_gp_transition_mutex); return 0; } @@ -1685,14 +1649,12 @@ struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(struct se_device *dev, } INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_list); INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_lun_list); - mutex_init(&tg_pt_gp->tg_pt_gp_md_mutex); + mutex_init(&tg_pt_gp->tg_pt_gp_transition_mutex); spin_lock_init(&tg_pt_gp->tg_pt_gp_lock); atomic_set(&tg_pt_gp->tg_pt_gp_ref_cnt, 0); - INIT_WORK(&tg_pt_gp->tg_pt_gp_transition_work, - core_alua_do_transition_tg_pt_work); tg_pt_gp->tg_pt_gp_dev = dev; - atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, - ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED); + tg_pt_gp->tg_pt_gp_alua_access_state = + ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED; /* * Enable both explicit and implicit ALUA support by default */ @@ -1797,8 +1759,6 @@ void core_alua_free_tg_pt_gp( dev->t10_alua.alua_tg_pt_gps_counter--; spin_unlock(&dev->t10_alua.tg_pt_gps_lock); - flush_work(&tg_pt_gp->tg_pt_gp_transition_work); - /* * Allow a struct t10_alua_tg_pt_gp_member * referenced by * core_alua_get_tg_pt_gp_by_name() in @@ -1938,8 +1898,8 @@ ssize_t core_alua_show_tg_pt_gp_info(struct se_lun *lun, char *page) "Primary Access Status: %s\nTG Port Secondary Access" " State: %s\nTG Port Secondary Access Status: %s\n", config_item_name(tg_pt_ci), tg_pt_gp->tg_pt_gp_id, - core_alua_dump_state(atomic_read( - &tg_pt_gp->tg_pt_gp_alua_access_state)), + core_alua_dump_state( + tg_pt_gp->tg_pt_gp_alua_access_state), core_alua_dump_status( tg_pt_gp->tg_pt_gp_alua_access_status), atomic_read(&lun->lun_tg_pt_secondary_offline) ? diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 38b5025e4c7a..70657fd56440 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -2392,7 +2392,7 @@ static ssize_t target_tg_pt_gp_alua_access_state_show(struct config_item *item, char *page) { return sprintf(page, "%d\n", - atomic_read(&to_tg_pt_gp(item)->tg_pt_gp_alua_access_state)); + to_tg_pt_gp(item)->tg_pt_gp_alua_access_state); } static ssize_t target_tg_pt_gp_alua_access_state_store(struct config_item *item, diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index d8a16ca6baa5..d1e6cab8e3d3 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -92,6 +92,11 @@ static int target_fabric_mappedlun_link( pr_err("Source se_lun->lun_se_dev does not exist\n"); return -EINVAL; } + if (lun->lun_shutdown) { + pr_err("Unable to create mappedlun symlink because" + " lun->lun_shutdown=true\n"); + return -EINVAL; + } se_tpg = lun->lun_tpg; nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index 6fb191914f45..dfaef4d3b2d2 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -642,6 +642,8 @@ void core_tpg_remove_lun( */ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev); + lun->lun_shutdown = true; + core_clear_lun_from_tpg(lun, tpg); /* * Wait for any active I/O references to percpu se_lun->lun_ref to @@ -663,6 +665,8 @@ void core_tpg_remove_lun( } if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) hlist_del_rcu(&lun->link); + + lun->lun_shutdown = false; mutex_unlock(&tpg->tpg_lun_mutex); percpu_ref_exit(&lun->lun_ref); diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index b1a3cdb29468..a0cd56ee5fe9 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -64,8 +64,9 @@ struct kmem_cache *t10_alua_lba_map_cache; struct kmem_cache *t10_alua_lba_map_mem_cache; static void transport_complete_task_attr(struct se_cmd *cmd); +static int translate_sense_reason(struct se_cmd *cmd, sense_reason_t reason); static void transport_handle_queue_full(struct se_cmd *cmd, - struct se_device *dev); + struct se_device *dev, int err, bool write_pending); static int transport_put_cmd(struct se_cmd *cmd); static void target_complete_ok_work(struct work_struct *work); @@ -804,7 +805,8 @@ void target_qf_do_work(struct work_struct *work) if (cmd->t_state == TRANSPORT_COMPLETE_QF_WP) transport_write_pending_qf(cmd); - else if (cmd->t_state == TRANSPORT_COMPLETE_QF_OK) + else if (cmd->t_state == TRANSPORT_COMPLETE_QF_OK || + cmd->t_state == TRANSPORT_COMPLETE_QF_ERR) transport_complete_qf(cmd); } } @@ -1719,7 +1721,7 @@ void transport_generic_request_failure(struct se_cmd *cmd, } trace_target_cmd_complete(cmd); ret = cmd->se_tfo->queue_status(cmd); - if (ret == -EAGAIN || ret == -ENOMEM) + if (ret) goto queue_full; goto check_stop; default: @@ -1730,7 +1732,7 @@ void transport_generic_request_failure(struct se_cmd *cmd, } ret = transport_send_check_condition_and_sense(cmd, sense_reason, 0); - if (ret == -EAGAIN || ret == -ENOMEM) + if (ret) goto queue_full; check_stop: @@ -1739,8 +1741,7 @@ check_stop: return; queue_full: - cmd->t_state = TRANSPORT_COMPLETE_QF_OK; - transport_handle_queue_full(cmd, cmd->se_dev); + transport_handle_queue_full(cmd, cmd->se_dev, ret, false); } EXPORT_SYMBOL(transport_generic_request_failure); @@ -1977,13 +1978,29 @@ static void transport_complete_qf(struct se_cmd *cmd) int ret = 0; transport_complete_task_attr(cmd); + /* + * If a fabric driver ->write_pending() or ->queue_data_in() callback + * has returned neither -ENOMEM or -EAGAIN, assume it's fatal and + * the same callbacks should not be retried. Return CHECK_CONDITION + * if a scsi_status is not already set. + * + * If a fabric driver ->queue_status() has returned non zero, always + * keep retrying no matter what.. + */ + if (cmd->t_state == TRANSPORT_COMPLETE_QF_ERR) { + if (cmd->scsi_status) + goto queue_status; - if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) { - trace_target_cmd_complete(cmd); - ret = cmd->se_tfo->queue_status(cmd); - goto out; + cmd->se_cmd_flags |= SCF_EMULATED_TASK_SENSE; + cmd->scsi_status = SAM_STAT_CHECK_CONDITION; + cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER; + translate_sense_reason(cmd, TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE); + goto queue_status; } + if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) + goto queue_status; + switch (cmd->data_direction) { case DMA_FROM_DEVICE: if (cmd->scsi_status) @@ -2007,19 +2024,33 @@ queue_status: break; } -out: if (ret < 0) { - transport_handle_queue_full(cmd, cmd->se_dev); + transport_handle_queue_full(cmd, cmd->se_dev, ret, false); return; } transport_lun_remove_cmd(cmd); transport_cmd_check_stop_to_fabric(cmd); } -static void transport_handle_queue_full( - struct se_cmd *cmd, - struct se_device *dev) +static void transport_handle_queue_full(struct se_cmd *cmd, struct se_device *dev, + int err, bool write_pending) { + /* + * -EAGAIN or -ENOMEM signals retry of ->write_pending() and/or + * ->queue_data_in() callbacks from new process context. + * + * Otherwise for other errors, transport_complete_qf() will send + * CHECK_CONDITION via ->queue_status() instead of attempting to + * retry associated fabric driver data-transfer callbacks. + */ + if (err == -EAGAIN || err == -ENOMEM) { + cmd->t_state = (write_pending) ? TRANSPORT_COMPLETE_QF_WP : + TRANSPORT_COMPLETE_QF_OK; + } else { + pr_warn_ratelimited("Got unknown fabric queue status: %d\n", err); + cmd->t_state = TRANSPORT_COMPLETE_QF_ERR; + } + spin_lock_irq(&dev->qf_cmd_lock); list_add_tail(&cmd->se_qf_node, &cmd->se_dev->qf_cmd_list); atomic_inc_mb(&dev->dev_qf_count); @@ -2083,7 +2114,7 @@ static void target_complete_ok_work(struct work_struct *work) WARN_ON(!cmd->scsi_status); ret = transport_send_check_condition_and_sense( cmd, 0, 1); - if (ret == -EAGAIN || ret == -ENOMEM) + if (ret) goto queue_full; transport_lun_remove_cmd(cmd); @@ -2109,7 +2140,7 @@ static void target_complete_ok_work(struct work_struct *work) } else if (rc) { ret = transport_send_check_condition_and_sense(cmd, rc, 0); - if (ret == -EAGAIN || ret == -ENOMEM) + if (ret) goto queue_full; transport_lun_remove_cmd(cmd); @@ -2134,7 +2165,7 @@ queue_rsp: if (target_read_prot_action(cmd)) { ret = transport_send_check_condition_and_sense(cmd, cmd->pi_err, 0); - if (ret == -EAGAIN || ret == -ENOMEM) + if (ret) goto queue_full; transport_lun_remove_cmd(cmd); @@ -2144,7 +2175,7 @@ queue_rsp: trace_target_cmd_complete(cmd); ret = cmd->se_tfo->queue_data_in(cmd); - if (ret == -EAGAIN || ret == -ENOMEM) + if (ret) goto queue_full; break; case DMA_TO_DEVICE: @@ -2157,7 +2188,7 @@ queue_rsp: atomic_long_add(cmd->data_length, &cmd->se_lun->lun_stats.tx_data_octets); ret = cmd->se_tfo->queue_data_in(cmd); - if (ret == -EAGAIN || ret == -ENOMEM) + if (ret) goto queue_full; break; } @@ -2166,7 +2197,7 @@ queue_rsp: queue_status: trace_target_cmd_complete(cmd); ret = cmd->se_tfo->queue_status(cmd); - if (ret == -EAGAIN || ret == -ENOMEM) + if (ret) goto queue_full; break; default: @@ -2180,8 +2211,8 @@ queue_status: queue_full: pr_debug("Handling complete_ok QUEUE_FULL: se_cmd: %p," " data_direction: %d\n", cmd, cmd->data_direction); - cmd->t_state = TRANSPORT_COMPLETE_QF_OK; - transport_handle_queue_full(cmd, cmd->se_dev); + + transport_handle_queue_full(cmd, cmd->se_dev, ret, false); } void target_free_sgl(struct scatterlist *sgl, int nents) @@ -2449,18 +2480,14 @@ transport_generic_new_cmd(struct se_cmd *cmd) spin_unlock_irqrestore(&cmd->t_state_lock, flags); ret = cmd->se_tfo->write_pending(cmd); - if (ret == -EAGAIN || ret == -ENOMEM) + if (ret) goto queue_full; - /* fabric drivers should only return -EAGAIN or -ENOMEM as error */ - WARN_ON(ret); - - return (!ret) ? 0 : TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + return 0; queue_full: pr_debug("Handling write_pending QUEUE__FULL: se_cmd: %p\n", cmd); - cmd->t_state = TRANSPORT_COMPLETE_QF_WP; - transport_handle_queue_full(cmd, cmd->se_dev); + transport_handle_queue_full(cmd, cmd->se_dev, ret, true); return 0; } EXPORT_SYMBOL(transport_generic_new_cmd); @@ -2470,10 +2497,10 @@ static void transport_write_pending_qf(struct se_cmd *cmd) int ret; ret = cmd->se_tfo->write_pending(cmd); - if (ret == -EAGAIN || ret == -ENOMEM) { + if (ret) { pr_debug("Handling write_pending QUEUE__FULL: se_cmd: %p\n", cmd); - transport_handle_queue_full(cmd, cmd->se_dev); + transport_handle_queue_full(cmd, cmd->se_dev, ret, true); } } @@ -3011,6 +3038,8 @@ static int __transport_check_aborted_status(struct se_cmd *cmd, int send_status) __releases(&cmd->t_state_lock) __acquires(&cmd->t_state_lock) { + int ret; + assert_spin_locked(&cmd->t_state_lock); WARN_ON_ONCE(!irqs_disabled()); @@ -3034,7 +3063,9 @@ static int __transport_check_aborted_status(struct se_cmd *cmd, int send_status) trace_target_cmd_complete(cmd); spin_unlock_irq(&cmd->t_state_lock); - cmd->se_tfo->queue_status(cmd); + ret = cmd->se_tfo->queue_status(cmd); + if (ret) + transport_handle_queue_full(cmd, cmd->se_dev, ret, false); spin_lock_irq(&cmd->t_state_lock); return 1; @@ -3055,6 +3086,7 @@ EXPORT_SYMBOL(transport_check_aborted_status); void transport_send_task_abort(struct se_cmd *cmd) { unsigned long flags; + int ret; spin_lock_irqsave(&cmd->t_state_lock, flags); if (cmd->se_cmd_flags & (SCF_SENT_CHECK_CONDITION)) { @@ -3090,7 +3122,9 @@ send_abort: cmd->t_task_cdb[0], cmd->tag); trace_target_cmd_complete(cmd); - cmd->se_tfo->queue_status(cmd); + ret = cmd->se_tfo->queue_status(cmd); + if (ret) + transport_handle_queue_full(cmd, cmd->se_dev, ret, false); } static void target_tmr_work(struct work_struct *work) diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index c6874c38a10b..f615c3bbb73e 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -311,24 +311,50 @@ static void free_data_area(struct tcmu_dev *udev, struct tcmu_cmd *cmd) DATA_BLOCK_BITS); } -static void gather_data_area(struct tcmu_dev *udev, unsigned long *cmd_bitmap, - struct scatterlist *data_sg, unsigned int data_nents) +static void gather_data_area(struct tcmu_dev *udev, struct tcmu_cmd *cmd, + bool bidi) { + struct se_cmd *se_cmd = cmd->se_cmd; int i, block; int block_remaining = 0; void *from, *to; size_t copy_bytes, from_offset; - struct scatterlist *sg; + struct scatterlist *sg, *data_sg; + unsigned int data_nents; + DECLARE_BITMAP(bitmap, DATA_BLOCK_BITS); + + bitmap_copy(bitmap, cmd->data_bitmap, DATA_BLOCK_BITS); + + if (!bidi) { + data_sg = se_cmd->t_data_sg; + data_nents = se_cmd->t_data_nents; + } else { + uint32_t count; + + /* + * For bidi case, the first count blocks are for Data-Out + * buffer blocks, and before gathering the Data-In buffer + * the Data-Out buffer blocks should be discarded. + */ + count = DIV_ROUND_UP(se_cmd->data_length, DATA_BLOCK_SIZE); + while (count--) { + block = find_first_bit(bitmap, DATA_BLOCK_BITS); + clear_bit(block, bitmap); + } + + data_sg = se_cmd->t_bidi_data_sg; + data_nents = se_cmd->t_bidi_data_nents; + } for_each_sg(data_sg, sg, data_nents, i) { int sg_remaining = sg->length; to = kmap_atomic(sg_page(sg)) + sg->offset; while (sg_remaining > 0) { if (block_remaining == 0) { - block = find_first_bit(cmd_bitmap, + block = find_first_bit(bitmap, DATA_BLOCK_BITS); block_remaining = DATA_BLOCK_SIZE; - clear_bit(block, cmd_bitmap); + clear_bit(block, bitmap); } copy_bytes = min_t(size_t, sg_remaining, block_remaining); @@ -394,6 +420,27 @@ static bool is_ring_space_avail(struct tcmu_dev *udev, size_t cmd_size, size_t d return true; } +static inline size_t tcmu_cmd_get_data_length(struct tcmu_cmd *tcmu_cmd) +{ + struct se_cmd *se_cmd = tcmu_cmd->se_cmd; + size_t data_length = round_up(se_cmd->data_length, DATA_BLOCK_SIZE); + + if (se_cmd->se_cmd_flags & SCF_BIDI) { + BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents)); + data_length += round_up(se_cmd->t_bidi_data_sg->length, + DATA_BLOCK_SIZE); + } + + return data_length; +} + +static inline uint32_t tcmu_cmd_get_block_cnt(struct tcmu_cmd *tcmu_cmd) +{ + size_t data_length = tcmu_cmd_get_data_length(tcmu_cmd); + + return data_length / DATA_BLOCK_SIZE; +} + static sense_reason_t tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) { @@ -407,7 +454,7 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) uint32_t cmd_head; uint64_t cdb_off; bool copy_to_data_area; - size_t data_length; + size_t data_length = tcmu_cmd_get_data_length(tcmu_cmd); DECLARE_BITMAP(old_bitmap, DATA_BLOCK_BITS); if (test_bit(TCMU_DEV_BIT_BROKEN, &udev->flags)) @@ -421,8 +468,7 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) * expensive to tell how many regions are freed in the bitmap */ base_command_size = max(offsetof(struct tcmu_cmd_entry, - req.iov[se_cmd->t_bidi_data_nents + - se_cmd->t_data_nents]), + req.iov[tcmu_cmd_get_block_cnt(tcmu_cmd)]), sizeof(struct tcmu_cmd_entry)); command_size = base_command_size + round_up(scsi_command_size(se_cmd->t_task_cdb), TCMU_OP_ALIGN_SIZE); @@ -433,11 +479,6 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) mb = udev->mb_addr; cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */ - data_length = se_cmd->data_length; - if (se_cmd->se_cmd_flags & SCF_BIDI) { - BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents)); - data_length += se_cmd->t_bidi_data_sg->length; - } if ((command_size > (udev->cmdr_size / 2)) || data_length > udev->data_size) { pr_warn("TCMU: Request of size %zu/%zu is too big for %u/%zu " @@ -511,11 +552,14 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) entry->req.iov_dif_cnt = 0; /* Handle BIDI commands */ - iov_cnt = 0; - alloc_and_scatter_data_area(udev, se_cmd->t_bidi_data_sg, - se_cmd->t_bidi_data_nents, &iov, &iov_cnt, false); - entry->req.iov_bidi_cnt = iov_cnt; - + if (se_cmd->se_cmd_flags & SCF_BIDI) { + iov_cnt = 0; + iov++; + alloc_and_scatter_data_area(udev, se_cmd->t_bidi_data_sg, + se_cmd->t_bidi_data_nents, &iov, &iov_cnt, + false); + entry->req.iov_bidi_cnt = iov_cnt; + } /* cmd's data_bitmap is what changed in process */ bitmap_xor(tcmu_cmd->data_bitmap, old_bitmap, udev->data_bitmap, DATA_BLOCK_BITS); @@ -592,19 +636,11 @@ static void tcmu_handle_completion(struct tcmu_cmd *cmd, struct tcmu_cmd_entry * se_cmd->scsi_sense_length); free_data_area(udev, cmd); } else if (se_cmd->se_cmd_flags & SCF_BIDI) { - DECLARE_BITMAP(bitmap, DATA_BLOCK_BITS); - /* Get Data-In buffer before clean up */ - bitmap_copy(bitmap, cmd->data_bitmap, DATA_BLOCK_BITS); - gather_data_area(udev, bitmap, - se_cmd->t_bidi_data_sg, se_cmd->t_bidi_data_nents); + gather_data_area(udev, cmd, true); free_data_area(udev, cmd); } else if (se_cmd->data_direction == DMA_FROM_DEVICE) { - DECLARE_BITMAP(bitmap, DATA_BLOCK_BITS); - - bitmap_copy(bitmap, cmd->data_bitmap, DATA_BLOCK_BITS); - gather_data_area(udev, bitmap, - se_cmd->t_data_sg, se_cmd->t_data_nents); + gather_data_area(udev, cmd, false); free_data_area(udev, cmd); } else if (se_cmd->data_direction == DMA_TO_DEVICE) { free_data_area(udev, cmd); @@ -1196,11 +1232,6 @@ static ssize_t tcmu_cmd_time_out_store(struct config_item *item, const char *pag if (ret < 0) return ret; - if (!val) { - pr_err("Illegal value for cmd_time_out\n"); - return -EINVAL; - } - udev->cmd_time_out = val * MSEC_PER_SEC; return count; } diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index a65fb8197aec..0e3f529d50e9 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -128,9 +128,13 @@ config SERIAL_8250_PCI by the parport_serial driver, enabled with CONFIG_PARPORT_SERIAL. config SERIAL_8250_EXAR - tristate "8250/16550 PCI device support" - depends on SERIAL_8250_PCI + tristate "8250/16550 Exar/Commtech PCI/PCIe device support" + depends on SERIAL_8250_PCI default SERIAL_8250 + help + This builds support for XR17C1xx, XR17V3xx and some Commtech + 422x PCIe serial cards that are not covered by the more generic + SERIAL_8250_PCI option. config SERIAL_8250_HP300 tristate diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 56f92d7348bf..b0a377725d63 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -2452,18 +2452,37 @@ static void pl011_early_write(struct console *con, const char *s, unsigned n) uart_console_write(&dev->port, s, n, pl011_putc); } +/* + * On non-ACPI systems, earlycon is enabled by specifying + * "earlycon=pl011,<address>" on the kernel command line. + * + * On ACPI ARM64 systems, an "early" console is enabled via the SPCR table, + * by specifying only "earlycon" on the command line. Because it requires + * SPCR, the console starts after ACPI is parsed, which is later than a + * traditional early console. + * + * To get the traditional early console that starts before ACPI is parsed, + * specify the full "earlycon=pl011,<address>" option. + */ static int __init pl011_early_console_setup(struct earlycon_device *device, const char *opt) { if (!device->port.membase) return -ENODEV; - device->con->write = qdf2400_e44_present ? - qdf2400_e44_early_write : pl011_early_write; + /* On QDF2400 SOCs affected by Erratum 44, the "qdf2400_e44" must + * also be specified, e.g. "earlycon=pl011,<address>,qdf2400_e44". + */ + if (!strcmp(device->options, "qdf2400_e44")) + device->con->write = qdf2400_e44_early_write; + else + device->con->write = pl011_early_write; + return 0; } OF_EARLYCON_DECLARE(pl011, "arm,pl011", pl011_early_console_setup); OF_EARLYCON_DECLARE(pl011, "arm,sbsa-uart", pl011_early_console_setup); +EARLYCON_DECLARE(qdf2400_e44, pl011_early_console_setup); #else #define AMBA_CONSOLE NULL diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index dcebb28ffbc4..1f50a83ef958 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1951,6 +1951,11 @@ static void atmel_flush_buffer(struct uart_port *port) atmel_uart_writel(port, ATMEL_PDC_TCR, 0); atmel_port->pdc_tx.ofs = 0; } + /* + * in uart_flush_buffer(), the xmit circular buffer has just + * been cleared, so we have to reset tx_len accordingly. + */ + atmel_port->tx_len = 0; } /* @@ -2483,6 +2488,9 @@ static void atmel_console_write(struct console *co, const char *s, u_int count) pdc_tx = atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN; atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS); + /* Make sure that tx path is actually able to send characters */ + atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN); + uart_console_write(port, s, count, atmel_console_putchar); /* diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 6989b227d134..be94246b6fcc 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -1088,7 +1088,7 @@ static void mxs_auart_settermios(struct uart_port *u, AUART_LINECTRL_BAUD_DIV_MAX); baud_max = u->uartclk * 32 / AUART_LINECTRL_BAUD_DIV_MIN; baud = uart_get_baud_rate(u, termios, old, baud_min, baud_max); - div = u->uartclk * 32 / baud; + div = DIV_ROUND_CLOSEST(u->uartclk * 32, baud); } ctrl |= AUART_LINECTRL_BAUD_DIVFRAC(div & 0x3F); diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c index b0500a0a87b8..e4603b09863a 100644 --- a/drivers/tty/tty_ldisc.c +++ b/drivers/tty/tty_ldisc.c @@ -492,6 +492,41 @@ static void tty_ldisc_close(struct tty_struct *tty, struct tty_ldisc *ld) } /** + * tty_ldisc_restore - helper for tty ldisc change + * @tty: tty to recover + * @old: previous ldisc + * + * Restore the previous line discipline or N_TTY when a line discipline + * change fails due to an open error + */ + +static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old) +{ + struct tty_ldisc *new_ldisc; + int r; + + /* There is an outstanding reference here so this is safe */ + old = tty_ldisc_get(tty, old->ops->num); + WARN_ON(IS_ERR(old)); + tty->ldisc = old; + tty_set_termios_ldisc(tty, old->ops->num); + if (tty_ldisc_open(tty, old) < 0) { + tty_ldisc_put(old); + /* This driver is always present */ + new_ldisc = tty_ldisc_get(tty, N_TTY); + if (IS_ERR(new_ldisc)) + panic("n_tty: get"); + tty->ldisc = new_ldisc; + tty_set_termios_ldisc(tty, N_TTY); + r = tty_ldisc_open(tty, new_ldisc); + if (r < 0) + panic("Couldn't open N_TTY ldisc for " + "%s --- error %d.", + tty_name(tty), r); + } +} + +/** * tty_set_ldisc - set line discipline * @tty: the terminal to set * @ldisc: the line discipline @@ -504,7 +539,12 @@ static void tty_ldisc_close(struct tty_struct *tty, struct tty_ldisc *ld) int tty_set_ldisc(struct tty_struct *tty, int disc) { - int retval, old_disc; + int retval; + struct tty_ldisc *old_ldisc, *new_ldisc; + + new_ldisc = tty_ldisc_get(tty, disc); + if (IS_ERR(new_ldisc)) + return PTR_ERR(new_ldisc); tty_lock(tty); retval = tty_ldisc_lock(tty, 5 * HZ); @@ -517,8 +557,7 @@ int tty_set_ldisc(struct tty_struct *tty, int disc) } /* Check the no-op case */ - old_disc = tty->ldisc->ops->num; - if (old_disc == disc) + if (tty->ldisc->ops->num == disc) goto out; if (test_bit(TTY_HUPPED, &tty->flags)) { @@ -527,25 +566,34 @@ int tty_set_ldisc(struct tty_struct *tty, int disc) goto out; } - retval = tty_ldisc_reinit(tty, disc); + old_ldisc = tty->ldisc; + + /* Shutdown the old discipline. */ + tty_ldisc_close(tty, old_ldisc); + + /* Now set up the new line discipline. */ + tty->ldisc = new_ldisc; + tty_set_termios_ldisc(tty, disc); + + retval = tty_ldisc_open(tty, new_ldisc); if (retval < 0) { /* Back to the old one or N_TTY if we can't */ - if (tty_ldisc_reinit(tty, old_disc) < 0) { - pr_err("tty: TIOCSETD failed, reinitializing N_TTY\n"); - if (tty_ldisc_reinit(tty, N_TTY) < 0) { - /* At this point we have tty->ldisc == NULL. */ - pr_err("tty: reinitializing N_TTY failed\n"); - } - } + tty_ldisc_put(new_ldisc); + tty_ldisc_restore(tty, old_ldisc); } - if (tty->ldisc && tty->ldisc->ops->num != old_disc && - tty->ops->set_ldisc) { + if (tty->ldisc->ops->num != old_ldisc->ops->num && tty->ops->set_ldisc) { down_read(&tty->termios_rwsem); tty->ops->set_ldisc(tty); up_read(&tty->termios_rwsem); } + /* At this point we hold a reference to the new ldisc and a + reference to the old ldisc, or we hold two references to + the old ldisc (if it was restored as part of error cleanup + above). In either case, releasing a single reference from + the old ldisc is correct. */ + new_ldisc = old_ldisc; out: tty_ldisc_unlock(tty); @@ -553,6 +601,7 @@ out: already running */ tty_buffer_restart_work(tty->port); err: + tty_ldisc_put(new_ldisc); /* drop the extra reference */ tty_unlock(tty); return retval; } @@ -613,8 +662,10 @@ int tty_ldisc_reinit(struct tty_struct *tty, int disc) int retval; ld = tty_ldisc_get(tty, disc); - if (IS_ERR(ld)) + if (IS_ERR(ld)) { + BUG_ON(disc == N_TTY); return PTR_ERR(ld); + } if (tty->ldisc) { tty_ldisc_close(tty, tty->ldisc); @@ -626,8 +677,10 @@ int tty_ldisc_reinit(struct tty_struct *tty, int disc) tty_set_termios_ldisc(tty, disc); retval = tty_ldisc_open(tty, tty->ldisc); if (retval) { - tty_ldisc_put(tty->ldisc); - tty->ldisc = NULL; + if (!WARN_ON(disc == N_TTY)) { + tty_ldisc_put(tty->ldisc); + tty->ldisc = NULL; + } } return retval; } diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c index c5f0fc906136..8af8d9542663 100644 --- a/drivers/tty/vt/keyboard.c +++ b/drivers/tty/vt/keyboard.c @@ -28,7 +28,6 @@ #include <linux/module.h> #include <linux/sched/signal.h> #include <linux/sched/debug.h> -#include <linux/sched/debug.h> #include <linux/tty.h> #include <linux/tty_flip.h> #include <linux/mm.h> diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 612fab6e54fb..79bdca5cb9c7 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -520,8 +520,10 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) */ tbuf_size = max_t(u16, sizeof(struct usb_hub_descriptor), wLength); tbuf = kzalloc(tbuf_size, GFP_KERNEL); - if (!tbuf) - return -ENOMEM; + if (!tbuf) { + status = -ENOMEM; + goto err_alloc; + } bufp = tbuf; @@ -734,6 +736,7 @@ error: } kfree(tbuf); + err_alloc: /* any errors get returned through the urb completion */ spin_lock_irq(&hcd_root_hub_lock); diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index d2351139342f..a82e2bd5ea34 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -373,7 +373,7 @@ static void bot_cleanup_old_alt(struct f_uas *fu) usb_ep_free_request(fu->ep_in, fu->bot_req_in); usb_ep_free_request(fu->ep_out, fu->bot_req_out); usb_ep_free_request(fu->ep_out, fu->cmd.req); - usb_ep_free_request(fu->ep_out, fu->bot_status.req); + usb_ep_free_request(fu->ep_in, fu->bot_status.req); kfree(fu->cmd.buf); diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index bd02a6cd8e2c..6ed468fa7d5e 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -344,6 +344,7 @@ MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match); static struct platform_driver usb_xhci_driver = { .probe = xhci_plat_probe, .remove = xhci_plat_remove, + .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "xhci-hcd", .pm = DEV_PM_OPS, diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index d9936c771fa0..a3309aa02993 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1989,6 +1989,9 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td, case TRB_NORMAL: td->urb->actual_length = requested - remaining; goto finish_td; + case TRB_STATUS: + td->urb->actual_length = requested; + goto finish_td; default: xhci_warn(xhci, "WARN: unexpected TRB Type %d\n", trb_type); diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 50aee8b7718b..953fd8f62df0 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1477,6 +1477,7 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) struct xhci_ring *ep_ring; struct xhci_virt_ep *ep; struct xhci_command *command; + struct xhci_virt_device *vdev; xhci = hcd_to_xhci(hcd); spin_lock_irqsave(&xhci->lock, flags); @@ -1485,15 +1486,27 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) /* Make sure the URB hasn't completed or been unlinked already */ ret = usb_hcd_check_unlink_urb(hcd, urb, status); - if (ret || !urb->hcpriv) + if (ret) goto done; + + /* give back URB now if we can't queue it for cancel */ + vdev = xhci->devs[urb->dev->slot_id]; + urb_priv = urb->hcpriv; + if (!vdev || !urb_priv) + goto err_giveback; + + ep_index = xhci_get_endpoint_index(&urb->ep->desc); + ep = &vdev->eps[ep_index]; + ep_ring = xhci_urb_to_transfer_ring(xhci, urb); + if (!ep || !ep_ring) + goto err_giveback; + temp = readl(&xhci->op_regs->status); if (temp == 0xffffffff || (xhci->xhc_state & XHCI_STATE_HALTED)) { xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, "HW died, freeing TD."); - urb_priv = urb->hcpriv; for (i = urb_priv->num_tds_done; - i < urb_priv->num_tds && xhci->devs[urb->dev->slot_id]; + i < urb_priv->num_tds; i++) { td = &urb_priv->td[i]; if (!list_empty(&td->td_list)) @@ -1501,23 +1514,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) if (!list_empty(&td->cancelled_td_list)) list_del_init(&td->cancelled_td_list); } - - usb_hcd_unlink_urb_from_ep(hcd, urb); - spin_unlock_irqrestore(&xhci->lock, flags); - usb_hcd_giveback_urb(hcd, urb, -ESHUTDOWN); - xhci_urb_free_priv(urb_priv); - return ret; + goto err_giveback; } - ep_index = xhci_get_endpoint_index(&urb->ep->desc); - ep = &xhci->devs[urb->dev->slot_id]->eps[ep_index]; - ep_ring = xhci_urb_to_transfer_ring(xhci, urb); - if (!ep_ring) { - ret = -EINVAL; - goto done; - } - - urb_priv = urb->hcpriv; i = urb_priv->num_tds_done; if (i < urb_priv->num_tds) xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, @@ -1554,6 +1553,14 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) done: spin_unlock_irqrestore(&xhci->lock, flags); return ret; + +err_giveback: + if (urb_priv) + xhci_urb_free_priv(urb_priv); + usb_hcd_unlink_urb_from_ep(hcd, urb); + spin_unlock_irqrestore(&xhci->lock, flags); + usb_hcd_giveback_urb(hcd, urb, -ESHUTDOWN); + return ret; } /* Drop an endpoint from a new bandwidth configuration for this device. diff --git a/drivers/usb/phy/phy-isp1301.c b/drivers/usb/phy/phy-isp1301.c index b3b33cf7ddf6..f333024660b4 100644 --- a/drivers/usb/phy/phy-isp1301.c +++ b/drivers/usb/phy/phy-isp1301.c @@ -136,7 +136,7 @@ static int isp1301_remove(struct i2c_client *client) static struct i2c_driver isp1301_driver = { .driver = { .name = DRV_NAME, - .of_match_table = of_match_ptr(isp1301_of_match), + .of_match_table = isp1301_of_match, }, .probe = isp1301_probe, .remove = isp1301_remove, diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index d7efcb632f7d..002f1ce22bd0 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -297,14 +297,15 @@ static int pwm_backlight_probe(struct platform_device *pdev) } /* - * If the GPIO is configured as input, change the direction to output - * and set the GPIO as active. + * If the GPIO is not known to be already configured as output, that + * is, if gpiod_get_direction returns either GPIOF_DIR_IN or -EINVAL, + * change the direction to output and set the GPIO as active. * Do not force the GPIO to active when it was already output as it * could cause backlight flickering or we would enable the backlight too * early. Leave the decision of the initial backlight state for later. */ if (pb->enable_gpio && - gpiod_get_direction(pb->enable_gpio) == GPIOF_DIR_IN) + gpiod_get_direction(pb->enable_gpio) != GPIOF_DIR_OUT) gpiod_direction_output(pb->enable_gpio, 1); pb->power_supply = devm_regulator_get(&pdev->dev, "power"); diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c index 8c4dc1e1f94f..b827a8113e26 100644 --- a/drivers/video/fbdev/efifb.c +++ b/drivers/video/fbdev/efifb.c @@ -10,6 +10,7 @@ #include <linux/efi.h> #include <linux/errno.h> #include <linux/fb.h> +#include <linux/pci.h> #include <linux/platform_device.h> #include <linux/screen_info.h> #include <video/vga.h> @@ -143,6 +144,8 @@ static struct attribute *efifb_attrs[] = { }; ATTRIBUTE_GROUPS(efifb); +static bool pci_dev_disabled; /* FB base matches BAR of a disabled device */ + static int efifb_probe(struct platform_device *dev) { struct fb_info *info; @@ -152,7 +155,7 @@ static int efifb_probe(struct platform_device *dev) unsigned int size_total; char *option = NULL; - if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) + if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || pci_dev_disabled) return -ENODEV; if (fb_get_options("efifb", &option)) @@ -360,3 +363,64 @@ static struct platform_driver efifb_driver = { }; builtin_platform_driver(efifb_driver); + +#if defined(CONFIG_PCI) && !defined(CONFIG_X86) + +static bool pci_bar_found; /* did we find a BAR matching the efifb base? */ + +static void claim_efifb_bar(struct pci_dev *dev, int idx) +{ + u16 word; + + pci_bar_found = true; + + pci_read_config_word(dev, PCI_COMMAND, &word); + if (!(word & PCI_COMMAND_MEMORY)) { + pci_dev_disabled = true; + dev_err(&dev->dev, + "BAR %d: assigned to efifb but device is disabled!\n", + idx); + return; + } + + if (pci_claim_resource(dev, idx)) { + pci_dev_disabled = true; + dev_err(&dev->dev, + "BAR %d: failed to claim resource for efifb!\n", idx); + return; + } + + dev_info(&dev->dev, "BAR %d: assigned to efifb\n", idx); +} + +static void efifb_fixup_resources(struct pci_dev *dev) +{ + u64 base = screen_info.lfb_base; + u64 size = screen_info.lfb_size; + int i; + + if (pci_bar_found || screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) + return; + + if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE) + base |= (u64)screen_info.ext_lfb_base << 32; + + if (!base) + return; + + for (i = 0; i < PCI_STD_RESOURCE_END; i++) { + struct resource *res = &dev->resource[i]; + + if (!(res->flags & IORESOURCE_MEM)) + continue; + + if (res->start <= base && res->end >= base + size - 1) { + claim_efifb_bar(dev, i); + break; + } + } +} +DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY, + 16, efifb_fixup_resources); + +#endif diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c index 1abba07b84b3..f4cbfb3b8a09 100644 --- a/drivers/video/fbdev/omap/omapfb_main.c +++ b/drivers/video/fbdev/omap/omapfb_main.c @@ -1608,19 +1608,6 @@ static int omapfb_find_ctrl(struct omapfb_device *fbdev) return 0; } -static void check_required_callbacks(struct omapfb_device *fbdev) -{ -#define _C(x) (fbdev->ctrl->x != NULL) -#define _P(x) (fbdev->panel->x != NULL) - BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL); - BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) && - _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) && - _P(init) && _P(cleanup) && _P(enable) && _P(disable) && - _P(get_caps))); -#undef _P -#undef _C -} - /* * Called by LDM binding to probe and attach a new device. * Initialization sequence: @@ -1705,8 +1692,6 @@ static int omapfb_do_probe(struct platform_device *pdev, omapfb_ops.fb_mmap = omapfb_mmap; init_state++; - check_required_callbacks(fbdev); - r = planes_init(fbdev); if (r) goto cleanup; diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c index bd017b57c47f..f599520374dd 100644 --- a/drivers/video/fbdev/ssd1307fb.c +++ b/drivers/video/fbdev/ssd1307fb.c @@ -578,10 +578,14 @@ static int ssd1307fb_probe(struct i2c_client *client, par->vbat_reg = devm_regulator_get_optional(&client->dev, "vbat"); if (IS_ERR(par->vbat_reg)) { - dev_err(&client->dev, "failed to get VBAT regulator: %ld\n", - PTR_ERR(par->vbat_reg)); ret = PTR_ERR(par->vbat_reg); - goto fb_alloc_error; + if (ret == -ENODEV) { + par->vbat_reg = NULL; + } else { + dev_err(&client->dev, "failed to get VBAT regulator: %d\n", + ret); + goto fb_alloc_error; + } } if (of_property_read_u32(node, "solomon,width", &par->width)) @@ -668,10 +672,13 @@ static int ssd1307fb_probe(struct i2c_client *client, udelay(4); } - ret = regulator_enable(par->vbat_reg); - if (ret) { - dev_err(&client->dev, "failed to enable VBAT: %d\n", ret); - goto reset_oled_error; + if (par->vbat_reg) { + ret = regulator_enable(par->vbat_reg); + if (ret) { + dev_err(&client->dev, "failed to enable VBAT: %d\n", + ret); + goto reset_oled_error; + } } ret = ssd1307fb_init(par); @@ -710,7 +717,8 @@ panel_init_error: pwm_put(par->pwm); }; regulator_enable_error: - regulator_disable(par->vbat_reg); + if (par->vbat_reg) + regulator_disable(par->vbat_reg); reset_oled_error: fb_deferred_io_cleanup(info); fb_alloc_error: diff --git a/drivers/video/fbdev/xen-fbfront.c b/drivers/video/fbdev/xen-fbfront.c index d0115a7af0a9..3ee309c50b2d 100644 --- a/drivers/video/fbdev/xen-fbfront.c +++ b/drivers/video/fbdev/xen-fbfront.c @@ -643,7 +643,6 @@ static void xenfb_backend_changed(struct xenbus_device *dev, break; case XenbusStateInitWait: -InitWait: xenbus_switch_state(dev, XenbusStateConnected); break; @@ -654,7 +653,8 @@ InitWait: * get Connected twice here. */ if (dev->state != XenbusStateConnected) - goto InitWait; /* no InitWait seen yet, fudge it */ + /* no InitWait seen yet, fudge it */ + xenbus_switch_state(dev, XenbusStateConnected); if (xenbus_read_unsigned(info->xbdev->otherend, "request-update", 0)) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 400d70b69379..48230a5e12f2 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -232,6 +232,12 @@ static int virtio_dev_probe(struct device *_d) if (device_features & (1ULL << i)) __virtio_set_bit(dev, i); + if (drv->validate) { + err = drv->validate(dev); + if (err) + goto err; + } + err = virtio_finalize_features(dev); if (err) goto err; diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c index 590534910dc6..698d5d06fa03 100644 --- a/drivers/virtio/virtio_pci_common.c +++ b/drivers/virtio/virtio_pci_common.c @@ -33,8 +33,10 @@ void vp_synchronize_vectors(struct virtio_device *vdev) struct virtio_pci_device *vp_dev = to_vp_device(vdev); int i; - synchronize_irq(pci_irq_vector(vp_dev->pci_dev, 0)); - for (i = 1; i < vp_dev->msix_vectors; i++) + if (vp_dev->intx_enabled) + synchronize_irq(vp_dev->pci_dev->irq); + + for (i = 0; i < vp_dev->msix_vectors; ++i) synchronize_irq(pci_irq_vector(vp_dev->pci_dev, i)); } @@ -60,13 +62,16 @@ static irqreturn_t vp_config_changed(int irq, void *opaque) static irqreturn_t vp_vring_interrupt(int irq, void *opaque) { struct virtio_pci_device *vp_dev = opaque; + struct virtio_pci_vq_info *info; irqreturn_t ret = IRQ_NONE; - struct virtqueue *vq; + unsigned long flags; - list_for_each_entry(vq, &vp_dev->vdev.vqs, list) { - if (vq->callback && vring_interrupt(irq, vq) == IRQ_HANDLED) + spin_lock_irqsave(&vp_dev->lock, flags); + list_for_each_entry(info, &vp_dev->virtqueues, node) { + if (vring_interrupt(irq, info->vq) == IRQ_HANDLED) ret = IRQ_HANDLED; } + spin_unlock_irqrestore(&vp_dev->lock, flags); return ret; } @@ -97,186 +102,244 @@ static irqreturn_t vp_interrupt(int irq, void *opaque) return vp_vring_interrupt(irq, opaque); } -static void vp_remove_vqs(struct virtio_device *vdev) +static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors, + bool per_vq_vectors, struct irq_affinity *desc) { struct virtio_pci_device *vp_dev = to_vp_device(vdev); - struct virtqueue *vq, *n; + const char *name = dev_name(&vp_dev->vdev.dev); + unsigned i, v; + int err = -ENOMEM; - list_for_each_entry_safe(vq, n, &vdev->vqs, list) { - if (vp_dev->msix_vector_map) { - int v = vp_dev->msix_vector_map[vq->index]; + vp_dev->msix_vectors = nvectors; - if (v != VIRTIO_MSI_NO_VECTOR) - free_irq(pci_irq_vector(vp_dev->pci_dev, v), - vq); - } - vp_dev->del_vq(vq); + vp_dev->msix_names = kmalloc(nvectors * sizeof *vp_dev->msix_names, + GFP_KERNEL); + if (!vp_dev->msix_names) + goto error; + vp_dev->msix_affinity_masks + = kzalloc(nvectors * sizeof *vp_dev->msix_affinity_masks, + GFP_KERNEL); + if (!vp_dev->msix_affinity_masks) + goto error; + for (i = 0; i < nvectors; ++i) + if (!alloc_cpumask_var(&vp_dev->msix_affinity_masks[i], + GFP_KERNEL)) + goto error; + + err = pci_alloc_irq_vectors_affinity(vp_dev->pci_dev, nvectors, + nvectors, PCI_IRQ_MSIX | + (desc ? PCI_IRQ_AFFINITY : 0), + desc); + if (err < 0) + goto error; + vp_dev->msix_enabled = 1; + + /* Set the vector used for configuration */ + v = vp_dev->msix_used_vectors; + snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names, + "%s-config", name); + err = request_irq(pci_irq_vector(vp_dev->pci_dev, v), + vp_config_changed, 0, vp_dev->msix_names[v], + vp_dev); + if (err) + goto error; + ++vp_dev->msix_used_vectors; + + v = vp_dev->config_vector(vp_dev, v); + /* Verify we had enough resources to assign the vector */ + if (v == VIRTIO_MSI_NO_VECTOR) { + err = -EBUSY; + goto error; } + + if (!per_vq_vectors) { + /* Shared vector for all VQs */ + v = vp_dev->msix_used_vectors; + snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names, + "%s-virtqueues", name); + err = request_irq(pci_irq_vector(vp_dev->pci_dev, v), + vp_vring_interrupt, 0, vp_dev->msix_names[v], + vp_dev); + if (err) + goto error; + ++vp_dev->msix_used_vectors; + } + return 0; +error: + return err; +} + +static struct virtqueue *vp_setup_vq(struct virtio_device *vdev, unsigned index, + void (*callback)(struct virtqueue *vq), + const char *name, + u16 msix_vec) +{ + struct virtio_pci_device *vp_dev = to_vp_device(vdev); + struct virtio_pci_vq_info *info = kmalloc(sizeof *info, GFP_KERNEL); + struct virtqueue *vq; + unsigned long flags; + + /* fill out our structure that represents an active queue */ + if (!info) + return ERR_PTR(-ENOMEM); + + vq = vp_dev->setup_vq(vp_dev, info, index, callback, name, + msix_vec); + if (IS_ERR(vq)) + goto out_info; + + info->vq = vq; + if (callback) { + spin_lock_irqsave(&vp_dev->lock, flags); + list_add(&info->node, &vp_dev->virtqueues); + spin_unlock_irqrestore(&vp_dev->lock, flags); + } else { + INIT_LIST_HEAD(&info->node); + } + + vp_dev->vqs[index] = info; + return vq; + +out_info: + kfree(info); + return vq; +} + +static void vp_del_vq(struct virtqueue *vq) +{ + struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev); + struct virtio_pci_vq_info *info = vp_dev->vqs[vq->index]; + unsigned long flags; + + spin_lock_irqsave(&vp_dev->lock, flags); + list_del(&info->node); + spin_unlock_irqrestore(&vp_dev->lock, flags); + + vp_dev->del_vq(info); + kfree(info); } /* the config->del_vqs() implementation */ void vp_del_vqs(struct virtio_device *vdev) { struct virtio_pci_device *vp_dev = to_vp_device(vdev); + struct virtqueue *vq, *n; int i; - if (WARN_ON_ONCE(list_empty_careful(&vdev->vqs))) - return; + list_for_each_entry_safe(vq, n, &vdev->vqs, list) { + if (vp_dev->per_vq_vectors) { + int v = vp_dev->vqs[vq->index]->msix_vector; - vp_remove_vqs(vdev); + if (v != VIRTIO_MSI_NO_VECTOR) { + int irq = pci_irq_vector(vp_dev->pci_dev, v); + + irq_set_affinity_hint(irq, NULL); + free_irq(irq, vq); + } + } + vp_del_vq(vq); + } + vp_dev->per_vq_vectors = false; + + if (vp_dev->intx_enabled) { + free_irq(vp_dev->pci_dev->irq, vp_dev); + vp_dev->intx_enabled = 0; + } - if (vp_dev->pci_dev->msix_enabled) { - for (i = 0; i < vp_dev->msix_vectors; i++) + for (i = 0; i < vp_dev->msix_used_vectors; ++i) + free_irq(pci_irq_vector(vp_dev->pci_dev, i), vp_dev); + + for (i = 0; i < vp_dev->msix_vectors; i++) + if (vp_dev->msix_affinity_masks[i]) free_cpumask_var(vp_dev->msix_affinity_masks[i]); + if (vp_dev->msix_enabled) { /* Disable the vector used for configuration */ vp_dev->config_vector(vp_dev, VIRTIO_MSI_NO_VECTOR); - kfree(vp_dev->msix_affinity_masks); - kfree(vp_dev->msix_names); - kfree(vp_dev->msix_vector_map); + pci_free_irq_vectors(vp_dev->pci_dev); + vp_dev->msix_enabled = 0; } - free_irq(pci_irq_vector(vp_dev->pci_dev, 0), vp_dev); - pci_free_irq_vectors(vp_dev->pci_dev); + vp_dev->msix_vectors = 0; + vp_dev->msix_used_vectors = 0; + kfree(vp_dev->msix_names); + vp_dev->msix_names = NULL; + kfree(vp_dev->msix_affinity_masks); + vp_dev->msix_affinity_masks = NULL; + kfree(vp_dev->vqs); + vp_dev->vqs = NULL; } static int vp_find_vqs_msix(struct virtio_device *vdev, unsigned nvqs, struct virtqueue *vqs[], vq_callback_t *callbacks[], - const char * const names[], struct irq_affinity *desc) + const char * const names[], bool per_vq_vectors, + struct irq_affinity *desc) { struct virtio_pci_device *vp_dev = to_vp_device(vdev); - const char *name = dev_name(&vp_dev->vdev.dev); - int i, j, err = -ENOMEM, allocated_vectors, nvectors; - unsigned flags = PCI_IRQ_MSIX; - bool shared = false; u16 msix_vec; + int i, err, nvectors, allocated_vectors; - if (desc) { - flags |= PCI_IRQ_AFFINITY; - desc->pre_vectors++; /* virtio config vector */ - } - - nvectors = 1; - for (i = 0; i < nvqs; i++) - if (callbacks[i]) - nvectors++; - - /* Try one vector per queue first. */ - err = pci_alloc_irq_vectors_affinity(vp_dev->pci_dev, nvectors, - nvectors, flags, desc); - if (err < 0) { - /* Fallback to one vector for config, one shared for queues. */ - shared = true; - err = pci_alloc_irq_vectors(vp_dev->pci_dev, 2, 2, - PCI_IRQ_MSIX); - if (err < 0) - return err; - } - if (err < 0) - return err; - - vp_dev->msix_vectors = nvectors; - vp_dev->msix_names = kmalloc_array(nvectors, - sizeof(*vp_dev->msix_names), GFP_KERNEL); - if (!vp_dev->msix_names) - goto out_free_irq_vectors; - - vp_dev->msix_affinity_masks = kcalloc(nvectors, - sizeof(*vp_dev->msix_affinity_masks), GFP_KERNEL); - if (!vp_dev->msix_affinity_masks) - goto out_free_msix_names; + vp_dev->vqs = kcalloc(nvqs, sizeof(*vp_dev->vqs), GFP_KERNEL); + if (!vp_dev->vqs) + return -ENOMEM; - for (i = 0; i < nvectors; ++i) { - if (!alloc_cpumask_var(&vp_dev->msix_affinity_masks[i], - GFP_KERNEL)) - goto out_free_msix_affinity_masks; + if (per_vq_vectors) { + /* Best option: one for change interrupt, one per vq. */ + nvectors = 1; + for (i = 0; i < nvqs; ++i) + if (callbacks[i]) + ++nvectors; + } else { + /* Second best: one for change, shared for all vqs. */ + nvectors = 2; } - /* Set the vector used for configuration */ - snprintf(vp_dev->msix_names[0], sizeof(*vp_dev->msix_names), - "%s-config", name); - err = request_irq(pci_irq_vector(vp_dev->pci_dev, 0), vp_config_changed, - 0, vp_dev->msix_names[0], vp_dev); + err = vp_request_msix_vectors(vdev, nvectors, per_vq_vectors, + per_vq_vectors ? desc : NULL); if (err) - goto out_free_msix_affinity_masks; + goto error_find; - /* Verify we had enough resources to assign the vector */ - if (vp_dev->config_vector(vp_dev, 0) == VIRTIO_MSI_NO_VECTOR) { - err = -EBUSY; - goto out_free_config_irq; - } - - vp_dev->msix_vector_map = kmalloc_array(nvqs, - sizeof(*vp_dev->msix_vector_map), GFP_KERNEL); - if (!vp_dev->msix_vector_map) - goto out_disable_config_irq; - - allocated_vectors = j = 1; /* vector 0 is the config interrupt */ + vp_dev->per_vq_vectors = per_vq_vectors; + allocated_vectors = vp_dev->msix_used_vectors; for (i = 0; i < nvqs; ++i) { if (!names[i]) { vqs[i] = NULL; continue; } - if (callbacks[i]) - msix_vec = allocated_vectors; - else + if (!callbacks[i]) msix_vec = VIRTIO_MSI_NO_VECTOR; - - vqs[i] = vp_dev->setup_vq(vp_dev, i, callbacks[i], names[i], - msix_vec); + else if (vp_dev->per_vq_vectors) + msix_vec = allocated_vectors++; + else + msix_vec = VP_MSIX_VQ_VECTOR; + vqs[i] = vp_setup_vq(vdev, i, callbacks[i], names[i], + msix_vec); if (IS_ERR(vqs[i])) { err = PTR_ERR(vqs[i]); - goto out_remove_vqs; + goto error_find; } - if (msix_vec == VIRTIO_MSI_NO_VECTOR) { - vp_dev->msix_vector_map[i] = VIRTIO_MSI_NO_VECTOR; + if (!vp_dev->per_vq_vectors || msix_vec == VIRTIO_MSI_NO_VECTOR) continue; - } - snprintf(vp_dev->msix_names[j], - sizeof(*vp_dev->msix_names), "%s-%s", + /* allocate per-vq irq if available and necessary */ + snprintf(vp_dev->msix_names[msix_vec], + sizeof *vp_dev->msix_names, + "%s-%s", dev_name(&vp_dev->vdev.dev), names[i]); err = request_irq(pci_irq_vector(vp_dev->pci_dev, msix_vec), - vring_interrupt, IRQF_SHARED, - vp_dev->msix_names[j], vqs[i]); - if (err) { - /* don't free this irq on error */ - vp_dev->msix_vector_map[i] = VIRTIO_MSI_NO_VECTOR; - goto out_remove_vqs; - } - vp_dev->msix_vector_map[i] = msix_vec; - j++; - - /* - * Use a different vector for each queue if they are available, - * else share the same vector for all VQs. - */ - if (!shared) - allocated_vectors++; + vring_interrupt, 0, + vp_dev->msix_names[msix_vec], + vqs[i]); + if (err) + goto error_find; } - return 0; -out_remove_vqs: - vp_remove_vqs(vdev); - kfree(vp_dev->msix_vector_map); -out_disable_config_irq: - vp_dev->config_vector(vp_dev, VIRTIO_MSI_NO_VECTOR); -out_free_config_irq: - free_irq(pci_irq_vector(vp_dev->pci_dev, 0), vp_dev); -out_free_msix_affinity_masks: - for (i = 0; i < nvectors; i++) { - if (vp_dev->msix_affinity_masks[i]) - free_cpumask_var(vp_dev->msix_affinity_masks[i]); - } - kfree(vp_dev->msix_affinity_masks); -out_free_msix_names: - kfree(vp_dev->msix_names); -out_free_irq_vectors: - pci_free_irq_vectors(vp_dev->pci_dev); +error_find: + vp_del_vqs(vdev); return err; } @@ -287,29 +350,33 @@ static int vp_find_vqs_intx(struct virtio_device *vdev, unsigned nvqs, struct virtio_pci_device *vp_dev = to_vp_device(vdev); int i, err; + vp_dev->vqs = kcalloc(nvqs, sizeof(*vp_dev->vqs), GFP_KERNEL); + if (!vp_dev->vqs) + return -ENOMEM; + err = request_irq(vp_dev->pci_dev->irq, vp_interrupt, IRQF_SHARED, dev_name(&vdev->dev), vp_dev); if (err) - return err; + goto out_del_vqs; + vp_dev->intx_enabled = 1; + vp_dev->per_vq_vectors = false; for (i = 0; i < nvqs; ++i) { if (!names[i]) { vqs[i] = NULL; continue; } - vqs[i] = vp_dev->setup_vq(vp_dev, i, callbacks[i], names[i], - VIRTIO_MSI_NO_VECTOR); + vqs[i] = vp_setup_vq(vdev, i, callbacks[i], names[i], + VIRTIO_MSI_NO_VECTOR); if (IS_ERR(vqs[i])) { err = PTR_ERR(vqs[i]); - goto out_remove_vqs; + goto out_del_vqs; } } return 0; - -out_remove_vqs: - vp_remove_vqs(vdev); - free_irq(pci_irq_vector(vp_dev->pci_dev, 0), vp_dev); +out_del_vqs: + vp_del_vqs(vdev); return err; } @@ -320,9 +387,15 @@ int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, { int err; - err = vp_find_vqs_msix(vdev, nvqs, vqs, callbacks, names, desc); + /* Try MSI-X with one vector per queue. */ + err = vp_find_vqs_msix(vdev, nvqs, vqs, callbacks, names, true, desc); if (!err) return 0; + /* Fallback: MSI-X with one vector for config, one shared for queues. */ + err = vp_find_vqs_msix(vdev, nvqs, vqs, callbacks, names, false, desc); + if (!err) + return 0; + /* Finally fall back to regular interrupts. */ return vp_find_vqs_intx(vdev, nvqs, vqs, callbacks, names); } @@ -342,15 +415,16 @@ int vp_set_vq_affinity(struct virtqueue *vq, int cpu) { struct virtio_device *vdev = vq->vdev; struct virtio_pci_device *vp_dev = to_vp_device(vdev); + struct virtio_pci_vq_info *info = vp_dev->vqs[vq->index]; + struct cpumask *mask; + unsigned int irq; if (!vq->callback) return -EINVAL; - if (vp_dev->pci_dev->msix_enabled) { - int vec = vp_dev->msix_vector_map[vq->index]; - struct cpumask *mask = vp_dev->msix_affinity_masks[vec]; - unsigned int irq = pci_irq_vector(vp_dev->pci_dev, vec); - + if (vp_dev->msix_enabled) { + mask = vp_dev->msix_affinity_masks[info->msix_vector]; + irq = pci_irq_vector(vp_dev->pci_dev, info->msix_vector); if (cpu == -1) irq_set_affinity_hint(irq, NULL); else { @@ -365,12 +439,13 @@ int vp_set_vq_affinity(struct virtqueue *vq, int cpu) const struct cpumask *vp_get_vq_affinity(struct virtio_device *vdev, int index) { struct virtio_pci_device *vp_dev = to_vp_device(vdev); - unsigned int *map = vp_dev->msix_vector_map; - if (!map || map[index] == VIRTIO_MSI_NO_VECTOR) + if (!vp_dev->per_vq_vectors || + vp_dev->vqs[index]->msix_vector == VIRTIO_MSI_NO_VECTOR) return NULL; - return pci_irq_get_affinity(vp_dev->pci_dev, map[index]); + return pci_irq_get_affinity(vp_dev->pci_dev, + vp_dev->vqs[index]->msix_vector); } #ifdef CONFIG_PM_SLEEP @@ -441,6 +516,8 @@ static int virtio_pci_probe(struct pci_dev *pci_dev, vp_dev->vdev.dev.parent = &pci_dev->dev; vp_dev->vdev.dev.release = virtio_pci_release_dev; vp_dev->pci_dev = pci_dev; + INIT_LIST_HEAD(&vp_dev->virtqueues); + spin_lock_init(&vp_dev->lock); /* enable the device */ rc = pci_enable_device(pci_dev); diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index ac8c9d788964..e96334aec1e0 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -31,6 +31,17 @@ #include <linux/highmem.h> #include <linux/spinlock.h> +struct virtio_pci_vq_info { + /* the actual virtqueue */ + struct virtqueue *vq; + + /* the list node for the virtqueues list */ + struct list_head node; + + /* MSI-X vector (or none) */ + unsigned msix_vector; +}; + /* Our device structure */ struct virtio_pci_device { struct virtio_device vdev; @@ -64,25 +75,47 @@ struct virtio_pci_device { /* the IO mapping for the PCI config space */ void __iomem *ioaddr; + /* a list of queues so we can dispatch IRQs */ + spinlock_t lock; + struct list_head virtqueues; + + /* array of all queues for house-keeping */ + struct virtio_pci_vq_info **vqs; + + /* MSI-X support */ + int msix_enabled; + int intx_enabled; cpumask_var_t *msix_affinity_masks; /* Name strings for interrupts. This size should be enough, * and I'm too lazy to allocate each name separately. */ char (*msix_names)[256]; - /* Total Number of MSI-X vectors (including per-VQ ones). */ - int msix_vectors; - /* Map of per-VQ MSI-X vectors, may be NULL */ - unsigned *msix_vector_map; + /* Number of available vectors */ + unsigned msix_vectors; + /* Vectors allocated, excluding per-vq vectors if any */ + unsigned msix_used_vectors; + + /* Whether we have vector per vq */ + bool per_vq_vectors; struct virtqueue *(*setup_vq)(struct virtio_pci_device *vp_dev, + struct virtio_pci_vq_info *info, unsigned idx, void (*callback)(struct virtqueue *vq), const char *name, u16 msix_vec); - void (*del_vq)(struct virtqueue *vq); + void (*del_vq)(struct virtio_pci_vq_info *info); u16 (*config_vector)(struct virtio_pci_device *vp_dev, u16 vector); }; +/* Constants for MSI-X */ +/* Use first vector for configuration changes, second and the rest for + * virtqueues Thus, we need at least 2 vectors for MSI. */ +enum { + VP_MSIX_CONFIG_VECTOR = 0, + VP_MSIX_VQ_VECTOR = 1, +}; + /* Convert a generic virtio device to our structure */ static struct virtio_pci_device *to_vp_device(struct virtio_device *vdev) { diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c index f7362c5fe18a..4bfa48fb1324 100644 --- a/drivers/virtio/virtio_pci_legacy.c +++ b/drivers/virtio/virtio_pci_legacy.c @@ -112,6 +112,7 @@ static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector) } static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev, + struct virtio_pci_vq_info *info, unsigned index, void (*callback)(struct virtqueue *vq), const char *name, @@ -129,6 +130,8 @@ static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev, if (!num || ioread32(vp_dev->ioaddr + VIRTIO_PCI_QUEUE_PFN)) return ERR_PTR(-ENOENT); + info->msix_vector = msix_vec; + /* create the vring */ vq = vring_create_virtqueue(index, num, VIRTIO_PCI_VRING_ALIGN, &vp_dev->vdev, @@ -159,13 +162,14 @@ out_deactivate: return ERR_PTR(err); } -static void del_vq(struct virtqueue *vq) +static void del_vq(struct virtio_pci_vq_info *info) { + struct virtqueue *vq = info->vq; struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev); iowrite16(vq->index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL); - if (vp_dev->pci_dev->msix_enabled) { + if (vp_dev->msix_enabled) { iowrite16(VIRTIO_MSI_NO_VECTOR, vp_dev->ioaddr + VIRTIO_MSI_QUEUE_VECTOR); /* Flush the write out to device */ diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c index 7bc3004b840e..8978f109d2d7 100644 --- a/drivers/virtio/virtio_pci_modern.c +++ b/drivers/virtio/virtio_pci_modern.c @@ -293,6 +293,7 @@ static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector) } static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev, + struct virtio_pci_vq_info *info, unsigned index, void (*callback)(struct virtqueue *vq), const char *name, @@ -322,6 +323,8 @@ static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev, /* get offset of notification word for this vq */ off = vp_ioread16(&cfg->queue_notify_off); + info->msix_vector = msix_vec; + /* create the vring */ vq = vring_create_virtqueue(index, num, SMP_CACHE_BYTES, &vp_dev->vdev, @@ -405,13 +408,14 @@ static int vp_modern_find_vqs(struct virtio_device *vdev, unsigned nvqs, return 0; } -static void del_vq(struct virtqueue *vq) +static void del_vq(struct virtio_pci_vq_info *info) { + struct virtqueue *vq = info->vq; struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev); vp_iowrite16(vq->index, &vp_dev->common->queue_select); - if (vp_dev->pci_dev->msix_enabled) { + if (vp_dev->msix_enabled) { vp_iowrite16(VIRTIO_MSI_NO_VECTOR, &vp_dev->common->queue_msix_vector); /* Flush the write out to device */ diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c index 1f4733b80c87..f3b089b7c0b6 100644 --- a/drivers/xen/xenbus/xenbus_dev_frontend.c +++ b/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -442,8 +442,10 @@ static int xenbus_write_transaction(unsigned msg_type, return xenbus_command_reply(u, XS_ERROR, "ENOENT"); rc = xenbus_dev_request_and_reply(&u->u.msg, u); - if (rc) + if (rc && trans) { + list_del(&trans->list); kfree(trans); + } out: return rc; |
