diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/bpf.h | 2 | ||||
| -rw-r--r-- | include/linux/dim.h | 63 | ||||
| -rw-r--r-- | include/linux/linkmode.h | 6 | ||||
| -rw-r--r-- | include/linux/mroute_base.h | 28 | ||||
| -rw-r--r-- | include/linux/netdevice.h | 23 | ||||
| -rw-r--r-- | include/linux/sfp.h | 10 | ||||
| -rw-r--r-- | include/linux/skbuff.h | 6 | ||||
| -rw-r--r-- | include/linux/skmsg.h | 12 | ||||
| -rw-r--r-- | include/linux/spi/spi.h | 61 | ||||
| -rw-r--r-- | include/linux/stmmac.h | 1 |
10 files changed, 150 insertions, 62 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 5b9d22338606..282e28bf41ec 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -363,7 +363,7 @@ struct bpf_prog_stats { u64 cnt; u64 nsecs; struct u64_stats_sync syncp; -}; +} __aligned(2 * sizeof(u64)); struct bpf_prog_aux { atomic_t refcnt; diff --git a/include/linux/dim.h b/include/linux/dim.h index 9fa4b3f88c39..b698266d0035 100644 --- a/include/linux/dim.h +++ b/include/linux/dim.h @@ -4,22 +4,26 @@ #ifndef DIM_H #define DIM_H +#include <linux/bits.h> +#include <linux/kernel.h> #include <linux/module.h> +#include <linux/types.h> +#include <linux/workqueue.h> -/** +/* * Number of events between DIM iterations. * Causes a moderation of the algorithm run. */ #define DIM_NEVENTS 64 -/** +/* * Is a difference between values justifies taking an action. * We consider 10% difference as significant. */ #define IS_SIGNIFICANT_DIFF(val, ref) \ (((100UL * abs((val) - (ref))) / (ref)) > 10) -/** +/* * Calculate the gap between two values. * Take wrap-around and variable size into consideration. */ @@ -27,12 +31,13 @@ & (BIT_ULL(bits) - 1)) /** - * Structure for CQ moderation values. + * struct dim_cq_moder - Structure for CQ moderation values. * Used for communications between DIM and its consumer. * * @usec: CQ timer suggestion (by DIM) * @pkts: CQ packet counter suggestion (by DIM) - * @cq_period_mode: CQ priod count mode (from CQE/EQE) + * @comps: Completion counter + * @cq_period_mode: CQ period count mode (from CQE/EQE) */ struct dim_cq_moder { u16 usec; @@ -42,13 +47,14 @@ struct dim_cq_moder { }; /** - * Structure for DIM sample data. + * struct dim_sample - Structure for DIM sample data. * Used for communications between DIM and its consumer. * * @time: Sample timestamp * @pkt_ctr: Number of packets * @byte_ctr: Number of bytes * @event_ctr: Number of events + * @comp_ctr: Current completion counter */ struct dim_sample { ktime_t time; @@ -59,12 +65,14 @@ struct dim_sample { }; /** - * Structure for DIM stats. + * struct dim_stats - Structure for DIM stats. * Used for holding current measured rates. * * @ppms: Packets per msec * @bpms: Bytes per msec * @epms: Events per msec + * @cpms: Completions per msec + * @cpe_ratio: Ratio of completions to events */ struct dim_stats { int ppms; /* packets per msec */ @@ -75,12 +83,13 @@ struct dim_stats { }; /** - * Main structure for dynamic interrupt moderation (DIM). + * struct dim - Main structure for dynamic interrupt moderation (DIM). * Used for holding all information about a specific DIM instance. * * @state: Algorithm state (see below) * @prev_stats: Measured rates from previous iteration (for comparison) * @start_sample: Sampled data at start of current iteration + * @measuring_sample: A &dim_sample that is used to update the current events * @work: Work to perform on action required * @priv: A pointer to the struct that points to dim * @profile_ix: Current moderation profile @@ -106,24 +115,21 @@ struct dim { }; /** - * enum dim_cq_period_mode - * - * These are the modes for CQ period count. + * enum dim_cq_period_mode - Modes for CQ period count * * @DIM_CQ_PERIOD_MODE_START_FROM_EQE: Start counting from EQE * @DIM_CQ_PERIOD_MODE_START_FROM_CQE: Start counting from CQE (implies timer reset) * @DIM_CQ_PERIOD_NUM_MODES: Number of modes */ -enum { +enum dim_cq_period_mode { DIM_CQ_PERIOD_MODE_START_FROM_EQE = 0x0, DIM_CQ_PERIOD_MODE_START_FROM_CQE = 0x1, DIM_CQ_PERIOD_NUM_MODES }; /** - * enum dim_state + * enum dim_state - DIM algorithm states * - * These are the DIM algorithm states. * These will determine if the algorithm is in a valid state to start an iteration. * * @DIM_START_MEASURE: This is the first iteration (also after applying a new profile) @@ -131,16 +137,15 @@ enum { * need to perform an action * @DIM_APPLY_NEW_PROFILE: DIM consumer is currently applying a profile - no need to measure */ -enum { +enum dim_state { DIM_START_MEASURE, DIM_MEASURE_IN_PROGRESS, DIM_APPLY_NEW_PROFILE, }; /** - * enum dim_tune_state + * enum dim_tune_state - DIM algorithm tune states * - * These are the DIM algorithm tune states. * These will determine which action the algorithm should perform. * * @DIM_PARKING_ON_TOP: Algorithm found a local top point - exit on significant difference @@ -148,7 +153,7 @@ enum { * @DIM_GOING_RIGHT: Algorithm is currently trying higher moderation levels * @DIM_GOING_LEFT: Algorithm is currently trying lower moderation levels */ -enum { +enum dim_tune_state { DIM_PARKING_ON_TOP, DIM_PARKING_TIRED, DIM_GOING_RIGHT, @@ -156,25 +161,23 @@ enum { }; /** - * enum dim_stats_state + * enum dim_stats_state - DIM algorithm statistics states * - * These are the DIM algorithm statistics states. * These will determine the verdict of current iteration. * * @DIM_STATS_WORSE: Current iteration shows worse performance than before - * @DIM_STATS_WORSE: Current iteration shows same performance than before - * @DIM_STATS_WORSE: Current iteration shows better performance than before + * @DIM_STATS_SAME: Current iteration shows same performance than before + * @DIM_STATS_BETTER: Current iteration shows better performance than before */ -enum { +enum dim_stats_state { DIM_STATS_WORSE, DIM_STATS_SAME, DIM_STATS_BETTER, }; /** - * enum dim_step_result + * enum dim_step_result - DIM algorithm step results * - * These are the DIM algorithm step results. * These describe the result of a step. * * @DIM_STEPPED: Performed a regular step @@ -182,7 +185,7 @@ enum { * tired parking * @DIM_ON_EDGE: Stepped to the most left/right profile */ -enum { +enum dim_step_result { DIM_STEPPED, DIM_TOO_TIRED, DIM_ON_EDGE, @@ -199,7 +202,7 @@ enum { bool dim_on_top(struct dim *dim); /** - * dim_turn - change profile alterning direction + * dim_turn - change profile altering direction * @dim: DIM context * * Go left if we were going right and vice-versa. @@ -238,7 +241,7 @@ void dim_calc_stats(struct dim_sample *start, struct dim_sample *end, struct dim_stats *curr_stats); /** - * dim_update_sample - set a sample's fields with give values + * dim_update_sample - set a sample's fields with given values * @event_ctr: number of events to set * @packets: number of packets to set * @bytes: number of bytes to set @@ -304,8 +307,8 @@ struct dim_cq_moder net_dim_get_def_tx_moderation(u8 cq_period_mode); * @end_sample: Current data measurement * * Called by the consumer. - * This is the main logic of the algorithm, where data is processed in order to decide on next - * required action. + * This is the main logic of the algorithm, where data is processed in order + * to decide on next required action. */ void net_dim(struct dim *dim, struct dim_sample end_sample); diff --git a/include/linux/linkmode.h b/include/linux/linkmode.h index a99c58866860..fe740031339d 100644 --- a/include/linux/linkmode.h +++ b/include/linux/linkmode.h @@ -82,4 +82,10 @@ static inline int linkmode_equal(const unsigned long *src1, return bitmap_equal(src1, src2, __ETHTOOL_LINK_MODE_MASK_NBITS); } +static inline int linkmode_subset(const unsigned long *src1, + const unsigned long *src2) +{ + return bitmap_subset(src1, src2, __ETHTOOL_LINK_MODE_MASK_NBITS); +} + #endif /* __LINKMODE_H */ diff --git a/include/linux/mroute_base.h b/include/linux/mroute_base.h index 34de06b426ef..8071148f29a6 100644 --- a/include/linux/mroute_base.h +++ b/include/linux/mroute_base.h @@ -47,16 +47,16 @@ struct vif_entry_notifier_info { }; static inline int mr_call_vif_notifier(struct notifier_block *nb, - struct net *net, unsigned short family, enum fib_event_type event_type, struct vif_device *vif, - unsigned short vif_index, u32 tb_id) + unsigned short vif_index, u32 tb_id, + struct netlink_ext_ack *extack) { struct vif_entry_notifier_info info = { .info = { .family = family, - .net = net, + .extack = extack, }, .dev = vif->dev, .vif_index = vif_index, @@ -64,7 +64,7 @@ static inline int mr_call_vif_notifier(struct notifier_block *nb, .tb_id = tb_id, }; - return call_fib_notifier(nb, net, event_type, &info.info); + return call_fib_notifier(nb, event_type, &info.info); } static inline int mr_call_vif_notifiers(struct net *net, @@ -77,7 +77,6 @@ static inline int mr_call_vif_notifiers(struct net *net, struct vif_entry_notifier_info info = { .info = { .family = family, - .net = net, }, .dev = vif->dev, .vif_index = vif_index, @@ -173,21 +172,21 @@ struct mfc_entry_notifier_info { }; static inline int mr_call_mfc_notifier(struct notifier_block *nb, - struct net *net, unsigned short family, enum fib_event_type event_type, - struct mr_mfc *mfc, u32 tb_id) + struct mr_mfc *mfc, u32 tb_id, + struct netlink_ext_ack *extack) { struct mfc_entry_notifier_info info = { .info = { .family = family, - .net = net, + .extack = extack, }, .mfc = mfc, .tb_id = tb_id }; - return call_fib_notifier(nb, net, event_type, &info.info); + return call_fib_notifier(nb, event_type, &info.info); } static inline int mr_call_mfc_notifiers(struct net *net, @@ -199,7 +198,6 @@ static inline int mr_call_mfc_notifiers(struct net *net, struct mfc_entry_notifier_info info = { .info = { .family = family, - .net = net, }, .mfc = mfc, .tb_id = tb_id @@ -301,10 +299,11 @@ int mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb, int mr_dump(struct net *net, struct notifier_block *nb, unsigned short family, int (*rules_dump)(struct net *net, - struct notifier_block *nb), + struct notifier_block *nb, + struct netlink_ext_ack *extack), struct mr_table *(*mr_iter)(struct net *net, struct mr_table *mrt), - rwlock_t *mrt_lock); + rwlock_t *mrt_lock, struct netlink_ext_ack *extack); #else static inline void vif_device_init(struct vif_device *v, struct net_device *dev, @@ -355,10 +354,11 @@ mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb, static inline int mr_dump(struct net *net, struct notifier_block *nb, unsigned short family, int (*rules_dump)(struct net *net, - struct notifier_block *nb), + struct notifier_block *nb, + struct netlink_ext_ack *extack), struct mr_table *(*mr_iter)(struct net *net, struct mr_table *mrt), - rwlock_t *mrt_lock) + rwlock_t *mrt_lock, struct netlink_ext_ack *extack) { return -EINVAL; } diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 9eda1c31d1f7..3207e0b9ec4e 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -925,6 +925,16 @@ struct dev_ifalias { struct devlink; struct tlsdev_ops; +struct netdev_name_node { + struct hlist_node hlist; + struct list_head list; + struct net_device *dev; + const char *name; +}; + +int netdev_name_node_alt_create(struct net_device *dev, const char *name); +int netdev_name_node_alt_destroy(struct net_device *dev, const char *name); + /* * This structure defines the management hooks for network devices. * The following hooks can be defined; unless noted otherwise, they are @@ -1564,7 +1574,7 @@ enum netdev_priv_flags { * (i.e. as seen by users in the "Space.c" file). It is the name * of the interface. * - * @name_hlist: Device name hash chain, please keep it close to name[] + * @name_node: Name hashlist node * @ifalias: SNMP alias * @mem_end: Shared memory end * @mem_start: Shared memory start @@ -1774,7 +1784,7 @@ enum netdev_priv_flags { struct net_device { char name[IFNAMSIZ]; - struct hlist_node name_hlist; + struct netdev_name_node *name_node; struct dev_ifalias __rcu *ifalias; /* * I/O specific fields @@ -2494,6 +2504,9 @@ const char *netdev_cmd_to_name(enum netdev_cmd cmd); int register_netdevice_notifier(struct notifier_block *nb); int unregister_netdevice_notifier(struct notifier_block *nb); +int register_netdevice_notifier_net(struct net *net, struct notifier_block *nb); +int unregister_netdevice_notifier_net(struct net *net, + struct notifier_block *nb); struct netdev_notifier_info { struct net_device *dev; @@ -2564,6 +2577,9 @@ extern rwlock_t dev_base_lock; /* Device list lock */ list_for_each_entry_safe(d, n, &(net)->dev_base_head, dev_list) #define for_each_netdev_continue(net, d) \ list_for_each_entry_continue(d, &(net)->dev_base_head, dev_list) +#define for_each_netdev_continue_reverse(net, d) \ + list_for_each_entry_continue_reverse(d, &(net)->dev_base_head, \ + dev_list) #define for_each_netdev_continue_rcu(net, d) \ list_for_each_entry_continue_rcu(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_in_bond_rcu(bond, slave) \ @@ -4097,9 +4113,6 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name, unsigned char name_assign_type, void (*setup)(struct net_device *), unsigned int txqs, unsigned int rxqs); -int dev_get_valid_name(struct net *net, struct net_device *dev, - const char *name); - #define alloc_netdev(sizeof_priv, name, name_assign_type, setup) \ alloc_netdev_mqs(sizeof_priv, name, name_assign_type, setup, 1, 1) diff --git a/include/linux/sfp.h b/include/linux/sfp.h index 1c35428e98bc..355a08a76fd4 100644 --- a/include/linux/sfp.h +++ b/include/linux/sfp.h @@ -508,9 +508,9 @@ int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee, u8 *data); void sfp_upstream_start(struct sfp_bus *bus); void sfp_upstream_stop(struct sfp_bus *bus); -struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode, - void *upstream, - const struct sfp_upstream_ops *ops); +struct sfp_bus *sfp_register_upstream_node(struct fwnode_handle *fwnode, + void *upstream, + const struct sfp_upstream_ops *ops); void sfp_unregister_upstream(struct sfp_bus *bus); #else static inline int sfp_parse_port(struct sfp_bus *bus, @@ -553,11 +553,11 @@ static inline void sfp_upstream_stop(struct sfp_bus *bus) { } -static inline struct sfp_bus *sfp_register_upstream( +static inline struct sfp_bus *sfp_register_upstream_node( struct fwnode_handle *fwnode, void *upstream, const struct sfp_upstream_ops *ops) { - return (struct sfp_bus *)-1; + return NULL; } static inline void sfp_unregister_upstream(struct sfp_bus *bus) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 7914fdaf4226..f7ae12a1d680 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2261,12 +2261,12 @@ static inline void *pskb_pull(struct sk_buff *skb, unsigned int len) return unlikely(len > skb->len) ? NULL : __pskb_pull(skb, len); } -static inline int pskb_may_pull(struct sk_buff *skb, unsigned int len) +static inline bool pskb_may_pull(struct sk_buff *skb, unsigned int len) { if (likely(len <= skb_headlen(skb))) - return 1; + return true; if (unlikely(len > skb->len)) - return 0; + return false; return __pskb_pull_tail(skb, len - skb_headlen(skb)) != NULL; } diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h index e4b3fb4bb77c..fe80d537945d 100644 --- a/include/linux/skmsg.h +++ b/include/linux/skmsg.h @@ -28,13 +28,14 @@ struct sk_msg_sg { u32 end; u32 size; u32 copybreak; - bool copy[MAX_MSG_FRAGS]; + unsigned long copy; /* The extra element is used for chaining the front and sections when * the list becomes partitioned (e.g. end < start). The crypto APIs * require the chaining. */ struct scatterlist data[MAX_MSG_FRAGS + 1]; }; +static_assert(BITS_PER_LONG >= MAX_MSG_FRAGS); /* UAPI in filter.c depends on struct sk_msg_sg being first element. */ struct sk_msg { @@ -227,7 +228,7 @@ static inline void sk_msg_compute_data_pointers(struct sk_msg *msg) { struct scatterlist *sge = sk_msg_elem(msg, msg->sg.start); - if (msg->sg.copy[msg->sg.start]) { + if (test_bit(msg->sg.start, &msg->sg.copy)) { msg->data = NULL; msg->data_end = NULL; } else { @@ -246,7 +247,7 @@ static inline void sk_msg_page_add(struct sk_msg *msg, struct page *page, sg_set_page(sge, page, len, offset); sg_unmark_end(sge); - msg->sg.copy[msg->sg.end] = true; + __set_bit(msg->sg.end, &msg->sg.copy); msg->sg.size += len; sk_msg_iter_next(msg, end); } @@ -254,7 +255,10 @@ static inline void sk_msg_page_add(struct sk_msg *msg, struct page *page, static inline void sk_msg_sg_copy(struct sk_msg *msg, u32 i, bool copy_state) { do { - msg->sg.copy[i] = copy_state; + if (copy_state) + __set_bit(i, &msg->sg.copy); + else + __clear_bit(i, &msg->sg.copy); sk_msg_iter_var_next(i); if (i == msg->sg.end) break; diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index af4f265d0f67..27f6b046cf92 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -13,6 +13,7 @@ #include <linux/completion.h> #include <linux/scatterlist.h> #include <linux/gpio/consumer.h> +#include <linux/ptp_clock_kernel.h> struct dma_chan; struct property_entry; @@ -409,6 +410,12 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * @fw_translate_cs: If the boot firmware uses different numbering scheme * what Linux expects, this optional hook can be used to translate * between the two. + * @ptp_sts_supported: If the driver sets this to true, it must provide a + * time snapshot in @spi_transfer->ptp_sts as close as possible to the + * moment in time when @spi_transfer->ptp_sts_word_pre and + * @spi_transfer->ptp_sts_word_post were transmitted. + * If the driver does not set this, the SPI core takes the snapshot as + * close to the driver hand-over as possible. * * Each SPI controller can communicate with one or more @spi_device * children. These make a small bus, sharing MOSI, MISO and SCK signals @@ -604,6 +611,15 @@ struct spi_controller { void *dummy_tx; int (*fw_translate_cs)(struct spi_controller *ctlr, unsigned cs); + + /* + * Driver sets this field to indicate it is able to snapshot SPI + * transfers (needed e.g. for reading the time of POSIX clocks) + */ + bool ptp_sts_supported; + + /* Interrupt enable state during PTP system timestamping */ + unsigned long irq_flags; }; static inline void *spi_controller_get_devdata(struct spi_controller *ctlr) @@ -644,6 +660,14 @@ extern struct spi_message *spi_get_next_queued_message(struct spi_controller *ct extern void spi_finalize_current_message(struct spi_controller *ctlr); extern void spi_finalize_current_transfer(struct spi_controller *ctlr); +/* Helper calls for driver to timestamp transfer */ +void spi_take_timestamp_pre(struct spi_controller *ctlr, + struct spi_transfer *xfer, + const void *tx, bool irqs_off); +void spi_take_timestamp_post(struct spi_controller *ctlr, + struct spi_transfer *xfer, + const void *tx, bool irqs_off); + /* the spi driver core manages memory for the spi_controller classdev */ extern struct spi_controller *__spi_alloc_controller(struct device *host, unsigned int size, bool slave); @@ -753,6 +777,35 @@ extern void spi_res_release(struct spi_controller *ctlr, * @transfer_list: transfers are sequenced through @spi_message.transfers * @tx_sg: Scatterlist for transmit, currently not for client use * @rx_sg: Scatterlist for receive, currently not for client use + * @ptp_sts_word_pre: The word (subject to bits_per_word semantics) offset + * within @tx_buf for which the SPI device is requesting that the time + * snapshot for this transfer begins. Upon completing the SPI transfer, + * this value may have changed compared to what was requested, depending + * on the available snapshotting resolution (DMA transfer, + * @ptp_sts_supported is false, etc). + * @ptp_sts_word_post: See @ptp_sts_word_post. The two can be equal (meaning + * that a single byte should be snapshotted). + * If the core takes care of the timestamp (if @ptp_sts_supported is false + * for this controller), it will set @ptp_sts_word_pre to 0, and + * @ptp_sts_word_post to the length of the transfer. This is done + * purposefully (instead of setting to spi_transfer->len - 1) to denote + * that a transfer-level snapshot taken from within the driver may still + * be of higher quality. + * @ptp_sts: Pointer to a memory location held by the SPI slave device where a + * PTP system timestamp structure may lie. If drivers use PIO or their + * hardware has some sort of assist for retrieving exact transfer timing, + * they can (and should) assert @ptp_sts_supported and populate this + * structure using the ptp_read_system_*ts helper functions. + * The timestamp must represent the time at which the SPI slave device has + * processed the word, i.e. the "pre" timestamp should be taken before + * transmitting the "pre" word, and the "post" timestamp after receiving + * transmit confirmation from the controller for the "post" word. + * @timestamped_pre: Set by the SPI controller driver to denote it has acted + * upon the @ptp_sts request. Not set when the SPI core has taken care of + * the task. SPI device drivers are free to print a warning if this comes + * back unset and they need the better resolution. + * @timestamped_post: See above. The reason why both exist is that these + * booleans are also used to keep state in the core SPI logic. * * SPI transfers always write the same number of bytes as they read. * Protocol drivers should always provide @rx_buf and/or @tx_buf. @@ -842,6 +895,14 @@ struct spi_transfer { u32 effective_speed_hz; + unsigned int ptp_sts_word_pre; + unsigned int ptp_sts_word_post; + + struct ptp_system_timestamp *ptp_sts; + + bool timestamped_pre; + bool timestamped_post; + struct list_head transfer_list; }; diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index dc60d03c4b60..86f9464c3f5d 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -92,6 +92,7 @@ struct stmmac_dma_cfg { int fixed_burst; int mixed_burst; bool aal; + bool eame; }; #define AXI_BLEN 7 |
