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path: root/drivers/net/ethernet/brocade
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* drivers/net: Add module.h to drivers who were implicitly using itPaul Gortmaker2011-10-311-0/+1
| | | | | | | | The device.h header was including module.h, making it present for most of these drivers. But we want to clean that up. Call out the include of module.h in the modular network drivers. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* net: add skb frag size accessorsEric Dumazet2011-10-191-3/+3
| | | | | | | | | | | To ease skb->truesize sanitization, its better to be able to localize all references to skb frags size. Define accessors : skb_frag_size() to fetch frag size, and skb_frag_size_{set|add|sub}() to manipulate it. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Remove unnecessary driver assignments of ethtool_ringparam fields to zeroRick Jones2011-10-071-4/+0
| | | | | | | | | | Per comments from Ben Hutchings on a previous patch, sweep the floors a little removing unnecessary assignments of zero to fields of struct ethtool_ringparam in driver code supporting ethtool -g. Signed-off-by: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Multiple Definition and Interface Setup FixRasesh Mody2011-10-043-3/+6
| | | | | | | | | | | | | | | | drivers/net/built-in.o: In function `bfa_ioc_ct2_poweron': (.text+0xcdc90): multiple definition of `bfa_ioc_ct2_poweron' drivers/scsi/built-in.o:(.text+0x17f9a0): first defined here This patch renames bfa_ioc_ct2_poweron() to bfa_nw_ioc_ct2_poweron() to avoid multiple definition with Brocade scsi driver. It also modifies asic specific interface setup to allocate MSIX resources at power on in case of 1860 HW with no asic block and warns if the asic gen is neither BFI_ASIC_GEN_CT nor BFI_ASIC_GEN_CT2. Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Driver Version changed to 3.0.2.2Rasesh Mody2011-09-291-1/+1
| | | | | | Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Add Callback to Fix RXQ StopRasesh Mody2011-09-294-1/+38
| | | | | | | | | | | | | | | | | Change details: - Add a callback in the BNA, which is called before sending FW command to stop RxQs. After this callback is called, driver should not post anymore Rx buffers to the RxQ. This addresses a small window where driver posts Rx buffers while FW is stopping/has stopped the RxQ. - Registering callback function, rx_stall_cbfn, during bna_rx_create. Invoking callback function, rx_stall_cbfn, before sending rx_cfg_clr command to FW - Bnad_cb_rx_stall implementation - set a flag in the Rxq to mark buffer posting disabled state. While posting buffers check for the above flag. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: PLL Init Fix and Add Stats AttributesRasesh Mody2011-09-295-33/+33
| | | | | | | | | | | Change details: - Fix to release soft reset in PLL init for HW - Added stats attributes and new bfi msg class - Removed some unused code and typo fixes Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Brocade 1860 HW EnablementRasesh Mody2011-09-295-2/+51
| | | | | | | | | | This patch enables new HW Brocade 1860. Add BFA_CM_NIC capability mask to bfa_ioc_attr, Sub-System Device ID Info and support for Brocade 1860 device ID to bfa_ioc.c and bnad.c. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Implement FW Download for New HWRasesh Mody2011-09-295-10/+48
| | | | | | | | | Add new device ID 0x22 and new asic generation BFI_ASIC_GEN_CT2 for 1860. Implement FW download from user space for new Brocade HW. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Capability Map and MFG Block Changes for New HWRasesh Mody2011-09-292-38/+18
| | | | | | | | | | | | Add capability map and generic model name scheme for manufacturing block. Add card types for new HW. Remove bfa_mfg_is_card_type_valid and ibfa_mfg_adapter_prop_init_flash_ct macros. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Brocade 1860 IOC PLL, Reg Defs and ASIC Mode ChangesRasesh Mody2011-09-293-16/+394
| | | | | | | | | | | | | | Add logic to set ASIC specfic interface in IOC, HW interface initialization APIs, mode based initialization and MSI-X resource allocation for 1860 with no asic block. Add new h/w specific register definitions and setup registers used by IOC logic. Use normal kernel declaration style, c99 initializers and const for mailbox structures. Remove unneeded parentheses. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: PCI Probe Conf Lock FixRasesh Mody2011-09-211-0/+1
| | | | | | | | | | If register_netdev() fails now, then we call mutex_unlock(&bnad->conf_mutex); on the error path, but it's already unlocked. So we acquire the lock in error path which will be later unlocked after the cleanup. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Eliminate Small Race Condition Window in RX PathRasesh Mody2011-09-171-2/+3
| | | | | | | | | | | | | | | Change details: - In a continuous sequence of ifconfig up/down operations, there is a small window of race between bnad_set_rx_mode() and bnad_cleanup_rx() while the former tries to access rx_info->rx & the latter sets it to NULL. This race could lead to bna_rx_mode_set() being called with a NULL (rx_info->rx) pointer and a crash. - Hold bnad->bna_lock while setting / unsetting rx_info->rx in bnad_setup_rx() & bnad_cleanup_rx(), thereby eliminating the race described above. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Set Ring Param FixRasesh Mody2011-09-171-2/+3
| | | | | | | | | | When Rx queue size is changed, queues are torn down and setup with the new queue size. During this operation, clear promiscuous mode and restore the original VLAN filter. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Semaphore Lock FixRasesh Mody2011-09-171-1/+1
| | | | | | | | | | | | Remove a BUG_ON() as it is not required. Change the unconditional write to release a semaphore to read sem first and then write. This will eliminate the possibility of sem getting locked while trying to release it in case if previous sem_get operation failed. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: make function tables contstephen hemminger2011-09-165-43/+36
| | | | | | | | | | To prevent malicious usage, all tables of pointers must be const. Compile tested only. Gleaned for PAX. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ../netdev-next/David S. Miller2011-09-161-2/+2
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| * bna: convert to SKB paged frag API.Ian Campbell2011-08-301-2/+2
| | | | | | | | | | | | | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Rasesh Mody <rmody@brocade.com> Cc: Debashis Dutt <ddutt@brocade.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: Driver Version changed to 3.0.2.1Rasesh Mody2011-09-151-1/+1
| | | | | | | | | | | | Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: SKB PCI UNMAP FixRasesh Mody2011-09-151-27/+8
| | | | | | | | | | | | | | | | | | | | | | | | Change details: - Found a leak in sk_buff unmapping of PCI dma addresses where boundary conditions are not properly handled in freeing all Tx buffers. Freeing of all Tx buffers is done considering sk_buffs data and fragments can be mapped at the boundary. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: TX Queue Depth FixRasesh Mody2011-09-152-4/+8
| | | | | | | | | | | | | | | | | | | | sk_buff unmap_array grows greater than 65536 (x2) with Tx ring of 65536. Reducing TXQ depth and safe(max) acking of Tx events to 32768 (same as Rx). Add defines for TX and RX queue depths. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: MBOX IRQ Flag Check after LockingRasesh Mody2011-09-151-7/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | Change details: - Check the BNAD_RF_MBOX_IRQ_DISABLED flag after acquiring the bna_lock, since checking the flag and executing bna_mbox_handler needs to be atomic. If not, it opens up window where flag is reset when it was checked, but got set while spinning on the lock by the other thread which is actually holding the lock Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: Async Mode Tx Rx Init FixRasesh Mody2011-09-153-7/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change details: - Async mode of Tx/Rx queue initialization in BNAD from a task queue context runs into non-unique taskq allocation issues. Get rid of Tx/Rx initialization from task q context - In the attach function, wait for IOC enable, then do Tx/Rx queue initialization. Default BNA attributes are used when IOC enable from attach fails and values are set to: 1 TxQ, 1 RxQ, 1 Unicast MAC, 1 RIT entry Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: Ethtool Enhancements and FixRasesh Mody2011-09-153-19/+92
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change details: - Add tx_skb counters and NAPI debug counters to ethtool stats. - Add rlb stats strings to bnad_net_stats_strings{} array. rlb_stats field was added to struct bfi_enet_stats {} but the corresponding name structure array for ethtool was not initialized with right strings, even though the actual name structure array got expanded. This caused a NULL pointer violation and a crash when doing ehtool -S <if_name>. - Modify dim timer stop logic to make it dependent on cfg and run flags - While setting the ring parameter restore the rx, vlan configuration and set rx mode - Indentation fix Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: Initialization and Locking FixRasesh Mody2011-09-152-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | Change details: - Initialize rx_id to 0 for bnad_cleanup_rx - Return -ENOMEM in case if bna_rx_create fails - Count the Rx buffer allocation failures in bnad_alloc_n_post_rxbufs() - Remove unnecessary initialization of using_dac to false in bnad_pci_probe - Release lock if error while doing bna_num_txq_set in bnad_pci_probe Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: Formatting and Code CleanupRasesh Mody2011-09-158-107/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change details: - Print log messages when running with reduced number of MSI-X vectors and when defaulting to INTx mode. - Remove BUG_ONs and header file inclusion that are not needed - Comments addition/cleanup - Unused code cleanup - Add New Line to Print msg in bfa_sm_fault - Formatting fix Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: TX Path and RX Path ChangesRasesh Mody2011-09-152-95/+191
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change details: - Add bnad_pci_unmap_skb() API to unmap skb from transmit path and update the unmap index. Add more checks for illegal skbs in transmit path. Add tx_skb counters for dropped skbs. - The unmap_cons index used in bnad_free_txbufs() is incorrectly declared as u16. It quickly wraps around and accesses null sk_buff ptr. So using u32 to handle unmap_array. - Disable and enable interrupts from the same polling context to prevent reordering in Rx path. - Add Rx NAPI debug counters. - Make NAPI budget check more generic. - Modify dim timer stop logic to make it dependent on cfg and run flags - Handle reduced MSI-X vectors case in bnad_enable_msix. - Check for single frame TSO skbs and send them out as non-TSO. - Put memory barrier after bna_txq_prod_indx_doorbell(). Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: Interrupt Polling and NAPI Init ChangesRasesh Mody2011-09-152-30/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change details: - Remove unnecessary ccb check from bnad_poll_cq - Add bnad pointer to rx_ctrl structure, so that bnad can be accessed directly from rx_ctrl in the NAPI poll routines, even if ccb is NULL - Validate ccb before referencing to it in bnad_msix_rx and bnad_napi_poll_rx - Fix the order of NAPI init / uninit in Tx / Rx setup / teardown path: a. Kill bnad tx free tasklet ahead of call to bna_tx_destroy() b. Call NAPI disable only after call to Rx free_irq(). This makes sure Rx interrupt does not schedule a poll when NAPI is already disabled - NAPI poll runs before the h/w has completed configuration. This causes a crash. Delay enabling NAPI till after bna_rx_enable(). Split NAPI initialization into 2 steps, bnad_napi_init() & bnad_napi_enable(). Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: PCI Probe FixRasesh Mody2011-09-151-1/+7
| | | | | | | | | | | | | | | | | | | | Change details: - Return error as -EIO if bnad_res_alloc fails - Release the configuration lock before registering with net_device layer. Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bna: Naming Change and Minor Macro FixRasesh Mody2011-09-154-19/+21
|/ | | | | | | | | | | | Naming changes: rename devid, BNAD_MAX_TXS, BNAD_MAX_RXS, BNAD_MAX_RXPS_PER_RX to device, BNAD_MAX_TX, BNAD_MAX_RX, BNAD_MAX_RXP_PER_RX respectively and change all the references. Macro Fix: Add ioc_isr_mod_set check to bfa_nw_ioc_mbox_regisr macro Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com> Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net/ethernet/*: Enabled vendor Kconfig optionsJeff Kirsher2011-08-271-0/+1
| | | | | | | | | | | | | | Based on finds for Stephen Rothwell, where current defconfig's enable a ethernet driver and it is not compiled due to the newly added NET_VENDOR_* component of Kconfig. This patch enables all the "new" Kconfig options so that current defconfig's will continue to compile the expected drivers. In addition, by enabling all the new Kconfig options does not add any un-expected options. CC: Stephen Rothwll <sfc@canb.auug.org.au> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* bna: off by one in bfa_msgq_rspq_pi_update()Dan Carpenter2011-08-261-1/+1
| | | | | | | | | The rspq->rsphdlr[] array has BFI_MC_MAX elements, so this test was off by one. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: unlock on error path in pnad_pci_probe()Dan Carpenter2011-08-261-2/+2
| | | | | | | | | We introduced a new lock here, so there was error path which needs an unlock now. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: remove use of ndo_set_multicast_list in driversJiri Pirko2011-08-171-1/+0
| | | | | | | replace it by ndo_set_rx_mode Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Driver Version changed to 3.0.2.0Rasesh Mody2011-08-111-1/+1
| | | | | Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Remove Obsolete FilesRasesh Mody2011-08-115-9194/+0
| | | | | | | | | Change details: - Removec bfi_ll.h bna_hw.h bna_ctrl.c and bna_txrx.c due to ENET, MSGQ and TXRX changes for new FW Driver interface and TX RX re-design. Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Remove Unused CodeRasesh Mody2011-08-116-388/+2
| | | | | | | Remove unused code. Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: ENET and Tx Rx Redesign EnablementRasesh Mody2011-08-1113-743/+1337
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change details: This patch contains additional structure and function definition changes that are required to enable the new msgq/enet/txrx redesign introduced by the previous 4 patches. - structure and function definition changes to header files as a result of Ethport, Enet, IOCEth, Tx, Rx redesign. - ethtool changes to use new enet function and definitions - Set number of Tx and Rx queues bassed on underlying hardware. Define separate macros for maximum and supported numbers of Tx and Rx queues based on underlying hardware. Take VLAN header into account for MTU calculation. Default to INTx mode when pci_enable_msix() fails. Set a bit in Rx poll routine, check and wait for that bit to be cleared in the cleanup routine before proceeding. - The TX and Rx coalesce settings are programmed in steps of 5 us. The value that are not divisible by 5 are rounded to the next lower number. This was causing the value os 1 to 4 to be rounded to 0, which is an invalid setting. When creating Rx and Tx object, we are currently assigning the default values of Rx and Tx coalescing_timeo. If these values are changed in the driver to a different value, the change is lost during such operations as MTU change. In order to avoid that, pass the configured value of coalescing_timeo before Rx and Tx object creation. Fix bnad_tx_coalescing_timeo_set() so it applies to all the Tx objects. - Reorg uninitialization path in case of pci_probe failure. - Hardware clock setup changes to pass asic generation, port modes and asic mode as part firmware boot parameters to firmware. - FW mailbox interface changes to defined asic specific mailbox interfaces. h/w mailbox interfaces take 8-bit FIDs and 2-bit port id for owner. Cleaned up mailbox definitions and usage for new and old HW. Eliminated usage of ASIC ID. MSI-X vector assignment and programming done by firmware. Fixed host offsets for CPE/RME queue registers. - Implement polling mechanism for FW ready to have poll mechanism replaces the current interrupt based FW READY method. The timer based poll routine in IOC will query the ioc_fwstate register to see if there is a state change in FW, and sends the READY event. Removed infrastructure needed to support mbox READY event from fw as well as IOC code. - Move FW init to HW init. Handle the case where PCI mapping goes away when IOCPF state machine is waiting for semaphore. - Add IOC mbox call back to client indicating that the command is sent. Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Add New HW DefsRasesh Mody2011-08-111-0/+413
| | | | | | | | | | Change details: - Add new file bna_hw_defs.h to support new code MSGQ, ENET and TX RX redign. This makes bna_hw.h obsolete and is removed in a later patch. bna_hw_defs.h removes all unused HW register definition that were part of bna_hw.h. Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Tx and Rx RedesignRasesh Mody2011-08-111-0/+3787
| | | | | | | | | | | | | | | | | | | Change details: - This patch contains the changes as a result of redesigning of Tx, Rx data path setup. In the old design, setting up Txqs, Rxqs were done in the driver. With the new design, most of the hardware setup steps for the Txq, Rxqs are moved to FW. Host driver issues commands to FW through the message queue to setup/teardown tx, rx data path. FW performs necessary steps and responds back to the driver with a status. - As a result of this redesign, the state machine implementation for Tx, Rx objects have changed significantly. Instead of doing the raw register access, these state machines mostly send a command to FW and wait for response and take the next action. In addition to tx, rx datapath setup, this patch also deals with rx filter configuration - such as unicast address, multicast address, vlan filter, promiscuous mode etc. Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Introduce ENET as New Driver and FW InterfaceRasesh Mody2011-08-112-0/+3030
| | | | | | | | | | | | | | | | | | | Change details: - This patch contains the messages, opcodes and structure format for the messages and responses exchanged between driver and the FW. In addition this patch contains the state machine implementation for Ethport, Enet, IOCEth. - Ethport object is responsible for receiving link state events, sending port enable/disable commands to FW. - Enet object is responsible for synchronizing initialization/teardown of tx & rx datapath configuration. - IOCEth object is responsible for init/un-init of IO Controller in the adapter which runs the FW. - This patch also contains code for initialization and resource assignment for Ethport, Enet, IOCEth, Tx, Rx objects. Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: MSGQ ImplementationRasesh Mody2011-08-117-9/+918
| | | | | | | | | | | | | | | | | | | | Change details: - Currently modules communicate with the FW using 32 byte command and response register. This limits the size of the command and response messages exchanged with the FW to 32 bytes. We need a mechanism to exchange the comamnds and responses exchange with FW that exceeds 32 bytes. - MSGQ implementation provides that facility. It removes the assumption that command/response queue size is precisely calculated to accommodate all concurrent FW commands/responses. The queue depth is made variable now, defined by a macro. A waiting command list is implemented to hold all the commands when there is no place in the command queue. Callback is implemented for each command entry to invoke the module posting the command, when there is space in the command queue and the command was finally posted to the queue. Module/Object information is embedded in the response for tracking purpose. Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bna: Move the Brocade driverJeff Kirsher2011-08-1128-0/+21185
Moves the Brocade driver into drivers/net/ethernet/brocade/ and make the necessary Kconfig and Makefile changes. CC: Rasesh Mody <rmody@brocade.com> CC: Debashis Dutt <ddutt@brocade.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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