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path: root/drivers/net/bnx2.c
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2010-10-11bnx2: Enable AER on PCIE devices onlyMichael Chan
To prevent unnecessary error message. pci_save_state() is also moved to the end of ->probe() so that all PCI config, including AER state, will be saved. Update version to 2.0.18. Signed-off-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-11bnx2: Update firmware to 6.0.x.Michael Chan
- Improved flow control and simplified interface - Use hardware RSS indirection table instead of the slower firmware- based table - Lower latency interrupt on 5709 Signed-off-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27bnx2: Use netif_set_real_num_{rx,tx}_queues()Ben Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-26drivers/net: return operator cleanupEric Dumazet
Change "return (EXPR);" to "return EXPR;" return is not a function, parentheses are not required. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-02drivers/net: avoid some skb->ip_summed initializationsEric Dumazet
fresh skbs have ip_summed set to CHECKSUM_NONE (0) We can avoid setting again skb->ip_summed to CHECKSUM_NONE in drivers. Introduce skb_checksum_none_assert() helper so that we keep this assertion documented in driver sources. Change most occurrences of : skb->ip_summed = CHECKSUM_NONE; by : skb_checksum_none_assert(skb); Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-22bnx2: Add PCI Advanced Error Reporting support.John Feeney
Signed-off-by: John Feeney <jfeeney@redhat.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-19bnx2: Update version to 2.0.17.Michael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-19bnx2: Remove some unnecessary smp_mb() in tx fast path.Michael Chan
smp_mb() inside bnx2_tx_avail() is used twice in the normal bnx2_start_xmit() path (see illustration below). The full memory barrier is only necessary during race conditions with tx completion. We can speed up the tx path by replacing smp_mb() in bnx2_tx_avail() with a compiler barrier. The compiler barrier is to force the compiler to fetch the tx_prod and tx_cons from memory. In the race condition between bnx2_start_xmit() and bnx2_tx_int(), we have the following situation: bnx2_start_xmit() bnx2_tx_int() if (!bnx2_tx_avail()) BUG(); ... if (!bnx2_tx_avail()) netif_tx_stop_queue(); update_tx_index(); smp_mb(); smp_mb(); if (bnx2_tx_avail()) if (netif_tx_queue_stopped() && netif_tx_wake_queue(); bnx2_tx_avail()) With smp_mb() removed from bnx2_tx_avail(), we need to add smp_mb() to bnx2_start_xmit() as shown above to properly order netif_tx_stop_queue() and bnx2_tx_avail() to check the ring index. If it is not strictly ordered, the tx queue can be stopped forever. This improves performance by about 5% with 2 ports running bi-directional 64-byte packets. Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-19bnx2: Call pci_enable_msix() with actual number of vectors.Michael Chan
Based on original patch by Breno Leitão <leitao@linux.vnet.ibm.com>. Allocate the actual number of vectors and make use of fewer vectors if pci_enable_msix() returns > 0. We must allocate one additional vector for the cnic driver. Cc: Breno Leitão <leitao@linux.vnet.ibm.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-19bnx2: Use proper counter for net_device_stats->multicast.Michael Chan
We were using the wrong tx multicast counter instead of the rx multicast counter. Reported-by: Peter Snellman <peter.snellman@cinnober.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-18bnx2: use device model DMA APIStanislaw Gruszka
Use DMA API as PCI equivalents will be deprecated. This change also allow to allocate with GFP_KERNEL in some places. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-18bnx2: allocate with GFP_KERNEL flag on RX path initStanislaw Gruszka
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-08bnx2: 64 bit stats on all archesEric Dumazet
Now core network is able to handle 64 bit netdevice stats on 32 bit arches, we can provide them for bnx2, since hardware maintains some 64 bit counters. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-04bnx2: Update version to 2.0.16.Michael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-04bnx2: Dump some config space registers during TX timeout.Michael Chan
These config register values will be useful when the memory registers are returning 0xffffffff which has been reported. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-04bnx2: Add support for skb->rxhash.Michael Chan
Add skb->rxhash support for TCP packets only because the bnx2 RSS hash does not hash UDP ports. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-04bnx2: Always enable MSI-X on 5709.Michael Chan
Minor change to use MSI-X even if there is only one CPU. This allows the CNIC driver to always have a dedicated MSI-X vector to handle iSCSI events, instead of sharing the MSI vector. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-23Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/ipv4/ip_output.c
2010-06-17bnx2: fix dma_get_ops compilation breakageFUJITA Tomonori
This removes dma_get_ops() prefetch optimization in bnx2. bnx2 uses dma_get_ops() to see if dma_sync_single_for_cpu() is noop. bnx2 does prefetch if it's noop. But dma_get_ops() isn't available on all the architectures (only the architectures that uses dma_map_ops struct have it). Using dma_get_ops() in drivers leads to compilation breakage on many architectures. This patch removes dma_get_ops() and changes bnx2 to do prefetch on all the architectures. This adds useless prefetch on non-coherent architectures but this is harmless. It is also unlikely to cause the performance drop. [ Remove now unused local variable 'pdev' -DaveM ] Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-11bnx2: Fix compiler warning in bnx2_disable_forced_2g5().Michael Chan
drivers/net/bnx2.c: In function 'bnx2_disable_forced_2g5': drivers/net/bnx2.c:1489: warning: 'bmcr' may be used uninitialized in this function We fix it by checking return values from all bnx2_read_phy() and proceeding to do read-modify-write only if the read operation is successful. The related bnx2_enable_forced_2g5() is also fixed the same way. Reported-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-02bnx2: Fix hang during rmmod bnx2.Michael Chan
The regression is caused by: commit 4327ba435a56ada13eedf3eb332e583c7a0586a9 bnx2: Fix netpoll crash. If ->open() and ->close() are called multiple times, the same napi structs will be added to dev->napi_list multiple times, corrupting the dev->napi_list. This causes free_netdev() to hang during rmmod. We fix this by calling netif_napi_del() during ->close(). Also, bnx2_init_napi() must not be in the __devinit section since it is called by ->open(). Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17bnx2: Use netif_carrier_off() to prevent timeout.Michael Chan
Based on original patch from Stanislaw Gruszka <sgruszka@redhat.com>. Using netif_carrier_off() is better than updating all the ->trans_start on all the tx queues. netif_carrier_off() needs to be called after bnx2_disable_int_sync() to guarantee no race conditions with the serdes timers that can modify the carrier state. If the chip or phy is reset, carrier will turn back on when we get the link interrupt. If there is no reset, we need to turn carrier back on in bnx2_netif_start(). Again, the phy_lock prevents race conditions with the serdes timers. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17bnx2: Update 5709 MIPS firmware and version to 2.0.15.Michael Chan
New firmware fixes a performance regression on small packets. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17bnx2: Fix register printouts during NETEV_WATCHDOG.Eddie Wai
Dump the correct MCP registers and add EMAC_RX_STATUS register during NETDEV_WATCHDOG for debugging. Signed-off-by: Eddie Wai <waie@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-06bnx2: Add prefetches to rx path.Michael Chan
Add prefetches of the skb and the next rx descriptor to speed up rx path. Use prefetchw() for the skb [suggested by Eric Dumazet]. The rx descriptor is in skb->data which is mapped for streaming mode DMA. Eric Dumazet pointed out that we should not prefetch the data before dma_sync. So we prefetch only if dma_sync is no_op on the system. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-06bnx2: Add GRO support.Michael Chan
And turn on NETIF_F_GRO by default [requested by DaveM]. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-02Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-04-27bnx2: Update version to 2.0.9.Michael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27bnx2: Prevent "scheduling while atomic" warning with cnic, bonding and vlan.Michael Chan
The bonding driver calls ndo_vlan_rx_register() while holding bond->lock. The bnx2 driver calls bnx2_netif_stop() to stop the rx handling while changing the vlgrp. The call also stops the cnic driver which sleeps while the bond->lock is held and cause the warning. This code path only needs to stop the NAPI rx handling while we are changing the vlgrp. Since no reset is going to occur, there is no need to stop cnic in this case. By adding a parameter to bnx2_netif_stop() to skip stopping cnic, we can avoid the warning. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27bnx2: Fix lost MSI-X problem on 5709 NICs.Michael Chan
It has been reported that under certain heavy traffic conditions in MSI-X mode, the driver can lose an MSI-X vector causing all packets in the associated rx/tx ring pair to be dropped. The problem is caused by the chip dropping the write to unmask the MSI-X vector by the kernel (when migrating the IRQ for example). This can be prevented by increasing the GRC timeout value for these register read and write operations. Thanks to Dell for helping us debug this problem. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-07bnx2: use the dma state API instead of the pci equivalentsFUJITA Tomonori
The DMA API is preferred. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-06Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bonding/bond_main.c drivers/net/via-velocity.c drivers/net/wireless/iwlwifi/iwl-agn.c
2010-04-03net: convert multicast list to list_headJiri Pirko
Converts the list and the core manipulating with it to be the same as uc_list. +uses two functions for adding/removing mc address (normal and "global" variant) instead of a function parameter. +removes dev_mcast.c completely. +exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for manipulation with lists on a sandbox (used in bonding and 80211 drivers) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-23bnx2: Use proper handler during netpoll.Michael Chan
Netpoll needs to call the proper handler depending on the IRQ mode and the vector. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-23bnx2: Fix netpoll crash.Benjamin Li
The bnx2 driver calls netif_napi_add() for all the NAPI structs during ->probe() time but not all of them will be used if we're not in MSI-X mode. This creates a problem for netpoll since it will poll all the NAPI structs in the dev_list whether or not they are scheduled, resulting in a crash when we access structure fields not initialized for that vector. We fix it by moving the netif_napi_add() call to ->open() after the number of IRQ vectors has been determined. Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-28bnx2: Remove now useless VPD codeMatt Carlson
Now that the VPD searching code is abstracted away, the outer loop used to detect the read-only large resource data type section is useless. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-28pci: Add helper to search for VPD keywordsMatt Carlson
This patch adds the pci_vpd_find_info_keyword() helper function to find information field keywords within read-only and read-write large resource data type sections. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-28pci: Add VPD information field helper functionsMatt Carlson
This patch adds a preprocessor constant to describe the PCI VPD information field header size and an inline function to extract the size of the information field itself. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-28pci: Add helper to find a VPD resource data typeMatt Carlson
This patch adds the pci_vpd_find_tag() helper function to find VPD resource data types in a buffer. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-28pci: Add large and small resource data type codeMatt Carlson
This patch introduces more VPD preprocessor definitions to identify some small and large resource data type item names. The patch then continues to correct how the tg3 and bnx2 drivers search for the "read-only data" large resource data type. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-28pci: Add PCI LRDT tag size and section sizeMatt Carlson
This patch adds a preprocessor constant to describe the PCI VPD large resource data type tag size and an inline function to extract the large resource section size from the large resource data type tag. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-22net: convert multiple drivers to use netdev_for_each_mc_addr, part3Jiri Pirko
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17drivers/net/bnx2.c: Use (pr|netdev|netif)_<level> macro helpersJoe Perches
Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt Remove #define PFX Use pr_<level> Use netdev_<level> Use netif_<level> Remove periods from formats Coalesce long formats Coalesce some printks Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16bnx2: Update firmwares and update version to 2.0.8.Michael Chan
- Increase FTQ depth to 256 to ehnabce performance. - Fix RV2P context corruption on 5709 when flow control is enabled. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16bnx2: Fix bug when saving statistics.Patrick Rabau
This fixes the problem of dropping the carry when adding 2 32-bit values. Switch to use array indexing for better readability. Reported by and fix provided by Patrick Rabau. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16bnx2: Allow user-specified multiple advertisement speed values.Michael Chan
Remove unnecessary code that works around older versions of ethtool that can pass down invalid advertisement speed values. This old code prevents the user from specifying multiple advertisement values. The new code uses simple masking to mask out invalid advertisment bits. Reported-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16bnx2: Adjust flow control water marks.Michael Chan
The current water marks are too high and can cause unnecessary flow control frames. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16bnx2: Need to call cnic_setup_cnic_irq_info() after MTU change.Michael Chan
New status blocks are allocated during MTU change so we need to update this information for the cnic driver. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16bnx2: Check BNX2_FLAG_USING_MSIX flag when setting up MSIX.Michael Chan
Checking the flag is more correct than checking bp->irq_nvecs. By accident it is not a problem because we always have more than 1 vectors when using MSIX mode. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-12net: use netdev_mc_count and netdev_mc_empty when appropriateJiri Pirko
This patch replaces dev->mc_count in all drivers (hopefully I didn't miss anything). Used spatch and did small tweaks and conding style changes when it was suitable. Jirka Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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