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* Merge branch 'master' of ↵David S. Miller2009-06-151-0/+18
|\ | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: Documentation/feature-removal-schedule.txt drivers/scsi/fcoe/fcoe.c net/core/drop_monitor.c net/core/net-traces.c
| * [SCSI] bnx2: Add support for CNIC driver.Michael Chan2009-06-091-0/+18
| | | | | | | | | | | | | | | | | | Add interface and functions to support a new CNIC driver to drive the Broadcom bnx2 hardware for iSCSI offload. Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* | bnx2: bnx2_tx_int() optimizationsEric Dumazet2009-05-171-0/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using bnx2 in a high transmit load, bnx2_tx_int() cost is pretty high. There are two reasons. One is an expensive call to bnx2_get_hw_tx_cons(bnapi) for each freed skb One is cpu stalls when accessing skb_is_gso(skb) / skb_shinfo(skb)->nr_frags because of two cache line misses. (One to get skb->end/head to compute skb_shinfo(skb), one to get is_gso/nr_frags) This patch : 1) avoids calling bnx2_get_hw_tx_cons(bnapi) too many times. 2) makes bnx2_start_xmit() cache is_gso & nr_frags into sw_tx_bd descriptor. This uses a litle bit more ram (256 longs per device on x86), but helps a lot. 3) uses a prefetch(&skb->end) to speedup dev_kfree_skb(), bringing cache line that will be needed in skb_release_data() result is 5 % bandwidth increase in benchmarks, involving UDP or TCP receive & transmits, when a cpu is dedicated to ksoftirqd for bnx2. bnx2_tx_int going from 3.33 % cpu to 0.5 % cpu in oprofile Note : skb_dma_unmap() still very expensive but this is for another patch, not related to bnx2 (2.9 % of cpu, while it does nothing on x86_32) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bnx2: Use request_firmware()Michael Chan2009-04-041-36/+35
| | | | | | | | | | | | | | | | Based on original patch by Ben Hutchings <ben@decadent.org.uk> and Bastian Blank <waldi@debian.org>, with the following main changes: Separated the mips firmware and rv2p firmware into different files to make it easier to update them separately. Added some code to fixup the rv2p code with run-time information such as PAGE_SIZE. Update version to 2.0.0. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bnx2: Update version to 1.9.2 and copyright.Michael Chan2009-02-121-1/+1
| | | | | Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bnx2: Don't redefine FLOW_CTRL_{RX,TX}.David S. Miller2008-12-161-3/+0
| | | | | | They are provided generically by linux/mii.h now. Signed-off-by: David S. Miller <davem@davemloft.net>
* bnx2: Rename MSI-X vectors.Michael Chan2008-12-161-1/+1
| | | | | | | | Change MSI-X vector names to "ethx-%d". 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>
* Merge branch 'master' of ↵David S. Miller2008-12-051-0/+6
|\ | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-core.c drivers/net/wireless/iwlwifi/iwl-sta.c
| * bnx2: Add workaround to handle missed MSI.Michael Chan2008-12-031-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bnx2 chips do not support per MSI vector masking. On 5706/5708, new MSI address/data are stored only when the MSI enable bit is toggled. As a result, SMP affinity no longer works in the latest kernel. A more serious problem is that the driver will no longer receive interrupts when the MSI receiving CPU goes offline. The workaround in this patch only addresses the problem of CPU going offline. When that happens, the driver's timer function will detect that it is making no forward progress on pending interrupt events and will recover from it. Eric Dumazet reported the problem. We also found that if an interrupt is internally asserted while MSI and INTA are disabled, the chip will end up in the same state after MSI is re-enabled. The same workaround is needed for this problem. Signed-off-by: Michael Chan <mchan@broadcom.com> Tested-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bnx2: use net_device_stats nowadays available in net_deviceIlpo Järvinen2008-11-281-2/+0
| | | | | | | | | | Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bnx2: Reorganize timeout constants.Michael Chan2008-11-121-7/+7
| | | | | | | | | | | | | | | | | | | | Move all related timeout constants to the same location. BNX2 prefix is also added to make them more consistent. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bnx2: Set rx buffer water marks based on MTU.Michael Chan2008-11-121-0/+21
|/ | | | | | | | | | | The default rx buffer water marks for XOFF/XON are for 1500 MTU. At larger MTUs, these water marks need to be adjusted for effective flow control. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bnx2: Handle DMA mapping errors.Benjamin Li2008-10-091-2/+6
| | | | | | | | | | | | Before, the driver would not care about the return codes from pci_map_* functions. This could be potentially dangerous if a mapping failed. Now, we will check all pci_map_* calls. On the transmit side, we switch to use the new function skb_dma_map(). On the receive side, we add pci_dma_mapping_error(). 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>
* Merge branch 'master' of ↵David S. Miller2008-10-011-1/+1
|\ | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/ath9k/core.c drivers/net/wireless/ath9k/main.c net/core/dev.c
| * bnx2: Promote vector field in bnx2_irq structure from u16 to unsigned intBenjamin Li2008-09-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bnx2 driver stores/uses the irq value from the pci_dev internally. But when it stores the irq value, it has been performing an integer demotion. Because of the recent changes made to arch/x86/kernel/io_apic.c, the new method in creating the irq value (using build_irq_for_pci_dev()) has exposed this bug on x86 systems. Because of this demotion when calling request_irq() from bnx2_request_irq(), the driver would get a return code of -EINVAL. This is because the kernel could not find the requested irq descriptor. By storing the irq value properly, the kernel can find the correct irq descriptor and the bnx2 driver can operate normally. 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>
* | bnx2: Remove timer_interval field from the bnx2 structureBenjamin Li2008-09-181-1/+2
| | | | | | | | | | | | | | | | | | | | | | The timer_interval field is only assigned once, and never reassigned. We can safely replace all instances of the timer_interval with a constant value. Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bnx2: Remove name field from bnx2 structureBenjamin Li2008-09-181-2/+0
|/ | | | | | | | | | | The name of the board is only used during the initialization of the adapter. We can save the space of a pointer by not storing this information. Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* bnx2: Add TX multiqueue support.Benjamin Li2008-07-181-0/+3
| | | | | | 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>
* bnx2: Support secondary MAC addresses.Benjamin Li2008-07-141-0/+5
| | | | | | | | | | | | | | Add support for configuring secondary unicast addresses. There are 4 additional perfect match filters which can be used for secondary unicast address support. * Modified bnx2_set_mac_addr() to be more generic in handling the setting of the perfect match filters * Changed bnx2_set_rx_mode() to handle the unicast dev_addr_list 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>
* bnx2: Allow flexible VLAN tag settings.Michael Chan2008-07-141-0/+6
| | | | | | | | | | Negotiate with boot code and ASF firmware to see if it can support keeping VLAN tags in the RX packets. If supported by firmware, the VLAN tag will be kept in the RX packet unless VLAN acceleration is registered. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bnx2: Turn on multi rx rings.Michael Chan2008-06-191-1/+25
| | | | | | | | | Enable multiple rx rings if MSI-X vectors are available. We enable up to 7 rx rings. 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>
* bnx2: Optimize fast-path tx and rx work.Michael Chan2008-06-191-3/+6
| | | | | | | | | | | | | | | | Add hw_tx_cons_ptr and hw_rx_cons_ptr to speed up the retreival of the tx and rx consumer index, since the MSI-X and default status blocks have different structures. Combine status_blk and status_blk_msix into a union. We'll only use one type of status block for each vector. Separate the code to detect more rx and tx work from the code to detect link related work. 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>
* bnx2: Put rx ring variables in a separate struct.Michael Chan2008-06-191-14/+24
| | | | | | | | | | | | | In preparation for multi-ring support, rx ring variables are now put in a separate bnx2_rx_ring_info struct. With MSI-X, we can support multiple rx rings. The functions to allocate/free rx memory and to initialize rx rings are now modified to handle multiple rings. 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>
* bnx2: Put tx ring variables in a separate struct.Michael Chan2008-06-191-16/+18
| | | | | | | | | | | | | | In preparation for multi-ring support, tx ring variables are now put in a separate bnx2_tx_ring_info struct. Multi tx ring will not be enabled until it is fully supported by the stack. Only 1 tx ring will be used at the moment. The functions to allocate/free tx memory and to initialize tx rings are now modified to handle multiple rings. 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>
* Merge branch 'master' of ↵David S. Miller2008-06-131-1/+0
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/smc911x.c
| * net: Eliminate flush_scheduled_work() calls while RTNL is held.David S. Miller2008-06-121-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the RTNL is held when we invoke flush_scheduled_work() we could deadlock. One such case is linkwatch, it is a work struct which tries to grab the RTNL semaphore. The most common case are net driver ->stop() methods. The simplest conversion is to instead use cancel_{delayed_}work_sync() explicitly on the various work struct the driver uses. This is an OK transformation because these work structs are doing things like resetting the chip, restarting link negotiation, and so forth. And if we're bringing down the device, we're about to turn the chip off and reset it anways. So if we cancel a pending work event, that's fine here. Some drivers were working around this deadlock by using a msleep() polling loop of some sort, and those cases are converted to instead use cancel_{delayed_}work_sync() as well. Signed-off-by: David S. Miller <davem@davemloft.net>
* | bnx2: Rename RX_COPY_THRESH to BNX2_RX_COPY_THRESH.Benjamin Li2008-05-161-1/+1
| | | | | | | | | | | | | | | | | | To make the bnx2 code more consistent, all instances of RX_COPY_THRESH have been changed to BNX2_RX_COPY_THRESH. 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>
* | bnx2: Remove the rx_offset field from the bnx2 structure.Benjamin Li2008-05-161-1/+1
|/ | | | | | | | | | | | | | The rx_offset field is set to a constant value and initialized only once. By replacing all references to the rx_offset field, we can eliminate rx_offset from the bnx2 structure. This will save 4 bytes for every bnx2 instance. [Added parentheses to the definition of BNX2_RX_OFFSET, as noted by Ben Hutchings.] 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>
* [BNX2]: Disable parallel detect on an HP blade.Michael Chan2008-02-231-0/+1
| | | | | | | | | Because of some board issues, we need to disable parallel detect on an HP blade. Without this patch, the link state can become stuck when it goes into parallel detect mode. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Fine-tune flow control on 5709.Michael Chan2008-01-311-1/+10
| | | | | | | | Make use of the programmable high/low water marks in 5709 for 802.3 flow control. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Remove CTX_WR macro.Michael Chan2008-01-311-7/+0
| | | | | | | The CTX_WR macro is unnecessary and obfuscates the code. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Remove REG_WR_IND/REG_RD_IND macros.Michael Chan2008-01-311-9/+0
| | | | | | | | | | The REG_WR_IND/REG_RD_IND macros are unnecessary and obfuscate the code. Many callers to these macros read and write shared memory from the bp->shmem_base, so we add 2 similar functions that automatically add the shared memory base. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Refine tx coalescing setup.Michael Chan2008-01-311-0/+9
| | | | | | | Make the tx coalescing setup code independent of the MSIX vector. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Fix 5706 serdes link down bug.Michael Chan2008-01-311-1/+2
| | | | | | | | 1. Correct the MII expansion serdes control register definition. 2. Check an additional RUDI_INVALID bit when determining 5706S link. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bnx2 annotationsAl Viro2008-01-281-1/+1
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [BNX2]: Fix driver phy_flags name space.Michael Chan2008-01-281-10/+10
| | | | | | | Prefix "bp->phy_flags" names with BNX2_PHY_FLAG_* for consistency. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Fix driver software flag namespace.David S. Miller2008-01-281-12/+13
| | | | | | Prefix "bnx2->flags" names with BNX2_* for consistency. Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Add link-down workaround on 5706 serdes.Michael Chan2008-01-281-0/+10
| | | | | | | | | | | | | In some blade systems using the 5706 serdes, the hardware sometimes does not properly generate link down interrupts. We add a workaround in the driver's timer to force a link-down when some PHY registers report loss of SYNC. The parallel detect logic is cleaned up slightly to better integrate the workaround. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Disable jumbo rx paging on 5709 Ax.Michael Chan2008-01-281-0/+1
| | | | | | | The chip has problem running in this mode and needs to be disabled. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Enable new tx ring.Michael Chan2008-01-281-1/+1
| | | | | | | | Enable new tx ring and add new MSIX handler and NAPI poll function for the new tx ring. Enable MSIX when the hardware supports it. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Add support for a new tx ring.Michael Chan2008-01-281-0/+5
| | | | | | | | | To separate TX IRQs into a different MSIX vector, we need to support a new tx ring. The original tx ring will still be used when not using MSIX. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Support multiple MSIX IRQs.Michael Chan2008-01-281-2/+38
| | | | | | | | Change bnx2_napi struct into an array and add code to manage multiple IRQs. MSIX hardware structures and new registers are also added. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Move rx indexes into bnx2_napi struct.Michael Chan2008-01-281-7/+8
| | | | | | | | Rx related fields used in NAPI polling are moved from the main bnx2 struct to the bnx2_napi struct. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Move tx indexes into bnx2_napi struct.Michael Chan2008-01-281-3/+3
| | | | | | | | Tx related fields used in NAPI polling are moved from the main bnx2 struct to the bnx2_napi struct. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Introduce new bnx2_napi structure.Michael Chan2008-01-281-5/+11
| | | | | | | | | | | | | Introduce a bnx2_napi structure that will hold a napi_struct and other fields to handle NAPI polling for the napi_struct. Various tx and rx indexes and status block pointers will be moved from the main bnx2 structure to this bnx2_napi structure. Most NAPI path functions are modified to be passed this bnx2_napi struct pointer. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Restructure IRQ datastructures.Michael Chan2008-01-281-0/+12
| | | | | | | | | Add a table to keep track of multiple IRQs and restructure the IRQ request and free functions so that they can be easily expanded to handle multiple IRQs. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Add fast path code to handle RX pages.Michael Chan2008-01-281-0/+2
| | | | | | | | | Add function to reuse a page in case of allocation or other errors. Add code to construct the completed SKB with the additional data in the pages. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Add init. code to handle RX pages.Michael Chan2008-01-281-0/+28
| | | | | | | | Add new fields to keep track of the pages and the page rings. Add functions to allocate and free pages. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Restructure RX ring init. code.Michael Chan2008-01-281-1/+7
| | | | | | | | | | | | Factor out the common functions that will be used to initialize the normal RX rings and the page rings. Change the copybreak constant RX_COPY_THRESH to 128. This same constant will be used for the max. size of the linear SKB when pages are used. Copybreak will be turned off when pages are used. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BNX2]: Add ring constants.Michael Chan2008-01-281-0/+5
| | | | | | | Define the various ring constants to make the code cleaner. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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