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2009-04-07dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)Yang Hongyang1-2/+2
Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-27cxgb3: map entire Rx page, feed map+offset to Rx ring.Divy Le Ray2-35/+106
DMA mapping can be expensive in the presence of iommus. Reduce the Rx iommu activity by mapping an entire page, and provide the H/W the mapped address + offset of the current page chunk. Reserve bits at the end of the page to track mapping references, so the page can be unmapped. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-27cxgb3: differentiate portx and Tx channelsDivy Le Ray3-19/+24
Separate ports from H/W Tx channels. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-27cxgb3: use resource_size_t for mmio declarationsDivy Le Ray1-1/+4
Use resource_size_t to declare mmio start and len variables. Print PEX error register after EEH resumed. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-27cxgb3: sge setup fixesDivy Le Ray2-8/+39
Enable timestamps, update delayed ack threshold for iSCSI/iWARP traffic Remove the len flag in Tx requests. It might corrupt offload trace packets. Update SGE context setup to avoid potential H/W misprogrammation. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-27cxgb3: start qset timers when setup succeededDivy Le Ray3-4/+24
Start queue set reclaim timers after the queue sets have been allocated successfully. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13cxgb3: update driver versionDivy Le Ray1-1/+1
update driver version to 1.1.1-ko Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13cxgb3: update FWDivy Le Ray1-1/+1
Update FW to 7.1 Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13cxgb3: detect mac link faults.Divy Le Ray6-9/+285
The driver currently ignores the local or remote link faults raised at the mac layer. This patch fixes it. Our mac however only advertizes link events, so wait for the phy to stabilize the link, then enable mac link events interrupts. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13cxgb3: Update Rev3 mac workaroundDivy Le Ray1-39/+33
Update the heurstics workaround unlocking a hung mac: - reduce Tx mac toggling by enabling Tx drain before resetting the mac - Take Tx (lack of) activity in account only - Update the monitoring counter range to 64 bits Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13cxgb3: disable high freq non-data interruptsDivy Le Ray4-5/+86
Under RX pressure, The HW might generate a high load of interrupts to signal mac fifo or free lists overflow. Disable the interrupts, and poll the relevant status bits to maintain stats. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13cxgb3: separate TX and RX reclaim handlersDivy Le Ray2-40/+89
Separate TX and RX reclaim handlers Don't disable interrupts in RX reclaim handler. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13cxgb3: prefetch buffer access in GRO modeDivy Le Ray1-0/+3
Elmininate a cache miss when accessing the CPL header within the first aggregated buffer. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13cxgb3: fix skb truesize in jumbo modeDivy Le Ray1-1/+2
Update skb truesize correctly for the 2nd buffer from a Jumbo frame Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13cxgb3: release page ref on mapping errorDivy Le Ray1-12/+14
Release page chunk reference in case we fail to map it. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13cxgb3: ring rx door bell less frequentlyDivy Le Ray2-8/+25
Ring free lists door bell less frequently, specifically every quarter of the active FL size. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-24Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller2-0/+8
2009-02-18cxgb3: Add support for PCI ID 0x35.Divy Le Ray2-0/+8
Add support for adapters with a PCI id equal to 0x35. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-17drivers/net/cxgb3: fix sparse warnings: fix signednessHannes Eder1-1/+2
Fix this sparse warning: drivers/net/cxgb3/ael1002.c:1010:60: warning: incorrect type in argument 4 (different signedness) Signed-off-by: Hannes Eder <hannes@hanneseder.net> Acked-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-17drivers/net/cxgb3: fix sparse warning: symbol shadows an earlier oneHannes Eder1-2/+1
Impact: Move variable declaration as close to usage as possible. Fix this sparse warning: drivers/net/cxgb3/cxgb3_main.c:1586:21: warning: symbol 'cap' shadows an earlier one Signed-off-by: Hannes Eder <hannes@hanneseder.net> Acked-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-04Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6David S. Miller1-2/+1
2009-02-04cxgb3: Fix lro switchDivy Le Ray1-2/+1
The LRO switch is always set to 1 in the rx processing loop. It breaks the accelerated iSCSI receive traffic. Fix its computation. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-27net: Add skb_record_rx_queue() calls to multiqueue capable drivers.David S. Miller1-0/+1
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-26cxgb3: Notify fatal errorsDivy Le Ray3-4/+28
Set up a notification mechanism to inform upper layer modules (iWARP, iSCSI) of a chip reset due to an EEH event or a fatal error. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21cxgb3: Replace LRO with GROHerbert Xu3-152/+22
This patch makes cxgb3 invoke the GRO hooks instead of LRO. As GRO has a compatible external interface to LRO this is a very straightforward replacement. I've kept the ioctl controls for per-queue LRO switches. However, we should not encourage anyone to use these. Because of that, I've also kept the skb construction code in cxgb3. Hopefully we can phase out those per-queue switches and then kill this too. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21cxgb3: ease msi-x settings conditionsDivy Le Ray2-8/+16
The driver currently drops to line interrupt mode if it did not get all the msi-x vectors it requested. Allow msi-x settings when a minimal amount of vectors is provided. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-19cxgb3: Fix LRO misalignmentDivy Le Ray1-0/+1
The lro manager's frag_align_pad setting was missing, leading to misaligned access to the skb passed up to the stack. Tested-by: Rick Jones <rick.jones2@hp.com> Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-11cxgb3: Keep LRO off if disabled when interface is downRoland Dreier3-10/+21
I have a system with a Chelsio adapter (driven by cxgb3) whose ports are part of a Linux bridge. Recently I updated the kernel and discovered that things stopped working because cxgb3 was doing LRO on packets that were passed into the bridge code for forwarding. (Incidentally, this problem manifested itself in a strange way that made debugging a bit interesting -- for some reason, the skb_warn_if_lro() check in bridge didn't trigger and these LROed packets were forwarded out a forcedeth interface, and caused the forcedeth transmit path to get stuck) This is because cxgb3 has no way of keeping state for the LRO flag until the interface is brought up, so if the bridging code disables LRO while the interface is down, then cxgb3_up() will just reenable LRO, and on my Debian system at least, the init scripts add interfaces to a bridge before bringing the interfaces up. Fix this by keeping track of each interface's LRO state in cxgb3 so that when bridge disables LRO, it stays disabled in cxgb3_up() when the interface is brought up. I did this by changing the rx_csum_offload flag into a pair of bit flags; the effect of this on the rx_eth() fast path is miniscule enough that it should be fine (eg on x86, a cmpb instruction becomes a testb instruction). Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26cxgb3: add control to access embedded imagesDivy Le Ray2-0/+19
Update contol path between cxgb3 and ULP modules (iWARP, iSCSI) to provide access to firware and protocol engine info. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25drivers/net/cxgb3: comment out dead codeHannes Eder1-0/+2
The function 'vsc8211_set_speed_duplex' is not used, so comment it out. For 'vsc8211_set_automdi' the function 'vsc8211_set_speed_duplex' is the only caller, so comment it out as well. Fix this (sparse) warning: drivers/net/cxgb3/vsc8211.c:269: warning: 'vsc8211_set_automdi' defined but not used drivers/net/cxgb3/vsc8211.c:295:5: warning: symbol 'vsc8211_set_speed_duplex' was not declared. Should it be static? Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-18cxgb3: manage private iSCSI IP addressKaren Xie4-21/+121
The accelerated iSCSI traffic could use a private IP address unknown to the OS: - The IP address is required in both drivers to manage ARP requests and connection set up. - Added an control call to retrieve the ip address. - Reply to ARP requests dedicated to the private IP address. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Karen Xie <kxie@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-16cxgb3: untie strict FW matchingDivy Le Ray3-30/+15
The NIC driver can work with mutliple versions of the FW. Let the driver load when the embedded FW does not match, and the FW update mechanism failed. The iWARP module will make its own loading decision. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-16cxgb3: Add multiple Tx queue support.Divy Le Ray4-16/+31
Implement NIC Tx multiqueue. Bump up driver version. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-28cxgb3: Fix sparse warning and micro-optimize is_pure_response()Roland Dreier1-1/+1
The function is_pure_response() does "ntohl(var) & const" and then essentially just tests whether the result is 0 or not; this can be done more efficiently by computing "var & htonl(const)" instead and doing the byte swap at compile time instead of run time. This change slightly shrinks the compiled code; eg on x86-64 we save a couple of bswapl instructions: add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-8 (-8) function old new delta t3_sge_intr_msix_napi 544 536 -8 and this also has the pleasant side effect of fixing a sparse warning: drivers/net/cxgb3/sge.c:2313:15: warning: restricted degrades to integer Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-26cxgb3: Update FW loading path.Divy Le Ray1-2/+2
Update FW loading path to accomodate in-kernel images location Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-26cxgb3: avoid potential memory leak.Divy Le Ray1-3/+2
Add consistency in alloc_ring() parameter checking to avoid potential memory leaks. alloc_ring() callers are correct fo far. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-26cxgb3: set hard_xmit in the netdev_opsDivy Le Ray1-0/+1
Fix t3_eth_xmit() missing into the netdev_ops structure. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20netdev: add more functions to netdevice opsStephen Hemminger1-1/+0
This patch moves neigh_setup and hard_start_xmit into the network device ops structure. For bisection, fix all the previously converted drivers as well. Bonding driver took the biggest hit on this. Added a prefetch of the hard_start_xmit in the fast path to try and reduce any impact this would have. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19cxgb3: convert to net_device_opsStephen Hemminger1-13/+16
Convert this driver to network device ops. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-18Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6David S. Miller2-2/+10
Conflicts: drivers/isdn/i4l/isdn_net.c fs/cifs/connect.c
2008-11-11RDMA/cxgb3: deadlock in iw_cxgb3 can cause hang when configuring interface.Steve Wise1-0/+2
When the iw_cxgb3 module's cxgb3_client "add" func gets called by the cxgb3 module, the iwarp driver ends up calling the ethtool ops get_drvinfo function in cxgb3 to get the fw version and other info. Currently the iwarp driver grabs the rtnl lock around this down call to serialize. As of 2.6.27 or so, things changed such that the rtnl lock is held around the call to the netdev driver open function. Also the cxgb3_client "add" function doesn't get called if the device is down. So, if you load cxgb3, then load iw_cxgb3, then ifconfig up the device, the iw_cxgb3 add func gets called with the rtnl_lock held. If you load cxgb3, ifconfig up the device, then load iw_cxgb3, the add func gets called without the rtnl_lock held. The former causes the deadlock, the latter does not. In addition, there are iw_cxgb3 sysfs handlers that also can call down into cxgb3 to gather the fw and hw versions. These can be called concurrently on different processors and at any time. Thus we need to push this serialization down in the cxgb3 driver get_drvinfo func. The fix is to remove rtnl lock usage, and use a per-device lock in cxgb3. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-11cxgb3 - Limit multiqueue setting to msi-xDivy Le Ray1-1/+1
Allow multiqueue setting in MSI-X mode only Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-11cxgb3 - eeprom read fixesDivy Le Ray1-1/+7
Protect against invalid phy entries in the eeprom. Extend eeprom access timeout. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-03drivers/net: Kill now superfluous ->last_rx stores.David S. Miller1-1/+0
The generic packet receive code takes care of setting netdev->last_rx when necessary, for the sake of the bonding ARP monitor. Drivers need not do it any more. Some cases had to be skipped over because the drivers were making use of the ->last_rx value themselves. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-31cxgb3 - enable lro control through ethtoolDivy Le Ray1-12/+57
Implement ethtool's get_flags and set_flags methods. It enables ethtool to control the LRO settings. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-22cxgb3: Fix kernel crash caused by uninitialized l2t_entry.arpqRoland Dreier1-0/+1
Commit 147e70e6 ("cxgb3: Use SKB list interfaces instead of home-grown implementation.") causes a crash in t3_l2t_send_slow() when an iWARP connection request is received. This is because the new l2t_entry.arpq skb queue is never initialized, and therefore trying to add an skb to it causes a NULL dereference. With the old code there was no need to initialize the queues because the l2t_entry structures were zeroed, and the code used NULL to mean empty. Fix this by adding __skb_queue_head_init() when all the l2t_entry structures get allocated. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-13cxgb3: extend copyrights to 2008Divy Le Ray20-20/+20
Update copyright banner to 2008. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-13cxgb3: update driver versionDivy Le Ray1-1/+1
Add a field to the driver versioning info. Update version to 1.1.0. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08cxgb3: Add 1G fiber supportDivy Le Ray3-12/+208
Add support for 1G optical Vitesse PHY. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08cxgb3: Support for Aeluros 2005 PHYDivy Le Ray4-19/+1040
Add support for SR PHY. Auto-detect phy module type, and report type changes. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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