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path: root/drivers/net/cxgb3/t3_hw.c
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2010-03-03Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (48 commits) IB/srp: Clean up error path in srp_create_target_ib() IB/srp: Split send and recieve CQs to reduce number of interrupts RDMA/nes: Add support for KR device id 0x0110 IB/uverbs: Use anon_inodes instead of private infinibandeventfs IB/core: Fix and clean up ib_ud_header_init() RDMA/cxgb3: Mark RDMA device with CXIO_ERROR_FATAL when removing RDMA/cxgb3: Don't allocate the SW queue for user mode CQs RDMA/cxgb3: Increase the max CQ depth RDMA/cxgb3: Doorbell overflow avoidance and recovery IB/core: Pack struct ib_device a little tighter IB/ucm: Clean whitespace errors IB/ucm: Increase maximum devices supported IB/ucm: Use stack variable 'base' in ib_ucm_add_one IB/ucm: Use stack variable 'devnum' in ib_ucm_add_one IB/umad: Clean whitespace IB/umad: Increase maximum devices supported IB/umad: Use stack variable 'base' in ib_umad_init_port IB/umad: Use stack variable 'devnum' in ib_umad_init_port IB/umad: Remove port_table[] IB/umad: Convert *cdev to cdev in struct ib_umad_port ...
2010-02-24RDMA/cxgb3: Doorbell overflow avoidance and recoverySteve Wise
T3 hardware doorbell FIFO overflows can cause application stalls due to lost doorbell ring events. This has been seen when running large NP IMB alltoall MPI jobs. The T3 hardware supports an xon/xoff-type flow control mechanism to help avoid overflowing the HW doorbell FIFO. This patch uses these interrupts to disable RDMA QP doorbell rings when we near an overflow condition, and then turn them back on (and ring all the active QP doorbells) when when the doorbell FIFO empties out. In addition if an doorbell ring is dropped by the hardware, the code will now recover. Design: cxgb3: - enable these DB interrupts - in the interrupt handler, schedule work tasks to call the ULPs event handlers with the new events. - ring all the qset txqs when an overflow is detected. iw_cxgb3: - disable db ringing on all active qps when we get the DB_FULL event - enable db ringing on all active qps and ring all active dbs when we get the DB_EMPTY event - On DB_DROP event: - disable db rings in the event handler - delay-schedule a work task which rings and enables the dbs on all active qps. - in post_send and post_recv logic, don't ring the db if it's disabled. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-02-15cxgb3: fix link flapDivy Le Ray
The driver is expected to report that the link is up when the phy Rx signal is established and the mac has not detected a link fault. The code is however broken, the driver does not check the link fault status when the phy link status changes. The link fault status being checked within a short period of time, it leads to link up/link down events. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05cxgb3: fix 2 ports 1G regressionDivy Le Ray
commit 88045b3cf0f8981129cb489c7b6bc36c21dd33a7 cxgb3: fix mac index mapping Override the mac index computation for the gen2 adapter, as each port is expected to use index 0. introduces a regression on 2 port 1G adapter as its xauicfg vpd value is null. Add a check on the device id. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-02cxgb3: fix Gen2 pci default settingsDivy Le Ray
Modify control register settings to accommodate the bridge's max read requset size. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-08cxgb3: fix mac index mappingDivy Le Ray
Override the mac index computation for the gen2 adapter, as each port is expected to use index 0. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-03Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/forcedeth.c
2009-05-29cxgb3: add support for the Aquantia 10G-BT phyDivy Le Ray
Add support for the Aquantia AQ1002 10G-BaseT phy. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29cxgb3: Add Aeluros 2020 phy supportDivy Le Ray
Add support for the AEL2020 phy. Add PCI IDs of the boards using this phy. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29cxgb3: link fault fixesDivy Le Ray
Do not call t3_link_fault() under spinlock, as it calls msleep(). Besides, only the access to pi->link_fault needs to be serialized. Also initialize local variables before checking the link status, link state fields might otherwise end up containing garbage. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-20cxgb3: set phy's mdio dev before the phy init sequenceDivy Le Ray
mdio's dev field needs to be set before mdio ops occur. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-20cxgb3: Use generic XENPAK LASI register definitionsBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-03Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2009-05-01cxgb3: fixing gcc 4.4 compiler warning: suggest parentheses around operand ↵Sergey Senozhatsky
of ‘!’ Trivial: fixing gcc 4.4 compiler warning: drivers/net/cxgb3/t3_hw.c: In function ‘t3_prep_adapter’: drivers/net/cxgb3/t3_hw.c:3782: warning: suggest parentheses around operand of ‘!’ or change ‘|’ to ‘||’ or ‘!’ to ‘~’ Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@mail.by> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-29cxgb3: Use generic MDIO definitions and mdio_mii_ioctl()Ben Hutchings
Compile-tested only. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-20cxgb3: fix link fault handlingDivy Le Ray
Use the existing periodic task to handle link faults. The link fault interrupt handler is also called in work queue context, which is wrong and might cause potential deadlocks. 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 Ray
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: sge setup fixesDivy Le Ray
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>
2009-03-13cxgb3: detect mac link faults.Divy Le Ray
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: disable high freq non-data interruptsDivy Le Ray
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>
2009-02-18cxgb3: Add support for PCI ID 0x35.Divy Le Ray
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>
2008-12-16cxgb3: untie strict FW matchingDivy Le Ray
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>
2008-11-11cxgb3 - eeprom read fixesDivy Le Ray
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>
2008-10-13cxgb3: extend copyrights to 2008Divy Le Ray
Update copyright banner to 2008. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08cxgb3: Add 1G fiber supportDivy Le Ray
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 Ray
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>
2008-10-08cxgb3: commnonize LASI phy codeDivy Le Ray
Add generic code to manage interrupt driven PHYs. Do not reset the phy after link parameters update, the new values might get lost. Return early from link change notification when the link parameters remain unchanged. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08cxgb3: More flexible support for PHY interrupts.Divy Le Ray
Do not require PHY interrupts to be connected to GPIs in ascending order. Base interrupt availability both on PHYs supporting them and on GPIs being hooked up. Allows boards to specify interrupt GPIs though the PHYs don't use them. Remove spurious PHY interrupts due to clearing T3DBG interrupts before setting their polarity. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08cxgb3: simplify port type struct and usageDivy Le Ray
Second step in overall phy layer reorganization. Clean up the port_type_info structure. Support coextistence of clause 22 and clause 45 MDIO devices. Select the type of MDIO transaction on a per transaction basis. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08cxgb3: allow for PHY reset statusDivy Le Ray
First step towards overall PHY layering re-organization. Allow a status return when a PHY is reset. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08cxgb3: reset the adapter on fatal errorDivy Le Ray
when a fatal error occurs, bring ports down, reset the chip, and bring ports back up. Factorize code used for both EEH and fatal error recovery. Fix timer usage when bringing up/resetting sge queue sets. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-29cxgb3: Allow 64KB firmware images.Steve Wise
Starting with FW version 7.0, the driver needs to allow larger images. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-10cxgb3: treat firmware data as constDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-05-13cxgb3 - fix EEHDivy Le Ray
Reset the chip when the PCI link goes down. Preserve the napi structure when a sge qset's resources are freed. Replay only HW initialization when the chip comes out of reset. Signed-off-by: Divy Le ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-02-03cxgb3: Remove incorrect __devinit annotationsRoland Dreier
When PCI error recovery was added to cxgb3, a function t3_io_slot_reset() was added. This function can call back into t3_prep_adapter() at any time, so t3_prep_adapter() can no longer be marked __devinit. This patch removes the __devinit annotation from t3_prep_adapter() and all the functions that it calls, which fixes WARNING: drivers/net/cxgb3/built-in.o(.text+0x2427): Section mismatch in reference from the function t3_io_slot_reset() to the function .devinit.text:t3_prep_adapter() Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28annotate cxgb3Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28cxgb3 - parity initialization for T3C adapters.Divy Le Ray
Add parity initialization for T3C adapters. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28drivers/net/cxgb3: trim trailing whitespaceJeff Garzik
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-01-28cxgb3 - HW set up updatesDivy Le Ray
Disable PEX errors. The HW generates false positives. Update RSS hash function to a symmetric algorithm. Update T3C HW support Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28cxgb3 - FW upgradeDivy Le Ray
Bump up FW version to 5.0. Do not downgrade FW within the same major version range. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-07cxgb3 - T3C support updateDivy Le Ray
Update GPIO mapping for T3C. Update xgmac for T3C support. Fix typo in mtu table. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10cxgb3 sparse warning fixesStephen Hemminger
Fix warnings from sparse related to shadowed variables and routines that should be declared static. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10cxgb3 - CQ context operations time out too soon.Divy Le Ray
Currently, the driver only tries up to 5 times (5us) to get the results of a CQ context operation. Testing has shown the chip can take as much as 50us to return the response on SG_CONTEXT_CMD operations. So we up the retry count to 100 to cover high loads. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10cxgb3 - Set the CQ_ERR bit in CQ contexts.Divy Le Ray
The cxgb3 driver is incorrectly configuring the HW CQ context for CQ's that use overflow-avoidance. Namely the RDMA control CQ. This results in a bad DMA from the device to bus address 0. The solution is to set the CQ_ERR bit in the context for these types of CQs. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10cxgb3 - log and clear PEX errorsDivy Le Ray
Clear pciE PEX errors late at module load time. Log details when PEX errors occur. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10cxgb3 - Firmware updateDivy Le Ray
Update firmware version. Allow the driver to be up and running with older FW image Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10cxgb3 - Update internal memory managementDivy Le Ray
Set PM1 internal memory to round robin mode It balances access to this internal memory for multiport adapters. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10cxgb3 - log adapter serial numberDivy Le Ray
Log HW serial number when cxgb3 module is loaded. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-31- cxgb3 engine microcode loadDivy Le Ray
Load the engine microcode when an interface is brought up, instead of of doing it when the module is loaded. Loosen up tight binding between the driver and the engine microcode version. There is no need for microcode update with T3A boards. Fix the file naming. Do a better job at logging the loading activity. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08cxgb3 - TP SRAM updateDivy Le Ray
The chip executes microcode present in internal RAM, whose content is loaded from EEPROM on power cycle. This patch allows an update of the microcode through PIO without forcing a power cycle. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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