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path: root/drivers/infiniband/hw/cxgb4/ev.c
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2017-12-29iw_cxgb4: Change error/warn prints to pr_debugBharat Potnuri1-1/+1
These prints not neccesarily mean error/warning, so changing them to debug. Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-11-14iw_cxgb4: only call the cq comp_handler when the cq is armedSteve Wise1-3/+5
The ULPs completion handler should only be called if the CQ is armed for notification. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-09-27iw_cxgb4: change pr_debug to appropriate log levelBharat Potnuri1-1/+1
Error logs of iw_cxgb4 needs to be printed by default. This patch changes the necessary pr_debug() to appropriate pr_<log level>. Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20cxgb4: Convert PDBG to pr_debugJoe Perches1-15/+14
Use a more typical logging style. Miscellanea: o Obsolete the c4iw_debug module parameter o Coalesce formats o Realign arguments Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20cxgb4: Use more common logging styleJoe Perches1-6/+4
Convert printks to pr_<level> Miscellanea: o Coalesce formats o Realign arguments Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-02-21Merge tag 'rdma-for-linus' of ↵Linus Torvalds1-1/+8
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull InfiniBand/RDMA updates from Roland Dreier: - Re-enable on-demand paging changes with stable ABI - Fairly large set of ocrdma HW driver fixes - Some qib HW driver fixes - Other miscellaneous changes * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (43 commits) IB/qib: Add blank line after declaration IB/qib: Fix checkpatch warnings IB/mlx5: Enable the ODP capability query verb IB/core: Add on demand paging caps to ib_uverbs_ex_query_device IB/core: Add support for extended query device caps RDMA/cxgb4: Don't hang threads forever waiting on WR replies RDMA/ocrdma: Fix off by one in ocrdma_query_gid() RDMA/ocrdma: Use unsigned for bit index RDMA/ocrdma: Help gcc generate better code for ocrdma_srq_toggle_bit RDMA/ocrdma: Update the ocrdma module version string RDMA/ocrdma: set vlan present bit for user AH RDMA/ocrdma: remove reference of ocrdma_dev out of ocrdma_qp structure RDMA/ocrdma: Add support for interrupt moderation RDMA/ocrdma: Honor return value of ocrdma_resolve_dmac RDMA/ocrdma: Allow expansion of the SQ CQEs via buddy CQ expansion of the QP RDMA/ocrdma: Discontinue support of RDMA-READ-WITH-INVALIDATE RDMA/ocrdma: Host crash on destroying device resources RDMA/ocrdma: Report correct state in ibv_query_qp RDMA/ocrdma: Debugfs enhancments for ocrdma driver RDMA/ocrdma: Report correct count of interrupt vectors while registering ocrdma device ...
2015-02-13RDMA/cxgb4: Serialize CQ event upcalls with CQ destructionHariprasad S1-1/+8
A race exists where the application can be destroying the CQ concurrently with a HW interrupt indicating a completion has been inserted into the CQ. This can cause an event notification upcall to the application after the CQ has been destroyed. The solution is to serialize looking up the CQ in the IDR table and referencing the CQ in c4iw_ev_handler() with removing the CQID from the IDR table and blocking until the refcnt reaches 0 in c4iw_destroy_cq(). Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2015-01-16iw_cxgb4: Cleanup register defines/MACROS defined in t4fw_ri_api.hHariprasad Shenai1-6/+6
Cleanup all the MACROS that are defined in t4fw_ri_api.h and affected files Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14Merge tag 'rdma-for-linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull infiniband/rdma updates from Roland Dreier: "Main set of InfiniBand/RDMA updates for 3.17 merge window: - MR reregistration support - MAD support for RMPP in userspace - iSER and SRP initiator updates - ocrdma hardware driver updates - other fixes..." * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (52 commits) IB/srp: Fix return value check in srp_init_module() RDMA/ocrdma: report asic-id in query device RDMA/ocrdma: Update sli data structure for endianness RDMA/ocrdma: Obtain SL from device structure RDMA/uapi: Include socket.h in rdma_user_cm.h IB/srpt: Handle GID change events IB/mlx5: Use ARRAY_SIZE instead of sizeof/sizeof[0] IB/mlx4: Use ARRAY_SIZE instead of sizeof/sizeof[0] RDMA/amso1100: Check for integer overflow in c2_alloc_cq_buf() IPoIB: Remove unnecessary test for NULL before debugfs_remove() IB/mad: Add user space RMPP support IB/mad: add new ioctl to ABI to support new registration options IB/mad: Add dev_notice messages for various umad/mad registration failures IB/mad: Update module to [pr|dev]_* style print messages IB/ipoib: Avoid multicast join attempts with invalid P_key IB/umad: Update module to [pr|dev]_* style print messages IB/ipoib: Avoid flushing the workqueue from worker context IB/ipoib: Use P_Key change event instead of P_Key polling mechanism IB/ipath: Add P_Key change event support mlx4_core: Add support for secure-host and SMP firewall ...
2014-08-02RDMA/cxgb4: Only call CQ completion handler if it is armedSteve Wise1-0/+1
The function __flush_qp() always calls the ULP's CQ completion handler functions even if the CQ was not armed. This can crash the system if the function pointer is NULL. The iSER ULP behaves this way: no completion handler and never arm the CQ for notification. So now we track whether the CQ is armed at flush time and only call the completion handlers if their CQs were armed. Also, if the RCQ and SCQ are the same CQ, the completion handler is getting called twice. It should only be called once after all SQ and RQ WRs are flushed from the QP. So rearrange the logic to fix this. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-07-16cxgb4/iw_cxgb4: display TPTE on errorsHariprasad Shenai1-5/+50
With ingress WRITE or READ RESPONSE errors, HW provides the offending stag from the packet. This patch adds logic to log the parsed TPTE in this case. cxgb4 now exports a function to read a TPTE entry from adapter memory. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-13RDMA/cxgb4: Handle newer firmware changesSteve Wise1-10/+0
Move QP to TERMINATE instead to allow the peer to get the TERM message. This bug wasn't detectable until newer FW that moves connections out of RDMA mode as soon as an error is detected. QP can exit RTS before the last AE arrives. This was introduced by changes in the FW to kick connections out of RDMA mode as soon as an error is detected. A side effect of this is that the driver can move the QP out of RTS before the AE causing the connection to get kicked out of RDMA mode is processed. Fix for this is to always post async errors even if the QP is out of RTS. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Vipul Pandya <vipul@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-02-15RDMA/cxgb4: Always log async errorsVipul Pandya1-3/+5
Log AEs even if the QP isn't in RTS. It is useful information. Signed-off-by: Vipul Pandya <vipul@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-05-19RDMA/cxgb4: Disable interrupts in c4iw_ev_dispatch()Vipul Pandya1-4/+4
Use GFP_ATOMIC in _insert_handle() if ints are disabled. Don't panic if we get an abort with no endpoint found. Just log a warning. Signed-off-by: Vipul Pandya <vipul@chelsio.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-10-31RDMA/cxgb4: Serialize calls to CQ's comp_handlerKumar Sanghvi1-2/+8
Commit 01e7da6ba53c ("RDMA/cxgb4: Make sure flush CQ entries are collected on connection close") introduced a potential problem where a CQ's comp_handler can get called simultaneously from different places in the iw_cxgb4 driver. This does not comply with Documentation/infiniband/core_locking.txt, which states that at a given point of time, there should be only one callback per CQ should be active. This problem was reported by Parav Pandit <Parav.Pandit@Emulex.Com>. Based on discussion between Parav Pandit and Steve Wise, this patch fixes the above problem by serializing the calls to a CQ's comp_handler using a spin_lock. Reported-by: Parav Pandit <Parav.Pandit@Emulex.Com> Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2010-09-28RDMA/cxgb4: Handle CPL_RDMA_TERMINATE messagesSteve Wise1-1/+1
T4 FW sends up CPL_RDMA_TERMINATE to indicate a peer TERM. This triggers the QP moving to TERMINATE state. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-06MAINTAINERS: Add cxgb4 and iw_cxgb4 entriesRoland Dreier1-3/+3
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-04-22RDMA/cxgb4: Add driver for Chelsio T4 RNICSteve Wise1-0/+193
Add an RDMA/iWARP driver for Chelsio T4 Ethernet adapters. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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