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author | Roland Dreier <rolandd@cisco.com> | 2005-10-27 11:03:38 -0700 |
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committer | Roland Dreier <rolandd@cisco.com> | 2005-10-27 11:03:38 -0700 |
commit | 3d155f8cd0d077938d271225d26ee52f8eb26082 (patch) | |
tree | 28f65ed2dc5e9f12884daf2a97f50367f145d8a0 /drivers/infiniband/hw/mthca/mthca_cmd.c | |
parent | 7cc656efb560cda66b5ed48444cad7556ea4fe99 (diff) | |
download | linux-3d155f8cd0d077938d271225d26ee52f8eb26082.tar.gz linux-3d155f8cd0d077938d271225d26ee52f8eb26082.tar.bz2 linux-3d155f8cd0d077938d271225d26ee52f8eb26082.zip |
[IB] mthca: first pass at catastrophic error reporting
Add some initial support for detecting and reporting catastrophic
errors reported by Mellanox HCAs. We start a periodic timer which
polls the catastrophic error reporting buffer in device memory. If an
error is detected, we dump the contents of the buffer for port-mortem
debugging, and report a fatal asynchronous error to higher levels.
In the future we can try to recover from these errors by resetting the
device, but this will require some work in higher-level code as well.
Let's get this in now, so that we at least get catastrophic errors
reported in logs.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_cmd.c')
-rw-r--r-- | drivers/infiniband/hw/mthca/mthca_cmd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c index 1bd7dc8f778c..9220473dbfbd 100644 --- a/drivers/infiniband/hw/mthca/mthca_cmd.c +++ b/drivers/infiniband/hw/mthca/mthca_cmd.c @@ -1,6 +1,7 @@ /* * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005 Cisco Systems. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -706,9 +707,13 @@ int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status) MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET); dev->cmd.max_cmds = 1 << lg; + MTHCA_GET(dev->catas_err.addr, outbox, QUERY_FW_ERR_START_OFFSET); + MTHCA_GET(dev->catas_err.size, outbox, QUERY_FW_ERR_SIZE_OFFSET); mthca_dbg(dev, "FW version %012llx, max commands %d\n", (unsigned long long) dev->fw_ver, dev->cmd.max_cmds); + mthca_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x\n", + (unsigned long long) dev->catas_err.addr, dev->catas_err.size); if (mthca_is_memfree(dev)) { MTHCA_GET(dev->fw.arbel.fw_pages, outbox, QUERY_FW_SIZE_OFFSET); |