p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

xprtrdma: human-readable completion status 

Make it easier to grep the system log for specific error conditions.

The wc.opcode field is not included because opcode numbers are
sparse, and because wc.opcode is not necessarily valid when
completion reports an error.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2015-01-21 11:02:04 -05:00 committed by Anna Schumaker
parent ec6f34e5b5
commit 8502427ccd
1 changed files with 58 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

72
net/sunrpc/xprtrdma/verbs.c
View File

@ -173,18 +173,54 @@ rpcrdma_cq_async_error_upcall(struct ib_event *event, void *context)
}
}
static const char * const wc_status[] = {
"success",
"local length error",
"local QP operation error",
"local EE context operation error",
"local protection error",
"WR flushed",
"memory management operation error",
"bad response error",
"local access error",
"remote invalid request error",
"remote access error",
"remote operation error",
"transport retry counter exceeded",
"RNR retrycounter exceeded",
"local RDD violation error",
"remove invalid RD request",
"operation aborted",
"invalid EE context number",
"invalid EE context state",
"fatal error",
"response timeout error",
"general error",
};
#define COMPLETION_MSG(status) \
((status) < ARRAY_SIZE(wc_status) ? \
wc_status[(status)] : "unexpected completion error")
static void
rpcrdma_sendcq_process_wc(struct ib_wc *wc)
{
struct rpcrdma_mw *frmr = (struct rpcrdma_mw *)(unsigned long)wc->wr_id;
dprintk("RPC: %s: frmr %p status %X opcode %d\n",
__func__, frmr, wc->status, wc->opcode);
if (wc->wr_id == 0ULL)
if (likely(wc->status == IB_WC_SUCCESS))
return;
if (wc->status != IB_WC_SUCCESS)
frmr->r.frmr.fr_state = FRMR_IS_STALE;
/* WARNING: Only wr_id and status are reliable at this point */
if (wc->wr_id == 0ULL) {
if (wc->status != IB_WC_WR_FLUSH_ERR)
pr_err("RPC: %s: SEND: %s\n",
__func__, COMPLETION_MSG(wc->status));
} else {
struct rpcrdma_mw *r;
r = (struct rpcrdma_mw *)(unsigned long)wc->wr_id;
r->r.frmr.fr_state = FRMR_IS_STALE;
pr_err("RPC: %s: frmr %p (stale): %s\n",
__func__, r, COMPLETION_MSG(wc->status));
}
}
static int
@ -248,16 +284,17 @@ rpcrdma_recvcq_process_wc(struct ib_wc *wc, struct list_head *sched_list)
struct rpcrdma_rep *rep =
(struct rpcrdma_rep *)(unsigned long)wc->wr_id;
dprintk("RPC: %s: rep %p status %X opcode %X length %u\n",
__func__, rep, wc->status, wc->opcode, wc->byte_len);
/* WARNING: Only wr_id and status are reliable at this point */
if (wc->status != IB_WC_SUCCESS)
goto out_fail;
if (wc->status != IB_WC_SUCCESS) {
rep->rr_len = ~0U;
goto out_schedule;
}
/* status == SUCCESS means all fields in wc are trustworthy */
if (wc->opcode != IB_WC_RECV)
return;
dprintk("RPC: %s: rep %p opcode 'recv', length %u: success\n",
__func__, rep, wc->byte_len);
rep->rr_len = wc->byte_len;
ib_dma_sync_single_for_cpu(rdmab_to_ia(rep->rr_buffer)->ri_id->device,
rep->rr_iov.addr, rep->rr_len, DMA_FROM_DEVICE);
@ -275,6 +312,13 @@ rpcrdma_recvcq_process_wc(struct ib_wc *wc, struct list_head *sched_list)
out_schedule:
list_add_tail(&rep->rr_list, sched_list);
return;
out_fail:
if (wc->status != IB_WC_WR_FLUSH_ERR)
pr_err("RPC: %s: rep %p: %s\n",
__func__, rep, COMPLETION_MSG(wc->status));
rep->rr_len = ~0U;
goto out_schedule;
}
static int