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qlge: Fix firmware mailbox command timeout. 

The mailbox command process would only process a maximum of 5 unrelated
firmware events while waiting for it's command completion status.
It should process an unlimited number of events while waiting for a maximum of 5 seconds.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ron Mercer 2009-10-28 08:39:21 +00:00 committed by David S. Miller
parent 6d190c6edf
commit da03945140
2 changed files with 13 additions and 11 deletions
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1
drivers/net/qlge/qlge.h
View File

@ -95,6 +95,7 @@ enum {
/* Misc. stuff */
MAILBOX_COUNT = 16,
MAILBOX_TIMEOUT = 5,
PROC_ADDR_RDY = (1 << 31),
PROC_ADDR_R = (1 << 30),

23
drivers/net/qlge/qlge_mpi.c
View File

@ -470,7 +470,8 @@ static int ql_mpi_handler(struct ql_adapter *qdev, struct mbox_params *mbcp)
*/
static int ql_mailbox_command(struct ql_adapter *qdev, struct mbox_params *mbcp)
{
int status, count;
int status;
unsigned long count;
/* Begin polled mode for MPI */
@ -491,9 +492,9 @@ static int ql_mailbox_command(struct ql_adapter *qdev, struct mbox_params *mbcp)
/* Wait for the command to complete. We loop
* here because some AEN might arrive while
* we're waiting for the mailbox command to
* complete. If more than 5 arrive then we can
* complete. If more than 5 seconds expire we can
* assume something is wrong. */
count = 5;
count = jiffies + HZ * MAILBOX_TIMEOUT;
do {
/* Wait for the interrupt to come in. */
status = ql_wait_mbx_cmd_cmplt(qdev);
@ -517,15 +518,15 @@ static int ql_mailbox_command(struct ql_adapter *qdev, struct mbox_params *mbcp)
MB_CMD_STS_GOOD) ||
((mbcp->mbox_out[0] & 0x0000f000) ==
MB_CMD_STS_INTRMDT))
break;
} while (--count);
goto done;
} while (time_before(jiffies, count));
if (!count) {
QPRINTK(qdev, DRV, ERR,
"Timed out waiting for mailbox complete.\n");
status = -ETIMEDOUT;
goto end;
}
QPRINTK(qdev, DRV, ERR,
"Timed out waiting for mailbox complete.\n");
status = -ETIMEDOUT;
goto end;
done:
/* Now we can clear the interrupt condition
* and look at our status.