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IB/srp: Introduce srp_handle_qp_err()

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Introduce the function srp_handle_qp_err(), change the type of
qp_in_error from int into bool and move the initialization of that
variable from srp_reconnect_target() to srp_connect_target().

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Bart Van Assche 2011-09-03 09:25:42 +02:00 committed by Roland Dreier
parent 224db15743
commit 948d1e889e
2 changed files with 21 additions and 18 deletions
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37
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -515,6 +515,8 @@ static int srp_connect_target(struct srp_target_port *target)
int retries = 3;
int ret;
target->qp_in_error = false;
ret = srp_lookup_path(target);
if (ret)
return ret;
@ -689,7 +691,6 @@ static int srp_reconnect_target(struct srp_target_port *target)
for (i = 0; i < SRP_SQ_SIZE; ++i)
list_add(&target->tx_ring[i]->list, &target->free_tx);
target->qp_in_error = 0;
ret = srp_connect_target(target);
unblock:
@ -1269,6 +1270,15 @@ static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
PFX "Recv failed with error code %d\n", res);
}
static void srp_handle_qp_err(enum ib_wc_status wc_status,
enum ib_wc_opcode wc_opcode,
struct srp_target_port *target)
{
shost_printk(KERN_ERR, target->scsi_host, PFX "failed %s status %d\n",
wc_opcode & IB_WC_RECV ? "receive" : "send", wc_status);
target->qp_in_error = true;
}
static void srp_recv_completion(struct ib_cq *cq, void *target_ptr)
{
struct srp_target_port *target = target_ptr;
@ -1276,15 +1286,12 @@ static void srp_recv_completion(struct ib_cq *cq, void *target_ptr)
ib_req_notify_cq(cq, IB_CQ_NEXT_COMP);
while (ib_poll_cq(cq, 1, &wc) > 0) {
if (wc.status) {
shost_printk(KERN_ERR, target->scsi_host,
PFX "failed receive status %d\n",
wc.status);
target->qp_in_error = 1;
if (likely(wc.status == IB_WC_SUCCESS)) {
srp_handle_recv(target, &wc);
} else {
srp_handle_qp_err(wc.status, wc.opcode, target);
break;
}
srp_handle_recv(target, &wc);
}
}
@ -1295,16 +1302,13 @@ static void srp_send_completion(struct ib_cq *cq, void *target_ptr)
struct srp_iu *iu;
while (ib_poll_cq(cq, 1, &wc) > 0) {
if (wc.status) {
shost_printk(KERN_ERR, target->scsi_host,
PFX "failed send status %d\n",
wc.status);
target->qp_in_error = 1;
if (likely(wc.status == IB_WC_SUCCESS)) {
iu = (struct srp_iu *) (uintptr_t) wc.wr_id;
list_add(&iu->list, &target->free_tx);
} else {
srp_handle_qp_err(wc.status, wc.opcode, target);
break;
}
iu = (struct srp_iu *) (uintptr_t) wc.wr_id;
list_add(&iu->list, &target->free_tx);
}
}
@ -2269,7 +2273,6 @@ static ssize_t srp_create_target(struct device *dev,
if (ret)
goto err_free_ib;
target->qp_in_error = 0;
ret = srp_connect_target(target);
if (ret) {
shost_printk(KERN_ERR, target->scsi_host,

2
drivers/infiniband/ulp/srp/ib_srp.h
View File

@ -179,7 +179,7 @@ struct srp_target_port {
struct list_head list;
struct completion done;
int status;
int qp_in_error;
bool qp_in_error;
struct completion tsk_mgmt_done;
u8 tsk_mgmt_status;