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path: root/drivers/infiniband/ulp/srp/ib_srp.c
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Diffstat (limited to 'drivers/infiniband/ulp/srp/ib_srp.c')
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c131
1 files changed, 81 insertions, 50 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index bdb6f8517401..f2d2c7e2c76b 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -272,7 +272,8 @@ static void srp_path_rec_completion(int status,
target->status = status;
if (status)
- printk(KERN_ERR PFX "Got failed path rec status %d\n", status);
+ shost_printk(KERN_ERR, target->scsi_host,
+ PFX "Got failed path rec status %d\n", status);
else
target->path = *pathrec;
complete(&target->done);
@@ -303,7 +304,8 @@ static int srp_lookup_path(struct srp_target_port *target)
wait_for_completion(&target->done);
if (target->status < 0)
- printk(KERN_WARNING PFX "Path record query failed\n");
+ shost_printk(KERN_WARNING, target->scsi_host,
+ PFX "Path record query failed\n");
return target->status;
}
@@ -379,9 +381,10 @@ static int srp_send_req(struct srp_target_port *target)
* the second 8 bytes to the local node GUID.
*/
if (srp_target_is_topspin(target)) {
- printk(KERN_DEBUG PFX "Topspin/Cisco initiator port ID workaround "
- "activated for target GUID %016llx\n",
- (unsigned long long) be64_to_cpu(target->ioc_guid));
+ shost_printk(KERN_DEBUG, target->scsi_host,
+ PFX "Topspin/Cisco initiator port ID workaround "
+ "activated for target GUID %016llx\n",
+ (unsigned long long) be64_to_cpu(target->ioc_guid));
memset(req->priv.initiator_port_id, 0, 8);
memcpy(req->priv.initiator_port_id + 8,
&target->srp_host->dev->dev->node_guid, 8);
@@ -400,7 +403,8 @@ static void srp_disconnect_target(struct srp_target_port *target)
init_completion(&target->done);
if (ib_send_cm_dreq(target->cm_id, NULL, 0)) {
- printk(KERN_DEBUG PFX "Sending CM DREQ failed\n");
+ shost_printk(KERN_DEBUG, target->scsi_host,
+ PFX "Sending CM DREQ failed\n");
return;
}
wait_for_completion(&target->done);
@@ -568,7 +572,8 @@ static int srp_reconnect_target(struct srp_target_port *target)
return ret;
err:
- printk(KERN_ERR PFX "reconnect failed (%d), removing target port.\n", ret);
+ shost_printk(KERN_ERR, target->scsi_host,
+ PFX "reconnect failed (%d), removing target port.\n", ret);
/*
* We couldn't reconnect, so kill our target port off.
@@ -683,8 +688,9 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
if (scmnd->sc_data_direction != DMA_FROM_DEVICE &&
scmnd->sc_data_direction != DMA_TO_DEVICE) {
- printk(KERN_WARNING PFX "Unhandled data direction %d\n",
- scmnd->sc_data_direction);
+ shost_printk(KERN_WARNING, target->scsi_host,
+ PFX "Unhandled data direction %d\n",
+ scmnd->sc_data_direction);
return -EINVAL;
}
@@ -786,8 +792,9 @@ static void srp_process_rsp(struct srp_target_port *target, struct srp_rsp *rsp)
} else {
scmnd = req->scmnd;
if (!scmnd)
- printk(KERN_ERR "Null scmnd for RSP w/tag %016llx\n",
- (unsigned long long) rsp->tag);
+ shost_printk(KERN_ERR, target->scsi_host,
+ "Null scmnd for RSP w/tag %016llx\n",
+ (unsigned long long) rsp->tag);
scmnd->result = rsp->status;
if (rsp->flags & SRP_RSP_FLAG_SNSVALID) {
@@ -831,7 +838,8 @@ static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
if (0) {
int i;
- printk(KERN_ERR PFX "recv completion, opcode 0x%02x\n", opcode);
+ shost_printk(KERN_ERR, target->scsi_host,
+ PFX "recv completion, opcode 0x%02x\n", opcode);
for (i = 0; i < wc->byte_len; ++i) {
if (i % 8 == 0)
@@ -852,11 +860,13 @@ static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
case SRP_T_LOGOUT:
/* XXX Handle target logout */
- printk(KERN_WARNING PFX "Got target logout request\n");
+ shost_printk(KERN_WARNING, target->scsi_host,
+ PFX "Got target logout request\n");
break;
default:
- printk(KERN_WARNING PFX "Unhandled SRP opcode 0x%02x\n", opcode);
+ shost_printk(KERN_WARNING, target->scsi_host,
+ PFX "Unhandled SRP opcode 0x%02x\n", opcode);
break;
}
@@ -872,9 +882,10 @@ static void srp_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) {
- printk(KERN_ERR PFX "failed %s status %d\n",
- wc.wr_id & SRP_OP_RECV ? "receive" : "send",
- wc.status);
+ shost_printk(KERN_ERR, target->scsi_host,
+ PFX "failed %s status %d\n",
+ wc.wr_id & SRP_OP_RECV ? "receive" : "send",
+ wc.status);
target->qp_in_error = 1;
break;
}
@@ -930,13 +941,18 @@ static int srp_post_recv(struct srp_target_port *target)
* req_lim and tx_head. Lock cannot be dropped between call here and
* call to __srp_post_send().
*/
-static struct srp_iu *__srp_get_tx_iu(struct srp_target_port *target)
+static struct srp_iu *__srp_get_tx_iu(struct srp_target_port *target,
+ enum srp_request_type req_type)
{
+ s32 min = (req_type == SRP_REQ_TASK_MGMT) ? 1 : 2;
+
if (target->tx_head - target->tx_tail >= SRP_SQ_SIZE)
return NULL;
- if (unlikely(target->req_lim < 1))
+ if (target->req_lim < min) {
++target->zero_req_lim;
+ return NULL;
+ }
return target->tx_ring[target->tx_head & SRP_SQ_SIZE];
}
@@ -993,7 +1009,7 @@ static int srp_queuecommand(struct scsi_cmnd *scmnd,
return 0;
}
- iu = __srp_get_tx_iu(target);
+ iu = __srp_get_tx_iu(target, SRP_REQ_NORMAL);
if (!iu)
goto err;
@@ -1022,12 +1038,13 @@ static int srp_queuecommand(struct scsi_cmnd *scmnd,
len = srp_map_data(scmnd, target, req);
if (len < 0) {
- printk(KERN_ERR PFX "Failed to map data\n");
+ shost_printk(KERN_ERR, target->scsi_host,
+ PFX "Failed to map data\n");
goto err;
}
if (__srp_post_recv(target)) {
- printk(KERN_ERR PFX "Recv failed\n");
+ shost_printk(KERN_ERR, target->scsi_host, PFX "Recv failed\n");
goto err_unmap;
}
@@ -1035,7 +1052,7 @@ static int srp_queuecommand(struct scsi_cmnd *scmnd,
DMA_TO_DEVICE);
if (__srp_post_send(target, iu, len)) {
- printk(KERN_ERR PFX "Send failed\n");
+ shost_printk(KERN_ERR, target->scsi_host, PFX "Send failed\n");
goto err_unmap;
}
@@ -1090,6 +1107,7 @@ static void srp_cm_rej_handler(struct ib_cm_id *cm_id,
struct ib_cm_event *event,
struct srp_target_port *target)
{
+ struct Scsi_Host *shost = target->scsi_host;
struct ib_class_port_info *cpi;
int opcode;
@@ -1115,19 +1133,22 @@ static void srp_cm_rej_handler(struct ib_cm_id *cm_id,
memcpy(target->path.dgid.raw,
event->param.rej_rcvd.ari, 16);
- printk(KERN_DEBUG PFX "Topspin/Cisco redirect to target port GID %016llx%016llx\n",
- (unsigned long long) be64_to_cpu(target->path.dgid.global.subnet_prefix),
- (unsigned long long) be64_to_cpu(target->path.dgid.global.interface_id));
+ shost_printk(KERN_DEBUG, shost,
+ PFX "Topspin/Cisco redirect to target port GID %016llx%016llx\n",
+ (unsigned long long) be64_to_cpu(target->path.dgid.global.subnet_prefix),
+ (unsigned long long) be64_to_cpu(target->path.dgid.global.interface_id));
target->status = SRP_PORT_REDIRECT;
} else {
- printk(KERN_WARNING " REJ reason: IB_CM_REJ_PORT_REDIRECT\n");
+ shost_printk(KERN_WARNING, shost,
+ " REJ reason: IB_CM_REJ_PORT_REDIRECT\n");
target->status = -ECONNRESET;
}
break;
case IB_CM_REJ_DUPLICATE_LOCAL_COMM_ID:
- printk(KERN_WARNING " REJ reason: IB_CM_REJ_DUPLICATE_LOCAL_COMM_ID\n");
+ shost_printk(KERN_WARNING, shost,
+ " REJ reason: IB_CM_REJ_DUPLICATE_LOCAL_COMM_ID\n");
target->status = -ECONNRESET;
break;
@@ -1138,20 +1159,21 @@ static void srp_cm_rej_handler(struct ib_cm_id *cm_id,
u32 reason = be32_to_cpu(rej->reason);
if (reason == SRP_LOGIN_REJ_REQ_IT_IU_LENGTH_TOO_LARGE)
- printk(KERN_WARNING PFX
- "SRP_LOGIN_REJ: requested max_it_iu_len too large\n");
+ shost_printk(KERN_WARNING, shost,
+ PFX "SRP_LOGIN_REJ: requested max_it_iu_len too large\n");
else
- printk(KERN_WARNING PFX
- "SRP LOGIN REJECTED, reason 0x%08x\n", reason);
+ shost_printk(KERN_WARNING, shost,
+ PFX "SRP LOGIN REJECTED, reason 0x%08x\n", reason);
} else
- printk(KERN_WARNING " REJ reason: IB_CM_REJ_CONSUMER_DEFINED,"
- " opcode 0x%02x\n", opcode);
+ shost_printk(KERN_WARNING, shost,
+ " REJ reason: IB_CM_REJ_CONSUMER_DEFINED,"
+ " opcode 0x%02x\n", opcode);
target->status = -ECONNRESET;
break;
default:
- printk(KERN_WARNING " REJ reason 0x%x\n",
- event->param.rej_rcvd.reason);
+ shost_printk(KERN_WARNING, shost, " REJ reason 0x%x\n",
+ event->param.rej_rcvd.reason);
target->status = -ECONNRESET;
}
}
@@ -1166,7 +1188,8 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
switch (event->event) {
case IB_CM_REQ_ERROR:
- printk(KERN_DEBUG PFX "Sending CM REQ failed\n");
+ shost_printk(KERN_DEBUG, target->scsi_host,
+ PFX "Sending CM REQ failed\n");
comp = 1;
target->status = -ECONNRESET;
break;
@@ -1184,7 +1207,8 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
target->scsi_host->can_queue = min(target->req_lim,
target->scsi_host->can_queue);
} else {
- printk(KERN_WARNING PFX "Unhandled RSP opcode %#x\n", opcode);
+ shost_printk(KERN_WARNING, target->scsi_host,
+ PFX "Unhandled RSP opcode %#x\n", opcode);
target->status = -ECONNRESET;
break;
}
@@ -1230,20 +1254,23 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
break;
case IB_CM_REJ_RECEIVED:
- printk(KERN_DEBUG PFX "REJ received\n");
+ shost_printk(KERN_DEBUG, target->scsi_host, PFX "REJ received\n");
comp = 1;
srp_cm_rej_handler(cm_id, event, target);
break;
case IB_CM_DREQ_RECEIVED:
- printk(KERN_WARNING PFX "DREQ received - connection closed\n");
+ shost_printk(KERN_WARNING, target->scsi_host,
+ PFX "DREQ received - connection closed\n");
if (ib_send_cm_drep(cm_id, NULL, 0))
- printk(KERN_ERR PFX "Sending CM DREP failed\n");
+ shost_printk(KERN_ERR, target->scsi_host,
+ PFX "Sending CM DREP failed\n");
break;
case IB_CM_TIMEWAIT_EXIT:
- printk(KERN_ERR PFX "connection closed\n");
+ shost_printk(KERN_ERR, target->scsi_host,
+ PFX "connection closed\n");
comp = 1;
target->status = 0;
@@ -1255,7 +1282,8 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
break;
default:
- printk(KERN_WARNING PFX "Unhandled CM event %d\n", event->event);
+ shost_printk(KERN_WARNING, target->scsi_host,
+ PFX "Unhandled CM event %d\n", event->event);
break;
}
@@ -1283,7 +1311,7 @@ static int srp_send_tsk_mgmt(struct srp_target_port *target,
init_completion(&req->done);
- iu = __srp_get_tx_iu(target);
+ iu = __srp_get_tx_iu(target, SRP_REQ_TASK_MGMT);
if (!iu)
goto out;
@@ -1332,7 +1360,7 @@ static int srp_abort(struct scsi_cmnd *scmnd)
struct srp_request *req;
int ret = SUCCESS;
- printk(KERN_ERR "SRP abort called\n");
+ shost_printk(KERN_ERR, target->scsi_host, "SRP abort called\n");
if (target->qp_in_error)
return FAILED;
@@ -1362,7 +1390,7 @@ static int srp_reset_device(struct scsi_cmnd *scmnd)
struct srp_target_port *target = host_to_target(scmnd->device->host);
struct srp_request *req, *tmp;
- printk(KERN_ERR "SRP reset_device called\n");
+ shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n");
if (target->qp_in_error)
return FAILED;
@@ -1389,7 +1417,7 @@ static int srp_reset_host(struct scsi_cmnd *scmnd)
struct srp_target_port *target = host_to_target(scmnd->device->host);
int ret = FAILED;
- printk(KERN_ERR PFX "SRP reset_host called\n");
+ shost_printk(KERN_ERR, target->scsi_host, PFX "SRP reset_host called\n");
if (!srp_reconnect_target(target))
ret = SUCCESS;
@@ -1543,6 +1571,7 @@ static struct scsi_host_template srp_template = {
.this_id = -1,
.cmd_per_lun = SRP_SQ_SIZE,
.use_clustering = ENABLE_CLUSTERING,
+ .use_sg_chaining = ENABLE_SG_CHAINING,
.shost_attrs = srp_host_attrs
};
@@ -1814,8 +1843,9 @@ static ssize_t srp_create_target(struct class_device *class_dev,
ib_get_cached_gid(host->dev->dev, host->port, 0, &target->path.sgid);
- printk(KERN_DEBUG PFX "new target: id_ext %016llx ioc_guid %016llx pkey %04x "
- "service_id %016llx dgid %04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
+ shost_printk(KERN_DEBUG, target->scsi_host, PFX
+ "new target: id_ext %016llx ioc_guid %016llx pkey %04x "
+ "service_id %016llx dgid %04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
(unsigned long long) be64_to_cpu(target->id_ext),
(unsigned long long) be64_to_cpu(target->ioc_guid),
be16_to_cpu(target->path.pkey),
@@ -1842,7 +1872,8 @@ static ssize_t srp_create_target(struct class_device *class_dev,
target->qp_in_error = 0;
ret = srp_connect_target(target);
if (ret) {
- printk(KERN_ERR PFX "Connection failed\n");
+ shost_printk(KERN_ERR, target->scsi_host,
+ PFX "Connection failed\n");
goto err_cm_id;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.