1 files changed, 69 insertions, 73 deletions

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index a54eee9324b6..d4c08d648137 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -83,10 +83,6 @@ static void srp_remove_one(struct ib_device *device);
 static void srp_recv_completion(struct ib_cq *cq, void *target_ptr);
 static void srp_send_completion(struct ib_cq *cq, void *target_ptr);
 static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event);
-static struct srp_iu *__srp_get_tx_iu(struct srp_target_port *target,
-                                      enum srp_iu_type iu_type);
-static int __srp_post_send(struct srp_target_port *target,
-                           struct srp_iu *iu, int len);
 
 static struct scsi_transport_template *ib_srp_transport_template;
 
@@ -815,6 +811,75 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
         return len;
 }
 
+/*
+ * Must be called with target->scsi_host->host_lock held to protect
+ * req_lim and tx_head.  Lock cannot be dropped between call here and
+ * call to __srp_post_send().
+ *
+ * Note:
+ * An upper limit for the number of allocated information units for each
+ * request type is:
+ * - SRP_IU_CMD: SRP_CMD_SQ_SIZE, since the SCSI mid-layer never queues
+ *   more than Scsi_Host.can_queue requests.
+ * - SRP_IU_TSK_MGMT: SRP_TSK_MGMT_SQ_SIZE.
+ * - SRP_IU_RSP: 1, since a conforming SRP target never sends more than
+ *   one unanswered SRP request to an initiator.
+ */
+static struct srp_iu *__srp_get_tx_iu(struct srp_target_port *target,
+                                      enum srp_iu_type iu_type)
+{
+        s32 rsv = (iu_type == SRP_IU_TSK_MGMT) ? 0 : SRP_TSK_MGMT_SQ_SIZE;
+        struct srp_iu *iu;
+
+        srp_send_completion(target->send_cq, target);
+
+        if (target->tx_head - target->tx_tail >= SRP_SQ_SIZE)
+                return NULL;
+
+        /* Initiator responses to target requests do not consume credits */
+        if (target->req_lim <= rsv && iu_type != SRP_IU_RSP) {
+                ++target->zero_req_lim;
+                return NULL;
+        }
+
+        iu = target->tx_ring[target->tx_head & SRP_SQ_MASK];
+        iu->type = iu_type;
+        return iu;
+}
+
+/*
+ * Must be called with target->scsi_host->host_lock held to protect
+ * req_lim and tx_head.
+ */
+static int __srp_post_send(struct srp_target_port *target,
+                           struct srp_iu *iu, int len)
+{
+        struct ib_sge list;
+        struct ib_send_wr wr, *bad_wr;
+        int ret = 0;
+
+        list.addr   = iu->dma;
+        list.length = len;
+        list.lkey   = target->srp_host->srp_dev->mr->lkey;
+
+        wr.next       = NULL;
+        wr.wr_id      = target->tx_head & SRP_SQ_MASK;
+        wr.sg_list    = &list;
+        wr.num_sge    = 1;
+        wr.opcode     = IB_WR_SEND;
+        wr.send_flags = IB_SEND_SIGNALED;
+
+        ret = ib_post_send(target->qp, &wr, &bad_wr);
+
+        if (!ret) {
+                ++target->tx_head;
+                if (iu->type != SRP_IU_RSP)
+                        --target->req_lim;
+        }
+
+        return ret;
+}
+
 static int srp_post_recv(struct srp_target_port *target)
 {
         unsigned long flags;
@@ -1058,75 +1123,6 @@ static void srp_send_completion(struct ib_cq *cq, void *target_ptr)
         }
 }
 
-/*
- * Must be called with target->scsi_host->host_lock held to protect
- * req_lim and tx_head.  Lock cannot be dropped between call here and
- * call to __srp_post_send().
- *
- * Note:
- * An upper limit for the number of allocated information units for each
- * request type is:
- * - SRP_IU_CMD: SRP_CMD_SQ_SIZE, since the SCSI mid-layer never queues
- *   more than Scsi_Host.can_queue requests.
- * - SRP_IU_TSK_MGMT: SRP_TSK_MGMT_SQ_SIZE.
- * - SRP_IU_RSP: 1, since a conforming SRP target never sends more than
- *   one unanswered SRP request to an initiator.
- */
-static struct srp_iu *__srp_get_tx_iu(struct srp_target_port *target,
-                                      enum srp_iu_type iu_type)
-{
-        s32 rsv = (iu_type == SRP_IU_TSK_MGMT) ? 0 : SRP_TSK_MGMT_SQ_SIZE;
-        struct srp_iu *iu;
-
-        srp_send_completion(target->send_cq, target);
-
-        if (target->tx_head - target->tx_tail >= SRP_SQ_SIZE)
-                return NULL;
-
-        /* Initiator responses to target requests do not consume credits */
-        if (target->req_lim <= rsv && iu_type != SRP_IU_RSP) {
-                ++target->zero_req_lim;
-                return NULL;
-        }
-
-        iu = target->tx_ring[target->tx_head & SRP_SQ_MASK];
-        iu->type = iu_type;
-        return iu;
-}
-
-/*
- * Must be called with target->scsi_host->host_lock held to protect
- * req_lim and tx_head.
- */
-static int __srp_post_send(struct srp_target_port *target,
-                           struct srp_iu *iu, int len)
-{
-        struct ib_sge list;
-        struct ib_send_wr wr, *bad_wr;
-        int ret = 0;
-
-        list.addr   = iu->dma;
-        list.length = len;
-        list.lkey   = target->srp_host->srp_dev->mr->lkey;
-
-        wr.next       = NULL;
-        wr.wr_id      = target->tx_head & SRP_SQ_MASK;
-        wr.sg_list    = &list;
-        wr.num_sge    = 1;
-        wr.opcode     = IB_WR_SEND;
-        wr.send_flags = IB_SEND_SIGNALED;
-
-        ret = ib_post_send(target->qp, &wr, &bad_wr);
-
-        if (!ret) {
-                ++target->tx_head;
-                if (iu->type != SRP_IU_RSP)
-                        --target->req_lim;
-        }
-
-        return ret;
-}
-
 static int srp_queuecommand(struct scsi_cmnd *scmnd,
                             void (*done)(struct scsi_cmnd *))
 {