forked from luck/tmp_suning_uos_patched
Merge branch 'srp' into for-next
This commit is contained in:
commit
f57721507f
@ -80,7 +80,8 @@ MODULE_PARM_DESC(mellanox_workarounds,
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static void srp_add_one(struct ib_device *device);
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static void srp_add_one(struct ib_device *device);
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static void srp_remove_one(struct ib_device *device);
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static void srp_remove_one(struct ib_device *device);
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static void srp_completion(struct ib_cq *cq, void *target_ptr);
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static void srp_recv_completion(struct ib_cq *cq, void *target_ptr);
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static void srp_send_completion(struct ib_cq *cq, void *target_ptr);
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static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event);
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static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event);
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static struct scsi_transport_template *ib_srp_transport_template;
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static struct scsi_transport_template *ib_srp_transport_template;
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@ -227,14 +228,21 @@ static int srp_create_target_ib(struct srp_target_port *target)
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if (!init_attr)
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if (!init_attr)
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return -ENOMEM;
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return -ENOMEM;
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target->cq = ib_create_cq(target->srp_host->srp_dev->dev,
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target->recv_cq = ib_create_cq(target->srp_host->srp_dev->dev,
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srp_completion, NULL, target, SRP_CQ_SIZE, 0);
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srp_recv_completion, NULL, target, SRP_RQ_SIZE, 0);
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if (IS_ERR(target->cq)) {
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if (IS_ERR(target->recv_cq)) {
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ret = PTR_ERR(target->cq);
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ret = PTR_ERR(target->recv_cq);
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goto out;
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goto err;
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}
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}
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ib_req_notify_cq(target->cq, IB_CQ_NEXT_COMP);
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target->send_cq = ib_create_cq(target->srp_host->srp_dev->dev,
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srp_send_completion, NULL, target, SRP_SQ_SIZE, 0);
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if (IS_ERR(target->send_cq)) {
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ret = PTR_ERR(target->send_cq);
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goto err_recv_cq;
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}
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ib_req_notify_cq(target->recv_cq, IB_CQ_NEXT_COMP);
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init_attr->event_handler = srp_qp_event;
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init_attr->event_handler = srp_qp_event;
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init_attr->cap.max_send_wr = SRP_SQ_SIZE;
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init_attr->cap.max_send_wr = SRP_SQ_SIZE;
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@ -243,24 +251,32 @@ static int srp_create_target_ib(struct srp_target_port *target)
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init_attr->cap.max_send_sge = 1;
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init_attr->cap.max_send_sge = 1;
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init_attr->sq_sig_type = IB_SIGNAL_ALL_WR;
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init_attr->sq_sig_type = IB_SIGNAL_ALL_WR;
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init_attr->qp_type = IB_QPT_RC;
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init_attr->qp_type = IB_QPT_RC;
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init_attr->send_cq = target->cq;
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init_attr->send_cq = target->send_cq;
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init_attr->recv_cq = target->cq;
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init_attr->recv_cq = target->recv_cq;
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target->qp = ib_create_qp(target->srp_host->srp_dev->pd, init_attr);
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target->qp = ib_create_qp(target->srp_host->srp_dev->pd, init_attr);
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if (IS_ERR(target->qp)) {
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if (IS_ERR(target->qp)) {
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ret = PTR_ERR(target->qp);
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ret = PTR_ERR(target->qp);
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ib_destroy_cq(target->cq);
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goto err_send_cq;
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goto out;
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}
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}
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ret = srp_init_qp(target, target->qp);
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ret = srp_init_qp(target, target->qp);
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if (ret) {
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if (ret)
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ib_destroy_qp(target->qp);
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goto err_qp;
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ib_destroy_cq(target->cq);
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goto out;
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}
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out:
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kfree(init_attr);
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return 0;
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err_qp:
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ib_destroy_qp(target->qp);
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err_send_cq:
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ib_destroy_cq(target->send_cq);
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err_recv_cq:
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ib_destroy_cq(target->recv_cq);
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err:
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kfree(init_attr);
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kfree(init_attr);
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return ret;
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return ret;
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}
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}
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@ -270,7 +286,8 @@ static void srp_free_target_ib(struct srp_target_port *target)
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int i;
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int i;
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ib_destroy_qp(target->qp);
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ib_destroy_qp(target->qp);
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ib_destroy_cq(target->cq);
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ib_destroy_cq(target->send_cq);
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ib_destroy_cq(target->recv_cq);
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for (i = 0; i < SRP_RQ_SIZE; ++i)
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for (i = 0; i < SRP_RQ_SIZE; ++i)
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srp_free_iu(target->srp_host, target->rx_ring[i]);
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srp_free_iu(target->srp_host, target->rx_ring[i]);
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@ -568,7 +585,9 @@ static int srp_reconnect_target(struct srp_target_port *target)
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if (ret)
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if (ret)
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goto err;
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goto err;
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while (ib_poll_cq(target->cq, 1, &wc) > 0)
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while (ib_poll_cq(target->recv_cq, 1, &wc) > 0)
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; /* nothing */
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while (ib_poll_cq(target->send_cq, 1, &wc) > 0)
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; /* nothing */
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; /* nothing */
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spin_lock_irq(target->scsi_host->host_lock);
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spin_lock_irq(target->scsi_host->host_lock);
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@ -851,7 +870,7 @@ static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
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struct srp_iu *iu;
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struct srp_iu *iu;
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u8 opcode;
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u8 opcode;
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iu = target->rx_ring[wc->wr_id & ~SRP_OP_RECV];
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iu = target->rx_ring[wc->wr_id];
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dev = target->srp_host->srp_dev->dev;
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dev = target->srp_host->srp_dev->dev;
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ib_dma_sync_single_for_cpu(dev, iu->dma, target->max_ti_iu_len,
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ib_dma_sync_single_for_cpu(dev, iu->dma, target->max_ti_iu_len,
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@ -898,7 +917,7 @@ static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
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DMA_FROM_DEVICE);
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DMA_FROM_DEVICE);
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}
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}
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static void srp_completion(struct ib_cq *cq, void *target_ptr)
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static void srp_recv_completion(struct ib_cq *cq, void *target_ptr)
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{
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{
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struct srp_target_port *target = target_ptr;
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struct srp_target_port *target = target_ptr;
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struct ib_wc wc;
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struct ib_wc wc;
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@ -907,17 +926,31 @@ static void srp_completion(struct ib_cq *cq, void *target_ptr)
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while (ib_poll_cq(cq, 1, &wc) > 0) {
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while (ib_poll_cq(cq, 1, &wc) > 0) {
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if (wc.status) {
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if (wc.status) {
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shost_printk(KERN_ERR, target->scsi_host,
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shost_printk(KERN_ERR, target->scsi_host,
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PFX "failed %s status %d\n",
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PFX "failed receive status %d\n",
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wc.wr_id & SRP_OP_RECV ? "receive" : "send",
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wc.status);
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wc.status);
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target->qp_in_error = 1;
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target->qp_in_error = 1;
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break;
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break;
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}
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}
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if (wc.wr_id & SRP_OP_RECV)
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srp_handle_recv(target, &wc);
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srp_handle_recv(target, &wc);
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}
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else
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}
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++target->tx_tail;
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static void srp_send_completion(struct ib_cq *cq, void *target_ptr)
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{
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struct srp_target_port *target = target_ptr;
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struct ib_wc wc;
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while (ib_poll_cq(cq, 1, &wc) > 0) {
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if (wc.status) {
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shost_printk(KERN_ERR, target->scsi_host,
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PFX "failed send status %d\n",
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wc.status);
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target->qp_in_error = 1;
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break;
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}
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++target->tx_tail;
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}
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}
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}
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}
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@ -930,7 +963,7 @@ static int __srp_post_recv(struct srp_target_port *target)
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int ret;
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int ret;
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next = target->rx_head & (SRP_RQ_SIZE - 1);
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next = target->rx_head & (SRP_RQ_SIZE - 1);
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wr.wr_id = next | SRP_OP_RECV;
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wr.wr_id = next;
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iu = target->rx_ring[next];
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iu = target->rx_ring[next];
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list.addr = iu->dma;
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list.addr = iu->dma;
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@ -970,6 +1003,8 @@ static struct srp_iu *__srp_get_tx_iu(struct srp_target_port *target,
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{
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{
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s32 min = (req_type == SRP_REQ_TASK_MGMT) ? 1 : 2;
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s32 min = (req_type == SRP_REQ_TASK_MGMT) ? 1 : 2;
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srp_send_completion(target->send_cq, target);
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if (target->tx_head - target->tx_tail >= SRP_SQ_SIZE)
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if (target->tx_head - target->tx_tail >= SRP_SQ_SIZE)
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return NULL;
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return NULL;
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@ -60,7 +60,6 @@ enum {
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SRP_RQ_SHIFT = 6,
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SRP_RQ_SHIFT = 6,
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SRP_RQ_SIZE = 1 << SRP_RQ_SHIFT,
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SRP_RQ_SIZE = 1 << SRP_RQ_SHIFT,
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SRP_SQ_SIZE = SRP_RQ_SIZE - 1,
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SRP_SQ_SIZE = SRP_RQ_SIZE - 1,
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SRP_CQ_SIZE = SRP_SQ_SIZE + SRP_RQ_SIZE,
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SRP_TAG_TSK_MGMT = 1 << (SRP_RQ_SHIFT + 1),
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SRP_TAG_TSK_MGMT = 1 << (SRP_RQ_SHIFT + 1),
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@ -69,8 +68,6 @@ enum {
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SRP_FMR_DIRTY_SIZE = SRP_FMR_POOL_SIZE / 4
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SRP_FMR_DIRTY_SIZE = SRP_FMR_POOL_SIZE / 4
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};
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};
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#define SRP_OP_RECV (1 << 31)
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enum srp_target_state {
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enum srp_target_state {
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SRP_TARGET_LIVE,
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SRP_TARGET_LIVE,
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SRP_TARGET_CONNECTING,
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SRP_TARGET_CONNECTING,
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@ -133,7 +130,8 @@ struct srp_target_port {
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int path_query_id;
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int path_query_id;
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struct ib_cm_id *cm_id;
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struct ib_cm_id *cm_id;
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struct ib_cq *cq;
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struct ib_cq *recv_cq;
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struct ib_cq *send_cq;
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struct ib_qp *qp;
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struct ib_qp *qp;
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int max_ti_iu_len;
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int max_ti_iu_len;
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