mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-02 10:23:55 +08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
"This series addresses a number of outstanding issues wrt to active I/O
shutdown using iser-target. This includes:
- Fix a long standing tpg_state bug where a tpg could be referenced
during explicit shutdown (v3.1+ stable)
- Use list_del_init for iscsi_cmd->i_conn_node so list_empty checks
work as expected (v3.10+ stable)
- Fix a isert_conn->state related hung task bug + ensure outstanding
I/O completes during session shutdown. (v3.10+ stable)
- Fix isert_conn->post_send_buf_count accounting for RDMA READ/WRITEs
(v3.10+ stable)
- Ignore FRWR completions during active I/O shutdown (v3.12+ stable)
- Fix command leakage for interrupt coalescing during active I/O
shutdown (v3.13+ stable)
Also included is another DIF emulation fix from Sagi specific to
v3.14-rc code"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
Target/sbc: Fix sbc_copy_prot for offset scatters
iser-target: Fix command leak for tx_desc->comp_llnode_batch
iser-target: Ignore completions for FRWRs in isert_cq_tx_work
iser-target: Fix post_send_buf_count for RDMA READ/WRITE
iscsi/iser-target: Fix isert_conn->state hung shutdown issues
iscsi/iser-target: Use list_del_init for ->i_conn_node
iscsi-target: Fix iscsit_get_tpg_from_np tpg_state bug
This commit is contained in:
Linus Torvalds
commit
66a523db70
@ -492,12 +492,11 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
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isert_conn->state = ISER_CONN_INIT;
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INIT_LIST_HEAD(&isert_conn->conn_accept_node);
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init_completion(&isert_conn->conn_login_comp);
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init_waitqueue_head(&isert_conn->conn_wait);
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init_waitqueue_head(&isert_conn->conn_wait_comp_err);
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init_completion(&isert_conn->conn_wait);
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init_completion(&isert_conn->conn_wait_comp_err);
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kref_init(&isert_conn->conn_kref);
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kref_get(&isert_conn->conn_kref);
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mutex_init(&isert_conn->conn_mutex);
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mutex_init(&isert_conn->conn_comp_mutex);
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spin_lock_init(&isert_conn->conn_lock);
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cma_id->context = isert_conn;
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@ -688,11 +687,11 @@ isert_disconnect_work(struct work_struct *work)
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pr_debug("isert_disconnect_work(): >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
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mutex_lock(&isert_conn->conn_mutex);
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isert_conn->state = ISER_CONN_DOWN;
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if (isert_conn->state == ISER_CONN_UP)
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isert_conn->state = ISER_CONN_TERMINATING;
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if (isert_conn->post_recv_buf_count == 0 &&
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atomic_read(&isert_conn->post_send_buf_count) == 0) {
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pr_debug("Calling wake_up(&isert_conn->conn_wait);\n");
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mutex_unlock(&isert_conn->conn_mutex);
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goto wake_up;
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}
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@ -712,7 +711,7 @@ isert_disconnect_work(struct work_struct *work)
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mutex_unlock(&isert_conn->conn_mutex);
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wake_up:
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wake_up(&isert_conn->conn_wait);
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complete(&isert_conn->conn_wait);
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isert_put_conn(isert_conn);
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}
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@ -888,16 +887,17 @@ isert_init_send_wr(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd,
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* Coalesce send completion interrupts by only setting IB_SEND_SIGNALED
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* bit for every ISERT_COMP_BATCH_COUNT number of ib_post_send() calls.
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*/
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mutex_lock(&isert_conn->conn_comp_mutex);
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if (coalesce &&
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mutex_lock(&isert_conn->conn_mutex);
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if (coalesce && isert_conn->state == ISER_CONN_UP &&
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++isert_conn->conn_comp_batch < ISERT_COMP_BATCH_COUNT) {
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tx_desc->llnode_active = true;
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llist_add(&tx_desc->comp_llnode, &isert_conn->conn_comp_llist);
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mutex_unlock(&isert_conn->conn_comp_mutex);
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mutex_unlock(&isert_conn->conn_mutex);
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return;
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}
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isert_conn->conn_comp_batch = 0;
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tx_desc->comp_llnode_batch = llist_del_all(&isert_conn->conn_comp_llist);
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mutex_unlock(&isert_conn->conn_comp_mutex);
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mutex_unlock(&isert_conn->conn_mutex);
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send_wr->send_flags = IB_SEND_SIGNALED;
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}
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@ -1464,7 +1464,7 @@ isert_put_cmd(struct isert_cmd *isert_cmd)
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case ISCSI_OP_SCSI_CMD:
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spin_lock_bh(&conn->cmd_lock);
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if (!list_empty(&cmd->i_conn_node))
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list_del(&cmd->i_conn_node);
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list_del_init(&cmd->i_conn_node);
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spin_unlock_bh(&conn->cmd_lock);
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if (cmd->data_direction == DMA_TO_DEVICE)
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@ -1476,7 +1476,7 @@ isert_put_cmd(struct isert_cmd *isert_cmd)
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case ISCSI_OP_SCSI_TMFUNC:
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spin_lock_bh(&conn->cmd_lock);
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if (!list_empty(&cmd->i_conn_node))
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list_del(&cmd->i_conn_node);
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list_del_init(&cmd->i_conn_node);
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spin_unlock_bh(&conn->cmd_lock);
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transport_generic_free_cmd(&cmd->se_cmd, 0);
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@ -1486,7 +1486,7 @@ isert_put_cmd(struct isert_cmd *isert_cmd)
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case ISCSI_OP_TEXT:
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spin_lock_bh(&conn->cmd_lock);
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if (!list_empty(&cmd->i_conn_node))
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list_del(&cmd->i_conn_node);
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list_del_init(&cmd->i_conn_node);
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spin_unlock_bh(&conn->cmd_lock);
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/*
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@ -1549,6 +1549,7 @@ isert_completion_rdma_read(struct iser_tx_desc *tx_desc,
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iscsit_stop_dataout_timer(cmd);
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device->unreg_rdma_mem(isert_cmd, isert_conn);
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cmd->write_data_done = wr->cur_rdma_length;
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wr->send_wr_num = 0;
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pr_debug("Cmd: %p RDMA_READ comp calling execute_cmd\n", isert_cmd);
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spin_lock_bh(&cmd->istate_lock);
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@ -1589,7 +1590,7 @@ isert_do_control_comp(struct work_struct *work)
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pr_debug("Calling iscsit_logout_post_handler >>>>>>>>>>>>>>\n");
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/*
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* Call atomic_dec(&isert_conn->post_send_buf_count)
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* from isert_free_conn()
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* from isert_wait_conn()
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*/
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isert_conn->logout_posted = true;
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iscsit_logout_post_handler(cmd, cmd->conn);
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@ -1613,6 +1614,7 @@ isert_response_completion(struct iser_tx_desc *tx_desc,
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struct ib_device *ib_dev)
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{
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struct iscsi_cmd *cmd = isert_cmd->iscsi_cmd;
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struct isert_rdma_wr *wr = &isert_cmd->rdma_wr;
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if (cmd->i_state == ISTATE_SEND_TASKMGTRSP ||
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cmd->i_state == ISTATE_SEND_LOGOUTRSP ||
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@ -1624,7 +1626,7 @@ isert_response_completion(struct iser_tx_desc *tx_desc,
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queue_work(isert_comp_wq, &isert_cmd->comp_work);
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return;
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}
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atomic_dec(&isert_conn->post_send_buf_count);
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atomic_sub(wr->send_wr_num + 1, &isert_conn->post_send_buf_count);
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cmd->i_state = ISTATE_SENT_STATUS;
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isert_completion_put(tx_desc, isert_cmd, ib_dev);
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@ -1662,7 +1664,7 @@ __isert_send_completion(struct iser_tx_desc *tx_desc,
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case ISER_IB_RDMA_READ:
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pr_debug("isert_send_completion: Got ISER_IB_RDMA_READ:\n");
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atomic_dec(&isert_conn->post_send_buf_count);
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atomic_sub(wr->send_wr_num, &isert_conn->post_send_buf_count);
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isert_completion_rdma_read(tx_desc, isert_cmd);
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break;
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default:
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@ -1691,31 +1693,76 @@ isert_send_completion(struct iser_tx_desc *tx_desc,
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}
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static void
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isert_cq_comp_err(struct iser_tx_desc *tx_desc, struct isert_conn *isert_conn)
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isert_cq_drain_comp_llist(struct isert_conn *isert_conn, struct ib_device *ib_dev)
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{
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struct llist_node *llnode;
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struct isert_rdma_wr *wr;
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struct iser_tx_desc *t;
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mutex_lock(&isert_conn->conn_mutex);
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llnode = llist_del_all(&isert_conn->conn_comp_llist);
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isert_conn->conn_comp_batch = 0;
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mutex_unlock(&isert_conn->conn_mutex);
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while (llnode) {
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t = llist_entry(llnode, struct iser_tx_desc, comp_llnode);
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llnode = llist_next(llnode);
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wr = &t->isert_cmd->rdma_wr;
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atomic_sub(wr->send_wr_num + 1, &isert_conn->post_send_buf_count);
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isert_completion_put(t, t->isert_cmd, ib_dev);
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}
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}
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static void
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isert_cq_tx_comp_err(struct iser_tx_desc *tx_desc, struct isert_conn *isert_conn)
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{
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struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
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struct isert_cmd *isert_cmd = tx_desc->isert_cmd;
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struct llist_node *llnode = tx_desc->comp_llnode_batch;
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struct isert_rdma_wr *wr;
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struct iser_tx_desc *t;
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if (tx_desc) {
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struct isert_cmd *isert_cmd = tx_desc->isert_cmd;
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while (llnode) {
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t = llist_entry(llnode, struct iser_tx_desc, comp_llnode);
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llnode = llist_next(llnode);
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wr = &t->isert_cmd->rdma_wr;
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if (!isert_cmd)
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isert_unmap_tx_desc(tx_desc, ib_dev);
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else
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isert_completion_put(tx_desc, isert_cmd, ib_dev);
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atomic_sub(wr->send_wr_num + 1, &isert_conn->post_send_buf_count);
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isert_completion_put(t, t->isert_cmd, ib_dev);
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}
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tx_desc->comp_llnode_batch = NULL;
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if (!isert_cmd)
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isert_unmap_tx_desc(tx_desc, ib_dev);
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else
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isert_completion_put(tx_desc, isert_cmd, ib_dev);
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}
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static void
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isert_cq_rx_comp_err(struct isert_conn *isert_conn)
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{
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struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
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struct iscsi_conn *conn = isert_conn->conn;
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if (isert_conn->post_recv_buf_count)
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return;
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isert_cq_drain_comp_llist(isert_conn, ib_dev);
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if (conn->sess) {
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target_sess_cmd_list_set_waiting(conn->sess->se_sess);
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target_wait_for_sess_cmds(conn->sess->se_sess);
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}
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if (isert_conn->post_recv_buf_count == 0 &&
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atomic_read(&isert_conn->post_send_buf_count) == 0) {
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pr_debug("isert_cq_comp_err >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
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pr_debug("Calling wake_up from isert_cq_comp_err\n");
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while (atomic_read(&isert_conn->post_send_buf_count))
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msleep(3000);
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mutex_lock(&isert_conn->conn_mutex);
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if (isert_conn->state != ISER_CONN_DOWN)
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isert_conn->state = ISER_CONN_TERMINATING;
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mutex_unlock(&isert_conn->conn_mutex);
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mutex_lock(&isert_conn->conn_mutex);
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isert_conn->state = ISER_CONN_DOWN;
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mutex_unlock(&isert_conn->conn_mutex);
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wake_up(&isert_conn->conn_wait_comp_err);
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}
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complete(&isert_conn->conn_wait_comp_err);
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}
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static void
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@ -1740,8 +1787,14 @@ isert_cq_tx_work(struct work_struct *work)
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pr_debug("TX wc.status != IB_WC_SUCCESS >>>>>>>>>>>>>>\n");
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pr_debug("TX wc.status: 0x%08x\n", wc.status);
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pr_debug("TX wc.vendor_err: 0x%08x\n", wc.vendor_err);
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atomic_dec(&isert_conn->post_send_buf_count);
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isert_cq_comp_err(tx_desc, isert_conn);
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if (wc.wr_id != ISER_FASTREG_LI_WRID) {
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if (tx_desc->llnode_active)
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continue;
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atomic_dec(&isert_conn->post_send_buf_count);
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isert_cq_tx_comp_err(tx_desc, isert_conn);
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}
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}
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}
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@ -1784,7 +1837,7 @@ isert_cq_rx_work(struct work_struct *work)
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wc.vendor_err);
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}
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isert_conn->post_recv_buf_count--;
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isert_cq_comp_err(NULL, isert_conn);
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isert_cq_rx_comp_err(isert_conn);
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}
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}
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@ -2202,6 +2255,7 @@ isert_fast_reg_mr(struct fast_reg_descriptor *fr_desc,
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if (!fr_desc->valid) {
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memset(&inv_wr, 0, sizeof(inv_wr));
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inv_wr.wr_id = ISER_FASTREG_LI_WRID;
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inv_wr.opcode = IB_WR_LOCAL_INV;
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inv_wr.ex.invalidate_rkey = fr_desc->data_mr->rkey;
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wr = &inv_wr;
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@ -2212,6 +2266,7 @@ isert_fast_reg_mr(struct fast_reg_descriptor *fr_desc,
|
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|
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/* Prepare FASTREG WR */
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memset(&fr_wr, 0, sizeof(fr_wr));
|
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fr_wr.wr_id = ISER_FASTREG_LI_WRID;
|
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fr_wr.opcode = IB_WR_FAST_REG_MR;
|
||||
fr_wr.wr.fast_reg.iova_start =
|
||||
fr_desc->data_frpl->page_list[0] + page_off;
|
||||
@ -2377,12 +2432,12 @@ isert_put_datain(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
|
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isert_init_send_wr(isert_conn, isert_cmd,
|
||||
&isert_cmd->tx_desc.send_wr, true);
|
||||
|
||||
atomic_inc(&isert_conn->post_send_buf_count);
|
||||
atomic_add(wr->send_wr_num + 1, &isert_conn->post_send_buf_count);
|
||||
|
||||
rc = ib_post_send(isert_conn->conn_qp, wr->send_wr, &wr_failed);
|
||||
if (rc) {
|
||||
pr_warn("ib_post_send() failed for IB_WR_RDMA_WRITE\n");
|
||||
atomic_dec(&isert_conn->post_send_buf_count);
|
||||
atomic_sub(wr->send_wr_num + 1, &isert_conn->post_send_buf_count);
|
||||
}
|
||||
pr_debug("Cmd: %p posted RDMA_WRITE + Response for iSER Data READ\n",
|
||||
isert_cmd);
|
||||
@ -2410,12 +2465,12 @@ isert_get_dataout(struct iscsi_conn *conn, struct iscsi_cmd *cmd, bool recovery)
|
||||
return rc;
|
||||
}
|
||||
|
||||
atomic_inc(&isert_conn->post_send_buf_count);
|
||||
atomic_add(wr->send_wr_num, &isert_conn->post_send_buf_count);
|
||||
|
||||
rc = ib_post_send(isert_conn->conn_qp, wr->send_wr, &wr_failed);
|
||||
if (rc) {
|
||||
pr_warn("ib_post_send() failed for IB_WR_RDMA_READ\n");
|
||||
atomic_dec(&isert_conn->post_send_buf_count);
|
||||
atomic_sub(wr->send_wr_num, &isert_conn->post_send_buf_count);
|
||||
}
|
||||
pr_debug("Cmd: %p posted RDMA_READ memory for ISER Data WRITE\n",
|
||||
isert_cmd);
|
||||
@ -2702,22 +2757,11 @@ isert_free_np(struct iscsi_np *np)
|
||||
kfree(isert_np);
|
||||
}
|
||||
|
||||
static int isert_check_state(struct isert_conn *isert_conn, int state)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&isert_conn->conn_mutex);
|
||||
ret = (isert_conn->state == state);
|
||||
mutex_unlock(&isert_conn->conn_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void isert_free_conn(struct iscsi_conn *conn)
|
||||
static void isert_wait_conn(struct iscsi_conn *conn)
|
||||
{
|
||||
struct isert_conn *isert_conn = conn->context;
|
||||
|
||||
pr_debug("isert_free_conn: Starting \n");
|
||||
pr_debug("isert_wait_conn: Starting \n");
|
||||
/*
|
||||
* Decrement post_send_buf_count for special case when called
|
||||
* from isert_do_control_comp() -> iscsit_logout_post_handler()
|
||||
@ -2727,38 +2771,29 @@ static void isert_free_conn(struct iscsi_conn *conn)
|
||||
atomic_dec(&isert_conn->post_send_buf_count);
|
||||
|
||||
if (isert_conn->conn_cm_id && isert_conn->state != ISER_CONN_DOWN) {
|
||||
pr_debug("Calling rdma_disconnect from isert_free_conn\n");
|
||||
pr_debug("Calling rdma_disconnect from isert_wait_conn\n");
|
||||
rdma_disconnect(isert_conn->conn_cm_id);
|
||||
}
|
||||
/*
|
||||
* Only wait for conn_wait_comp_err if the isert_conn made it
|
||||
* into full feature phase..
|
||||
*/
|
||||
if (isert_conn->state == ISER_CONN_UP) {
|
||||
pr_debug("isert_free_conn: Before wait_event comp_err %d\n",
|
||||
isert_conn->state);
|
||||
mutex_unlock(&isert_conn->conn_mutex);
|
||||
|
||||
wait_event(isert_conn->conn_wait_comp_err,
|
||||
(isert_check_state(isert_conn, ISER_CONN_TERMINATING)));
|
||||
|
||||
wait_event(isert_conn->conn_wait,
|
||||
(isert_check_state(isert_conn, ISER_CONN_DOWN)));
|
||||
|
||||
isert_put_conn(isert_conn);
|
||||
return;
|
||||
}
|
||||
if (isert_conn->state == ISER_CONN_INIT) {
|
||||
mutex_unlock(&isert_conn->conn_mutex);
|
||||
isert_put_conn(isert_conn);
|
||||
return;
|
||||
}
|
||||
pr_debug("isert_free_conn: wait_event conn_wait %d\n",
|
||||
isert_conn->state);
|
||||
if (isert_conn->state == ISER_CONN_UP)
|
||||
isert_conn->state = ISER_CONN_TERMINATING;
|
||||
mutex_unlock(&isert_conn->conn_mutex);
|
||||
|
||||
wait_event(isert_conn->conn_wait,
|
||||
(isert_check_state(isert_conn, ISER_CONN_DOWN)));
|
||||
wait_for_completion(&isert_conn->conn_wait_comp_err);
|
||||
|
||||
wait_for_completion(&isert_conn->conn_wait);
|
||||
}
|
||||
|
||||
static void isert_free_conn(struct iscsi_conn *conn)
|
||||
{
|
||||
struct isert_conn *isert_conn = conn->context;
|
||||
|
||||
isert_put_conn(isert_conn);
|
||||
}
|
||||
@ -2771,6 +2806,7 @@ static struct iscsit_transport iser_target_transport = {
|
||||
.iscsit_setup_np = isert_setup_np,
|
||||
.iscsit_accept_np = isert_accept_np,
|
||||
.iscsit_free_np = isert_free_np,
|
||||
.iscsit_wait_conn = isert_wait_conn,
|
||||
.iscsit_free_conn = isert_free_conn,
|
||||
.iscsit_get_login_rx = isert_get_login_rx,
|
||||
.iscsit_put_login_tx = isert_put_login_tx,
|
||||
|
||||
@ -6,6 +6,7 @@
|
||||
|
||||
#define ISERT_RDMA_LISTEN_BACKLOG 10
|
||||
#define ISCSI_ISER_SG_TABLESIZE 256
|
||||
#define ISER_FASTREG_LI_WRID 0xffffffffffffffffULL
|
||||
|
||||
enum isert_desc_type {
|
||||
ISCSI_TX_CONTROL,
|
||||
@ -45,6 +46,7 @@ struct iser_tx_desc {
|
||||
struct isert_cmd *isert_cmd;
|
||||
struct llist_node *comp_llnode_batch;
|
||||
struct llist_node comp_llnode;
|
||||
bool llnode_active;
|
||||
struct ib_send_wr send_wr;
|
||||
} __packed;
|
||||
|
||||
@ -116,8 +118,8 @@ struct isert_conn {
|
||||
struct isert_device *conn_device;
|
||||
struct work_struct conn_logout_work;
|
||||
struct mutex conn_mutex;
|
||||
wait_queue_head_t conn_wait;
|
||||
wait_queue_head_t conn_wait_comp_err;
|
||||
struct completion conn_wait;
|
||||
struct completion conn_wait_comp_err;
|
||||
struct kref conn_kref;
|
||||
struct list_head conn_fr_pool;
|
||||
int conn_fr_pool_size;
|
||||
@ -126,7 +128,6 @@ struct isert_conn {
|
||||
#define ISERT_COMP_BATCH_COUNT 8
|
||||
int conn_comp_batch;
|
||||
struct llist_head conn_comp_llist;
|
||||
struct mutex conn_comp_mutex;
|
||||
};
|
||||
|
||||
#define ISERT_MAX_CQ 64
|
||||
|
||||
@ -785,7 +785,7 @@ static void iscsit_ack_from_expstatsn(struct iscsi_conn *conn, u32 exp_statsn)
|
||||
spin_unlock_bh(&conn->cmd_lock);
|
||||
|
||||
list_for_each_entry_safe(cmd, cmd_p, &ack_list, i_conn_node) {
|
||||
list_del(&cmd->i_conn_node);
|
||||
list_del_init(&cmd->i_conn_node);
|
||||
iscsit_free_cmd(cmd, false);
|
||||
}
|
||||
}
|
||||
@ -3708,7 +3708,7 @@ iscsit_immediate_queue(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int state
|
||||
break;
|
||||
case ISTATE_REMOVE:
|
||||
spin_lock_bh(&conn->cmd_lock);
|
||||
list_del(&cmd->i_conn_node);
|
||||
list_del_init(&cmd->i_conn_node);
|
||||
spin_unlock_bh(&conn->cmd_lock);
|
||||
|
||||
iscsit_free_cmd(cmd, false);
|
||||
@ -4151,7 +4151,7 @@ static void iscsit_release_commands_from_conn(struct iscsi_conn *conn)
|
||||
spin_lock_bh(&conn->cmd_lock);
|
||||
list_for_each_entry_safe(cmd, cmd_tmp, &conn->conn_cmd_list, i_conn_node) {
|
||||
|
||||
list_del(&cmd->i_conn_node);
|
||||
list_del_init(&cmd->i_conn_node);
|
||||
spin_unlock_bh(&conn->cmd_lock);
|
||||
|
||||
iscsit_increment_maxcmdsn(cmd, sess);
|
||||
@ -4196,6 +4196,10 @@ int iscsit_close_connection(
|
||||
iscsit_stop_timers_for_cmds(conn);
|
||||
iscsit_stop_nopin_response_timer(conn);
|
||||
iscsit_stop_nopin_timer(conn);
|
||||
|
||||
if (conn->conn_transport->iscsit_wait_conn)
|
||||
conn->conn_transport->iscsit_wait_conn(conn);
|
||||
|
||||
iscsit_free_queue_reqs_for_conn(conn);
|
||||
|
||||
/*
|
||||
|
||||
@ -138,7 +138,7 @@ void iscsit_free_connection_recovery_entires(struct iscsi_session *sess)
|
||||
list_for_each_entry_safe(cmd, cmd_tmp,
|
||||
&cr->conn_recovery_cmd_list, i_conn_node) {
|
||||
|
||||
list_del(&cmd->i_conn_node);
|
||||
list_del_init(&cmd->i_conn_node);
|
||||
cmd->conn = NULL;
|
||||
spin_unlock(&cr->conn_recovery_cmd_lock);
|
||||
iscsit_free_cmd(cmd, true);
|
||||
@ -160,7 +160,7 @@ void iscsit_free_connection_recovery_entires(struct iscsi_session *sess)
|
||||
list_for_each_entry_safe(cmd, cmd_tmp,
|
||||
&cr->conn_recovery_cmd_list, i_conn_node) {
|
||||
|
||||
list_del(&cmd->i_conn_node);
|
||||
list_del_init(&cmd->i_conn_node);
|
||||
cmd->conn = NULL;
|
||||
spin_unlock(&cr->conn_recovery_cmd_lock);
|
||||
iscsit_free_cmd(cmd, true);
|
||||
@ -216,7 +216,7 @@ int iscsit_remove_cmd_from_connection_recovery(
|
||||
}
|
||||
cr = cmd->cr;
|
||||
|
||||
list_del(&cmd->i_conn_node);
|
||||
list_del_init(&cmd->i_conn_node);
|
||||
return --cr->cmd_count;
|
||||
}
|
||||
|
||||
@ -297,7 +297,7 @@ int iscsit_discard_unacknowledged_ooo_cmdsns_for_conn(struct iscsi_conn *conn)
|
||||
if (!(cmd->cmd_flags & ICF_OOO_CMDSN))
|
||||
continue;
|
||||
|
||||
list_del(&cmd->i_conn_node);
|
||||
list_del_init(&cmd->i_conn_node);
|
||||
|
||||
spin_unlock_bh(&conn->cmd_lock);
|
||||
iscsit_free_cmd(cmd, true);
|
||||
@ -335,7 +335,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
|
||||
/*
|
||||
* Only perform connection recovery on ISCSI_OP_SCSI_CMD or
|
||||
* ISCSI_OP_NOOP_OUT opcodes. For all other opcodes call
|
||||
* list_del(&cmd->i_conn_node); to release the command to the
|
||||
* list_del_init(&cmd->i_conn_node); to release the command to the
|
||||
* session pool and remove it from the connection's list.
|
||||
*
|
||||
* Also stop the DataOUT timer, which will be restarted after
|
||||
@ -351,7 +351,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
|
||||
" CID: %hu\n", cmd->iscsi_opcode,
|
||||
cmd->init_task_tag, cmd->cmd_sn, conn->cid);
|
||||
|
||||
list_del(&cmd->i_conn_node);
|
||||
list_del_init(&cmd->i_conn_node);
|
||||
spin_unlock_bh(&conn->cmd_lock);
|
||||
iscsit_free_cmd(cmd, true);
|
||||
spin_lock_bh(&conn->cmd_lock);
|
||||
@ -371,7 +371,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
|
||||
*/
|
||||
if (!(cmd->cmd_flags & ICF_OOO_CMDSN) && !cmd->immediate_cmd &&
|
||||
iscsi_sna_gte(cmd->cmd_sn, conn->sess->exp_cmd_sn)) {
|
||||
list_del(&cmd->i_conn_node);
|
||||
list_del_init(&cmd->i_conn_node);
|
||||
spin_unlock_bh(&conn->cmd_lock);
|
||||
iscsit_free_cmd(cmd, true);
|
||||
spin_lock_bh(&conn->cmd_lock);
|
||||
@ -393,7 +393,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
|
||||
|
||||
cmd->sess = conn->sess;
|
||||
|
||||
list_del(&cmd->i_conn_node);
|
||||
list_del_init(&cmd->i_conn_node);
|
||||
spin_unlock_bh(&conn->cmd_lock);
|
||||
|
||||
iscsit_free_all_datain_reqs(cmd);
|
||||
|
||||
@ -137,7 +137,7 @@ struct iscsi_portal_group *iscsit_get_tpg_from_np(
|
||||
list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) {
|
||||
|
||||
spin_lock(&tpg->tpg_state_lock);
|
||||
if (tpg->tpg_state == TPG_STATE_FREE) {
|
||||
if (tpg->tpg_state != TPG_STATE_ACTIVE) {
|
||||
spin_unlock(&tpg->tpg_state_lock);
|
||||
continue;
|
||||
}
|
||||
|
||||
@ -1079,25 +1079,31 @@ sbc_dif_copy_prot(struct se_cmd *cmd, unsigned int sectors, bool read,
|
||||
left = sectors * dev->prot_length;
|
||||
|
||||
for_each_sg(cmd->t_prot_sg, psg, cmd->t_prot_nents, i) {
|
||||
|
||||
len = min(psg->length, left);
|
||||
if (offset >= sg->length) {
|
||||
sg = sg_next(sg);
|
||||
offset = 0;
|
||||
}
|
||||
unsigned int psg_len, copied = 0;
|
||||
|
||||
paddr = kmap_atomic(sg_page(psg)) + psg->offset;
|
||||
addr = kmap_atomic(sg_page(sg)) + sg->offset + offset;
|
||||
psg_len = min(left, psg->length);
|
||||
while (psg_len) {
|
||||
len = min(psg_len, sg->length - offset);
|
||||
addr = kmap_atomic(sg_page(sg)) + sg->offset + offset;
|
||||
|
||||
if (read)
|
||||
memcpy(paddr, addr, len);
|
||||
else
|
||||
memcpy(addr, paddr, len);
|
||||
if (read)
|
||||
memcpy(paddr + copied, addr, len);
|
||||
else
|
||||
memcpy(addr, paddr + copied, len);
|
||||
|
||||
left -= len;
|
||||
offset += len;
|
||||
left -= len;
|
||||
offset += len;
|
||||
copied += len;
|
||||
psg_len -= len;
|
||||
|
||||
if (offset >= sg->length) {
|
||||
sg = sg_next(sg);
|
||||
offset = 0;
|
||||
}
|
||||
kunmap_atomic(addr);
|
||||
}
|
||||
kunmap_atomic(paddr);
|
||||
kunmap_atomic(addr);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -12,6 +12,7 @@ struct iscsit_transport {
|
||||
int (*iscsit_setup_np)(struct iscsi_np *, struct __kernel_sockaddr_storage *);
|
||||
int (*iscsit_accept_np)(struct iscsi_np *, struct iscsi_conn *);
|
||||
void (*iscsit_free_np)(struct iscsi_np *);
|
||||
void (*iscsit_wait_conn)(struct iscsi_conn *);
|
||||
void (*iscsit_free_conn)(struct iscsi_conn *);
|
||||
int (*iscsit_get_login_rx)(struct iscsi_conn *, struct iscsi_login *);
|
||||
int (*iscsit_put_login_tx)(struct iscsi_conn *, struct iscsi_login *, u32);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user