From 4a4a11b98a39f479cdccef879635a72b0422049b Mon Sep 17 00:00:00 2001 From: Jayamohan Kallickal Date: Fri, 5 Apr 2013 20:38:31 -0700 Subject: [PATCH] [SCSI] be2iscsi : Fix the NOP-In handling code path When target send a NOP-IN with valid TTT, driver issues a NOP-OUT and the task was not freed from driver. The task list available for the session used to run out, and as no more task list were available no more iSCSI commands were exchanged on that session. This patches fixed the issue, by calling iscsi_put_task. Signed-off-by: Minh Tran Signed-off-by: John Soni Jose Signed-off-by: Jayamohan Kallickal Reviewed-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/be2iscsi/be_iscsi.c | 3 ++- drivers/scsi/be2iscsi/be_main.c | 21 ++++++++------------- drivers/scsi/be2iscsi/be_main.h | 3 ++- 3 files changed, 12 insertions(+), 15 deletions(-) diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c index dd5beff..5b64fd4 100644 --- a/drivers/scsi/be2iscsi/be_iscsi.c +++ b/drivers/scsi/be2iscsi/be_iscsi.c @@ -1005,7 +1005,8 @@ static void beiscsi_free_ep(struct beiscsi_endpoint *beiscsi_ep) beiscsi_conn = beiscsi_ep->conn; if (beiscsi_conn->login_in_progress) { - beiscsi_free_mgmt_task_handles(beiscsi_conn); + beiscsi_free_mgmt_task_handles(beiscsi_conn, + beiscsi_conn->task); beiscsi_conn->login_in_progress = 0; } } diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index ff89b4c..a60a43d 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -1367,8 +1367,6 @@ hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn, struct hwi_controller *phwi_ctrlr; struct iscsi_task *task; struct beiscsi_io_task *io_task; - struct iscsi_conn *conn = beiscsi_conn->conn; - struct iscsi_session *session = conn->session; uint16_t wrb_index, cid; phwi_ctrlr = phba->phwi_ctrlr; @@ -1390,12 +1388,8 @@ hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn, task = pwrb_handle->pio_handle; io_task = task->dd_data; - spin_lock_bh(&phba->mgmt_sgl_lock); - free_mgmt_sgl_handle(phba, io_task->psgl_handle); - spin_unlock_bh(&phba->mgmt_sgl_lock); - spin_lock_bh(&session->lock); - free_wrb_handle(phba, pwrb_context, pwrb_handle); - spin_unlock_bh(&session->lock); + memset(io_task->pwrb_handle->pwrb, 0, sizeof(struct iscsi_wrb)); + iscsi_put_task(task); } static void @@ -4073,11 +4067,13 @@ static void beiscsi_clean_port(struct beiscsi_hba *phba) /** * beiscsi_free_mgmt_task_handles()- Free driver CXN resources * @beiscsi_conn: ptr to the conn to be cleaned up + * @task: ptr to iscsi_task resource to be freed. * * Free driver mgmt resources binded to CXN. **/ void -beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn) +beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn, + struct iscsi_task *task) { struct beiscsi_io_task *io_task; struct beiscsi_hba *phba = beiscsi_conn->phba; @@ -4088,7 +4084,7 @@ beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn) pwrb_context = &phwi_ctrlr->wrb_context [beiscsi_conn->beiscsi_conn_cid - phba->fw_config.iscsi_cid_start]; - io_task = beiscsi_conn->task->dd_data; + io_task = task->dd_data; if (io_task->pwrb_handle) { memset(io_task->pwrb_handle->pwrb, 0, @@ -4102,8 +4098,8 @@ beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn) spin_lock_bh(&phba->mgmt_sgl_lock); free_mgmt_sgl_handle(phba, io_task->psgl_handle); - spin_unlock_bh(&phba->mgmt_sgl_lock); io_task->psgl_handle = NULL; + spin_unlock_bh(&phba->mgmt_sgl_lock); } if (io_task->mtask_addr) @@ -4153,7 +4149,7 @@ static void beiscsi_cleanup_task(struct iscsi_task *task) } } else { if (!beiscsi_conn->login_in_progress) - beiscsi_free_mgmt_task_handles(beiscsi_conn); + beiscsi_free_mgmt_task_handles(beiscsi_conn, task); } } @@ -4381,7 +4377,6 @@ int beiscsi_iotask_v2(struct iscsi_task *task, struct scatterlist *sg, unsigned int doorbell = 0; pwrb = io_task->pwrb_handle->pwrb; - memset(pwrb, 0, sizeof(*pwrb)); io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0; io_task->bhs_len = sizeof(struct be_cmd_bhs); diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h index 3c5df92..ac4ef34 100644 --- a/drivers/scsi/be2iscsi/be_main.h +++ b/drivers/scsi/be2iscsi/be_main.h @@ -753,7 +753,8 @@ void free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle); void beiscsi_process_all_cqs(struct work_struct *work); -void beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn); +void beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn, + struct iscsi_task *task); static inline bool beiscsi_error(struct beiscsi_hba *phba) { -- 2.7.4