diff options
Diffstat (limited to 'drivers/scsi/qedi/qedi_fw.c')
| -rw-r--r-- | drivers/scsi/qedi/qedi_fw.c | 42 |
1 files changed, 28 insertions, 14 deletions
diff --git a/drivers/scsi/qedi/qedi_fw.c b/drivers/scsi/qedi/qedi_fw.c index 4ee1ce1dcdef..3de1422ce80b 100644 --- a/drivers/scsi/qedi/qedi_fw.c +++ b/drivers/scsi/qedi/qedi_fw.c @@ -156,7 +156,6 @@ static void qedi_tmf_resp_work(struct work_struct *work) struct iscsi_tm_rsp *resp_hdr_ptr; int rval = 0; - set_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags); resp_hdr_ptr = (struct iscsi_tm_rsp *)qedi_cmd->tmf_resp_buf; rval = qedi_cleanup_all_io(qedi, qedi_conn, qedi_cmd->task, true); @@ -169,7 +168,10 @@ static void qedi_tmf_resp_work(struct work_struct *work) exit_tmf_resp: kfree(resp_hdr_ptr); - clear_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags); + + spin_lock(&qedi_conn->tmf_work_lock); + qedi_conn->fw_cleanup_works--; + spin_unlock(&qedi_conn->tmf_work_lock); } static void qedi_process_tmf_resp(struct qedi_ctx *qedi, @@ -225,16 +227,25 @@ static void qedi_process_tmf_resp(struct qedi_ctx *qedi, } spin_unlock(&qedi_conn->list_lock); - if (((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) == - ISCSI_TM_FUNC_LOGICAL_UNIT_RESET) || - ((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) == - ISCSI_TM_FUNC_TARGET_WARM_RESET) || - ((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) == - ISCSI_TM_FUNC_TARGET_COLD_RESET)) { + spin_lock(&qedi_conn->tmf_work_lock); + switch (tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) { + case ISCSI_TM_FUNC_LOGICAL_UNIT_RESET: + case ISCSI_TM_FUNC_TARGET_WARM_RESET: + case ISCSI_TM_FUNC_TARGET_COLD_RESET: + if (qedi_conn->ep_disconnect_starting) { + /* Session is down so ep_disconnect will clean up */ + spin_unlock(&qedi_conn->tmf_work_lock); + goto unblock_sess; + } + + qedi_conn->fw_cleanup_works++; + spin_unlock(&qedi_conn->tmf_work_lock); + INIT_WORK(&qedi_cmd->tmf_work, qedi_tmf_resp_work); queue_work(qedi->tmf_thread, &qedi_cmd->tmf_work); goto unblock_sess; } + spin_unlock(&qedi_conn->tmf_work_lock); __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr_ptr, NULL, 0); kfree(resp_hdr_ptr); @@ -1359,7 +1370,6 @@ static void qedi_abort_work(struct work_struct *work) mtask = qedi_cmd->task; tmf_hdr = (struct iscsi_tm *)mtask->hdr; - set_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags); spin_lock_bh(&conn->session->back_lock); ctask = iscsi_itt_to_ctask(conn, tmf_hdr->rtt); @@ -1429,10 +1439,7 @@ static void qedi_abort_work(struct work_struct *work) send_tmf: send_iscsi_tmf(qedi_conn, qedi_cmd->task, ctask); - -clear_cleanup: - clear_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags); - return; + goto clear_cleanup; ldel_exit: spin_lock_bh(&qedi_conn->tmf_work_lock); @@ -1451,7 +1458,10 @@ ldel_exit: } spin_unlock(&qedi_conn->list_lock); - clear_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags); +clear_cleanup: + spin_lock(&qedi_conn->tmf_work_lock); + qedi_conn->fw_cleanup_works--; + spin_unlock(&qedi_conn->tmf_work_lock); } static int send_iscsi_tmf(struct qedi_conn *qedi_conn, struct iscsi_task *mtask, @@ -1546,6 +1556,10 @@ int qedi_send_iscsi_tmf(struct qedi_conn *qedi_conn, struct iscsi_task *mtask) switch (tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) { case ISCSI_TM_FUNC_ABORT_TASK: + spin_lock(&qedi_conn->tmf_work_lock); + qedi_conn->fw_cleanup_works++; + spin_unlock(&qedi_conn->tmf_work_lock); + INIT_WORK(&qedi_cmd->tmf_work, qedi_abort_work); queue_work(qedi->tmf_thread, &qedi_cmd->tmf_work); break; |