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author | David S. Miller <davem@davemloft.net> | 2011-09-22 03:23:13 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2011-09-22 03:23:13 -0400 |
commit | 8decf868790b48a727d7e7ca164f2bcd3c1389c0 (patch) | |
tree | b759a5f861f842af7ea76f9011b579d06e9d5508 /drivers/target/tcm_fc/tfc_cmd.c | |
parent | 3fc72370186be2f9d4d6ef06d99e1caa5d92c564 (diff) | |
parent | d93dc5c4478c1fd5de85a3e8aece9aad7bbae044 (diff) | |
download | linux-8decf868790b48a727d7e7ca164f2bcd3c1389c0.tar.gz linux-8decf868790b48a727d7e7ca164f2bcd3c1389c0.tar.bz2 linux-8decf868790b48a727d7e7ca164f2bcd3c1389c0.zip |
Merge branch 'master' of github.com:davem330/net
Conflicts:
MAINTAINERS
drivers/net/Kconfig
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
drivers/net/ethernet/broadcom/tg3.c
drivers/net/wireless/iwlwifi/iwl-pci.c
drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
drivers/net/wireless/rt2x00/rt2800usb.c
drivers/net/wireless/wl12xx/main.c
Diffstat (limited to 'drivers/target/tcm_fc/tfc_cmd.c')
-rw-r--r-- | drivers/target/tcm_fc/tfc_cmd.c | 90 |
1 files changed, 11 insertions, 79 deletions
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index 5654dc22f7ae..80fbcde00cb6 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -62,8 +62,8 @@ void ft_dump_cmd(struct ft_cmd *cmd, const char *caller) int count; se_cmd = &cmd->se_cmd; - pr_debug("%s: cmd %p state %d sess %p seq %p se_cmd %p\n", - caller, cmd, cmd->state, cmd->sess, cmd->seq, se_cmd); + pr_debug("%s: cmd %p sess %p seq %p se_cmd %p\n", + caller, cmd, cmd->sess, cmd->seq, se_cmd); pr_debug("%s: cmd %p cdb %p\n", caller, cmd, cmd->cdb); pr_debug("%s: cmd %p lun %d\n", caller, cmd, cmd->lun); @@ -90,38 +90,6 @@ void ft_dump_cmd(struct ft_cmd *cmd, const char *caller) 16, 4, cmd->cdb, MAX_COMMAND_SIZE, 0); } -static void ft_queue_cmd(struct ft_sess *sess, struct ft_cmd *cmd) -{ - struct ft_tpg *tpg = sess->tport->tpg; - struct se_queue_obj *qobj = &tpg->qobj; - unsigned long flags; - - qobj = &sess->tport->tpg->qobj; - spin_lock_irqsave(&qobj->cmd_queue_lock, flags); - list_add_tail(&cmd->se_req.qr_list, &qobj->qobj_list); - atomic_inc(&qobj->queue_cnt); - spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags); - - wake_up_process(tpg->thread); -} - -static struct ft_cmd *ft_dequeue_cmd(struct se_queue_obj *qobj) -{ - unsigned long flags; - struct se_queue_req *qr; - - spin_lock_irqsave(&qobj->cmd_queue_lock, flags); - if (list_empty(&qobj->qobj_list)) { - spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags); - return NULL; - } - qr = list_first_entry(&qobj->qobj_list, struct se_queue_req, qr_list); - list_del(&qr->qr_list); - atomic_dec(&qobj->queue_cnt); - spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags); - return container_of(qr, struct ft_cmd, se_req); -} - static void ft_free_cmd(struct ft_cmd *cmd) { struct fc_frame *fp; @@ -282,9 +250,7 @@ u32 ft_get_task_tag(struct se_cmd *se_cmd) int ft_get_cmd_state(struct se_cmd *se_cmd) { - struct ft_cmd *cmd = container_of(se_cmd, struct ft_cmd, se_cmd); - - return cmd->state; + return 0; } int ft_is_state_remove(struct se_cmd *se_cmd) @@ -505,6 +471,8 @@ int ft_queue_tm_resp(struct se_cmd *se_cmd) return 0; } +static void ft_send_work(struct work_struct *work); + /* * Handle incoming FCP command. */ @@ -523,7 +491,9 @@ static void ft_recv_cmd(struct ft_sess *sess, struct fc_frame *fp) goto busy; } cmd->req_frame = fp; /* hold frame during cmd */ - ft_queue_cmd(sess, cmd); + + INIT_WORK(&cmd->work, ft_send_work); + queue_work(sess->tport->tpg->workqueue, &cmd->work); return; busy: @@ -563,12 +533,13 @@ void ft_recv_req(struct ft_sess *sess, struct fc_frame *fp) /* * Send new command to target. */ -static void ft_send_cmd(struct ft_cmd *cmd) +static void ft_send_work(struct work_struct *work) { + struct ft_cmd *cmd = container_of(work, struct ft_cmd, work); struct fc_frame_header *fh = fc_frame_header_get(cmd->req_frame); struct se_cmd *se_cmd; struct fcp_cmnd *fcp; - int data_dir; + int data_dir = 0; u32 data_len; int task_attr; int ret; @@ -675,42 +646,3 @@ static void ft_send_cmd(struct ft_cmd *cmd) err: ft_send_resp_code_and_free(cmd, FCP_CMND_FIELDS_INVALID); } - -/* - * Handle request in the command thread. - */ -static void ft_exec_req(struct ft_cmd *cmd) -{ - pr_debug("cmd state %x\n", cmd->state); - switch (cmd->state) { - case FC_CMD_ST_NEW: - ft_send_cmd(cmd); - break; - default: - break; - } -} - -/* - * Processing thread. - * Currently one thread per tpg. - */ -int ft_thread(void *arg) -{ - struct ft_tpg *tpg = arg; - struct se_queue_obj *qobj = &tpg->qobj; - struct ft_cmd *cmd; - - while (!kthread_should_stop()) { - schedule_timeout_interruptible(MAX_SCHEDULE_TIMEOUT); - if (kthread_should_stop()) - goto out; - - cmd = ft_dequeue_cmd(qobj); - if (cmd) - ft_exec_req(cmd); - } - -out: - return 0; -} |