Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] bnx2i: Bug fixes related to MTU change issue when there are active iscsi sessions
  [SCSI] ibmvscsi: fix DMA API misuse
  [SCSI] wd7000: fix reset handler typo spin_unlock_irq() => spin_lock_irq()
  [SCSI] zfcp: Fix tracing of requests with error status
  [SCSI] zfcp: Update MAINTAINERS entry
  [SCSI] iscsi_tcp: fix relogin/shutdown hang
  [SCSI] qla2xxx: fix lock imbalance
  [SCSI] lpfc: fix lock imbalances
  [SCSI] be2iscsi: fix lock imbalance
  [SCSI] dpt_i2o: several use after free issues

diff --git a/MAINTAINERS b/MAINTAINERS
index a0e3c3a..a2d9254 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4791,12 +4791,11 @@ F:      drivers/s390/crypto/
 
 S390 ZFCP DRIVER
 M:     Christof Schmitt <christof.schmitt@de.ibm.com>
-M:     Martin Peschke <mp3@de.ibm.com>
+M:     Swen Schillig <swen@vnet.ibm.com>
 M:     linux390@de.ibm.com
 L:     linux-s390@vger.kernel.org
 W:     http://www.ibm.com/developerworks/linux/linux390/
 S:     Supported
-F:     Documentation/s390/zfcpdump.txt
 F:     drivers/s390/scsi/zfcp_*
 
 S390 IUCV NETWORK LAYER

diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 1856489..b3b1d2f 100644 (file)
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -2105,7 +2105,8 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
        blktrc.inb_usage = req->qdio_req.qdio_inb_usage;
        blktrc.outb_usage = req->qdio_req.qdio_outb_usage;
 
-       if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) {
+       if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA &&
+           !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) {
                blktrc.flags |= ZFCP_BLK_LAT_VALID;
                blktrc.channel_lat = lat_in->channel_lat * ticks;
                blktrc.fabric_lat = lat_in->fabric_lat * ticks;
@@ -2157,9 +2158,8 @@ static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req)
        fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp;
        zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt);
 
-       zfcp_fsf_req_trace(req, scpnt);
-
 skip_fsfstatus:
+       zfcp_fsf_req_trace(req, scpnt);
        zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req);
 
        scpnt->host_scribble = NULL;

diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 72617b6..e641922 100644 (file)
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -169,6 +169,7 @@ unsigned char mgmt_invalidate_icds(struct beiscsi_hba *phba,
                SE_DEBUG(DBG_LVL_1,
                         "Failed to allocate memory for"
                         "mgmt_invalidate_icds \n");
+               spin_unlock(&ctrl->mbox_lock);
                return -1;
        }
        nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);

diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index 6cf9dc3..6b624e7 100644 (file)
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -362,6 +362,7 @@ struct bnx2i_hba {
        u32 num_ccell;
 
        int ofld_conns_active;
+       wait_queue_head_t eh_wait;
 
        int max_active_conns;
        struct iscsi_cid_queue cid_que;
@@ -381,6 +382,7 @@ struct bnx2i_hba {
        spinlock_t lock;        /* protects hba structure access */
        struct mutex net_dev_lock;/* sync net device access */
 
+       int hba_shutdown_tmo;
        /*
         * PCI related info.
         */

diff --git a/drivers/scsi/bnx2i/bnx2i_init.c b/drivers/scsi/bnx2i/bnx2i_init.c
index 6d8172e..5d9296c 100644 (file)
--- a/drivers/scsi/bnx2i/bnx2i_init.c
+++ b/drivers/scsi/bnx2i/bnx2i_init.c
@@ -177,11 +177,22 @@ void bnx2i_stop(void *handle)
        struct bnx2i_hba *hba = handle;
 
        /* check if cleanup happened in GOING_DOWN context */
-       clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
        if (!test_and_clear_bit(ADAPTER_STATE_GOING_DOWN,
                                &hba->adapter_state))
                iscsi_host_for_each_session(hba->shost,
                                            bnx2i_drop_session);
+
+       /* Wait for all endpoints to be torn down, Chip will be reset once
+        *  control returns to network driver. So it is required to cleanup and
+        * release all connection resources before returning from this routine.
+        */
+       wait_event_interruptible_timeout(hba->eh_wait,
+                                        (hba->ofld_conns_active == 0),
+                                        hba->hba_shutdown_tmo);
+       /* This flag should be cleared last so that ep_disconnect() gracefully
+        * cleans up connection context
+        */
+       clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 }
 
 /**

diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index f2e9b18..fa68ab3 100644 (file)
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -820,6 +820,11 @@ struct bnx2i_hba *bnx2i_alloc_hba(struct cnic_dev *cnic)
 
        spin_lock_init(&hba->lock);
        mutex_init(&hba->net_dev_lock);
+       init_waitqueue_head(&hba->eh_wait);
+       if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type))
+               hba->hba_shutdown_tmo = 240 * HZ;
+       else    /* 5706/5708/5709 */
+               hba->hba_shutdown_tmo = 30 * HZ;
 
        if (iscsi_host_add(shost, &hba->pcidev->dev))
                goto free_dump_mem;
@@ -1658,8 +1663,8 @@ static struct iscsi_endpoint *bnx2i_ep_connect(struct Scsi_Host *shost,
                 */
                hba = bnx2i_check_route(dst_addr);
 
-       if (!hba) {
-               rc = -ENOMEM;
+       if (!hba || test_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state)) {
+               rc = -EINVAL;
                goto check_busy;
        }
 
@@ -1804,7 +1809,7 @@ static int bnx2i_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
                                               (bnx2i_ep->state ==
                                                EP_STATE_CONNECT_COMPL)),
                                              msecs_to_jiffies(timeout_ms));
-       if (!rc || (bnx2i_ep->state == EP_STATE_OFLD_FAILED))
+       if (bnx2i_ep->state == EP_STATE_OFLD_FAILED)
                rc = -1;
 
        if (rc > 0)
@@ -1957,6 +1962,8 @@ return_bnx2i_ep:
 
        if (!hba->ofld_conns_active)
                bnx2i_unreg_dev_all();
+
+       wake_up_interruptible(&hba->eh_wait);
 }
 
 

diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 4967643..0435d04 100644 (file)
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -188,7 +188,8 @@ MODULE_DEVICE_TABLE(pci,dptids);
 static int adpt_detect(struct scsi_host_template* sht)
 {
        struct pci_dev *pDev = NULL;
-       adpt_hba* pHba;
+       adpt_hba *pHba;
+       adpt_hba *next;
 
        PINFO("Detecting Adaptec I2O RAID controllers...\n");
 
@@ -206,7 +207,8 @@ static int adpt_detect(struct scsi_host_template* sht)
        }
 
        /* In INIT state, Activate IOPs */
-       for (pHba = hba_chain; pHba; pHba = pHba->next) {
+       for (pHba = hba_chain; pHba; pHba = next) {
+               next = pHba->next;
                // Activate does get status , init outbound, and get hrt
                if (adpt_i2o_activate_hba(pHba) < 0) {
                        adpt_i2o_delete_hba(pHba);
@@ -243,7 +245,8 @@ rebuild_sys_tab:
        PDEBUG("HBA's in OPERATIONAL state\n");
 
        printk("dpti: If you have a lot of devices this could take a few minutes.\n");
-       for (pHba = hba_chain; pHba; pHba = pHba->next) {
+       for (pHba = hba_chain; pHba; pHba = next) {
+               next = pHba->next;
                printk(KERN_INFO"%s: Reading the hardware resource table.\n", pHba->name);
                if (adpt_i2o_lct_get(pHba) < 0){
                        adpt_i2o_delete_hba(pHba);
@@ -263,7 +266,8 @@ rebuild_sys_tab:
                adpt_sysfs_class = NULL;
        }
 
-       for (pHba = hba_chain; pHba; pHba = pHba->next) {
+       for (pHba = hba_chain; pHba; pHba = next) {
+               next = pHba->next;
                if (adpt_scsi_host_alloc(pHba, sht) < 0){
                        adpt_i2o_delete_hba(pHba);
                        continue;
@@ -1229,11 +1233,10 @@ static void adpt_i2o_delete_hba(adpt_hba* pHba)
                }
        }
        pci_dev_put(pHba->pDev);
-       kfree(pHba);
-
        if (adpt_sysfs_class)
                device_destroy(adpt_sysfs_class,
                                MKDEV(DPTI_I2O_MAJOR, pHba->unit));
+       kfree(pHba);
 
        if(hba_count <= 0){
                unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER);   

diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index ff5ec5a..88bad0e 100644 (file)
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -323,16 +323,6 @@ static void set_srp_direction(struct scsi_cmnd *cmd,
                srp_cmd->buf_fmt = fmt;
 }
 
-static void unmap_sg_list(int num_entries,
-               struct device *dev,
-               struct srp_direct_buf *md)
-{
-       int i;
-
-       for (i = 0; i < num_entries; ++i)
-               dma_unmap_single(dev, md[i].va, md[i].len, DMA_BIDIRECTIONAL);
-}
-
 /**
  * unmap_cmd_data: - Unmap data pointed in srp_cmd based on the format
  * @cmd:       srp_cmd whose additional_data member will be unmapped
@@ -350,24 +340,9 @@ static void unmap_cmd_data(struct srp_cmd *cmd,
 
        if (out_fmt == SRP_NO_DATA_DESC && in_fmt == SRP_NO_DATA_DESC)
                return;
-       else if (out_fmt == SRP_DATA_DESC_DIRECT ||
-                in_fmt == SRP_DATA_DESC_DIRECT) {
-               struct srp_direct_buf *data =
-                       (struct srp_direct_buf *) cmd->add_data;
-               dma_unmap_single(dev, data->va, data->len, DMA_BIDIRECTIONAL);
-       } else {
-               struct srp_indirect_buf *indirect =
-                       (struct srp_indirect_buf *) cmd->add_data;
-               int num_mapped = indirect->table_desc.len /
-                       sizeof(struct srp_direct_buf);
 
-               if (num_mapped <= MAX_INDIRECT_BUFS) {
-                       unmap_sg_list(num_mapped, dev, &indirect->desc_list[0]);
-                       return;
-               }
-
-               unmap_sg_list(num_mapped, dev, evt_struct->ext_list);
-       }
+       if (evt_struct->cmnd)
+               scsi_dma_unmap(evt_struct->cmnd);
 }
 
 static int map_sg_list(struct scsi_cmnd *cmd, int nseg,

diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 0ee725c..02143af 100644 (file)
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -599,7 +599,7 @@ static void iscsi_sw_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
        set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx);
        write_unlock_bh(&tcp_sw_conn->sock->sk->sk_callback_lock);
 
-       if (sock->sk->sk_sleep && waitqueue_active(sock->sk->sk_sleep)) {
+       if (sock->sk->sk_sleep) {
                sock->sk->sk_err = EIO;
                wake_up_interruptible(sock->sk->sk_sleep);
        }

diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c
index ec37238..d62b3e4 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_bsg.c
+++ b/drivers/scsi/lpfc/lpfc_bsg.c
@@ -433,7 +433,7 @@ lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba,
        dd_data = cmdiocbq->context1;
        /* normal completion and timeout crossed paths, already done */
        if (!dd_data) {
-               spin_unlock_irqrestore(&phba->hbalock, flags);
+               spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
                return;
        }
 
@@ -1196,7 +1196,7 @@ lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba,
        dd_data = cmdiocbq->context1;
        /* normal completion and timeout crossed paths, already done */
        if (!dd_data) {
-               spin_unlock_irqrestore(&phba->hbalock, flags);
+               spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
                return;
        }
 

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 359e9a7..1c7ef55 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -2393,6 +2393,7 @@ qla24xx_bsg_timeout(struct fc_bsg_job *bsg_job)
        return 0;
 
 done:
+       spin_unlock_irqrestore(&ha->hardware_lock, flags);
        if (bsg_job->request->msgcode == FC_BSG_HST_CT)
                kfree(sp->fcport);
        kfree(sp->ctx);

diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c
index d0b7d2f..333580b 100644 (file)
--- a/drivers/scsi/wd7000.c
+++ b/drivers/scsi/wd7000.c
@@ -1587,7 +1587,7 @@ static int wd7000_host_reset(struct scsi_cmnd *SCpnt)
 {
        Adapter *host = (Adapter *) SCpnt->device->host->hostdata;
 
-       spin_unlock_irq(SCpnt->device->host->host_lock);
+       spin_lock_irq(SCpnt->device->host->host_lock);
 
        if (wd7000_adapter_reset(host) < 0) {
                spin_unlock_irq(SCpnt->device->host->host_lock);