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SCSI fixes on 20240216
Three fixes: the two fnic ones are a revert and a refix, which is why the diffstat is a bit big. The target one also extracts a function to add a check for configuration and so looks bigger than it is. Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCZc9vhyYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishai6AQDMzhWs 7uId14w0TdPcodG+2PpKs+VgKH6kwdl39zCQ/AEAprIATmraIoPDZlWYBY0XjVMx +x40yPEo856XvRQ6NmY= =ORQ9 -----END PGP SIGNATURE----- Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Three fixes: the two fnic ones are a revert and a refix, which is why the diffstat is a bit big. The target one also extracts a function to add a check for configuration and so looks bigger than it is" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: fnic: Move fnic_fnic_flush_tx() to a work queue scsi: Revert "scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock" scsi: target: Fix unmap setup during configuration
This commit is contained in:
commit
c1ca10ceff
@ -319,17 +319,16 @@ static void fcoe_ctlr_announce(struct fcoe_ctlr *fip)
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{
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struct fcoe_fcf *sel;
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struct fcoe_fcf *fcf;
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unsigned long flags;
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mutex_lock(&fip->ctlr_mutex);
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spin_lock_irqsave(&fip->ctlr_lock, flags);
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spin_lock_bh(&fip->ctlr_lock);
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kfree_skb(fip->flogi_req);
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fip->flogi_req = NULL;
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list_for_each_entry(fcf, &fip->fcfs, list)
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fcf->flogi_sent = 0;
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spin_unlock_irqrestore(&fip->ctlr_lock, flags);
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spin_unlock_bh(&fip->ctlr_lock);
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sel = fip->sel_fcf;
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if (sel && ether_addr_equal(sel->fcf_mac, fip->dest_addr))
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@ -700,7 +699,6 @@ int fcoe_ctlr_els_send(struct fcoe_ctlr *fip, struct fc_lport *lport,
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{
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struct fc_frame *fp;
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struct fc_frame_header *fh;
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unsigned long flags;
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u16 old_xid;
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u8 op;
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u8 mac[ETH_ALEN];
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@ -734,11 +732,11 @@ int fcoe_ctlr_els_send(struct fcoe_ctlr *fip, struct fc_lport *lport,
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op = FIP_DT_FLOGI;
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if (fip->mode == FIP_MODE_VN2VN)
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break;
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spin_lock_irqsave(&fip->ctlr_lock, flags);
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spin_lock_bh(&fip->ctlr_lock);
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kfree_skb(fip->flogi_req);
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fip->flogi_req = skb;
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fip->flogi_req_send = 1;
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spin_unlock_irqrestore(&fip->ctlr_lock, flags);
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spin_unlock_bh(&fip->ctlr_lock);
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schedule_work(&fip->timer_work);
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return -EINPROGRESS;
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case ELS_FDISC:
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@ -1707,11 +1705,10 @@ static int fcoe_ctlr_flogi_send_locked(struct fcoe_ctlr *fip)
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static int fcoe_ctlr_flogi_retry(struct fcoe_ctlr *fip)
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{
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struct fcoe_fcf *fcf;
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unsigned long flags;
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int error;
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mutex_lock(&fip->ctlr_mutex);
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spin_lock_irqsave(&fip->ctlr_lock, flags);
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spin_lock_bh(&fip->ctlr_lock);
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LIBFCOE_FIP_DBG(fip, "re-sending FLOGI - reselect\n");
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fcf = fcoe_ctlr_select(fip);
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if (!fcf || fcf->flogi_sent) {
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@ -1722,7 +1719,7 @@ static int fcoe_ctlr_flogi_retry(struct fcoe_ctlr *fip)
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fcoe_ctlr_solicit(fip, NULL);
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error = fcoe_ctlr_flogi_send_locked(fip);
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}
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spin_unlock_irqrestore(&fip->ctlr_lock, flags);
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spin_unlock_bh(&fip->ctlr_lock);
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mutex_unlock(&fip->ctlr_mutex);
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return error;
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}
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@ -1739,9 +1736,8 @@ static int fcoe_ctlr_flogi_retry(struct fcoe_ctlr *fip)
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static void fcoe_ctlr_flogi_send(struct fcoe_ctlr *fip)
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{
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struct fcoe_fcf *fcf;
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unsigned long flags;
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spin_lock_irqsave(&fip->ctlr_lock, flags);
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spin_lock_bh(&fip->ctlr_lock);
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fcf = fip->sel_fcf;
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if (!fcf || !fip->flogi_req_send)
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goto unlock;
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@ -1768,7 +1764,7 @@ static void fcoe_ctlr_flogi_send(struct fcoe_ctlr *fip)
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} else /* XXX */
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LIBFCOE_FIP_DBG(fip, "No FCF selected - defer send\n");
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unlock:
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spin_unlock_irqrestore(&fip->ctlr_lock, flags);
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spin_unlock_bh(&fip->ctlr_lock);
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}
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/**
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@ -305,6 +305,7 @@ struct fnic {
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unsigned int copy_wq_base;
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struct work_struct link_work;
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struct work_struct frame_work;
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struct work_struct flush_work;
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struct sk_buff_head frame_queue;
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struct sk_buff_head tx_queue;
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@ -363,7 +364,7 @@ void fnic_handle_event(struct work_struct *work);
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int fnic_rq_cmpl_handler(struct fnic *fnic, int);
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int fnic_alloc_rq_frame(struct vnic_rq *rq);
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void fnic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf);
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void fnic_flush_tx(struct fnic *);
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void fnic_flush_tx(struct work_struct *work);
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void fnic_eth_send(struct fcoe_ctlr *, struct sk_buff *skb);
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void fnic_set_port_id(struct fc_lport *, u32, struct fc_frame *);
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void fnic_update_mac(struct fc_lport *, u8 *new);
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@ -1182,7 +1182,7 @@ int fnic_send(struct fc_lport *lp, struct fc_frame *fp)
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/**
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* fnic_flush_tx() - send queued frames.
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* @fnic: fnic device
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* @work: pointer to work element
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*
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* Send frames that were waiting to go out in FC or Ethernet mode.
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* Whenever changing modes we purge queued frames, so these frames should
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@ -1190,8 +1190,9 @@ int fnic_send(struct fc_lport *lp, struct fc_frame *fp)
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*
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* Called without fnic_lock held.
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*/
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void fnic_flush_tx(struct fnic *fnic)
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void fnic_flush_tx(struct work_struct *work)
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{
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struct fnic *fnic = container_of(work, struct fnic, flush_work);
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struct sk_buff *skb;
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struct fc_frame *fp;
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@ -830,6 +830,7 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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spin_lock_init(&fnic->vlans_lock);
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INIT_WORK(&fnic->fip_frame_work, fnic_handle_fip_frame);
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INIT_WORK(&fnic->event_work, fnic_handle_event);
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INIT_WORK(&fnic->flush_work, fnic_flush_tx);
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skb_queue_head_init(&fnic->fip_frame_queue);
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INIT_LIST_HEAD(&fnic->evlist);
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INIT_LIST_HEAD(&fnic->vlans);
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@ -680,7 +680,7 @@ static int fnic_fcpio_fw_reset_cmpl_handler(struct fnic *fnic,
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spin_unlock_irqrestore(&fnic->fnic_lock, flags);
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fnic_flush_tx(fnic);
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queue_work(fnic_event_queue, &fnic->flush_work);
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reset_cmpl_handler_end:
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fnic_clear_state_flags(fnic, FNIC_FLAGS_FWRESET);
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@ -736,7 +736,7 @@ static int fnic_fcpio_flogi_reg_cmpl_handler(struct fnic *fnic,
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}
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spin_unlock_irqrestore(&fnic->fnic_lock, flags);
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fnic_flush_tx(fnic);
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queue_work(fnic_event_queue, &fnic->flush_work);
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queue_work(fnic_event_queue, &fnic->frame_work);
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} else {
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spin_unlock_irqrestore(&fnic->fnic_lock, flags);
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@ -759,6 +759,29 @@ static ssize_t emulate_tas_store(struct config_item *item,
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return count;
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}
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static int target_try_configure_unmap(struct se_device *dev,
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const char *config_opt)
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{
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if (!dev->transport->configure_unmap) {
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pr_err("Generic Block Discard not supported\n");
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return -ENOSYS;
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}
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if (!target_dev_configured(dev)) {
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pr_err("Generic Block Discard setup for %s requires device to be configured\n",
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config_opt);
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return -ENODEV;
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}
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if (!dev->transport->configure_unmap(dev)) {
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pr_err("Generic Block Discard setup for %s failed\n",
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config_opt);
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return -ENOSYS;
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}
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return 0;
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}
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static ssize_t emulate_tpu_store(struct config_item *item,
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const char *page, size_t count)
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{
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@ -776,11 +799,9 @@ static ssize_t emulate_tpu_store(struct config_item *item,
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* Discard supported is detected iblock_create_virtdevice().
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*/
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if (flag && !da->max_unmap_block_desc_count) {
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if (!dev->transport->configure_unmap ||
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!dev->transport->configure_unmap(dev)) {
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pr_err("Generic Block Discard not supported\n");
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return -ENOSYS;
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}
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ret = target_try_configure_unmap(dev, "emulate_tpu");
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if (ret)
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return ret;
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}
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da->emulate_tpu = flag;
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@ -806,11 +827,9 @@ static ssize_t emulate_tpws_store(struct config_item *item,
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* Discard supported is detected iblock_create_virtdevice().
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*/
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if (flag && !da->max_unmap_block_desc_count) {
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if (!dev->transport->configure_unmap ||
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!dev->transport->configure_unmap(dev)) {
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pr_err("Generic Block Discard not supported\n");
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return -ENOSYS;
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}
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ret = target_try_configure_unmap(dev, "emulate_tpws");
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if (ret)
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return ret;
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}
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da->emulate_tpws = flag;
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@ -1022,12 +1041,9 @@ static ssize_t unmap_zeroes_data_store(struct config_item *item,
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* Discard supported is detected iblock_configure_device().
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*/
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if (flag && !da->max_unmap_block_desc_count) {
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if (!dev->transport->configure_unmap ||
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!dev->transport->configure_unmap(dev)) {
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pr_err("dev[%p]: Thin Provisioning LBPRZ will not be set because max_unmap_block_desc_count is zero\n",
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da->da_dev);
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return -ENOSYS;
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}
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ret = target_try_configure_unmap(dev, "unmap_zeroes_data");
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if (ret)
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return ret;
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}
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da->unmap_zeroes_data = flag;
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pr_debug("dev[%p]: SE Device Thin Provisioning LBPRZ bit: %d\n",
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