mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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SCSI fixes on 20171122
Two basic fixes: one for the sparse problem with the blacklist flags and another for a hang forever in bnx2i. Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABAgAGBQJaFmsjAAoJEAVr7HOZEZN4YNEP/Al9FcWLPhjXBgXLPyubqSHP okVIuXgDa32sNO11z9MOmPIIqHoDEBIupjIAqGaLlwkTOGEEJNsnx55kQnoYVmkU cQ+toq6mn9nX4Sg48J/ymIKHd9d1THdmbK7q0w18yQChO0DUfppZnmfBF7fktiKO nXPEV7kDtNSEfgdaDVGiDexDUFdHc9XReiGeHZOAKKyEZfKc5f/D7rAWEW5q/FXQ gP6EVQJBxAUTLwwu50SUOkyPOfdCDbqPBbWKK4lgtVFIWgFC2RkQwpIcxjInvRYI D5O58p5fnWN5jGjGcqKFzrDBjbQpX42FReyTSz/6pqqmBTjYm9Fj6umcHDc2NBpL BmcVhYXC6Up145bGpTUD0tMI70LFkW08RIAfhFMjL1PUI1B1mxKMQ++PLRFIYprZ rEK0EcYWPwDi3uk/250TKx3YrNS94p6/NlFhAxzIWz5sZgcDNlNGmlyliW0OuQUX BT1nL/+RPYitm/yI9W0M6t26+ENTzmieetdtiBI1iD7KMkLAvmrYjGK6lXtpBawA 4CNAMLlhyZBY4fpV/i+hDJN5Ex90rA04JBgYRWgAQ4s8dZHMGWw86UaXXQj2ngMw D67qEj9jSNo5pMoI3UwKhQXPV4M4gU7wM7wK71m4uY6a8UM4G+DhzO/ZPFcqxhW8 cXziiXtoFdiDNthGjpJU =Geku -----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: "Two basic fixes: one for the sparse problem with the blacklist flags and another for a hang forever in bnx2i" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: Use 'blist_flags_t' for scsi_devinfo flags scsi: bnx2fc: Fix hung task messages when a cleanup response is not received during abort
This commit is contained in:
Linus Torvalds
commit
06c944005b
@ -1084,24 +1084,35 @@ static int bnx2fc_abts_cleanup(struct bnx2fc_cmd *io_req)
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{
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struct bnx2fc_rport *tgt = io_req->tgt;
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int rc = SUCCESS;
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unsigned int time_left;
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io_req->wait_for_comp = 1;
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bnx2fc_initiate_cleanup(io_req);
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spin_unlock_bh(&tgt->tgt_lock);
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wait_for_completion(&io_req->tm_done);
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io_req->wait_for_comp = 0;
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/*
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* release the reference taken in eh_abort to allow the
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* target to re-login after flushing IOs
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* Can't wait forever on cleanup response lest we let the SCSI error
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* handler wait forever
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*/
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time_left = wait_for_completion_timeout(&io_req->tm_done,
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BNX2FC_FW_TIMEOUT);
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io_req->wait_for_comp = 0;
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if (!time_left)
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BNX2FC_IO_DBG(io_req, "%s(): Wait for cleanup timed out.\n",
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__func__);
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/*
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* Release reference held by SCSI command the cleanup completion
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* hits the BNX2FC_CLEANUP case in bnx2fc_process_cq_compl() and
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* thus the SCSI command is not returnedi by bnx2fc_scsi_done().
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*/
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kref_put(&io_req->refcount, bnx2fc_cmd_release);
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spin_lock_bh(&tgt->tgt_lock);
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return rc;
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}
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/**
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* bnx2fc_eh_abort - eh_abort_handler api to abort an outstanding
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* SCSI command
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@ -1118,6 +1129,7 @@ int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
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struct fc_lport *lport;
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struct bnx2fc_rport *tgt;
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int rc;
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unsigned int time_left;
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rc = fc_block_scsi_eh(sc_cmd);
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if (rc)
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@ -1194,6 +1206,11 @@ int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
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if (cancel_delayed_work(&io_req->timeout_work))
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kref_put(&io_req->refcount,
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bnx2fc_cmd_release); /* drop timer hold */
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/*
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* We don't want to hold off the upper layer timer so simply
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* cleanup the command and return that I/O was successfully
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* aborted.
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*/
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rc = bnx2fc_abts_cleanup(io_req);
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/* This only occurs when an task abort was requested while ABTS
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is in progress. Setting the IO_CLEANUP flag will skip the
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@ -1201,7 +1218,7 @@ int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
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was a result from the ABTS request rather than the CLEANUP
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request */
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set_bit(BNX2FC_FLAG_IO_CLEANUP, &io_req->req_flags);
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goto out;
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goto done;
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}
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/* Cancel the current timer running on this io_req */
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@ -1221,7 +1238,11 @@ int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
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}
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spin_unlock_bh(&tgt->tgt_lock);
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wait_for_completion(&io_req->tm_done);
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/* Wait 2 * RA_TOV + 1 to be sure timeout function hasn't fired */
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time_left = wait_for_completion_timeout(&io_req->tm_done,
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(2 * rp->r_a_tov + 1) * HZ);
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if (time_left)
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BNX2FC_IO_DBG(io_req, "Timed out in eh_abort waiting for tm_done");
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spin_lock_bh(&tgt->tgt_lock);
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io_req->wait_for_comp = 0;
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@ -1233,8 +1254,12 @@ int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
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/* Let the scsi-ml try to recover this command */
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printk(KERN_ERR PFX "abort failed, xid = 0x%x\n",
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io_req->xid);
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/*
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* Cleanup firmware residuals before returning control back
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* to SCSI ML.
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*/
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rc = bnx2fc_abts_cleanup(io_req);
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goto out;
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goto done;
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} else {
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/*
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* We come here even when there was a race condition
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@ -1249,7 +1274,6 @@ int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
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done:
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/* release the reference taken in eh_abort */
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kref_put(&io_req->refcount, bnx2fc_cmd_release);
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out:
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spin_unlock_bh(&tgt->tgt_lock);
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return rc;
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}
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@ -22,7 +22,7 @@ struct scsi_dev_info_list {
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struct list_head dev_info_list;
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char vendor[8];
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char model[16];
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unsigned flags;
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blist_flags_t flags;
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unsigned compatible; /* for use with scsi_static_device_list entries */
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};
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@ -35,7 +35,7 @@ struct scsi_dev_info_list_table {
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static const char spaces[] = " "; /* 16 of them */
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static unsigned scsi_default_dev_flags;
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static blist_flags_t scsi_default_dev_flags;
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static LIST_HEAD(scsi_dev_info_list);
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static char scsi_dev_flags[256];
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@ -52,7 +52,7 @@ static struct {
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char *vendor;
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char *model;
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char *revision; /* revision known to be bad, unused */
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unsigned flags;
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blist_flags_t flags;
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} scsi_static_device_list[] __initdata = {
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/*
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* The following devices are known not to tolerate a lun != 0 scan
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@ -335,7 +335,7 @@ static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
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* Returns: 0 OK, -error on failure.
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**/
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static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
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char *strflags, int flags)
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char *strflags, blist_flags_t flags)
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{
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return scsi_dev_info_list_add_keyed(compatible, vendor, model,
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strflags, flags,
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@ -361,7 +361,7 @@ static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
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* Returns: 0 OK, -error on failure.
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**/
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int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
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char *strflags, int flags, int key)
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char *strflags, blist_flags_t flags, int key)
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{
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struct scsi_dev_info_list *devinfo;
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struct scsi_dev_info_list_table *devinfo_table =
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@ -571,9 +571,9 @@ static int scsi_dev_info_list_add_str(char *dev_list)
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* matching flags value, else return the host or global default
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* settings. Called during scan time.
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**/
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int scsi_get_device_flags(struct scsi_device *sdev,
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const unsigned char *vendor,
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const unsigned char *model)
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blist_flags_t scsi_get_device_flags(struct scsi_device *sdev,
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const unsigned char *vendor,
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const unsigned char *model)
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{
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return scsi_get_device_flags_keyed(sdev, vendor, model,
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SCSI_DEVINFO_GLOBAL);
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@ -593,7 +593,7 @@ int scsi_get_device_flags(struct scsi_device *sdev,
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* flags value, else return the host or global default settings.
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* Called during scan time.
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**/
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int scsi_get_device_flags_keyed(struct scsi_device *sdev,
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blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev,
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const unsigned char *vendor,
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const unsigned char *model,
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int key)
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@ -50,15 +50,16 @@ enum {
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SCSI_DEVINFO_SPI,
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};
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extern int scsi_get_device_flags(struct scsi_device *sdev,
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const unsigned char *vendor,
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const unsigned char *model);
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extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
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const unsigned char *vendor,
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const unsigned char *model, int key);
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extern blist_flags_t scsi_get_device_flags(struct scsi_device *sdev,
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const unsigned char *vendor,
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const unsigned char *model);
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extern blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev,
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const unsigned char *vendor,
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const unsigned char *model,
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int key);
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extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
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char *model, char *strflags,
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int flags, int key);
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blist_flags_t flags, int key);
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extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
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extern int scsi_dev_info_add_list(int key, const char *name);
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extern int scsi_dev_info_remove_list(int key);
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@ -566,7 +566,7 @@ EXPORT_SYMBOL(scsi_sanitize_inquiry_string);
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* are copied to the scsi_device any flags value is stored in *@bflags.
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**/
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static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result,
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int result_len, int *bflags)
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int result_len, blist_flags_t *bflags)
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{
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unsigned char scsi_cmd[MAX_COMMAND_SIZE];
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int first_inquiry_len, try_inquiry_len, next_inquiry_len;
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@ -15,6 +15,8 @@ struct scsi_cmnd;
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struct scsi_lun;
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struct scsi_sense_hdr;
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typedef unsigned int __bitwise blist_flags_t;
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struct scsi_mode_data {
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__u32 length;
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__u16 block_descriptor_length;
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@ -141,7 +143,7 @@ struct scsi_device {
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unsigned char current_tag; /* current tag */
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struct scsi_target *sdev_target; /* used only for single_lun */
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unsigned int sdev_bflags; /* black/white flags as also found in
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blist_flags_t sdev_bflags; /* black/white flags as also found in
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* scsi_devinfo.[hc]. For now used only to
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* pass settings from slave_alloc to scsi
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* core. */
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@ -6,55 +6,55 @@
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*/
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/* Only scan LUN 0 */
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#define BLIST_NOLUN ((__force __u32 __bitwise)(1 << 0))
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#define BLIST_NOLUN ((__force blist_flags_t)(1 << 0))
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/* Known to have LUNs, force scanning.
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* DEPRECATED: Use max_luns=N */
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#define BLIST_FORCELUN ((__force __u32 __bitwise)(1 << 1))
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#define BLIST_FORCELUN ((__force blist_flags_t)(1 << 1))
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/* Flag for broken handshaking */
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#define BLIST_BORKEN ((__force __u32 __bitwise)(1 << 2))
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#define BLIST_BORKEN ((__force blist_flags_t)(1 << 2))
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/* unlock by special command */
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#define BLIST_KEY ((__force __u32 __bitwise)(1 << 3))
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#define BLIST_KEY ((__force blist_flags_t)(1 << 3))
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/* Do not use LUNs in parallel */
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#define BLIST_SINGLELUN ((__force __u32 __bitwise)(1 << 4))
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#define BLIST_SINGLELUN ((__force blist_flags_t)(1 << 4))
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/* Buggy Tagged Command Queuing */
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#define BLIST_NOTQ ((__force __u32 __bitwise)(1 << 5))
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#define BLIST_NOTQ ((__force blist_flags_t)(1 << 5))
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/* Non consecutive LUN numbering */
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#define BLIST_SPARSELUN ((__force __u32 __bitwise)(1 << 6))
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#define BLIST_SPARSELUN ((__force blist_flags_t)(1 << 6))
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/* Avoid LUNS >= 5 */
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#define BLIST_MAX5LUN ((__force __u32 __bitwise)(1 << 7))
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#define BLIST_MAX5LUN ((__force blist_flags_t)(1 << 7))
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/* Treat as (removable) CD-ROM */
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#define BLIST_ISROM ((__force __u32 __bitwise)(1 << 8))
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#define BLIST_ISROM ((__force blist_flags_t)(1 << 8))
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/* LUNs past 7 on a SCSI-2 device */
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#define BLIST_LARGELUN ((__force __u32 __bitwise)(1 << 9))
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#define BLIST_LARGELUN ((__force blist_flags_t)(1 << 9))
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/* override additional length field */
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#define BLIST_INQUIRY_36 ((__force __u32 __bitwise)(1 << 10))
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#define BLIST_INQUIRY_36 ((__force blist_flags_t)(1 << 10))
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/* do not do automatic start on add */
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#define BLIST_NOSTARTONADD ((__force __u32 __bitwise)(1 << 12))
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#define BLIST_NOSTARTONADD ((__force blist_flags_t)(1 << 12))
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/* try REPORT_LUNS even for SCSI-2 devs (if HBA supports more than 8 LUNs) */
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#define BLIST_REPORTLUN2 ((__force __u32 __bitwise)(1 << 17))
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#define BLIST_REPORTLUN2 ((__force blist_flags_t)(1 << 17))
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/* don't try REPORT_LUNS scan (SCSI-3 devs) */
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#define BLIST_NOREPORTLUN ((__force __u32 __bitwise)(1 << 18))
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#define BLIST_NOREPORTLUN ((__force blist_flags_t)(1 << 18))
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/* don't use PREVENT-ALLOW commands */
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#define BLIST_NOT_LOCKABLE ((__force __u32 __bitwise)(1 << 19))
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#define BLIST_NOT_LOCKABLE ((__force blist_flags_t)(1 << 19))
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/* device is actually for RAID config */
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#define BLIST_NO_ULD_ATTACH ((__force __u32 __bitwise)(1 << 20))
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#define BLIST_NO_ULD_ATTACH ((__force blist_flags_t)(1 << 20))
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/* select without ATN */
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#define BLIST_SELECT_NO_ATN ((__force __u32 __bitwise)(1 << 21))
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#define BLIST_SELECT_NO_ATN ((__force blist_flags_t)(1 << 21))
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/* retry HARDWARE_ERROR */
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#define BLIST_RETRY_HWERROR ((__force __u32 __bitwise)(1 << 22))
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#define BLIST_RETRY_HWERROR ((__force blist_flags_t)(1 << 22))
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/* maximum 512 sector cdb length */
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#define BLIST_MAX_512 ((__force __u32 __bitwise)(1 << 23))
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#define BLIST_MAX_512 ((__force blist_flags_t)(1 << 23))
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/* Disable T10 PI (DIF) */
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#define BLIST_NO_DIF ((__force __u32 __bitwise)(1 << 25))
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#define BLIST_NO_DIF ((__force blist_flags_t)(1 << 25))
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/* Ignore SBC-3 VPD pages */
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#define BLIST_SKIP_VPD_PAGES ((__force __u32 __bitwise)(1 << 26))
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#define BLIST_SKIP_VPD_PAGES ((__force blist_flags_t)(1 << 26))
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/* Attempt to read VPD pages */
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#define BLIST_TRY_VPD_PAGES ((__force __u32 __bitwise)(1 << 28))
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#define BLIST_TRY_VPD_PAGES ((__force blist_flags_t)(1 << 28))
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/* don't try to issue RSOC */
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#define BLIST_NO_RSOC ((__force __u32 __bitwise)(1 << 29))
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#define BLIST_NO_RSOC ((__force blist_flags_t)(1 << 29))
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/* maximum 1024 sector cdb length */
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#define BLIST_MAX_1024 ((__force __u32 __bitwise)(1 << 30))
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#define BLIST_MAX_1024 ((__force blist_flags_t)(1 << 30))
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/* Use UNMAP limit for WRITE SAME */
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#define BLIST_UNMAP_LIMIT_WS ((__force __u32 __bitwise)(1 << 31))
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#define BLIST_UNMAP_LIMIT_WS ((__force blist_flags_t)(1 << 31))
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#endif
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