diff options
Diffstat (limited to 'drivers/message/fusion/mptscsih.c')
| -rw-r--r-- | drivers/message/fusion/mptscsih.c | 212 |
1 files changed, 135 insertions, 77 deletions
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index b1f68caf9a1..dc5e996a894 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -80,6 +80,10 @@ MODULE_VERSION(my_VERSION); /* * Other private/forward protos... */ +static struct scsi_cmnd * mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i); +static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i); +static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd); +static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd); int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq); int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); @@ -90,7 +94,6 @@ static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx); static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply); static int mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd); static int mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout ); -static int SCPNT_TO_LOOKUP_IDX(struct scsi_cmnd *sc); static int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout); @@ -658,12 +661,11 @@ mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr) printk (MYIOC_s_ERR_FMT "req_idx=%x req_idx_MR=%x mf=%p mr=%p sc=%p\n", ioc->name, req_idx, req_idx_MR, mf, mr, - hd->ScsiLookup[req_idx_MR]); + mptscsih_get_scsi_lookup(ioc, req_idx_MR)); return 0; } - sc = hd->ScsiLookup[req_idx]; - hd->ScsiLookup[req_idx] = NULL; + sc = mptscsih_getclear_scsi_lookup(ioc, req_idx); if (sc == NULL) { MPIHeader_t *hdr = (MPIHeader_t *)mf; @@ -969,48 +971,32 @@ static void mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd) { MPT_ADAPTER *ioc = hd->ioc; - struct scsi_cmnd *SCpnt; - MPT_FRAME_HDR *mf; + struct scsi_cmnd *sc; + SCSIIORequest_t *mf = NULL; int ii; - int max = ioc->req_depth; - - dprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": flush_ScsiLookup called\n", ioc->name)); - for (ii= 0; ii < max; ii++) { - if ((SCpnt = hd->ScsiLookup[ii]) != NULL) { - - /* Command found. - */ - - /* Null ScsiLookup index - */ - hd->ScsiLookup[ii] = NULL; + int channel, id; - mf = MPT_INDEX_2_MFPTR(ioc, ii); - dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": flush: ScsiDone (mf=%p,sc=%p)\n", - ioc->name, mf, SCpnt)); - - /* Free Chain buffers */ - mptscsih_freeChainBuffers(ioc, ii); - - /* Free Message frames */ - mpt_free_msg_frame(ioc, mf); - - if ((unsigned char *)mf != SCpnt->host_scribble) - continue; - - /* Set status, free OS resources (SG DMA buffers) - * Do OS callback - */ - scsi_dma_unmap(SCpnt); - - SCpnt->result = DID_RESET << 16; - SCpnt->host_scribble = NULL; - - SCpnt->scsi_done(SCpnt); /* Issue the command callback */ - } + for (ii= 0; ii < ioc->req_depth; ii++) { + sc = mptscsih_getclear_scsi_lookup(ioc, ii); + if (!sc) + continue; + mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii); + if (!mf) + continue; + channel = mf->Bus; + id = mf->TargetID; + mptscsih_freeChainBuffers(ioc, ii); + mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); + if ((unsigned char *)mf != sc->host_scribble) + continue; + scsi_dma_unmap(sc); + sc->result = DID_RESET << 16; + sc->host_scribble = NULL; + sdev_printk(MYIOC_s_INFO_FMT, sc->device, + "completing cmds: fw_channel %d, fw_id %d, sc=%p," + " mf = %p, idx=%x\n", ioc->name, channel, id, sc, mf, ii); + sc->scsi_done(sc); } - - return; } /* @@ -1032,16 +1018,14 @@ mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice) { SCSIIORequest_t *mf = NULL; int ii; - int max = hd->ioc->req_depth; struct scsi_cmnd *sc; struct scsi_lun lun; MPT_ADAPTER *ioc = hd->ioc; + unsigned long flags; - dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": search_running channel %d id %d lun %d max %d\n", - ioc->name, vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun, max)); - - for (ii=0; ii < max; ii++) { - if ((sc = hd->ScsiLookup[ii]) != NULL) { + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + for (ii = 0; ii < ioc->req_depth; ii++) { + if ((sc = ioc->ScsiLookup[ii]) != NULL) { mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii); if (mf == NULL) @@ -1060,13 +1044,12 @@ mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice) memcmp(lun.scsi_lun, mf->LUN, 8)) continue; - /* Cleanup - */ - hd->ScsiLookup[ii] = NULL; - mptscsih_freeChainBuffers(ioc, ii); - mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); if ((unsigned char *)mf != sc->host_scribble) continue; + ioc->ScsiLookup[ii] = NULL; + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + mptscsih_freeChainBuffers(ioc, ii); + mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); scsi_dma_unmap(sc); sc->host_scribble = NULL; sc->result = DID_NO_CONNECT << 16; @@ -1074,8 +1057,10 @@ mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice) "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name, vdevice->vtarget->channel, vdevice->vtarget->id, sc, mf, ii); sc->scsi_done(sc); + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); } } + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); return; } @@ -1143,10 +1128,10 @@ mptscsih_remove(struct pci_dev *pdev) sz1=0; - if (hd->ScsiLookup != NULL) { + if (ioc->ScsiLookup != NULL) { sz1 = ioc->req_depth * sizeof(void *); - kfree(hd->ScsiLookup); - hd->ScsiLookup = NULL; + kfree(ioc->ScsiLookup); + ioc->ScsiLookup = NULL; } dprintk(ioc, printk(MYIOC_s_DEBUG_FMT @@ -1463,7 +1448,7 @@ mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) } SCpnt->host_scribble = (unsigned char *)mf; - hd->ScsiLookup[my_idx] = SCpnt; + mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt); mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n", @@ -1472,7 +1457,6 @@ mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) return 0; fail: - hd->ScsiLookup[my_idx] = NULL; mptscsih_freeChainBuffers(ioc, my_idx); mpt_free_msg_frame(ioc, mf); return SCSI_MLQUEUE_HOST_BUSY; @@ -1834,7 +1818,7 @@ mptscsih_abort(struct scsi_cmnd * SCpnt) /* Find this command */ - if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(SCpnt)) < 0) { + if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) { /* Cmd not found in ScsiLookup. * Do OS callback. */ @@ -1870,7 +1854,7 @@ mptscsih_abort(struct scsi_cmnd * SCpnt) vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun, ctx2abort, mptscsih_get_tm_timeout(ioc)); - if (SCPNT_TO_LOOKUP_IDX(SCpnt) == scpnt_idx && + if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx && SCpnt->serial_number == sn) retval = FAILED; @@ -2551,21 +2535,101 @@ mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR } } -static int -SCPNT_TO_LOOKUP_IDX(struct scsi_cmnd *sc) +/** + * mptscsih_get_scsi_lookup + * + * retrieves scmd entry from ScsiLookup[] array list + * + * @ioc: Pointer to MPT_ADAPTER structure + * @i: index into the array + * + * Returns the scsi_cmd pointer + * + **/ +static struct scsi_cmnd * +mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i) { - MPT_SCSI_HOST *hd; - int i; + unsigned long flags; + struct scsi_cmnd *scmd; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + scmd = ioc->ScsiLookup[i]; + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + + return scmd; +} + +/** + * mptscsih_getclear_scsi_lookup + * + * retrieves and clears scmd entry from ScsiLookup[] array list + * + * @ioc: Pointer to MPT_ADAPTER structure + * @i: index into the array + * + * Returns the scsi_cmd pointer + * + **/ +static struct scsi_cmnd * +mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i) +{ + unsigned long flags; + struct scsi_cmnd *scmd; + + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + scmd = ioc->ScsiLookup[i]; + ioc->ScsiLookup[i] = NULL; + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + + return scmd; +} + +/** + * mptscsih_set_scsi_lookup + * + * writes a scmd entry into the ScsiLookup[] array list + * + * @ioc: Pointer to MPT_ADAPTER structure + * @i: index into the array + * @scmd: scsi_cmnd pointer + * + **/ +static void +mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd) +{ + unsigned long flags; - hd = shost_priv(sc->device->host); + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + ioc->ScsiLookup[i] = scmd; + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); +} + +/** + * SCPNT_TO_LOOKUP_IDX + * + * search's for a given scmd in the ScsiLookup[] array list + * + * @ioc: Pointer to MPT_ADAPTER structure + * @scmd: scsi_cmnd pointer + * + **/ +static int +SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc) +{ + unsigned long flags; + int i, index=-1; - for (i = 0; i < hd->ioc->req_depth; i++) { - if (hd->ScsiLookup[i] == sc) { - return i; + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + for (i = 0; i < ioc->req_depth; i++) { + if (ioc->ScsiLookup[i] == sc) { + index = i; + goto out; } } - return -1; + out: + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); + return index; } /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ @@ -2574,7 +2638,6 @@ mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) { MPT_SCSI_HOST *hd; unsigned long flags; - int ii; dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": IOC %s_reset routed to SCSI host driver!\n", @@ -2630,11 +2693,6 @@ mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) * Init all control structures. */ - /* ScsiLookup initialization - */ - for (ii=0; ii < ioc->req_depth; ii++) - hd->ScsiLookup[ii] = NULL; - /* 2. Chain Buffer initialization */ @@ -2772,7 +2830,7 @@ mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr) del_timer(&hd->timer); req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); - hd->ScsiLookup[req_idx] = NULL; + mptscsih_set_scsi_lookup(ioc, req_idx, NULL); pReq = (SCSIIORequest_t *) mf; if (mf != hd->cmdPtr) { |