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SCSI fixes on 20130626

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This is a set of seven bug fixes.  Several fcoe fixes for locking problems,
 initiator issues and a VLAN API change, all of which could eventually lead to
 data corruption, one fix for a qla2xxx locking problem which could lead to
 multiple completions of the same request (and subsequent data corruption) and
 a use after free in the ipr driver.  Plus one minor MAINTAINERS file update
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of seven bug fixes.  Several fcoe fixes for locking
  problems, initiator issues and a VLAN API change, all of which could
  eventually lead to data corruption, one fix for a qla2xxx locking
  problem which could lead to multiple completions of the same request
  (and subsequent data corruption) and a use after free in the ipr
  driver.  Plus one minor MAINTAINERS file update"

(only six bugfixes in this pull, since I had already pulled the fcoe API
fix directly from Robert Love)

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] ipr: Avoid target_destroy accessing memory after it was freed
  [SCSI] qla2xxx: Fix for locking issue between driver ISR and mailbox routines
  MAINTAINERS: Fix fcoe mailing list
  libfc: extend ex_lock to protect all of fc_seq_send
  libfc: Correct check for initiator role
  libfcoe: Fix Conflicting FCFs issue in the fabric
This commit is contained in:
Linus Torvalds 2013-06-30 15:06:25 -07:00
commit 4b483802fd
11 changed files with 61 additions and 93 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
MAINTAINERS
View File

@ -3220,7 +3220,7 @@ F: lib/fault-inject.c
FCOE SUBSYSTEM (libfc, libfcoe, fcoe) FCOE SUBSYSTEM (libfc, libfcoe, fcoe)
M: Robert Love <robert.w.love@intel.com> M: Robert Love <robert.w.love@intel.com>
L: devel@open-fcoe.org L: fcoe-devel@open-fcoe.org
W: www.Open-FCoE.org W: www.Open-FCoE.org
S: Supported S: Supported
F: drivers/scsi/libfc/ F: drivers/scsi/libfc/

15
drivers/scsi/fcoe/fcoe_ctlr.c
View File

@ -1548,9 +1548,6 @@ static struct fcoe_fcf *fcoe_ctlr_select(struct fcoe_ctlr *fip)
{ {
struct fcoe_fcf *fcf; struct fcoe_fcf *fcf;
struct fcoe_fcf *best = fip->sel_fcf; struct fcoe_fcf *best = fip->sel_fcf;
struct fcoe_fcf *first;
first = list_first_entry(&fip->fcfs, struct fcoe_fcf, list);
list_for_each_entry(fcf, &fip->fcfs, list) { list_for_each_entry(fcf, &fip->fcfs, list) {
LIBFCOE_FIP_DBG(fip, "consider FCF fab %16.16llx " LIBFCOE_FIP_DBG(fip, "consider FCF fab %16.16llx "
@ -1568,17 +1565,15 @@ static struct fcoe_fcf *fcoe_ctlr_select(struct fcoe_ctlr *fip)
"" : "un"); "" : "un");
continue; continue;
} }
if (fcf->fabric_name != first->fabric_name || if (!best || fcf->pri < best->pri || best->flogi_sent)
fcf->vfid != first->vfid || best = fcf;
fcf->fc_map != first->fc_map) { if (fcf->fabric_name != best->fabric_name ||
fcf->vfid != best->vfid ||
fcf->fc_map != best->fc_map) {
LIBFCOE_FIP_DBG(fip, "Conflicting fabric, VFID, " LIBFCOE_FIP_DBG(fip, "Conflicting fabric, VFID, "
"or FC-MAP\n"); "or FC-MAP\n");
return NULL; return NULL;
} }
if (fcf->flogi_sent)
continue;
if (!best || fcf->pri < best->pri || best->flogi_sent)
best = fcf;
} }
fip->sel_fcf = best; fip->sel_fcf = best;
if (best) { if (best) {

16
drivers/scsi/ipr.c
View File

@ -8980,19 +8980,6 @@ static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
if (!ioa_cfg->res_entries) if (!ioa_cfg->res_entries)
goto out; goto out;
if (ioa_cfg->sis64) {
ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
if (!ioa_cfg->target_ids || !ioa_cfg->array_ids
|| !ioa_cfg->vset_ids)
goto out_free_res_entries;
}
for (i = 0; i < ioa_cfg->max_devs_supported; i++) { for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
@ -9089,9 +9076,6 @@ out_free_vpd_cbs:
ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
out_free_res_entries: out_free_res_entries:
kfree(ioa_cfg->res_entries); kfree(ioa_cfg->res_entries);
kfree(ioa_cfg->target_ids);
kfree(ioa_cfg->array_ids);
kfree(ioa_cfg->vset_ids);
goto out; goto out;
} }

6
drivers/scsi/ipr.h
View File

@ -1440,9 +1440,9 @@ struct ipr_ioa_cfg {
/* /*
* Bitmaps for SIS64 generated target values * Bitmaps for SIS64 generated target values
*/ */
unsigned long *target_ids; unsigned long target_ids[BITS_TO_LONGS(IPR_MAX_SIS64_DEVS)];
unsigned long *array_ids; unsigned long array_ids[BITS_TO_LONGS(IPR_MAX_SIS64_DEVS)];
unsigned long *vset_ids; unsigned long vset_ids[BITS_TO_LONGS(IPR_MAX_SIS64_DEVS)];
u16 type; /* CCIN of the card */ u16 type; /* CCIN of the card */

37
drivers/scsi/libfc/fc_exch.c
View File

@ -463,13 +463,7 @@ static void fc_exch_delete(struct fc_exch *ep)
fc_exch_release(ep); /* drop hold for exch in mp */ fc_exch_release(ep); /* drop hold for exch in mp */
} }
/** static int fc_seq_send_locked(struct fc_lport *lport, struct fc_seq *sp,
* fc_seq_send() - Send a frame using existing sequence/exchange pair
* @lport: The local port that the exchange will be sent on
* @sp: The sequence to be sent
* @fp: The frame to be sent on the exchange
*/
static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp,
struct fc_frame *fp) struct fc_frame *fp)
{ {
struct fc_exch *ep; struct fc_exch *ep;
@ -479,7 +473,7 @@ static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp,
u8 fh_type = fh->fh_type; u8 fh_type = fh->fh_type;
ep = fc_seq_exch(sp); ep = fc_seq_exch(sp);
WARN_ON((ep->esb_stat & ESB_ST_SEQ_INIT) != ESB_ST_SEQ_INIT); WARN_ON(!(ep->esb_stat & ESB_ST_SEQ_INIT));
f_ctl = ntoh24(fh->fh_f_ctl); f_ctl = ntoh24(fh->fh_f_ctl);
fc_exch_setup_hdr(ep, fp, f_ctl); fc_exch_setup_hdr(ep, fp, f_ctl);
@ -502,17 +496,34 @@ static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp,
error = lport->tt.frame_send(lport, fp); error = lport->tt.frame_send(lport, fp);
if (fh_type == FC_TYPE_BLS) if (fh_type == FC_TYPE_BLS)
return error; goto out;
/* /*
* Update the exchange and sequence flags, * Update the exchange and sequence flags,
* assuming all frames for the sequence have been sent. * assuming all frames for the sequence have been sent.
* We can only be called to send once for each sequence. * We can only be called to send once for each sequence.
*/ */
spin_lock_bh(&ep->ex_lock);
ep->f_ctl = f_ctl & ~FC_FC_FIRST_SEQ; /* not first seq */ ep->f_ctl = f_ctl & ~FC_FC_FIRST_SEQ; /* not first seq */
if (f_ctl & FC_FC_SEQ_INIT) if (f_ctl & FC_FC_SEQ_INIT)
ep->esb_stat &= ~ESB_ST_SEQ_INIT; ep->esb_stat &= ~ESB_ST_SEQ_INIT;
out:
return error;
}
/**
* fc_seq_send() - Send a frame using existing sequence/exchange pair
* @lport: The local port that the exchange will be sent on
* @sp: The sequence to be sent
* @fp: The frame to be sent on the exchange
*/
static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp,
struct fc_frame *fp)
{
struct fc_exch *ep;
int error;
ep = fc_seq_exch(sp);
spin_lock_bh(&ep->ex_lock);
error = fc_seq_send_locked(lport, sp, fp);
spin_unlock_bh(&ep->ex_lock); spin_unlock_bh(&ep->ex_lock);
return error; return error;
} }
@ -629,7 +640,7 @@ static int fc_exch_abort_locked(struct fc_exch *ep,
if (fp) { if (fp) {
fc_fill_fc_hdr(fp, FC_RCTL_BA_ABTS, ep->did, ep->sid, fc_fill_fc_hdr(fp, FC_RCTL_BA_ABTS, ep->did, ep->sid,
FC_TYPE_BLS, FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0); FC_TYPE_BLS, FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
error = fc_seq_send(ep->lp, sp, fp); error = fc_seq_send_locked(ep->lp, sp, fp);
} else } else
error = -ENOBUFS; error = -ENOBUFS;
return error; return error;
@ -1132,7 +1143,7 @@ static void fc_seq_send_last(struct fc_seq *sp, struct fc_frame *fp,
f_ctl = FC_FC_LAST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT; f_ctl = FC_FC_LAST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT;
f_ctl |= ep->f_ctl; f_ctl |= ep->f_ctl;
fc_fill_fc_hdr(fp, rctl, ep->did, ep->sid, fh_type, f_ctl, 0); fc_fill_fc_hdr(fp, rctl, ep->did, ep->sid, fh_type, f_ctl, 0);
fc_seq_send(ep->lp, sp, fp); fc_seq_send_locked(ep->lp, sp, fp);
} }
/** /**
@ -1307,8 +1318,8 @@ static void fc_exch_recv_abts(struct fc_exch *ep, struct fc_frame *rx_fp)
ap->ba_low_seq_cnt = htons(sp->cnt); ap->ba_low_seq_cnt = htons(sp->cnt);
} }
sp = fc_seq_start_next_locked(sp); sp = fc_seq_start_next_locked(sp);
spin_unlock_bh(&ep->ex_lock);
fc_seq_send_last(sp, fp, FC_RCTL_BA_ACC, FC_TYPE_BLS); fc_seq_send_last(sp, fp, FC_RCTL_BA_ACC, FC_TYPE_BLS);
spin_unlock_bh(&ep->ex_lock);
fc_frame_free(rx_fp); fc_frame_free(rx_fp);
return; return;

2
drivers/scsi/libfc/fc_rport.c
View File

@ -1962,7 +1962,7 @@ static int fc_rport_fcp_prli(struct fc_rport_priv *rdata, u32 spp_len,
rdata->flags |= FC_RP_FLAGS_RETRY; rdata->flags |= FC_RP_FLAGS_RETRY;
rdata->supported_classes = FC_COS_CLASS3; rdata->supported_classes = FC_COS_CLASS3;
if (!(lport->service_params & FC_RPORT_ROLE_FCP_INITIATOR)) if (!(lport->service_params & FCP_SPPF_INIT_FCN))
return 0; return 0;
spp->spp_flags |= rspp->spp_flags & FC_SPP_EST_IMG_PAIR; spp->spp_flags |= rspp->spp_flags & FC_SPP_EST_IMG_PAIR;

11
drivers/scsi/qla2xxx/qla_inline.h
View File

@ -278,3 +278,14 @@ qla2x00_do_host_ramp_up(scsi_qla_host_t *vha)
set_bit(HOST_RAMP_UP_QUEUE_DEPTH, &vha->dpc_flags); set_bit(HOST_RAMP_UP_QUEUE_DEPTH, &vha->dpc_flags);
} }
static inline void
qla2x00_handle_mbx_completion(struct qla_hw_data *ha, int status)
{
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp);
}
}

27
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -104,14 +104,9 @@ qla2100_intr_handler(int irq, void *dev_id)
RD_REG_WORD(&reg->hccr); RD_REG_WORD(&reg->hccr);
} }
} }
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags); spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp);
}
return (IRQ_HANDLED); return (IRQ_HANDLED);
} }
@ -221,14 +216,9 @@ qla2300_intr_handler(int irq, void *dev_id)
WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT); WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
RD_REG_WORD_RELAXED(&reg->hccr); RD_REG_WORD_RELAXED(&reg->hccr);
} }
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags); spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp);
}
return (IRQ_HANDLED); return (IRQ_HANDLED);
} }
@ -2613,14 +2603,9 @@ qla24xx_intr_handler(int irq, void *dev_id)
if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1))) if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
ndelay(3500); ndelay(3500);
} }
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags); spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp);
}
return IRQ_HANDLED; return IRQ_HANDLED;
} }
@ -2763,13 +2748,9 @@ qla24xx_msix_default(int irq, void *dev_id)
} }
WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT); WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
} while (0); } while (0);
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags); spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp);
}
return IRQ_HANDLED; return IRQ_HANDLED;
} }

2
drivers/scsi/qla2xxx/qla_mbx.c
View File

@ -179,8 +179,6 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
wait_for_completion_timeout(&ha->mbx_intr_comp, mcp->tov * HZ); wait_for_completion_timeout(&ha->mbx_intr_comp, mcp->tov * HZ);
clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
} else { } else {
ql_dbg(ql_dbg_mbx, vha, 0x1011, ql_dbg(ql_dbg_mbx, vha, 0x1011,
"Cmd=%x Polling Mode.\n", command); "Cmd=%x Polling Mode.\n", command);

10
drivers/scsi/qla2xxx/qla_mr.c
View File

@ -148,9 +148,6 @@ qlafx00_mailbox_command(scsi_qla_host_t *vha, struct mbx_cmd_32 *mcp)
spin_unlock_irqrestore(&ha->hardware_lock, flags); spin_unlock_irqrestore(&ha->hardware_lock, flags);
wait_for_completion_timeout(&ha->mbx_intr_comp, mcp->tov * HZ); wait_for_completion_timeout(&ha->mbx_intr_comp, mcp->tov * HZ);
clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
} else { } else {
ql_dbg(ql_dbg_mbx, vha, 0x112c, ql_dbg(ql_dbg_mbx, vha, 0x112c,
"Cmd=%x Polling Mode.\n", command); "Cmd=%x Polling Mode.\n", command);
@ -2934,13 +2931,10 @@ qlafx00_intr_handler(int irq, void *dev_id)
QLAFX00_CLR_INTR_REG(ha, clr_intr); QLAFX00_CLR_INTR_REG(ha, clr_intr);
QLAFX00_RD_INTR_REG(ha); QLAFX00_RD_INTR_REG(ha);
} }
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags); spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp);
}
return IRQ_HANDLED; return IRQ_HANDLED;
} }

26
drivers/scsi/qla2xxx/qla_nx.c
View File

@ -2074,9 +2074,6 @@ qla82xx_intr_handler(int irq, void *dev_id)
} }
WRT_REG_DWORD(&reg->host_int, 0); WRT_REG_DWORD(&reg->host_int, 0);
} }
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (!ha->flags.msi_enabled)
qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
#ifdef QL_DEBUG_LEVEL_17 #ifdef QL_DEBUG_LEVEL_17
if (!irq && ha->flags.eeh_busy) if (!irq && ha->flags.eeh_busy)
@ -2085,11 +2082,12 @@ qla82xx_intr_handler(int irq, void *dev_id)
status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat); status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
#endif #endif
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && qla2x00_handle_mbx_completion(ha, status);
(status & MBX_INTERRUPT) && ha->flags.mbox_int) { spin_unlock_irqrestore(&ha->hardware_lock, flags);
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp); if (!ha->flags.msi_enabled)
} qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
return IRQ_HANDLED; return IRQ_HANDLED;
} }
@ -2149,8 +2147,6 @@ qla82xx_msix_default(int irq, void *dev_id)
WRT_REG_DWORD(&reg->host_int, 0); WRT_REG_DWORD(&reg->host_int, 0);
} while (0); } while (0);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
#ifdef QL_DEBUG_LEVEL_17 #ifdef QL_DEBUG_LEVEL_17
if (!irq && ha->flags.eeh_busy) if (!irq && ha->flags.eeh_busy)
ql_log(ql_log_warn, vha, 0x5044, ql_log(ql_log_warn, vha, 0x5044,
@ -2158,11 +2154,9 @@ qla82xx_msix_default(int irq, void *dev_id)
status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat); status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
#endif #endif
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && qla2x00_handle_mbx_completion(ha, status);
(status & MBX_INTERRUPT) && ha->flags.mbox_int) { spin_unlock_irqrestore(&ha->hardware_lock, flags);
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp);
}
return IRQ_HANDLED; return IRQ_HANDLED;
} }
@ -3345,7 +3339,7 @@ void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
ha->flags.mbox_busy = 0; ha->flags.mbox_busy = 0;
ql_log(ql_log_warn, vha, 0x6010, ql_log(ql_log_warn, vha, 0x6010,
"Doing premature completion of mbx command.\n"); "Doing premature completion of mbx command.\n");
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags)) if (test_and_clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
complete(&ha->mbx_intr_comp); complete(&ha->mbx_intr_comp);
} }
} }