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[SCSI] libfcoe: Host doesnt handle CVL to NPIV ports 

Clear virtual link for NPIV ports is now handled by resetting
the matching vnport.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Bhanu Prakash Gollapudi 2010-06-11 16:44:31 -07:00 committed by James Bottomley
parent 0a9c5d344d
commit 5550fda73d
1 changed files with 33 additions and 9 deletions
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42
drivers/scsi/fcoe/libfcoe.c
View File

@ -989,7 +989,9 @@ static void fcoe_ctlr_recv_clr_vlink(struct fcoe_ctlr *fip,
size_t dlen;
struct fcoe_fcf *fcf = fip->sel_fcf;
struct fc_lport *lport = fip->lp;
u32 desc_mask;
struct fc_lport *vn_port = NULL;
u32 desc_mask;
int is_vn_port = 0;
LIBFCOE_FIP_DBG(fip, "Clear Virtual Link received\n");
@ -1038,8 +1040,26 @@ static void fcoe_ctlr_recv_clr_vlink(struct fcoe_ctlr *fip,
if (compare_ether_addr(vp->fd_mac,
fip->get_src_addr(lport)) == 0 &&
get_unaligned_be64(&vp->fd_wwpn) == lport->wwpn &&
ntoh24(vp->fd_fc_id) == lport->port_id)
ntoh24(vp->fd_fc_id) == lport->port_id) {
desc_mask &= ~BIT(FIP_DT_VN_ID);
break;
}
/* check if clr_vlink is for NPIV port */
mutex_lock(&lport->lp_mutex);
list_for_each_entry(vn_port, &lport->vports, list) {
if (compare_ether_addr(vp->fd_mac,
fip->get_src_addr(vn_port)) == 0 &&
(get_unaligned_be64(&vp->fd_wwpn)
== vn_port->wwpn) &&
(ntoh24(vp->fd_fc_id) ==
fc_host_port_id(vn_port->host))) {
desc_mask &= ~BIT(FIP_DT_VN_ID);
is_vn_port = 1;
break;
}
}
mutex_unlock(&lport->lp_mutex);
break;
default:
/* standard says ignore unknown descriptors >= 128 */
@ -1060,14 +1080,18 @@ static void fcoe_ctlr_recv_clr_vlink(struct fcoe_ctlr *fip,
} else {
LIBFCOE_FIP_DBG(fip, "performing Clear Virtual Link\n");
spin_lock_bh(&fip->lock);
per_cpu_ptr(lport->dev_stats,
smp_processor_id())->VLinkFailureCount++;
fcoe_ctlr_reset(fip);
spin_unlock_bh(&fip->lock);
if (is_vn_port)
fc_lport_reset(vn_port);
else {
spin_lock_bh(&fip->lock);
per_cpu_ptr(lport->dev_stats,
smp_processor_id())->VLinkFailureCount++;
fcoe_ctlr_reset(fip);
spin_unlock_bh(&fip->lock);
fc_lport_reset(fip->lp);
fcoe_ctlr_solicit(fip, NULL);
fc_lport_reset(fip->lp);
fcoe_ctlr_solicit(fip, NULL);
}
}
}