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authorAndrew Vasquez <andrew.vasquez@qlogic.com>2009-02-08 20:50:12 -0800
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-02-10 11:15:20 -0500
commit8a659571eccfde1df9bd057d67be51d1aaa0e2db (patch)
tree4d7c637f72ccb7de153c80300713c5f595ae3f44 /drivers/scsi/qla2xxx/qla_def.h
parent618a752319503a64d1b66615e8ea2a0e7edaf914 (diff)
[SCSI] qla2xxx: Properly acknowledge IDC notification messages.
To ensure smooth operations amongst the FCoE and NIC side components of the ISP81xx chip, the FCoE driver (qla2xxx) must ensure the 10gb NIC driver (qlge) does not timeout waiting for IDC (Inter-Driver Communication) acknowledgments. The acknowledgment requirements are trivial -- a simple mirroring of incoming mailbox registers during the AEN to a process-context capable mailbox command. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_def.h')
-rw-r--r--drivers/scsi/qla2xxx/qla_def.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 023ee77fb02..e0c5bb54b25 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2135,6 +2135,7 @@ struct qla_msix_entry {
/* Work events. */
enum qla_work_type {
QLA_EVT_AEN,
+ QLA_EVT_IDC_ACK,
};
@@ -2149,6 +2150,10 @@ struct qla_work_evt {
enum fc_host_event_code code;
u32 data;
} aen;
+ struct {
+#define QLA_IDC_ACK_REGS 7
+ uint16_t mb[QLA_IDC_ACK_REGS];
+ } idc_ack;
} u;
};