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[SCSI] qla2xxx: Handle MPI timeout indicated by AE8002

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In case the MPI times out, the FW issues an async event AE8002
to indicate this to every FCoE function. The FC/FCoE driver is
required to handle this, by doing a soft reset and issuing a
Write MPI register mailbox command to reset the MPI.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Madhuranath Iyengar
2010-09-03 15:20:54 -07:00
committed by James Bottomley
parent bddd2d65a4
commit b1d46989c1
5 changed files with 107 additions and 1 deletions
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6
drivers/scsi/qla2xxx/qla_def.h
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@@ -706,6 +706,11 @@ typedef struct {
#define MBC_SET_PORT_CONFIG 0x122 /* Set port configuration */
#define MBC_GET_PORT_CONFIG 0x123 /* Get port configuration */
/*
* ISP81xx mailbox commands
*/
#define MBC_WRITE_MPI_REGISTER 0x01 /* Write MPI Register. */
/* Firmware return data sizes */
#define FCAL_MAP_SIZE 128
@@ -2858,6 +2863,7 @@ typedef struct scsi_qla_host {
#define NPIV_CONFIG_NEEDED 16
#define ISP_UNRECOVERABLE 17
#define FCOE_CTX_RESET_NEEDED 18 /* Initiate FCoE context reset */
#define MPI_RESET_NEEDED 19 /* Initiate MPI FW reset */
uint32_t device_flags;
#define SWITCH_FOUND BIT_0