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[SCSI] mpt fusion: Optimized SendEvent notification Using Doorbell instead FIFO 

SendEventNotification was handled through FIFO, now it is using doorbell to
communicate with hardware. Added Sleep Flag as an extra argument to support
Can-Sleep feature.  Resending patch including compilation error fix reviewed
by Grant Grundler.

Signed-off-by: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Kashyap, Desai 2009-05-29 16:39:06 +05:30 committed by James Bottomley
parent 7b5a65b9e6
commit fd76175a7d
1 changed files with 42 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
drivers/message/fusion/mptbase.c
View File

@ -192,7 +192,8 @@ static void mpt_read_ioc_pg_1(MPT_ADAPTER *ioc);
static void mpt_read_ioc_pg_4(MPT_ADAPTER *ioc);
static void mpt_timer_expired(unsigned long data);
static void mpt_get_manufacturing_pg_0(MPT_ADAPTER *ioc);
static int SendEventNotification(MPT_ADAPTER *ioc, u8 EvSwitch);
static int SendEventNotification(MPT_ADAPTER *ioc, u8 EvSwitch,
int sleepFlag);
static int SendEventAck(MPT_ADAPTER *ioc, EventNotificationReply_t *evnp);
static int mpt_host_page_access_control(MPT_ADAPTER *ioc, u8 access_control_value, int sleepFlag);
static int mpt_host_page_alloc(MPT_ADAPTER *ioc, pIOCInit_t ioc_init);
@ -208,7 +209,8 @@ static int procmpt_iocinfo_read(char *buf, char **start, off_t offset,
static void mpt_get_fw_exp_ver(char *buf, MPT_ADAPTER *ioc);
//int mpt_HardResetHandler(MPT_ADAPTER *ioc, int sleepFlag);
static int ProcessEventNotification(MPT_ADAPTER *ioc, EventNotificationReply_t *evReply, int *evHandlers);
static int ProcessEventNotification(MPT_ADAPTER *ioc,
EventNotificationReply_t *evReply, int *evHandlers);
static void mpt_iocstatus_info(MPT_ADAPTER *ioc, u32 ioc_status, MPT_FRAME_HDR *mf);
static void mpt_fc_log_info(MPT_ADAPTER *ioc, u32 log_info);
static void mpt_spi_log_info(MPT_ADAPTER *ioc, u32 log_info);
@ -2472,28 +2474,36 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
}
}
/* Enable MPT base driver management of EventNotification
* and EventAck handling.
*/
if ((ret == 0) && (!ioc->facts.EventState)) {
dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
"SendEventNotification\n",
ioc->name));
ret = SendEventNotification(ioc, 1, sleepFlag); /* 1=Enable */
}
if (ioc->alt_ioc && alt_ioc_ready && !ioc->alt_ioc->facts.EventState)
rc = SendEventNotification(ioc->alt_ioc, 1, sleepFlag);
if (ret == 0) {
/* Enable! (reply interrupt) */
CHIPREG_WRITE32(&ioc->chip->IntMask, MPI_HIM_DIM);
ioc->active = 1;
}
if (reset_alt_ioc_active && ioc->alt_ioc) {
/* (re)Enable alt-IOC! (reply interrupt) */
dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "alt_ioc reply irq re-enabled\n",
ioc->alt_ioc->name));
CHIPREG_WRITE32(&ioc->alt_ioc->chip->IntMask, MPI_HIM_DIM);
ioc->alt_ioc->active = 1;
if (rc == 0) { /* alt ioc */
if (reset_alt_ioc_active && ioc->alt_ioc) {
/* (re)Enable alt-IOC! (reply interrupt) */
dinitprintk(ioc, printk(MYIOC_s_DEBUG_FMT "alt-ioc"
"reply irq re-enabled\n",
ioc->alt_ioc->name));
CHIPREG_WRITE32(&ioc->alt_ioc->chip->IntMask,
MPI_HIM_DIM);
ioc->alt_ioc->active = 1;
}
}
/* Enable MPT base driver management of EventNotification
* and EventAck handling.
*/
if ((ret == 0) && (!ioc->facts.EventState))
(void) SendEventNotification(ioc, 1); /* 1=Enable EventNotification */
if (ioc->alt_ioc && alt_ioc_ready && !ioc->alt_ioc->facts.EventState)
(void) SendEventNotification(ioc->alt_ioc, 1); /* 1=Enable EventNotification */
/* Add additional "reason" check before call to GetLanConfigPages
* (combined with GetIoUnitPage2 call). This prevents a somewhat
@ -6019,30 +6029,28 @@ mpt_get_manufacturing_pg_0(MPT_ADAPTER *ioc)
* SendEventNotification - Send EventNotification (on or off) request to adapter
* @ioc: Pointer to MPT_ADAPTER structure
* @EvSwitch: Event switch flags
* @sleepFlag: Specifies whether the process can sleep
*/
static int
SendEventNotification(MPT_ADAPTER *ioc, u8 EvSwitch)
SendEventNotification(MPT_ADAPTER *ioc, u8 EvSwitch, int sleepFlag)
{
EventNotification_t *evnp;
EventNotification_t evn;
MPIDefaultReply_t reply_buf;
evnp = (EventNotification_t *) mpt_get_msg_frame(mpt_base_index, ioc);
if (evnp == NULL) {
devtverboseprintk(ioc, printk(MYIOC_s_WARN_FMT "Unable to allocate event request frame!\n",
ioc->name));
return 0;
}
memset(evnp, 0, sizeof(*evnp));
memset(&evn, 0, sizeof(EventNotification_t));
memset(&reply_buf, 0, sizeof(MPIDefaultReply_t));
devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Sending EventNotification (%d) request %p\n", ioc->name, EvSwitch, evnp));
evn.Function = MPI_FUNCTION_EVENT_NOTIFICATION;
evn.Switch = EvSwitch;
evn.MsgContext = cpu_to_le32(mpt_base_index << 16);
evnp->Function = MPI_FUNCTION_EVENT_NOTIFICATION;
evnp->ChainOffset = 0;
evnp->MsgFlags = 0;
evnp->Switch = EvSwitch;
devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"Sending EventNotification (%d) request %p\n",
ioc->name, EvSwitch, &evn));
mpt_put_msg_frame(mpt_base_index, ioc, (MPT_FRAME_HDR *)evnp);
return 0;
return mpt_handshake_req_reply_wait(ioc, sizeof(EventNotification_t),
(u32 *)&evn, sizeof(MPIDefaultReply_t), (u16 *)&reply_buf, 30,
sleepFlag);
}
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/