Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7a195f464e0692607aca8150c8489a838fab684b
Commit: 7a195f464e0692607aca8150c8489a838fab684b
Parent: 232f08fc82b15fdcaffc68c558115bfb2b34db86
Author: Prakash, Sathya <[EMAIL PROTECTED]>
AuthorDate: Tue Aug 14 16:08:40 2007 +0530
Committer: James Bottomley <[EMAIL PROTECTED]>
CommitDate: Fri Oct 12 14:40:40 2007 -0400
[SCSI] mpt fusion: Usage of high priority request FIFO to send task
management commands
Added support for sending the task management requests through High priority
request FIFO instead of Doorbell writes when firmware support High priority
FIFO.
signed-off-by: Sathya Prakash <[EMAIL PROTECTED]>
Acked-by: Eric Moore <[EMAIL PROTECTED]>
Signed-off-by: James Bottomley <[EMAIL PROTECTED]>
---
drivers/message/fusion/mptbase.c | 33 +++++++++++++++++++++++++++
drivers/message/fusion/mptbase.h | 4 ++-
drivers/message/fusion/mptctl.c | 44 +++++++++++++++++++++++-------------
drivers/message/fusion/mptsas.c | 8 +------
drivers/message/fusion/mptscsih.c | 14 ++++++++---
5 files changed, 75 insertions(+), 28 deletions(-)
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 828f0ca..7ef86cb 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -842,6 +842,38 @@ mpt_put_msg_frame(int handle, MPT_ADAPTER *ioc,
MPT_FRAME_HDR *mf)
CHIPREG_WRITE32(&ioc->chip->RequestFifo, mf_dma_addr);
}
+/**
+ * mpt_put_msg_frame_hi_pri - Send a protocol specific MPT request frame
+ * to a IOC using hi priority request queue.
+ * @handle: Handle of registered MPT protocol driver
+ * @ioc: Pointer to MPT adapter structure
+ * @mf: Pointer to MPT request frame
+ *
+ * This routine posts a MPT request frame to the request post FIFO of a
+ * specific MPT adapter.
+ **/
+void
+mpt_put_msg_frame_hi_pri(int handle, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
+{
+ u32 mf_dma_addr;
+ int req_offset;
+ u16 req_idx; /* Request index */
+
+ /* ensure values are reset properly! */
+ mf->u.frame.hwhdr.msgctxu.fld.cb_idx = handle;
+ req_offset = (u8 *)mf - (u8 *)ioc->req_frames;
+ req_idx = req_offset / ioc->req_sz;
+ mf->u.frame.hwhdr.msgctxu.fld.req_idx = cpu_to_le16(req_idx);
+ mf->u.frame.hwhdr.msgctxu.fld.rsvd = 0;
+
+ DBG_DUMP_PUT_MSG_FRAME(ioc, (u32 *)mf);
+
+ mf_dma_addr = (ioc->req_frames_low_dma + req_offset);
+ dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mf_dma_addr=%x req_idx=%d\n",
+ ioc->name, mf_dma_addr, req_idx));
+ CHIPREG_WRITE32(&ioc->chip->RequestHiPriFifo, mf_dma_addr);
+}
+
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/**
* mpt_free_msg_frame - Place MPT request frame back on FreeQ.
@@ -7315,6 +7347,7 @@ EXPORT_SYMBOL(mpt_device_driver_register);
EXPORT_SYMBOL(mpt_device_driver_deregister);
EXPORT_SYMBOL(mpt_get_msg_frame);
EXPORT_SYMBOL(mpt_put_msg_frame);
+EXPORT_SYMBOL(mpt_put_msg_frame_hi_pri);
EXPORT_SYMBOL(mpt_free_msg_frame);
EXPORT_SYMBOL(mpt_add_sge);
EXPORT_SYMBOL(mpt_send_handshake_request);
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index a8c8080..012be5e 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -336,7 +336,8 @@ typedef struct _SYSIF_REGS
u32 Reserved2[2]; /* 38-3F reserved for future use */
u32 RequestFifo; /* 40 Request Post/Free FIFO */
u32 ReplyFifo; /* 44 Reply Post/Free FIFO */
- u32 Reserved3[2]; /* 48-4F reserved for future use */
+ u32 RequestHiPriFifo; /* 48 Hi Priority Request FIFO */
+ u32 Reserved3; /* 4C-4F reserved for future use */
u32 HostIndex; /* 50 Host Index register */
u32 Reserved4[15]; /* 54-8F */
u32 Fubar; /* 90 For Fubar usage */
@@ -893,6 +894,7 @@ extern void mpt_device_driver_deregister(int cb_idx);
extern MPT_FRAME_HDR *mpt_get_msg_frame(int handle, MPT_ADAPTER *ioc);
extern void mpt_free_msg_frame(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf);
extern void mpt_put_msg_frame(int handle, MPT_ADAPTER *ioc, MPT_FRAME_HDR
*mf);
+extern void mpt_put_msg_frame_hi_pri(int handle, MPT_ADAPTER *ioc,
MPT_FRAME_HDR *mf);
extern void mpt_add_sge(char *pAddr, u32 flagslength, dma_addr_t dma_addr);
extern int mpt_send_handshake_request(int handle, MPT_ADAPTER *ioc, int
reqBytes, u32 *req, int sleepFlag);
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index 89695e7..dce1e9c 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -342,7 +342,7 @@ static int mptctl_bus_reset(MPT_IOCTL *ioctl)
SCSITaskMgmt_t *pScsiTm;
MPT_SCSI_HOST *hd;
int ii;
- int retval;
+ int retval=0;
ioctl->reset &= ~MPTCTL_RESET_OK;
@@ -395,12 +395,19 @@ static int mptctl_bus_reset(MPT_IOCTL *ioctl)
DBG_DUMP_TM_REQUEST_FRAME(ioctl->ioc, (u32 *)mf);
ioctl->wait_done=0;
- if ((retval = mpt_send_handshake_request(mptctl_id, ioctl->ioc,
- sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP)) != 0) {
- dfailprintk(ioctl->ioc, printk(MYIOC_s_ERR_FMT "_send_handshake
FAILED!"
- " (hd %p, ioc %p, mf %p) \n", hd->ioc->name, hd,
- hd->ioc, mf));
- goto mptctl_bus_reset_done;
+
+ if ((ioctl->ioc->facts.IOCCapabilities &
MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
+ (ioctl->ioc->facts.MsgVersion >= MPI_VERSION_01_05))
+ mpt_put_msg_frame_hi_pri(mptctl_id, ioctl->ioc, mf);
+ else {
+ retval = mpt_send_handshake_request(mptctl_id, ioctl->ioc,
+ sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
+ if (retval != 0) {
+ dfailprintk(ioctl->ioc, printk(MYIOC_s_ERR_FMT
"_send_handshake FAILED!"
+ " (hd %p, ioc %p, mf %p) \n", hd->ioc->name, hd,
+ hd->ioc, mf));
+ goto mptctl_bus_reset_done;
+ }
}
/* Now wait for the command to complete */
@@ -2187,15 +2194,20 @@ mptctl_do_mpt_command (struct mpt_ioctl_command karg,
void __user *mfPtr)
DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf);
- if (mpt_send_handshake_request(mptctl_id, ioc,
- sizeof(SCSITaskMgmt_t), (u32*)mf,
- CAN_SLEEP) != 0) {
- dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
"_send_handshake FAILED!"
- " (ioc %p, mf %p) \n", ioc->name,
- ioc, mf));
- mptctl_free_tm_flags(ioc);
- rc = -ENODATA;
- goto done_free_mem;
+ if ((ioc->facts.IOCCapabilities &
MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
+ (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
+ mpt_put_msg_frame_hi_pri(mptctl_id, ioc, mf);
+ else {
+ rc =mpt_send_handshake_request(mptctl_id, ioc,
+ sizeof(SCSITaskMgmt_t), (u32*)mf, CAN_SLEEP);
+ if (rc != 0) {
+ dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
+ "_send_handshake FAILED! (ioc %p, mf %p)\n",
+ ioc->name, ioc, mf));
+ mptctl_free_tm_flags(ioc);
+ rc = -ENODATA;
+ goto done_free_mem;
+ }
}
} else
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index b9c69bf..fe3b505 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -623,13 +623,7 @@ mptsas_target_reset(MPT_ADAPTER *ioc, u8 channel, u8 id)
DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf);
- if (mpt_send_handshake_request(ioc->TaskCtx, ioc,
- sizeof(SCSITaskMgmt_t), (u32 *)mf, NO_SLEEP)) {
- mpt_free_msg_frame(ioc, mf);
- dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, tm handshake
failed @%d!!\n",
- ioc->name,__FUNCTION__, __LINE__));
- return 0;
- }
+ mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
return 1;
}
diff --git a/drivers/message/fusion/mptscsih.c
b/drivers/message/fusion/mptscsih.c
index 5431529..b8b0598 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -1717,12 +1717,18 @@ mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8
channel, u8 id, int lun, i
DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
- if ((retval = mpt_send_handshake_request(hd->ioc->TaskCtx, hd->ioc,
- sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP)) != 0) {
- dfailprintk(hd->ioc, printk(MYIOC_s_ERR_FMT "send_handshake
FAILED!"
+ if ((hd->ioc->facts.IOCCapabilities &
MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
+ (hd->ioc->facts.MsgVersion >= MPI_VERSION_01_05))
+ mpt_put_msg_frame_hi_pri(hd->ioc->TaskCtx, hd->ioc, mf);
+ else {
+ retval = mpt_send_handshake_request(hd->ioc->TaskCtx, hd->ioc,
+ sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
+ if (retval) {
+ dfailprintk(hd->ioc, printk(MYIOC_s_ERR_FMT
"send_handshake FAILED!"
" (hd %p, ioc %p, mf %p, rc=%d) \n", hd->ioc->name, hd,
hd->ioc, mf, retval));
- goto fail_out;
+ goto fail_out;
+ }
}
if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {
-
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