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 <sathya.prakash@xxxxxxx>
---
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 81e9e9c..290f126 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..ca75ee8 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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