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Message-Id: <1306247591-6222-1-git-send-email-yxlraid@gmail.com>
Date: Tue, 24 May 2011 22:33:11 +0800
From: yxlraid@...il.com
To: James.Bottomley@...e.de
Cc: jslaby@...e.cz, linux-scsi@...r.kernel.org,
linux-kernel@...r.kernel.org, yuxiangl@...vell.com,
jfeng@...vell.com
Subject: [PATCH 4/9] [SCSI] mvsas: fix 94xx hotplug issue
From: Xiangliang Yu <yuxiangl@...vell.com>
-- Fix 94xx A0/B0 revision hotplug issue.
-- Remove unused macro: DISABLE_HOTPLUG_DMA_FIX
Signed-off-by: Xiangliang Yu <yuxiangl@...vell.com>
---
drivers/scsi/mvsas/mv_64xx.c | 9 ++++-----
drivers/scsi/mvsas/mv_94xx.c | 16 +++++++++++-----
drivers/scsi/mvsas/mv_init.c | 15 +++++++++++----
drivers/scsi/mvsas/mv_sas.c | 28 ++++++++++++----------------
drivers/scsi/mvsas/mv_sas.h | 9 ++++-----
5 files changed, 42 insertions(+), 35 deletions(-)
diff --git a/drivers/scsi/mvsas/mv_64xx.c b/drivers/scsi/mvsas/mv_64xx.c
index c88b8a7..b02dd80 100644
--- a/drivers/scsi/mvsas/mv_64xx.c
+++ b/drivers/scsi/mvsas/mv_64xx.c
@@ -744,11 +744,13 @@ int mvs_64xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
return -1;
}
-#ifndef DISABLE_HOTPLUG_DMA_FIX
-void mvs_64xx_fix_dma(dma_addr_t buf_dma, int buf_len, int from, void *prd)
+void mvs_64xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
+ int buf_len, int from, void *prd)
{
int i;
struct mvs_prd *buf_prd = prd;
+ dma_addr_t buf_dma = mvi->bulk_buffer_dma;
+
buf_prd += from;
for (i = 0; i < MAX_SG_ENTRY - from; i++) {
buf_prd->addr = cpu_to_le64(buf_dma);
@@ -756,7 +758,6 @@ void mvs_64xx_fix_dma(dma_addr_t buf_dma, int buf_len, int from, void *prd)
++buf_prd;
}
}
-#endif
static void mvs_64xx_tune_interrupt(struct mvs_info *mvi, u32 time)
{
@@ -830,9 +831,7 @@ const struct mvs_dispatch mvs_64xx_dispatch = {
mvs_64xx_spi_buildcmd,
mvs_64xx_spi_issuecmd,
mvs_64xx_spi_waitdataready,
-#ifndef DISABLE_HOTPLUG_DMA_FIX
mvs_64xx_fix_dma,
-#endif
mvs_64xx_tune_interrupt,
NULL,
};
diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c
index e589f31..ef3c901 100644
--- a/drivers/scsi/mvsas/mv_94xx.c
+++ b/drivers/scsi/mvsas/mv_94xx.c
@@ -871,19 +871,27 @@ int mvs_94xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
return -1;
}
-#ifndef DISABLE_HOTPLUG_DMA_FIX
-void mvs_94xx_fix_dma(dma_addr_t buf_dma, int buf_len, int from, void *prd)
+void mvs_94xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
+ int buf_len, int from, void *prd)
{
int i;
struct mvs_prd *buf_prd = prd;
+ dma_addr_t buf_dma;
buf_prd += from;
+
+ if ((mvi->pdev->revision == VANIR_A0_REV) ||
+ (mvi->pdev->revision == VANIR_B0_REV))
+ buf_dma = (phy_mask <= 0x08) ?
+ mvi->bulk_buffer_dma : mvi->bulk_buffer_dma1;
+ else
+ return;
+
for (i = 0; i < MAX_SG_ENTRY - from; i++) {
buf_prd->addr = cpu_to_le64(buf_dma);
buf_prd->im_len.len = cpu_to_le32(buf_len);
++buf_prd;
}
}
-#endif
/*
* FIXME JEJB: temporary nop clear_srs_irq to make 94xx still work
@@ -967,9 +975,7 @@ const struct mvs_dispatch mvs_94xx_dispatch = {
mvs_94xx_spi_buildcmd,
mvs_94xx_spi_issuecmd,
mvs_94xx_spi_waitdataready,
-#ifndef DISABLE_HOTPLUG_DMA_FIX
mvs_94xx_fix_dma,
-#endif
mvs_94xx_tune_interrupt,
mvs_94xx_non_spec_ncq_error,
};
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 531093d..b111ae2 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -153,11 +153,13 @@ static void mvs_free(struct mvs_info *mvi)
dma_free_coherent(mvi->dev,
sizeof(*mvi->slot) * slot_nr,
mvi->slot, mvi->slot_dma);
-#ifndef DISABLE_HOTPLUG_DMA_FIX
+
if (mvi->bulk_buffer)
dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
mvi->bulk_buffer, mvi->bulk_buffer_dma);
-#endif
+ if (mvi->bulk_buffer1)
+ dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
+ mvi->bulk_buffer1, mvi->bulk_buffer_dma1);
MVS_CHIP_DISP->chip_iounmap(mvi);
if (mvi->shost)
@@ -278,13 +280,18 @@ static int __devinit mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
goto err_out;
memset(mvi->slot, 0, sizeof(*mvi->slot) * slot_nr);
-#ifndef DISABLE_HOTPLUG_DMA_FIX
mvi->bulk_buffer = dma_alloc_coherent(mvi->dev,
TRASH_BUCKET_SIZE,
&mvi->bulk_buffer_dma, GFP_KERNEL);
if (!mvi->bulk_buffer)
goto err_out;
-#endif
+
+ mvi->bulk_buffer1 = dma_alloc_coherent(mvi->dev,
+ TRASH_BUCKET_SIZE,
+ &mvi->bulk_buffer_dma1, GFP_KERNEL);
+ if (!mvi->bulk_buffer1)
+ goto err_out;
+
sprintf(pool_name, "%s%d", "mvs_dma_pool", mvi->id);
mvi->dma_pool = pci_pool_create(pool_name, mvi->pdev, MVS_SLOT_BUF_SZ, 16, 0);
if (!mvi->dma_pool) {
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index aaa475a..4585dc0 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -630,14 +630,11 @@ static int mvs_task_prep_ata(struct mvs_info *mvi,
(mvi_dev->taskfileset << TXQ_SRS_SHIFT);
mvi->tx[mvi->tx_prod] = cpu_to_le32(del_q);
-#ifndef DISABLE_HOTPLUG_DMA_FIX
if (task->data_dir == DMA_FROM_DEVICE)
flags = (MVS_CHIP_DISP->prd_count() << MCH_PRD_LEN_SHIFT);
else
flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);
-#else
- flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);
-#endif
+
if (task->ata_task.use_ncq)
flags |= MCH_FPDMA;
if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) {
@@ -729,11 +726,11 @@ static int mvs_task_prep_ata(struct mvs_info *mvi,
/* fill in PRD (scatter/gather) table, if any */
MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd);
-#ifndef DISABLE_HOTPLUG_DMA_FIX
+
if (task->data_dir == DMA_FROM_DEVICE)
- MVS_CHIP_DISP->dma_fix(mvi->bulk_buffer_dma,
+ MVS_CHIP_DISP->dma_fix(mvi, sas_port->phy_mask,
TRASH_BUCKET_SIZE, tei->n_elem, buf_prd);
-#endif
+
return 0;
}
@@ -1283,6 +1280,13 @@ static u32 mvs_is_sig_fis_received(u32 irq_status)
return irq_status & PHYEV_SIG_FIS;
}
+static void mvs_sig_remove_timer(struct mvs_phy *phy)
+{
+ if (phy->timer.function)
+ del_timer(&phy->timer);
+ phy->timer.function = NULL;
+}
+
void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st)
{
struct mvs_phy *phy = &mvi->phy[i];
@@ -1305,6 +1309,7 @@ void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st)
if (phy->phy_type & PORT_TYPE_SATA) {
phy->identify.target_port_protocols = SAS_PROTOCOL_STP;
if (mvs_is_sig_fis_received(phy->irq_status)) {
+ mvs_sig_remove_timer(phy);
phy->phy_attached = 1;
phy->att_dev_sas_addr =
i + mvi->id * mvi->chip->n_phy;
@@ -1322,7 +1327,6 @@ void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st)
tmp | PHYEV_SIG_FIS);
phy->phy_attached = 0;
phy->phy_type &= ~PORT_TYPE_SATA;
- MVS_CHIP_DISP->phy_reset(mvi, i, 0);
goto out_done;
}
} else if (phy->phy_type & PORT_TYPE_SAS
@@ -2193,13 +2197,6 @@ static void mvs_sig_time_out(unsigned long tphy)
}
}
-static void mvs_sig_remove_timer(struct mvs_phy *phy)
-{
- if (phy->timer.function)
- del_timer(&phy->timer);
- phy->timer.function = NULL;
-}
-
void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events)
{
u32 tmp;
@@ -2263,7 +2260,6 @@ void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events)
}
if (phy->irq_status & (PHYEV_SIG_FIS | PHYEV_ID_DONE)) {
phy->phy_status = mvs_is_phy_ready(mvi, phy_no);
- mvs_sig_remove_timer(phy);
mv_dprintk("notify plug in on phy[%d]\n", phy_no);
if (phy->phy_status) {
mdelay(10);
diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h
index fed8495..3399ff1 100644
--- a/drivers/scsi/mvsas/mv_sas.h
+++ b/drivers/scsi/mvsas/mv_sas.h
@@ -168,9 +168,8 @@ struct mvs_dispatch {
);
int (*spi_issuecmd)(struct mvs_info *mvi, u32 cmd);
int (*spi_waitdataready)(struct mvs_info *mvi, u32 timeout);
-#ifndef DISABLE_HOTPLUG_DMA_FIX
- void (*dma_fix)(dma_addr_t buf_dma, int buf_len, int from, void *prd);
-#endif
+ void (*dma_fix)(struct mvs_info *mvi, u32 phy_mask,
+ int buf_len, int from, void *prd);
void (*tune_interrupt)(struct mvs_info *mvi, u32 time);
void (*non_spec_ncq_error)(struct mvs_info *mvi);
@@ -409,11 +408,11 @@ struct mvs_info {
void *addon;
struct hba_info_page hba_info_param;
struct mvs_device devices[MVS_MAX_DEVICES];
-#ifndef DISABLE_HOTPLUG_DMA_FIX
void *bulk_buffer;
dma_addr_t bulk_buffer_dma;
+ void *bulk_buffer1;
+ dma_addr_t bulk_buffer_dma1;
#define TRASH_BUCKET_SIZE 0x20000
-#endif
void *dma_pool;
struct mvs_slot_info slot_info[0];
};
--
1.7.4.4
--
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