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Message-Id: <1306247709-6327-1-git-send-email-yxlraid@gmail.com>
Date: Tue, 24 May 2011 22:35:09 +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 5/9] [SCSI] mvsas: Remove unused macros, variables and functions
From: Xiangliang Yu <yuxiangl@...vell.com>
-- Remove unused macros: VSR_PHY_VS0, VSR_PHY_VS1, MVS_SLOTS,
MVS_CAN_QUEUE, MVS_MSI, SG_MX, _MV_DUMP, MV_DISABLE_NCQ
-- Remove unused variables for mvs_info: irq, exp_req, cmd_size
-- Remove unused functions: mvs_get_sas_addr, mvs_hexdump,
mvs_hba_sb_dump, mvs_hab_memory_dump, mvs_hba_cq_dump
Signed-off-by: Xiangliang Yu <yuxiangl@...vell.com>
---
drivers/scsi/mvsas/mv_64xx.c | 1 -
drivers/scsi/mvsas/mv_94xx.c | 1 -
drivers/scsi/mvsas/mv_94xx.h | 2 -
drivers/scsi/mvsas/mv_defs.h | 5 +-
drivers/scsi/mvsas/mv_init.c | 24 ++++---
drivers/scsi/mvsas/mv_sas.c | 163 +----------------------------------------
drivers/scsi/mvsas/mv_sas.h | 13 +---
7 files changed, 20 insertions(+), 189 deletions(-)
diff --git a/drivers/scsi/mvsas/mv_64xx.c b/drivers/scsi/mvsas/mv_64xx.c
index b02dd80..96bde34 100644
--- a/drivers/scsi/mvsas/mv_64xx.c
+++ b/drivers/scsi/mvsas/mv_64xx.c
@@ -803,7 +803,6 @@ const struct mvs_dispatch mvs_64xx_dispatch = {
mvs_write_port_irq_stat,
mvs_read_port_irq_mask,
mvs_write_port_irq_mask,
- mvs_get_sas_addr,
mvs_64xx_command_active,
mvs_64xx_clear_srs_irq,
mvs_64xx_issue_stop,
diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c
index ef3c901..5b25f1b 100644
--- a/drivers/scsi/mvsas/mv_94xx.c
+++ b/drivers/scsi/mvsas/mv_94xx.c
@@ -947,7 +947,6 @@ const struct mvs_dispatch mvs_94xx_dispatch = {
mvs_write_port_irq_stat,
mvs_read_port_irq_mask,
mvs_write_port_irq_mask,
- mvs_get_sas_addr,
mvs_94xx_command_active,
mvs_94xx_clear_srs_irq,
mvs_94xx_issue_stop,
diff --git a/drivers/scsi/mvsas/mv_94xx.h b/drivers/scsi/mvsas/mv_94xx.h
index e71ae11..458d127 100644
--- a/drivers/scsi/mvsas/mv_94xx.h
+++ b/drivers/scsi/mvsas/mv_94xx.h
@@ -132,8 +132,6 @@ enum sas_sata_vsp_regs {
VSR_PHY_MODE9 = 0x09 * 4, /* Test */
VSR_PHY_MODE10 = 0x0A * 4, /* Power */
VSR_PHY_MODE11 = 0x0B * 4, /* Phy Mode */
- VSR_PHY_VS0 = 0x0C * 4, /* Vednor Specific 0 */
- VSR_PHY_VS1 = 0x0D * 4, /* Vednor Specific 1 */
VSR_PHY_FFE_CONTROL = 0x10C,
VSR_PHY_DFE_UPDATE_CRTL = 0x110,
diff --git a/drivers/scsi/mvsas/mv_defs.h b/drivers/scsi/mvsas/mv_defs.h
index 9202bc6..e39629d 100644
--- a/drivers/scsi/mvsas/mv_defs.h
+++ b/drivers/scsi/mvsas/mv_defs.h
@@ -43,7 +43,6 @@ enum chip_flavors {
/* driver compile-time configuration */
enum driver_configuration {
- MVS_SLOTS = 512, /* command slots */
MVS_TX_RING_SZ = 1024, /* TX ring size (12-bit) */
MVS_RX_RING_SZ = 1024, /* RX ring size (12-bit) */
/* software requires power-of-2
@@ -56,8 +55,7 @@ enum driver_configuration {
MVS_SSP_CMD_SZ = 64, /* SSP command table buffer size */
MVS_ATA_CMD_SZ = 96, /* SATA command table buffer size */
MVS_OAF_SZ = 64, /* Open address frame buffer size */
- MVS_QUEUE_SIZE = 32, /* Support Queue depth */
- MVS_CAN_QUEUE = MVS_SLOTS - 2, /* SCSI Queue depth */
+ MVS_QUEUE_SIZE = 64, /* Support Queue depth */
MVS_SOC_CAN_QUEUE = MVS_SOC_SLOTS - 2,
};
@@ -392,7 +390,6 @@ enum sas_cmd_port_registers {
};
enum mvs_info_flags {
- MVF_MSI = (1U << 0), /* MSI is enabled */
MVF_PHY_PWR_FIX = (1U << 1), /* bug workaround */
MVF_FLAG_SOC = (1U << 2), /* SoC integrated controllers */
};
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index b111ae2..a7815f9 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -53,7 +53,6 @@ static const struct mvs_chip_info mvs_chips[] = {
struct device_attribute *mvst_host_attrs[];
#define SOC_SAS_NUM 2
-#define SG_MX 64
static struct scsi_host_template mvs_sht = {
.module = THIS_MODULE,
@@ -70,7 +69,7 @@ static struct scsi_host_template mvs_sht = {
.can_queue = 1,
.cmd_per_lun = 1,
.this_id = -1,
- .sg_tablesize = SG_MX,
+ .sg_tablesize = SG_ALL,
.max_sectors = SCSI_DEFAULT_MAX_SECTORS,
.use_clustering = ENABLE_CLUSTERING,
.eh_device_reset_handler = sas_eh_device_reset_handler,
@@ -133,7 +132,7 @@ static void mvs_free(struct mvs_info *mvi)
if (mvi->flags & MVF_FLAG_SOC)
slot_nr = MVS_SOC_SLOTS;
else
- slot_nr = MVS_SLOTS;
+ slot_nr = MVS_CHIP_SLOT_SZ;
if (mvi->dma_pool)
pci_pool_destroy(mvi->dma_pool);
@@ -166,6 +165,7 @@ static void mvs_free(struct mvs_info *mvi)
scsi_host_put(mvi->shost);
list_for_each_entry(mwq, &mvi->wq_list, entry)
cancel_delayed_work(&mwq->work_q);
+ kfree(mvi->tags);
kfree(mvi);
}
@@ -232,7 +232,7 @@ static int __devinit mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
if (mvi->flags & MVF_FLAG_SOC)
slot_nr = MVS_SOC_SLOTS;
else
- slot_nr = MVS_SLOTS;
+ slot_nr = MVS_CHIP_SLOT_SZ;
spin_lock_init(&mvi->lock);
for (i = 0; i < mvi->chip->n_phy; i++) {
@@ -369,8 +369,9 @@ static struct mvs_info *__devinit mvs_pci_alloc(struct pci_dev *pdev,
struct mvs_info *mvi;
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
- mvi = kzalloc(sizeof(*mvi) + MVS_SLOTS * sizeof(struct mvs_slot_info),
- GFP_KERNEL);
+ mvi = kzalloc(sizeof(*mvi) +
+ (1L << mvs_chips[ent->driver_data].slot_width) *
+ sizeof(struct mvs_slot_info), GFP_KERNEL);
if (!mvi)
return NULL;
@@ -379,7 +380,6 @@ static struct mvs_info *__devinit mvs_pci_alloc(struct pci_dev *pdev,
mvi->chip_id = ent->driver_data;
mvi->chip = &mvs_chips[mvi->chip_id];
INIT_LIST_HEAD(&mvi->wq_list);
- mvi->irq = pdev->irq;
((struct mvs_prv_info *)sha->lldd_ha)->mvi[id] = mvi;
((struct mvs_prv_info *)sha->lldd_ha)->n_phy = mvi->chip->n_phy;
@@ -391,6 +391,10 @@ static struct mvs_info *__devinit mvs_pci_alloc(struct pci_dev *pdev,
tasklet_init(&mv_tasklet, mvs_tasklet, (unsigned long)sha);
#endif
+ mvi->tags = kzalloc(MVS_CHIP_SLOT_SZ>>3, GFP_KERNEL);
+ if (!mvi->tags)
+ goto err_out;
+
if (MVS_CHIP_DISP->chip_ioremap(mvi))
goto err_out;
if (!mvs_alloc(mvi, shost))
@@ -505,11 +509,11 @@ static void __devinit mvs_post_sas_ha_init(struct Scsi_Host *shost,
if (mvi->flags & MVF_FLAG_SOC)
can_queue = MVS_SOC_CAN_QUEUE;
else
- can_queue = MVS_CAN_QUEUE;
+ can_queue = MVS_CHIP_SLOT_SZ;
sha->lldd_queue_size = can_queue;
shost->can_queue = can_queue;
- mvi->shost->cmd_per_lun = MVS_SLOTS/sha->num_phys;
+ mvi->shost->cmd_per_lun = MVS_QUEUE_SIZE;
sha->core.shost = mvi->shost;
}
@@ -650,7 +654,7 @@ static void __devexit mvs_pci_remove(struct pci_dev *pdev)
scsi_remove_host(mvi->shost);
MVS_CHIP_DISP->interrupt_disable(mvi);
- free_irq(mvi->irq, sha);
+ free_irq(mvi->pdev->irq, sha);
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
mvs_free(mvi);
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 4585dc0..7bd0ee3 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -38,7 +38,7 @@ static int mvs_find_tag(struct mvs_info *mvi, struct sas_task *task, u32 *tag)
void mvs_tag_clear(struct mvs_info *mvi, u32 tag)
{
- void *bitmap = &mvi->tags;
+ void *bitmap = mvi->tags;
clear_bit(tag, bitmap);
}
@@ -49,14 +49,14 @@ void mvs_tag_free(struct mvs_info *mvi, u32 tag)
void mvs_tag_set(struct mvs_info *mvi, unsigned int tag)
{
- void *bitmap = &mvi->tags;
+ void *bitmap = mvi->tags;
set_bit(tag, bitmap);
}
inline int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out)
{
unsigned int index, tag;
- void *bitmap = &mvi->tags;
+ void *bitmap = mvi->tags;
index = find_first_zero_bit(bitmap, mvi->tags_num);
tag = index;
@@ -74,126 +74,6 @@ void mvs_tag_init(struct mvs_info *mvi)
mvs_tag_clear(mvi, i);
}
-void mvs_hexdump(u32 size, u8 *data, u32 baseaddr)
-{
- u32 i;
- u32 run;
- u32 offset;
-
- offset = 0;
- while (size) {
- printk(KERN_DEBUG"%08X : ", baseaddr + offset);
- if (size >= 16)
- run = 16;
- else
- run = size;
- size -= run;
- for (i = 0; i < 16; i++) {
- if (i < run)
- printk(KERN_DEBUG"%02X ", (u32)data[i]);
- else
- printk(KERN_DEBUG" ");
- }
- printk(KERN_DEBUG": ");
- for (i = 0; i < run; i++)
- printk(KERN_DEBUG"%c",
- isalnum(data[i]) ? data[i] : '.');
- printk(KERN_DEBUG"\n");
- data = &data[16];
- offset += run;
- }
- printk(KERN_DEBUG"\n");
-}
-
-#if (_MV_DUMP > 1)
-static void mvs_hba_sb_dump(struct mvs_info *mvi, u32 tag,
- enum sas_protocol proto)
-{
- u32 offset;
- struct mvs_slot_info *slot = &mvi->slot_info[tag];
-
- offset = slot->cmd_size + MVS_OAF_SZ +
- MVS_CHIP_DISP->prd_size() * slot->n_elem;
- dev_printk(KERN_DEBUG, mvi->dev, "+---->Status buffer[%d] :\n",
- tag);
- mvs_hexdump(32, (u8 *) slot->response,
- (u32) slot->buf_dma + offset);
-}
-#endif
-
-static void mvs_hba_memory_dump(struct mvs_info *mvi, u32 tag,
- enum sas_protocol proto)
-{
-#if (_MV_DUMP > 1)
- u32 sz, w_ptr;
- u64 addr;
- struct mvs_slot_info *slot = &mvi->slot_info[tag];
-
- /*Delivery Queue */
- sz = MVS_CHIP_SLOT_SZ;
- w_ptr = slot->tx;
- addr = mvi->tx_dma;
- dev_printk(KERN_DEBUG, mvi->dev,
- "Delivery Queue Size=%04d , WRT_PTR=%04X\n", sz, w_ptr);
- dev_printk(KERN_DEBUG, mvi->dev,
- "Delivery Queue Base Address=0x%llX (PA)"
- "(tx_dma=0x%llX), Entry=%04d\n",
- addr, (unsigned long long)mvi->tx_dma, w_ptr);
- mvs_hexdump(sizeof(u32), (u8 *)(&mvi->tx[mvi->tx_prod]),
- (u32) mvi->tx_dma + sizeof(u32) * w_ptr);
- /*Command List */
- addr = mvi->slot_dma;
- dev_printk(KERN_DEBUG, mvi->dev,
- "Command List Base Address=0x%llX (PA)"
- "(slot_dma=0x%llX), Header=%03d\n",
- addr, (unsigned long long)slot->buf_dma, tag);
- dev_printk(KERN_DEBUG, mvi->dev, "Command Header[%03d]:\n", tag);
- /*mvs_cmd_hdr */
- mvs_hexdump(sizeof(struct mvs_cmd_hdr), (u8 *)(&mvi->slot[tag]),
- (u32) mvi->slot_dma + tag * sizeof(struct mvs_cmd_hdr));
- /*1.command table area */
- dev_printk(KERN_DEBUG, mvi->dev, "+---->Command Table :\n");
- mvs_hexdump(slot->cmd_size, (u8 *) slot->buf, (u32) slot->buf_dma);
- /*2.open address frame area */
- dev_printk(KERN_DEBUG, mvi->dev, "+---->Open Address Frame :\n");
- mvs_hexdump(MVS_OAF_SZ, (u8 *) slot->buf + slot->cmd_size,
- (u32) slot->buf_dma + slot->cmd_size);
- /*3.status buffer */
- mvs_hba_sb_dump(mvi, tag, proto);
- /*4.PRD table */
- dev_printk(KERN_DEBUG, mvi->dev, "+---->PRD table :\n");
- mvs_hexdump(MVS_CHIP_DISP->prd_size() * slot->n_elem,
- (u8 *) slot->buf + slot->cmd_size + MVS_OAF_SZ,
- (u32) slot->buf_dma + slot->cmd_size + MVS_OAF_SZ);
-#endif
-}
-
-static void mvs_hba_cq_dump(struct mvs_info *mvi)
-{
-#if (_MV_DUMP > 2)
- u64 addr;
- void __iomem *regs = mvi->regs;
- u32 entry = mvi->rx_cons + 1;
- u32 rx_desc = le32_to_cpu(mvi->rx[entry]);
-
- /*Completion Queue */
- addr = mr32(RX_HI) << 16 << 16 | mr32(RX_LO);
- dev_printk(KERN_DEBUG, mvi->dev, "Completion Task = 0x%p\n",
- mvi->slot_info[rx_desc & RXQ_SLOT_MASK].task);
- dev_printk(KERN_DEBUG, mvi->dev,
- "Completion List Base Address=0x%llX (PA), "
- "CQ_Entry=%04d, CQ_WP=0x%08X\n",
- addr, entry - 1, mvi->rx[0]);
- mvs_hexdump(sizeof(u32), (u8 *)(&rx_desc),
- mvi->rx_dma + sizeof(u32) * entry);
-#endif
-}
-
-void mvs_get_sas_addr(void *buf, u32 buflen)
-{
- /*memcpy(buf, "\x50\x05\x04\x30\x11\xab\x64\x40", 8);*/
-}
-
struct mvs_info *mvs_find_dev_mvi(struct domain_device *dev)
{
unsigned long i = 0, j = 0, hi = 0;
@@ -421,13 +301,6 @@ int mvs_slave_configure(struct scsi_device *sdev)
if (ret)
return ret;
if (dev_is_sata(dev)) {
- /* may set PIO mode */
- #if MV_DISABLE_NCQ
- struct ata_port *ap = dev->sata_dev.ap;
- struct ata_device *adev = ap->link.device;
- adev->flags |= ATA_DFLAG_NCQ_OFF;
- scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, 1);
- #endif
}
return 0;
}
@@ -475,10 +348,7 @@ static int mvs_task_prep_smp(struct mvs_info *mvi,
void *buf_prd;
struct mvs_slot_info *slot = &mvi->slot_info[tag];
u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);
-#if _MV_DUMP
- u8 *buf_cmd;
- void *from;
-#endif
+
/*
* DMA-map SMP request, response buffers
*/
@@ -510,15 +380,7 @@ static int mvs_task_prep_smp(struct mvs_info *mvi,
buf_tmp = slot->buf;
buf_tmp_dma = slot->buf_dma;
-#if _MV_DUMP
- buf_cmd = buf_tmp;
- hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma);
- buf_tmp += req_len;
- buf_tmp_dma += req_len;
- slot->cmd_size = req_len;
-#else
hdr->cmd_tbl = cpu_to_le64(sg_dma_address(sg_req));
-#endif
/* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
buf_oaf = buf_tmp;
@@ -567,12 +429,6 @@ static int mvs_task_prep_smp(struct mvs_info *mvi,
/* fill in PRD (scatter/gather) table, if any */
MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd);
-#if _MV_DUMP
- /* copy cmd table */
- from = kmap_atomic(sg_page(sg_req), KM_IRQ0);
- memcpy(buf_cmd, from + sg_req->offset, req_len);
- kunmap_atomic(from, KM_IRQ0);
-#endif
return 0;
err_out_2:
@@ -668,9 +524,6 @@ static int mvs_task_prep_ata(struct mvs_info *mvi,
buf_tmp += MVS_ATA_CMD_SZ;
buf_tmp_dma += MVS_ATA_CMD_SZ;
-#if _MV_DUMP
- slot->cmd_size = MVS_ATA_CMD_SZ;
-#endif
/* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
/* used for STP. unused for SATA? */
@@ -788,9 +641,6 @@ static int mvs_task_prep_ssp(struct mvs_info *mvi,
buf_tmp += MVS_SSP_CMD_SZ;
buf_tmp_dma += MVS_SSP_CMD_SZ;
-#if _MV_DUMP
- slot->cmd_size = MVS_SSP_CMD_SZ;
-#endif
/* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
buf_oaf = buf_tmp;
@@ -997,7 +847,6 @@ static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf
task->task_state_flags |= SAS_TASK_AT_INITIATOR;
spin_unlock(&task->task_state_lock);
- mvs_hba_memory_dump(mvi, tag, task->task_proto);
mvi_dev->running_req++;
++(*pass);
mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1);
@@ -1963,8 +1812,6 @@ int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags)
void *to;
enum exec_status sts;
- if (mvi->exp_req)
- mvi->exp_req--;
if (unlikely(!task || !task->lldd_task || !task->dev))
return -1;
@@ -1972,8 +1819,6 @@ int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags)
dev = task->dev;
mvi_dev = dev->lldd_dev;
- mvs_hba_cq_dump(mvi);
-
spin_lock(&task->task_state_lock);
task->task_state_flags &=
~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h
index 3399ff1..7abfa2d 100644
--- a/drivers/scsi/mvsas/mv_sas.h
+++ b/drivers/scsi/mvsas/mv_sas.h
@@ -48,12 +48,8 @@
#define DRV_NAME "mvsas"
#define DRV_VERSION "0.8.2"
-#define _MV_DUMP 0
#define MVS_ID_NOT_MAPPED 0x7f
-/* #define DISABLE_HOTPLUG_DMA_FIX */
-// #define MAX_EXP_RUNNING_REQ 2
#define WIDE_PORT_MAX_PHY 4
-#define MV_DISABLE_NCQ 0
#define mv_printk(fmt, arg ...) \
printk(KERN_DEBUG"%s %d:" fmt, __FILE__, __LINE__, ## arg)
#ifdef MV_DEBUG
@@ -131,7 +127,6 @@ struct mvs_dispatch {
u32 (*read_port_irq_mask)(struct mvs_info *mvi, u32 port);
void (*write_port_irq_mask)(struct mvs_info *mvi, u32 port, u32 val);
- void (*get_sas_addr)(void *buf, u32 buflen);
void (*command_active)(struct mvs_info *mvi, u32 slot_idx);
void (*clear_srs_irq)(struct mvs_info *mvi, u8 reg_set, u8 clear_all);
void (*issue_stop)(struct mvs_info *mvi, enum mvs_port_type type,
@@ -333,9 +328,6 @@ struct mvs_slot_info {
*/
void *buf;
dma_addr_t buf_dma;
-#if _MV_DUMP
- u32 cmd_size;
-#endif
void *response;
struct mvs_port *port;
struct mvs_device *device;
@@ -389,12 +381,10 @@ struct mvs_info {
const struct mvs_chip_info *chip;
int tags_num;
- DECLARE_BITMAP(tags, MVS_SLOTS);
+ unsigned long *tags;
/* further per-slot information */
struct mvs_phy phy[MVS_MAX_PHYS];
struct mvs_port port[MVS_MAX_PHYS];
- u32 irq;
- u32 exp_req;
u32 id;
u64 sata_reg_set;
struct list_head *hba_list;
@@ -485,7 +475,6 @@ void mvs_do_release_task(struct mvs_info *mvi, int phy_no,
void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events);
void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st);
int mvs_int_rx(struct mvs_info *mvi, bool self_clear);
-void mvs_hexdump(u32 size, u8 *data, u32 baseaddr);
struct mvs_device *mvs_find_dev_by_reg_set(struct mvs_info *mvi, u8 reg_set);
#endif
--
1.7.4.4
--
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