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path: root/drivers/scsi/mvsas/mv_init.c
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Diffstat (limited to 'drivers/scsi/mvsas/mv_init.c')
-rw-r--r--drivers/scsi/mvsas/mv_init.c309
1 files changed, 236 insertions, 73 deletions
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 19ad34f381a..eacee48a955 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -3,6 +3,7 @@
*
* Copyright 2007 Red Hat, Inc.
* Copyright 2008 Marvell. <kewei@marvell.com>
+ * Copyright 2009-2011 Marvell. <yuxiangl@marvell.com>
*
* This file is licensed under GPLv2.
*
@@ -25,27 +26,40 @@
#include "mv_sas.h"
+static int lldd_max_execute_num = 1;
+module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
+MODULE_PARM_DESC(collector, "\n"
+ "\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
+ "\tMode. If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
+ "\tThe mvsas SAS LLDD supports both modes.\n"
+ "\tDefault: 1 (Direct Mode).\n");
+
+int interrupt_coalescing = 0x80;
+
static struct scsi_transport_template *mvs_stt;
+struct kmem_cache *mvs_task_list_cache;
static const struct mvs_chip_info mvs_chips[] = {
- [chip_6320] = { 1, 2, 0x400, 17, 16, 9, &mvs_64xx_dispatch, },
- [chip_6440] = { 1, 4, 0x400, 17, 16, 9, &mvs_64xx_dispatch, },
- [chip_6485] = { 1, 8, 0x800, 33, 32, 10, &mvs_64xx_dispatch, },
- [chip_9180] = { 2, 4, 0x800, 17, 64, 9, &mvs_94xx_dispatch, },
- [chip_9480] = { 2, 4, 0x800, 17, 64, 9, &mvs_94xx_dispatch, },
- [chip_1300] = { 1, 4, 0x400, 17, 16, 9, &mvs_64xx_dispatch, },
- [chip_1320] = { 2, 4, 0x800, 17, 64, 9, &mvs_94xx_dispatch, },
+ [chip_6320] = { 1, 2, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
+ [chip_6440] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
+ [chip_6485] = { 1, 8, 0x800, 33, 32, 6, 10, &mvs_64xx_dispatch, },
+ [chip_9180] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
+ [chip_9480] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
+ [chip_9445] = { 1, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
+ [chip_9485] = { 2, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
+ [chip_1300] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
+ [chip_1320] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
};
+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,
.name = DRV_NAME,
.queuecommand = sas_queuecommand,
.target_alloc = sas_target_alloc,
- .slave_configure = mvs_slave_configure,
- .slave_destroy = sas_slave_destroy,
+ .slave_configure = sas_slave_configure,
.scan_finished = mvs_scan_finished,
.scan_start = mvs_scan_start,
.change_queue_depth = sas_change_queue_depth,
@@ -54,14 +68,14 @@ 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,
.eh_bus_reset_handler = sas_eh_bus_reset_handler,
- .slave_alloc = mvs_slave_alloc,
.target_destroy = sas_target_destroy,
.ioctl = sas_ioctl,
+ .shost_attrs = mvst_host_attrs,
};
static struct sas_domain_function_template mvs_transport_ops = {
@@ -82,12 +96,13 @@ static struct sas_domain_function_template mvs_transport_ops = {
};
-static void __devinit mvs_phy_init(struct mvs_info *mvi, int phy_id)
+static void mvs_phy_init(struct mvs_info *mvi, int phy_id)
{
struct mvs_phy *phy = &mvi->phy[phy_id];
struct asd_sas_phy *sas_phy = &phy->sas_phy;
phy->mvi = mvi;
+ phy->port = NULL;
init_timer(&phy->timer);
sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
sas_phy->class = SAS;
@@ -107,7 +122,6 @@ static void __devinit mvs_phy_init(struct mvs_info *mvi, int phy_id)
static void mvs_free(struct mvs_info *mvi)
{
- int i;
struct mvs_wq *mwq;
int slot_nr;
@@ -117,14 +131,10 @@ 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;
- for (i = 0; i < mvi->tags_num; i++) {
- struct mvs_slot_info *slot = &mvi->slot_info[i];
- if (slot->buf)
- dma_free_coherent(mvi->dev, MVS_SLOT_BUF_SZ,
- slot->buf, slot->buf_dma);
- }
+ if (mvi->dma_pool)
+ pci_pool_destroy(mvi->dma_pool);
if (mvi->tx)
dma_free_coherent(mvi->dev,
@@ -141,25 +151,26 @@ 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)
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);
}
-#ifdef MVS_USE_TASKLET
-struct tasklet_struct mv_tasklet;
+#ifdef CONFIG_SCSI_MVSAS_TASKLET
static void mvs_tasklet(unsigned long opaque)
{
- unsigned long flags;
u32 stat;
u16 core_nr, i = 0;
@@ -172,35 +183,49 @@ static void mvs_tasklet(unsigned long opaque)
if (unlikely(!mvi))
BUG_ON(1);
+ stat = MVS_CHIP_DISP->isr_status(mvi, mvi->pdev->irq);
+ if (!stat)
+ goto out;
+
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
- stat = MVS_CHIP_DISP->isr_status(mvi, mvi->irq);
- if (stat)
- MVS_CHIP_DISP->isr(mvi, mvi->irq, stat);
+ MVS_CHIP_DISP->isr(mvi, mvi->pdev->irq, stat);
}
+out:
+ MVS_CHIP_DISP->interrupt_enable(mvi);
}
#endif
static irqreturn_t mvs_interrupt(int irq, void *opaque)
{
- u32 core_nr, i = 0;
+ u32 core_nr;
u32 stat;
struct mvs_info *mvi;
struct sas_ha_struct *sha = opaque;
+#ifndef CONFIG_SCSI_MVSAS_TASKLET
+ u32 i;
+#endif
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
if (unlikely(!mvi))
return IRQ_NONE;
+#ifdef CONFIG_SCSI_MVSAS_TASKLET
+ MVS_CHIP_DISP->interrupt_disable(mvi);
+#endif
stat = MVS_CHIP_DISP->isr_status(mvi, irq);
- if (!stat)
+ if (!stat) {
+ #ifdef CONFIG_SCSI_MVSAS_TASKLET
+ MVS_CHIP_DISP->interrupt_enable(mvi);
+ #endif
return IRQ_NONE;
+ }
-#ifdef MVS_USE_TASKLET
- tasklet_schedule(&mv_tasklet);
+#ifdef CONFIG_SCSI_MVSAS_TASKLET
+ tasklet_schedule(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
#else
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
@@ -210,14 +235,15 @@ static irqreturn_t mvs_interrupt(int irq, void *opaque)
return IRQ_HANDLED;
}
-static int __devinit mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
+static int mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
{
int i = 0, slot_nr;
+ char pool_name[32];
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++) {
@@ -228,7 +254,7 @@ static int __devinit mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
}
for (i = 0; i < MVS_MAX_DEVICES; i++) {
mvi->devices[i].taskfileset = MVS_ID_NOT_MAPPED;
- mvi->devices[i].dev_type = NO_DEVICE;
+ mvi->devices[i].dev_type = SAS_PHY_UNUSED;
mvi->devices[i].device_id = i;
mvi->devices[i].dev_status = MVS_DEV_NORMAL;
init_timer(&mvi->devices[i].timer);
@@ -265,25 +291,26 @@ 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
- for (i = 0; i < slot_nr; i++) {
- struct mvs_slot_info *slot = &mvi->slot_info[i];
- slot->buf = dma_alloc_coherent(mvi->dev, MVS_SLOT_BUF_SZ,
- &slot->buf_dma, GFP_KERNEL);
- if (!slot->buf) {
- printk(KERN_DEBUG"failed to allocate slot->buf.\n");
+ 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) {
+ printk(KERN_DEBUG "failed to create dma pool %s.\n", pool_name);
goto err_out;
- }
- memset(slot->buf, 0, MVS_SLOT_BUF_SZ);
- ++mvi->tags_num;
}
+ mvi->tags_num = slot_nr;
+
/* Initialize tags */
mvs_tag_init(mvi);
return 0;
@@ -346,15 +373,16 @@ void mvs_iounmap(void __iomem *regs)
iounmap(regs);
}
-static struct mvs_info *__devinit mvs_pci_alloc(struct pci_dev *pdev,
+static struct mvs_info *mvs_pci_alloc(struct pci_dev *pdev,
const struct pci_device_id *ent,
struct Scsi_Host *shost, unsigned int id)
{
- struct mvs_info *mvi;
+ struct mvs_info *mvi = NULL;
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;
@@ -363,7 +391,6 @@ 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;
@@ -371,9 +398,10 @@ static struct mvs_info *__devinit mvs_pci_alloc(struct pci_dev *pdev,
mvi->id = id;
mvi->sas = sha;
mvi->shost = shost;
-#ifdef MVS_USE_TASKLET
- 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;
@@ -384,7 +412,6 @@ err_out:
return NULL;
}
-/* move to PCI layer or libata core? */
static int pci_go_64(struct pci_dev *pdev)
{
int rc;
@@ -417,7 +444,7 @@ static int pci_go_64(struct pci_dev *pdev)
return rc;
}
-static int __devinit mvs_prep_sas_ha_init(struct Scsi_Host *shost,
+static int mvs_prep_sas_ha_init(struct Scsi_Host *shost,
const struct mvs_chip_info *chip_info)
{
int phy_nr, port_nr; unsigned short core_nr;
@@ -446,7 +473,7 @@ static int __devinit mvs_prep_sas_ha_init(struct Scsi_Host *shost,
((struct mvs_prv_info *)sha->lldd_ha)->n_host = core_nr;
shost->transportt = mvs_stt;
- shost->max_id = 128;
+ shost->max_id = MVS_MAX_DEVICES;
shost->max_lun = ~0;
shost->max_channel = 1;
shost->max_cmd_len = 16;
@@ -459,7 +486,7 @@ exit_free:
}
-static void __devinit mvs_post_sas_ha_init(struct Scsi_Host *shost,
+static void mvs_post_sas_ha_init(struct Scsi_Host *shost,
const struct mvs_chip_info *chip_info)
{
int can_queue, i = 0, j = 0;
@@ -484,16 +511,17 @@ static void __devinit mvs_post_sas_ha_init(struct Scsi_Host *shost,
sha->num_phys = nr_core * chip_info->n_phy;
- sha->lldd_max_execute_num = 1;
+ sha->lldd_max_execute_num = lldd_max_execute_num;
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->sg_tablesize = min_t(u16, SG_ALL, MVS_MAX_SG);
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;
}
@@ -509,11 +537,11 @@ static void mvs_init_sas_add(struct mvs_info *mvi)
memcpy(mvi->sas_addr, &mvi->phy[0].dev_sas_addr, SAS_ADDR_SIZE);
}
-static int __devinit mvs_pci_init(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+static int mvs_pci_init(struct pci_dev *pdev, const struct pci_device_id *ent)
{
unsigned int rc, nhost = 0;
struct mvs_info *mvi;
+ struct mvs_prv_info *mpi;
irq_handler_t irq_handler = mvs_interrupt;
struct Scsi_Host *shost = NULL;
const struct mvs_chip_info *chip;
@@ -565,6 +593,9 @@ static int __devinit mvs_pci_init(struct pci_dev *pdev,
goto err_out_regions;
}
+ memset(&mvi->hba_info_param, 0xFF,
+ sizeof(struct hba_info_page));
+
mvs_init_sas_add(mvi);
mvi->instance = nhost;
@@ -575,8 +606,9 @@ static int __devinit mvs_pci_init(struct pci_dev *pdev,
}
nhost++;
} while (nhost < chip->n_host);
-#ifdef MVS_USE_TASKLET
- tasklet_init(&mv_tasklet, mvs_tasklet,
+ mpi = (struct mvs_prv_info *)(SHOST_TO_SAS_HA(shost)->lldd_ha);
+#ifdef CONFIG_SCSI_MVSAS_TASKLET
+ tasklet_init(&(mpi->mv_tasklet), mvs_tasklet,
(unsigned long)SHOST_TO_SAS_HA(shost));
#endif
@@ -612,7 +644,7 @@ err_out_enable:
return rc;
}
-static void __devexit mvs_pci_remove(struct pci_dev *pdev)
+static void mvs_pci_remove(struct pci_dev *pdev)
{
unsigned short core_nr, i = 0;
struct sas_ha_struct *sha = pci_get_drvdata(pdev);
@@ -621,17 +653,16 @@ static void __devexit mvs_pci_remove(struct pci_dev *pdev)
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
-#ifdef MVS_USE_TASKLET
- tasklet_kill(&mv_tasklet);
+#ifdef CONFIG_SCSI_MVSAS_TASKLET
+ tasklet_kill(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
#endif
- pci_set_drvdata(pdev, NULL);
sas_unregister_ha(sha);
sas_remove_host(mvi->shost);
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);
@@ -644,7 +675,7 @@ static void __devexit mvs_pci_remove(struct pci_dev *pdev)
return;
}
-static struct pci_device_id __devinitdata mvs_pci_table[] = {
+static struct pci_device_id mvs_pci_table[] = {
{ PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
{ PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
{
@@ -663,6 +694,59 @@ static struct pci_device_id __devinitdata mvs_pci_table[] = {
{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 },
{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 },
{ PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 },
+ { PCI_VDEVICE(TTI, 0x2710), chip_9480 },
+ { PCI_VDEVICE(TTI, 0x2720), chip_9480 },
+ { PCI_VDEVICE(TTI, 0x2721), chip_9480 },
+ { PCI_VDEVICE(TTI, 0x2722), chip_9480 },
+ { PCI_VDEVICE(TTI, 0x2740), chip_9480 },
+ { PCI_VDEVICE(TTI, 0x2744), chip_9480 },
+ { PCI_VDEVICE(TTI, 0x2760), chip_9480 },
+ {
+ .vendor = PCI_VENDOR_ID_MARVELL_EXT,
+ .device = 0x9480,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = 0x9480,
+ .class = 0,
+ .class_mask = 0,
+ .driver_data = chip_9480,
+ },
+ {
+ .vendor = PCI_VENDOR_ID_MARVELL_EXT,
+ .device = 0x9445,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = 0x9480,
+ .class = 0,
+ .class_mask = 0,
+ .driver_data = chip_9445,
+ },
+ {
+ .vendor = PCI_VENDOR_ID_MARVELL_EXT,
+ .device = 0x9485,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = 0x9480,
+ .class = 0,
+ .class_mask = 0,
+ .driver_data = chip_9485,
+ },
+ {
+ .vendor = PCI_VENDOR_ID_MARVELL_EXT,
+ .device = 0x9485,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = 0x9485,
+ .class = 0,
+ .class_mask = 0,
+ .driver_data = chip_9485,
+ },
+ { PCI_VDEVICE(OCZ, 0x1021), chip_9485}, /* OCZ RevoDrive3 */
+ { PCI_VDEVICE(OCZ, 0x1022), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
+ { PCI_VDEVICE(OCZ, 0x1040), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
+ { PCI_VDEVICE(OCZ, 0x1041), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
+ { PCI_VDEVICE(OCZ, 0x1042), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
+ { PCI_VDEVICE(OCZ, 0x1043), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
+ { PCI_VDEVICE(OCZ, 0x1044), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
+ { PCI_VDEVICE(OCZ, 0x1080), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
+ { PCI_VDEVICE(OCZ, 0x1083), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
+ { PCI_VDEVICE(OCZ, 0x1084), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ } /* terminate list */
};
@@ -671,9 +755,73 @@ static struct pci_driver mvs_pci_driver = {
.name = DRV_NAME,
.id_table = mvs_pci_table,
.probe = mvs_pci_init,
- .remove = __devexit_p(mvs_pci_remove),
+ .remove = mvs_pci_remove,
};
+static ssize_t
+mvs_show_driver_version(struct device *cdev,
+ struct device_attribute *attr, char *buffer)
+{
+ return snprintf(buffer, PAGE_SIZE, "%s\n", DRV_VERSION);
+}
+
+static DEVICE_ATTR(driver_version,
+ S_IRUGO,
+ mvs_show_driver_version,
+ NULL);
+
+static ssize_t
+mvs_store_interrupt_coalescing(struct device *cdev,
+ struct device_attribute *attr,
+ const char *buffer, size_t size)
+{
+ int val = 0;
+ struct mvs_info *mvi = NULL;
+ struct Scsi_Host *shost = class_to_shost(cdev);
+ struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
+ u8 i, core_nr;
+ if (buffer == NULL)
+ return size;
+
+ if (sscanf(buffer, "%d", &val) != 1)
+ return -EINVAL;
+
+ if (val >= 0x10000) {
+ mv_dprintk("interrupt coalescing timer %d us is"
+ "too long\n", val);
+ return strlen(buffer);
+ }
+
+ interrupt_coalescing = val;
+
+ core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
+ mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
+
+ if (unlikely(!mvi))
+ return -EINVAL;
+
+ for (i = 0; i < core_nr; i++) {
+ mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
+ if (MVS_CHIP_DISP->tune_interrupt)
+ MVS_CHIP_DISP->tune_interrupt(mvi,
+ interrupt_coalescing);
+ }
+ mv_dprintk("set interrupt coalescing time to %d us\n",
+ interrupt_coalescing);
+ return strlen(buffer);
+}
+
+static ssize_t mvs_show_interrupt_coalescing(struct device *cdev,
+ struct device_attribute *attr, char *buffer)
+{
+ return snprintf(buffer, PAGE_SIZE, "%d\n", interrupt_coalescing);
+}
+
+static DEVICE_ATTR(interrupt_coalescing,
+ S_IRUGO|S_IWUSR,
+ mvs_show_interrupt_coalescing,
+ mvs_store_interrupt_coalescing);
+
/* task handler */
struct task_struct *mvs_th;
static int __init mvs_init(void)
@@ -683,6 +831,14 @@ static int __init mvs_init(void)
if (!mvs_stt)
return -ENOMEM;
+ mvs_task_list_cache = kmem_cache_create("mvs_task_list", sizeof(struct mvs_task_list),
+ 0, SLAB_HWCACHE_ALIGN, NULL);
+ if (!mvs_task_list_cache) {
+ rc = -ENOMEM;
+ mv_printk("%s: mvs_task_list_cache alloc failed! \n", __func__);
+ goto err_out;
+ }
+
rc = pci_register_driver(&mvs_pci_driver);
if (rc)
@@ -699,8 +855,15 @@ static void __exit mvs_exit(void)
{
pci_unregister_driver(&mvs_pci_driver);
sas_release_transport(mvs_stt);
+ kmem_cache_destroy(mvs_task_list_cache);
}
+struct device_attribute *mvst_host_attrs[] = {
+ &dev_attr_driver_version,
+ &dev_attr_interrupt_coalescing,
+ NULL,
+};
+
module_init(mvs_init);
module_exit(mvs_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 01:43:19 +0000