summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/hpsa.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/hpsa.c')
-rw-r--r--drivers/scsi/hpsa.c793
1 files changed, 571 insertions, 222 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index bb96fdd58e23..03697ba94251 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -52,7 +52,7 @@
#include "hpsa.h"
/* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' */
-#define HPSA_DRIVER_VERSION "1.0.0"
+#define HPSA_DRIVER_VERSION "2.0.1-3"
#define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")"
/* How long to wait (in milliseconds) for board to go into simple mode */
@@ -77,9 +77,6 @@ MODULE_PARM_DESC(hpsa_allow_any,
/* define the PCI info for the cards we can control */
static const struct pci_device_id hpsa_pci_device_id[] = {
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3223},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3234},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x323D},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3241},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3243},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3245},
@@ -87,6 +84,9 @@ static const struct pci_device_id hpsa_pci_device_id[] = {
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3249},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324a},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324b},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3233},
+#define PCI_DEVICE_ID_HP_CISSF 0x333f
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x333F},
{PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
{0,}
@@ -99,9 +99,6 @@ MODULE_DEVICE_TABLE(pci, hpsa_pci_device_id);
* access = Address of the struct of function pointers
*/
static struct board_type products[] = {
- {0x3223103C, "Smart Array P800", &SA5_access},
- {0x3234103C, "Smart Array P400", &SA5_access},
- {0x323d103c, "Smart Array P700M", &SA5_access},
{0x3241103C, "Smart Array P212", &SA5_access},
{0x3243103C, "Smart Array P410", &SA5_access},
{0x3245103C, "Smart Array P410i", &SA5_access},
@@ -109,6 +106,8 @@ static struct board_type products[] = {
{0x3249103C, "Smart Array P812", &SA5_access},
{0x324a103C, "Smart Array P712m", &SA5_access},
{0x324b103C, "Smart Array P711m", &SA5_access},
+ {0x3233103C, "StorageWorks P1210m", &SA5_access},
+ {0x333F103C, "StorageWorks P1210m", &SA5_access},
{0xFFFF103C, "Unknown Smart Array", &SA5_access},
};
@@ -126,12 +125,15 @@ static void cmd_free(struct ctlr_info *h, struct CommandList *c);
static void cmd_special_free(struct ctlr_info *h, struct CommandList *c);
static struct CommandList *cmd_alloc(struct ctlr_info *h);
static struct CommandList *cmd_special_alloc(struct ctlr_info *h);
-static void fill_cmd(struct CommandList *c, __u8 cmd, struct ctlr_info *h,
- void *buff, size_t size, __u8 page_code, unsigned char *scsi3addr,
+static void fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
+ void *buff, size_t size, u8 page_code, unsigned char *scsi3addr,
int cmd_type);
static int hpsa_scsi_queue_command(struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *));
+static void hpsa_scan_start(struct Scsi_Host *);
+static int hpsa_scan_finished(struct Scsi_Host *sh,
+ unsigned long elapsed_time);
static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd);
static int hpsa_slave_alloc(struct scsi_device *sdev);
@@ -150,6 +152,11 @@ static int check_for_unit_attention(struct ctlr_info *h,
struct CommandList *c);
static void check_ioctl_unit_attention(struct ctlr_info *h,
struct CommandList *c);
+/* performant mode helper functions */
+static void calc_bucket_map(int *bucket, int num_buckets,
+ int nsgs, int *bucket_map);
+static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h);
+static inline u32 next_command(struct ctlr_info *h);
static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
@@ -173,10 +180,10 @@ static struct scsi_host_template hpsa_driver_template = {
.name = "hpsa",
.proc_name = "hpsa",
.queuecommand = hpsa_scsi_queue_command,
- .can_queue = 512,
+ .scan_start = hpsa_scan_start,
+ .scan_finished = hpsa_scan_finished,
.this_id = -1,
.sg_tablesize = MAXSGENTRIES,
- .cmd_per_lun = 512,
.use_clustering = ENABLE_CLUSTERING,
.eh_device_reset_handler = hpsa_eh_device_reset_handler,
.ioctl = hpsa_ioctl,
@@ -195,6 +202,12 @@ static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
return (struct ctlr_info *) *priv;
}
+static inline struct ctlr_info *shost_to_hba(struct Scsi_Host *sh)
+{
+ unsigned long *priv = shost_priv(sh);
+ return (struct ctlr_info *) *priv;
+}
+
static struct task_struct *hpsa_scan_thread;
static DEFINE_MUTEX(hpsa_scan_mutex);
static LIST_HEAD(hpsa_scan_q);
@@ -312,7 +325,7 @@ static int hpsa_scan_func(__attribute__((unused)) void *data)
h->busy_scanning = 1;
mutex_unlock(&hpsa_scan_mutex);
host_no = h->scsi_host ? h->scsi_host->host_no : -1;
- hpsa_update_scsi_devices(h, host_no);
+ hpsa_scan_start(h->scsi_host);
complete_all(&h->scan_wait);
mutex_lock(&hpsa_scan_mutex);
h->busy_scanning = 0;
@@ -379,8 +392,7 @@ static ssize_t host_store_rescan(struct device *dev,
{
struct ctlr_info *h;
struct Scsi_Host *shost = class_to_shost(dev);
- unsigned long *priv = shost_priv(shost);
- h = (struct ctlr_info *) *priv;
+ h = shost_to_hba(shost);
if (add_to_scan_list(h)) {
wake_up_process(hpsa_scan_thread);
wait_for_completion_interruptible(&h->scan_wait);
@@ -394,10 +406,44 @@ static inline void addQ(struct hlist_head *list, struct CommandList *c)
hlist_add_head(&c->list, list);
}
+static inline u32 next_command(struct ctlr_info *h)
+{
+ u32 a;
+
+ if (unlikely(h->transMethod != CFGTBL_Trans_Performant))
+ return h->access.command_completed(h);
+
+ if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
+ a = *(h->reply_pool_head); /* Next cmd in ring buffer */
+ (h->reply_pool_head)++;
+ h->commands_outstanding--;
+ } else {
+ a = FIFO_EMPTY;
+ }
+ /* Check for wraparound */
+ if (h->reply_pool_head == (h->reply_pool + h->max_commands)) {
+ h->reply_pool_head = h->reply_pool;
+ h->reply_pool_wraparound ^= 1;
+ }
+ return a;
+}
+
+/* set_performant_mode: Modify the tag for cciss performant
+ * set bit 0 for pull model, bits 3-1 for block fetch
+ * register number
+ */
+static void set_performant_mode(struct ctlr_info *h, struct CommandList *c)
+{
+ if (likely(h->transMethod == CFGTBL_Trans_Performant))
+ c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
+}
+
static void enqueue_cmd_and_start_io(struct ctlr_info *h,
struct CommandList *c)
{
unsigned long flags;
+
+ set_performant_mode(h, c);
spin_lock_irqsave(&h->lock, flags);
addQ(&h->reqQ, c);
h->Qdepth++;
@@ -422,6 +468,15 @@ static inline int is_logical_dev_addr_mode(unsigned char scsi3addr[])
return (scsi3addr[3] & 0xC0) == 0x40;
}
+static inline int is_scsi_rev_5(struct ctlr_info *h)
+{
+ if (!h->hba_inquiry_data)
+ return 0;
+ if ((h->hba_inquiry_data[2] & 0x07) == 5)
+ return 1;
+ return 0;
+}
+
static const char *raid_label[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG",
"UNKNOWN"
};
@@ -431,7 +486,7 @@ static ssize_t raid_level_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t l = 0;
- int rlevel;
+ unsigned char rlevel;
struct ctlr_info *h;
struct scsi_device *sdev;
struct hpsa_scsi_dev_t *hdev;
@@ -455,7 +510,7 @@ static ssize_t raid_level_show(struct device *dev,
rlevel = hdev->raid_level;
spin_unlock_irqrestore(&h->lock, flags);
- if (rlevel < 0 || rlevel > RAID_UNKNOWN)
+ if (rlevel > RAID_UNKNOWN)
rlevel = RAID_UNKNOWN;
l = snprintf(buf, PAGE_SIZE, "RAID %s\n", raid_label[rlevel]);
return l;
@@ -620,6 +675,24 @@ lun_assigned:
return 0;
}
+/* Replace an entry from h->dev[] array. */
+static void hpsa_scsi_replace_entry(struct ctlr_info *h, int hostno,
+ int entry, struct hpsa_scsi_dev_t *new_entry,
+ struct hpsa_scsi_dev_t *added[], int *nadded,
+ struct hpsa_scsi_dev_t *removed[], int *nremoved)
+{
+ /* assumes h->devlock is held */
+ BUG_ON(entry < 0 || entry >= HPSA_MAX_SCSI_DEVS_PER_HBA);
+ removed[*nremoved] = h->dev[entry];
+ (*nremoved)++;
+ h->dev[entry] = new_entry;
+ added[*nadded] = new_entry;
+ (*nadded)++;
+ dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d changed.\n",
+ scsi_device_type(new_entry->devtype), hostno, new_entry->bus,
+ new_entry->target, new_entry->lun);
+}
+
/* Remove an entry from h->dev[] array. */
static void hpsa_scsi_remove_entry(struct ctlr_info *h, int hostno, int entry,
struct hpsa_scsi_dev_t *removed[], int *nremoved)
@@ -628,8 +701,7 @@ static void hpsa_scsi_remove_entry(struct ctlr_info *h, int hostno, int entry,
int i;
struct hpsa_scsi_dev_t *sd;
- if (entry < 0 || entry >= HPSA_MAX_SCSI_DEVS_PER_HBA)
- BUG();
+ BUG_ON(entry < 0 || entry >= HPSA_MAX_SCSI_DEVS_PER_HBA);
sd = h->dev[entry];
removed[*nremoved] = h->dev[entry];
@@ -722,6 +794,8 @@ static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t *needle,
#define DEVICE_CHANGED 1
#define DEVICE_SAME 2
for (i = 0; i < haystack_size; i++) {
+ if (haystack[i] == NULL) /* previously removed. */
+ continue;
if (SCSI3ADDR_EQ(needle->scsi3addr, haystack[i]->scsi3addr)) {
*index = i;
if (device_is_the_same(needle, haystack[i]))
@@ -734,7 +808,7 @@ static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t *needle,
return DEVICE_NOT_FOUND;
}
-static int adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno,
+static void adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno,
struct hpsa_scsi_dev_t *sd[], int nsds)
{
/* sd contains scsi3 addresses and devtypes, and inquiry
@@ -779,12 +853,12 @@ static int adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno,
continue; /* remove ^^^, hence i not incremented */
} else if (device_change == DEVICE_CHANGED) {
changes++;
- hpsa_scsi_remove_entry(h, hostno, i,
- removed, &nremoved);
- (void) hpsa_scsi_add_entry(h, hostno, sd[entry],
- added, &nadded);
- /* add can't fail, we just removed one. */
- sd[entry] = NULL; /* prevent it from being freed */
+ hpsa_scsi_replace_entry(h, hostno, i, sd[entry],
+ added, &nadded, removed, &nremoved);
+ /* Set it to NULL to prevent it from being freed
+ * at the bottom of hpsa_update_scsi_devices()
+ */
+ sd[entry] = NULL;
}
i++;
}
@@ -860,7 +934,6 @@ static int adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno,
free_and_out:
kfree(added);
kfree(removed);
- return 0;
}
/*
@@ -900,7 +973,7 @@ static int hpsa_slave_alloc(struct scsi_device *sdev)
static void hpsa_slave_destroy(struct scsi_device *sdev)
{
- return; /* nothing to do. */
+ /* nothing to do. */
}
static void hpsa_scsi_setup(struct ctlr_info *h)
@@ -908,11 +981,10 @@ static void hpsa_scsi_setup(struct ctlr_info *h)
h->ndevices = 0;
h->scsi_host = NULL;
spin_lock_init(&h->devlock);
- return;
}
static void complete_scsi_command(struct CommandList *cp,
- int timeout, __u32 tag)
+ int timeout, u32 tag)
{
struct scsi_cmnd *cmd;
struct ctlr_info *h;
@@ -987,7 +1059,6 @@ static void complete_scsi_command(struct CommandList *cp,
* required
*/
if ((asc == 0x04) && (ascq == 0x03)) {
- cmd->result = DID_NO_CONNECT << 16;
dev_warn(&h->pdev->dev, "cp %p "
"has check condition: unit "
"not ready, manual "
@@ -995,14 +1066,22 @@ static void complete_scsi_command(struct CommandList *cp,
break;
}
}
-
-
+ if (sense_key == ABORTED_COMMAND) {
+ /* Aborted command is retryable */
+ dev_warn(&h->pdev->dev, "cp %p "
+ "has check condition: aborted command: "
+ "ASC: 0x%x, ASCQ: 0x%x\n",
+ cp, asc, ascq);
+ cmd->result = DID_SOFT_ERROR << 16;
+ break;
+ }
/* Must be some other type of check condition */
dev_warn(&h->pdev->dev, "cp %p has check condition: "
"unknown type: "
"Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
"Returning result: 0x%x, "
"cmd=[%02x %02x %02x %02x %02x "
+ "%02x %02x %02x %02x %02x %02x "
"%02x %02x %02x %02x %02x]\n",
cp, sense_key, asc, ascq,
cmd->result,
@@ -1010,7 +1089,10 @@ static void complete_scsi_command(struct CommandList *cp,
cmd->cmnd[2], cmd->cmnd[3],
cmd->cmnd[4], cmd->cmnd[5],
cmd->cmnd[6], cmd->cmnd[7],
- cmd->cmnd[8], cmd->cmnd[9]);
+ cmd->cmnd[8], cmd->cmnd[9],
+ cmd->cmnd[10], cmd->cmnd[11],
+ cmd->cmnd[12], cmd->cmnd[13],
+ cmd->cmnd[14], cmd->cmnd[15]);
break;
}
@@ -1086,7 +1168,7 @@ static void complete_scsi_command(struct CommandList *cp,
dev_warn(&h->pdev->dev, "cp %p reports abort failed\n", cp);
break;
case CMD_UNSOLICITED_ABORT:
- cmd->result = DID_ABORT << 16;
+ cmd->result = DID_RESET << 16;
dev_warn(&h->pdev->dev, "cp %p aborted do to an unsolicited "
"abort\n", cp);
break;
@@ -1119,9 +1201,11 @@ static int hpsa_scsi_detect(struct ctlr_info *h)
sh->max_cmd_len = MAX_COMMAND_SIZE;
sh->max_lun = HPSA_MAX_LUN;
sh->max_id = HPSA_MAX_LUN;
+ sh->can_queue = h->nr_cmds;
+ sh->cmd_per_lun = h->nr_cmds;
h->scsi_host = sh;
sh->hostdata[0] = (unsigned long) h;
- sh->irq = h->intr[SIMPLE_MODE_INT];
+ sh->irq = h->intr[PERF_MODE_INT];
sh->unique_id = sh->irq;
error = scsi_add_host(sh, &h->pdev->dev);
if (error)
@@ -1133,11 +1217,11 @@ static int hpsa_scsi_detect(struct ctlr_info *h)
dev_err(&h->pdev->dev, "hpsa_scsi_detect: scsi_add_host"
" failed for controller %d\n", h->ctlr);
scsi_host_put(sh);
- return -1;
+ return error;
fail:
dev_err(&h->pdev->dev, "hpsa_scsi_detect: scsi_host_alloc"
" failed for controller %d\n", h->ctlr);
- return -1;
+ return -ENOMEM;
}
static void hpsa_pci_unmap(struct pci_dev *pdev,
@@ -1160,7 +1244,7 @@ static void hpsa_map_one(struct pci_dev *pdev,
size_t buflen,
int data_direction)
{
- __u64 addr64;
+ u64 addr64;
if (buflen == 0 || data_direction == PCI_DMA_NONE) {
cp->Header.SGList = 0;
@@ -1168,14 +1252,14 @@ static void hpsa_map_one(struct pci_dev *pdev,
return;
}
- addr64 = (__u64) pci_map_single(pdev, buf, buflen, data_direction);
+ addr64 = (u64) pci_map_single(pdev, buf, buflen, data_direction);
cp->SG[0].Addr.lower =
- (__u32) (addr64 & (__u64) 0x00000000FFFFFFFF);
+ (u32) (addr64 & (u64) 0x00000000FFFFFFFF);
cp->SG[0].Addr.upper =
- (__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF);
+ (u32) ((addr64 >> 32) & (u64) 0x00000000FFFFFFFF);
cp->SG[0].Len = buflen;
- cp->Header.SGList = (__u8) 1; /* no. SGs contig in this cmd */
- cp->Header.SGTotal = (__u16) 1; /* total sgs in this cmd list */
+ cp->Header.SGList = (u8) 1; /* no. SGs contig in this cmd */
+ cp->Header.SGTotal = (u16) 1; /* total sgs in this cmd list */
}
static inline void hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h,
@@ -1274,7 +1358,7 @@ static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr,
if (c == NULL) { /* trouble... */
dev_warn(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
- return -1;
+ return -ENOMEM;
}
fill_cmd(c, HPSA_INQUIRY, h, buf, bufsize, page, scsi3addr, TYPE_CMD);
@@ -1366,9 +1450,8 @@ static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical,
dev_err(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
return -1;
}
-
- memset(&scsi3addr[0], 0, 8); /* address the controller */
-
+ /* address the controller */
+ memset(scsi3addr, 0, sizeof(scsi3addr));
fill_cmd(c, logical ? HPSA_REPORT_LOG : HPSA_REPORT_PHYS, h,
buf, bufsize, 0, scsi3addr, TYPE_CMD);
if (extended_response)
@@ -1409,13 +1492,12 @@ static int hpsa_update_device_info(struct ctlr_info *h,
unsigned char scsi3addr[], struct hpsa_scsi_dev_t *this_device)
{
#define OBDR_TAPE_INQ_SIZE 49
- unsigned char *inq_buff = NULL;
+ unsigned char *inq_buff;
- inq_buff = kmalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL);
+ inq_buff = kzalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL);
if (!inq_buff)
goto bail_out;
- memset(inq_buff, 0, OBDR_TAPE_INQ_SIZE);
/* Do an inquiry to the device to see what it is. */
if (hpsa_scsi_do_inquiry(h, scsi3addr, 0, inq_buff,
(unsigned char) OBDR_TAPE_INQ_SIZE) != 0) {
@@ -1485,32 +1567,51 @@ static int is_msa2xxx(struct ctlr_info *h, struct hpsa_scsi_dev_t *device)
* in hpsa_find_target_lun, called by hpsa_scsi_add_entry.)
*/
static void figure_bus_target_lun(struct ctlr_info *h,
- __u8 *lunaddrbytes, int *bus, int *target, int *lun,
+ u8 *lunaddrbytes, int *bus, int *target, int *lun,
struct hpsa_scsi_dev_t *device)
{
-
- __u32 lunid;
+ u32 lunid;
if (is_logical_dev_addr_mode(lunaddrbytes)) {
/* logical device */
- memcpy(&lunid, lunaddrbytes, sizeof(lunid));
- lunid = le32_to_cpu(lunid);
-
- if (is_msa2xxx(h, device)) {
- *bus = 1;
- *target = (lunid >> 16) & 0x3fff;
- *lun = lunid & 0x00ff;
- } else {
+ if (unlikely(is_scsi_rev_5(h))) {
+ /* p1210m, logical drives lun assignments
+ * match SCSI REPORT LUNS data.
+ */
+ lunid = le32_to_cpu(*((__le32 *) lunaddrbytes));
*bus = 0;
- *lun = 0;
- *target = lunid & 0x3fff;
+ *target = 0;
+ *lun = (lunid & 0x3fff) + 1;
+ } else {
+ /* not p1210m... */
+ lunid = le32_to_cpu(*((__le32 *) lunaddrbytes));
+ if (is_msa2xxx(h, device)) {
+ /* msa2xxx way, put logicals on bus 1
+ * and match target/lun numbers box
+ * reports.
+ */
+ *bus = 1;
+ *target = (lunid >> 16) & 0x3fff;
+ *lun = lunid & 0x00ff;
+ } else {
+ /* Traditional smart array way. */
+ *bus = 0;
+ *lun = 0;
+ *target = lunid & 0x3fff;
+ }
}
} else {
/* physical device */
if (is_hba_lunid(lunaddrbytes))
- *bus = 3;
+ if (unlikely(is_scsi_rev_5(h))) {
+ *bus = 0; /* put p1210m ctlr at 0,0,0 */
+ *target = 0;
+ *lun = 0;
+ return;
+ } else
+ *bus = 3; /* traditional smartarray */
else
- *bus = 2;
+ *bus = 2; /* physical disk */
*target = -1;
*lun = -1; /* we will fill these in later. */
}
@@ -1529,7 +1630,7 @@ static void figure_bus_target_lun(struct ctlr_info *h,
*/
static int add_msa2xxx_enclosure_device(struct ctlr_info *h,
struct hpsa_scsi_dev_t *tmpdevice,
- struct hpsa_scsi_dev_t *this_device, __u8 *lunaddrbytes,
+ struct hpsa_scsi_dev_t *this_device, u8 *lunaddrbytes,
int bus, int target, int lun, unsigned long lunzerobits[],
int *nmsa2xxx_enclosures)
{
@@ -1550,6 +1651,9 @@ static int add_msa2xxx_enclosure_device(struct ctlr_info *h,
if (is_hba_lunid(scsi3addr))
return 0; /* Don't add the RAID controller here. */
+ if (is_scsi_rev_5(h))
+ return 0; /* p1210m doesn't need to do this. */
+
#define MAX_MSA2XXX_ENCLOSURES 32
if (*nmsa2xxx_enclosures >= MAX_MSA2XXX_ENCLOSURES) {
dev_warn(&h->pdev->dev, "Maximum number of MSA2XXX "
@@ -1576,18 +1680,14 @@ static int add_msa2xxx_enclosure_device(struct ctlr_info *h,
*/
static int hpsa_gather_lun_info(struct ctlr_info *h,
int reportlunsize,
- struct ReportLUNdata *physdev, __u32 *nphysicals,
- struct ReportLUNdata *logdev, __u32 *nlogicals)
+ struct ReportLUNdata *physdev, u32 *nphysicals,
+ struct ReportLUNdata *logdev, u32 *nlogicals)
{
if (hpsa_scsi_do_report_phys_luns(h, physdev, reportlunsize, 0)) {
dev_err(&h->pdev->dev, "report physical LUNs failed.\n");
return -1;
}
- memcpy(nphysicals, &physdev->LUNListLength[0], sizeof(*nphysicals));
- *nphysicals = be32_to_cpu(*nphysicals) / 8;
-#ifdef DEBUG
- dev_info(&h->pdev->dev, "number of physical luns is %d\n", *nphysicals);
-#endif
+ *nphysicals = be32_to_cpu(*((__be32 *)physdev->LUNListLength)) / 8;
if (*nphysicals > HPSA_MAX_PHYS_LUN) {
dev_warn(&h->pdev->dev, "maximum physical LUNs (%d) exceeded."
" %d LUNs ignored.\n", HPSA_MAX_PHYS_LUN,
@@ -1598,11 +1698,7 @@ static int hpsa_gather_lun_info(struct ctlr_info *h,
dev_err(&h->pdev->dev, "report logical LUNs failed.\n");
return -1;
}
- memcpy(nlogicals, &logdev->LUNListLength[0], sizeof(*nlogicals));
- *nlogicals = be32_to_cpu(*nlogicals) / 8;
-#ifdef DEBUG
- dev_info(&h->pdev->dev, "number of logical luns is %d\n", *nlogicals);
-#endif
+ *nlogicals = be32_to_cpu(*((__be32 *) logdev->LUNListLength)) / 8;
/* Reject Logicals in excess of our max capability. */
if (*nlogicals > HPSA_MAX_LUN) {
dev_warn(&h->pdev->dev,
@@ -1621,6 +1717,31 @@ static int hpsa_gather_lun_info(struct ctlr_info *h,
return 0;
}
+u8 *figure_lunaddrbytes(struct ctlr_info *h, int raid_ctlr_position, int i,
+ int nphysicals, int nlogicals, struct ReportLUNdata *physdev_list,
+ struct ReportLUNdata *logdev_list)
+{
+ /* Helper function, figure out where the LUN ID info is coming from
+ * given index i, lists of physical and logical devices, where in
+ * the list the raid controller is supposed to appear (first or last)
+ */
+
+ int logicals_start = nphysicals + (raid_ctlr_position == 0);
+ int last_device = nphysicals + nlogicals + (raid_ctlr_position == 0);
+
+ if (i == raid_ctlr_position)
+ return RAID_CTLR_LUNID;
+
+ if (i < logicals_start)
+ return &physdev_list->LUN[i - (raid_ctlr_position == 0)][0];
+
+ if (i < last_device)
+ return &logdev_list->LUN[i - nphysicals -
+ (raid_ctlr_position == 0)][0];
+ BUG();
+ return NULL;
+}
+
static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)
{
/* the idea here is we could get notified
@@ -1636,14 +1757,15 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)
struct ReportLUNdata *physdev_list = NULL;
struct ReportLUNdata *logdev_list = NULL;
unsigned char *inq_buff = NULL;
- __u32 nphysicals = 0;
- __u32 nlogicals = 0;
- __u32 ndev_allocated = 0;
+ u32 nphysicals = 0;
+ u32 nlogicals = 0;
+ u32 ndev_allocated = 0;
struct hpsa_scsi_dev_t **currentsd, *this_device, *tmpdevice;
int ncurrent = 0;
int reportlunsize = sizeof(*physdev_list) + HPSA_MAX_PHYS_LUN * 8;
int i, nmsa2xxx_enclosures, ndevs_to_allocate;
int bus, target, lun;
+ int raid_ctlr_position;
DECLARE_BITMAP(lunzerobits, HPSA_MAX_TARGETS_PER_CTLR);
currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_SCSI_DEVS_PER_HBA,
@@ -1681,23 +1803,22 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)
ndev_allocated++;
}
+ if (unlikely(is_scsi_rev_5(h)))
+ raid_ctlr_position = 0;
+ else
+ raid_ctlr_position = nphysicals + nlogicals;
+
/* adjust our table of devices */
nmsa2xxx_enclosures = 0;
for (i = 0; i < nphysicals + nlogicals + 1; i++) {
- __u8 *lunaddrbytes;
+ u8 *lunaddrbytes;
/* Figure out where the LUN ID info is coming from */
- if (i < nphysicals)
- lunaddrbytes = &physdev_list->LUN[i][0];
- else
- if (i < nphysicals + nlogicals)
- lunaddrbytes =
- &logdev_list->LUN[i-nphysicals][0];
- else /* jam in the RAID controller at the end */
- lunaddrbytes = RAID_CTLR_LUNID;
-
+ lunaddrbytes = figure_lunaddrbytes(h, raid_ctlr_position,
+ i, nphysicals, nlogicals, physdev_list, logdev_list);
/* skip masked physical devices. */
- if (lunaddrbytes[3] & 0xC0 && i < nphysicals)
+ if (lunaddrbytes[3] & 0xC0 &&
+ i < nphysicals + (raid_ctlr_position == 0))
continue;
/* Get device type, vendor, model, device id */
@@ -1777,7 +1898,6 @@ out:
kfree(inq_buff);
kfree(physdev_list);
kfree(logdev_list);
- return;
}
/* hpsa_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci
@@ -1790,7 +1910,7 @@ static int hpsa_scatter_gather(struct pci_dev *pdev,
{
unsigned int len;
struct scatterlist *sg;
- __u64 addr64;
+ u64 addr64;
int use_sg, i;
BUG_ON(scsi_sg_count(cmd) > MAXSGENTRIES);
@@ -1803,20 +1923,20 @@ static int hpsa_scatter_gather(struct pci_dev *pdev,
goto sglist_finished;
scsi_for_each_sg(cmd, sg, use_sg, i) {
- addr64 = (__u64) sg_dma_address(sg);
+ addr64 = (u64) sg_dma_address(sg);
len = sg_dma_len(sg);
cp->SG[i].Addr.lower =
- (__u32) (addr64 & (__u64) 0x00000000FFFFFFFF);
+ (u32) (addr64 & (u64) 0x00000000FFFFFFFF);
cp->SG[i].Addr.upper =
- (__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF);
+ (u32) ((addr64 >> 32) & (u64) 0x00000000FFFFFFFF);
cp->SG[i].Len = len;
cp->SG[i].Ext = 0; /* we are not chaining */
}
sglist_finished:
- cp->Header.SGList = (__u8) use_sg; /* no. SGs contig in this cmd */
- cp->Header.SGTotal = (__u16) use_sg; /* total sgs in this cmd list */
+ cp->Header.SGList = (u8) use_sg; /* no. SGs contig in this cmd */
+ cp->Header.SGTotal = (u16) use_sg; /* total sgs in this cmd list */
return 0;
}
@@ -1860,7 +1980,8 @@ static int hpsa_scsi_queue_command(struct scsi_cmnd *cmd,
c->scsi_cmd = cmd;
c->Header.ReplyQueue = 0; /* unused in simple mode */
memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8);
- c->Header.Tag.lower = c->busaddr; /* Use k. address of cmd as tag */
+ c->Header.Tag.lower = (c->cmdindex << DIRECT_LOOKUP_SHIFT);
+ c->Header.Tag.lower |= DIRECT_LOOKUP_BIT;
/* Fill in the request block... */
@@ -1914,6 +2035,48 @@ static int hpsa_scsi_queue_command(struct scsi_cmnd *cmd,
return 0;
}
+static void hpsa_scan_start(struct Scsi_Host *sh)
+{
+ struct ctlr_info *h = shost_to_hba(sh);
+ unsigned long flags;
+
+ /* wait until any scan already in progress is finished. */
+ while (1) {
+ spin_lock_irqsave(&h->scan_lock, flags);
+ if (h->scan_finished)
+ break;
+ spin_unlock_irqrestore(&h->scan_lock, flags);
+ wait_event(h->scan_wait_queue, h->scan_finished);
+ /* Note: We don't need to worry about a race between this
+ * thread and driver unload because the midlayer will
+ * have incremented the reference count, so unload won't
+ * happen if we're in here.
+ */
+ }
+ h->scan_finished = 0; /* mark scan as in progress */
+ spin_unlock_irqrestore(&h->scan_lock, flags);
+
+ hpsa_update_scsi_devices(h, h->scsi_host->host_no);
+
+ spin_lock_irqsave(&h->scan_lock, flags);
+ h->scan_finished = 1; /* mark scan as finished. */
+ wake_up_all(&h->scan_wait_queue);
+ spin_unlock_irqrestore(&h->scan_lock, flags);
+}
+
+static int hpsa_scan_finished(struct Scsi_Host *sh,
+ unsigned long elapsed_time)
+{
+ struct ctlr_info *h = shost_to_hba(sh);
+ unsigned long flags;
+ int finished;
+
+ spin_lock_irqsave(&h->scan_lock, flags);
+ finished = h->scan_finished;
+ spin_unlock_irqrestore(&h->scan_lock, flags);
+ return finished;
+}
+
static void hpsa_unregister_scsi(struct ctlr_info *h)
{
/* we are being forcibly unloaded, and may not refuse. */
@@ -1926,7 +2089,6 @@ static int hpsa_register_scsi(struct ctlr_info *h)
{
int rc;
- hpsa_update_scsi_devices(h, -1);
rc = hpsa_scsi_detect(h);
if (rc != 0)
dev_err(&h->pdev->dev, "hpsa_register_scsi: failed"
@@ -2003,14 +2165,14 @@ static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd)
h = sdev_to_hba(scsicmd->device);
if (h == NULL) /* paranoia */
return FAILED;
- dev_warn(&h->pdev->dev, "resetting drive\n");
-
dev = scsicmd->device->hostdata;
if (!dev) {
dev_err(&h->pdev->dev, "hpsa_eh_device_reset_handler: "
"device lookup failed.\n");
return FAILED;
}
+ dev_warn(&h->pdev->dev, "resetting device %d:%d:%d:%d\n",
+ h->scsi_host->host_no, dev->bus, dev->target, dev->lun);
/* send a reset to the SCSI LUN which the command was sent to */
rc = hpsa_send_reset(h, dev->scsi3addr);
if (rc == 0 && wait_for_device_to_become_ready(h, dev->scsi3addr) == 0)
@@ -2053,8 +2215,8 @@ static struct CommandList *cmd_alloc(struct ctlr_info *h)
c->cmdindex = i;
INIT_HLIST_NODE(&c->list);
- c->busaddr = (__u32) cmd_dma_handle;
- temp64.val = (__u64) err_dma_handle;
+ c->busaddr = (u32) cmd_dma_handle;
+ temp64.val = (u64) err_dma_handle;
c->ErrDesc.Addr.lower = temp64.val32.lower;
c->ErrDesc.Addr.upper = temp64.val32.upper;
c->ErrDesc.Len = sizeof(*c->err_info);
@@ -2091,8 +2253,8 @@ static struct CommandList *cmd_special_alloc(struct ctlr_info *h)
memset(c->err_info, 0, sizeof(*c->err_info));
INIT_HLIST_NODE(&c->list);
- c->busaddr = (__u32) cmd_dma_handle;
- temp64.val = (__u64) err_dma_handle;
+ c->busaddr = (u32) cmd_dma_handle;
+ temp64.val = (u64) err_dma_handle;
c->ErrDesc.Addr.lower = temp64.val32.lower;
c->ErrDesc.Addr.upper = temp64.val32.upper;
c->ErrDesc.Len = sizeof(*c->err_info);
@@ -2125,50 +2287,6 @@ static void cmd_special_free(struct ctlr_info *h, struct CommandList *c)
#ifdef CONFIG_COMPAT
-static int do_ioctl(struct scsi_device *dev, int cmd, void *arg)
-{
- int ret;
-
- lock_kernel();
- ret = hpsa_ioctl(dev, cmd, arg);
- unlock_kernel();
- return ret;
-}
-
-static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, void *arg);
-static int hpsa_ioctl32_big_passthru(struct scsi_device *dev,
- int cmd, void *arg);
-
-static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, void *arg)
-{
- switch (cmd) {
- case CCISS_GETPCIINFO:
- case CCISS_GETINTINFO:
- case CCISS_SETINTINFO:
- case CCISS_GETNODENAME:
- case CCISS_SETNODENAME:
- case CCISS_GETHEARTBEAT:
- case CCISS_GETBUSTYPES:
- case CCISS_GETFIRMVER:
- case CCISS_GETDRIVVER:
- case CCISS_REVALIDVOLS:
- case CCISS_DEREGDISK:
- case CCISS_REGNEWDISK:
- case CCISS_REGNEWD:
- case CCISS_RESCANDISK:
- case CCISS_GETLUNINFO:
- return do_ioctl(dev, cmd, arg);
-
- case CCISS_PASSTHRU32:
- return hpsa_ioctl32_passthru(dev, cmd, arg);
- case CCISS_BIG_PASSTHRU32:
- return hpsa_ioctl32_big_passthru(dev, cmd, arg);
-
- default:
- return -ENOIOCTLCMD;
- }
-}
-
static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, void *arg)
{
IOCTL32_Command_struct __user *arg32 =
@@ -2193,7 +2311,7 @@ static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, void *arg)
if (err)
return -EFAULT;
- err = do_ioctl(dev, CCISS_PASSTHRU, (void *)p);
+ err = hpsa_ioctl(dev, CCISS_PASSTHRU, (void *)p);
if (err)
return err;
err |= copy_in_user(&arg32->error_info, &p->error_info,
@@ -2230,7 +2348,7 @@ static int hpsa_ioctl32_big_passthru(struct scsi_device *dev,
if (err)
return -EFAULT;
- err = do_ioctl(dev, CCISS_BIG_PASSTHRU, (void *)p);
+ err = hpsa_ioctl(dev, CCISS_BIG_PASSTHRU, (void *)p);
if (err)
return err;
err |= copy_in_user(&arg32->error_info, &p->error_info,
@@ -2239,6 +2357,36 @@ static int hpsa_ioctl32_big_passthru(struct scsi_device *dev,
return -EFAULT;
return err;
}
+
+static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, void *arg)
+{
+ switch (cmd) {
+ case CCISS_GETPCIINFO:
+ case CCISS_GETINTINFO:
+ case CCISS_SETINTINFO:
+ case CCISS_GETNODENAME:
+ case CCISS_SETNODENAME:
+ case CCISS_GETHEARTBEAT:
+ case CCISS_GETBUSTYPES:
+ case CCISS_GETFIRMVER:
+ case CCISS_GETDRIVVER:
+ case CCISS_REVALIDVOLS:
+ case CCISS_DEREGDISK:
+ case CCISS_REGNEWDISK:
+ case CCISS_REGNEWD:
+ case CCISS_RESCANDISK:
+ case CCISS_GETLUNINFO:
+ return hpsa_ioctl(dev, cmd, arg);
+
+ case CCISS_PASSTHRU32:
+ return hpsa_ioctl32_passthru(dev, cmd, arg);
+ case CCISS_BIG_PASSTHRU32:
+ return hpsa_ioctl32_big_passthru(dev, cmd, arg);
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
#endif
static int hpsa_getpciinfo_ioctl(struct ctlr_info *h, void __user *argp)
@@ -2378,8 +2526,8 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
BYTE sg_used = 0;
int status = 0;
int i;
- __u32 left;
- __u32 sz;
+ u32 left;
+ u32 sz;
BYTE __user *data_ptr;
if (!argp)
@@ -2527,7 +2675,7 @@ static int hpsa_ioctl(struct scsi_device *dev, int cmd, void *arg)
case CCISS_DEREGDISK:
case CCISS_REGNEWDISK:
case CCISS_REGNEWD:
- hpsa_update_scsi_devices(h, dev->host->host_no);
+ hpsa_scan_start(h->scsi_host);
return 0;
case CCISS_GETPCIINFO:
return hpsa_getpciinfo_ioctl(h, argp);
@@ -2542,8 +2690,8 @@ static int hpsa_ioctl(struct scsi_device *dev, int cmd, void *arg)
}
}
-static void fill_cmd(struct CommandList *c, __u8 cmd, struct ctlr_info *h,
- void *buff, size_t size, __u8 page_code, unsigned char *scsi3addr,
+static void fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
+ void *buff, size_t size, u8 page_code, unsigned char *scsi3addr,
int cmd_type)
{
int pci_dir = XFER_NONE;
@@ -2710,19 +2858,20 @@ static inline unsigned long get_next_completion(struct ctlr_info *h)
return h->access.command_completed(h);
}
-static inline int interrupt_pending(struct ctlr_info *h)
+static inline bool interrupt_pending(struct ctlr_info *h)
{
return h->access.intr_pending(h);
}
static inline long interrupt_not_for_us(struct ctlr_info *h)
{
- return ((h->access.intr_pending(h) == 0) ||
- (h->interrupts_enabled == 0));
+ return !(h->msi_vector || h->msix_vector) &&
+ ((h->access.intr_pending(h) == 0) ||
+ (h->interrupts_enabled == 0));
}
-static inline int bad_tag(struct ctlr_info *h, __u32 tag_index,
- __u32 raw_tag)
+static inline int bad_tag(struct ctlr_info *h, u32 tag_index,
+ u32 raw_tag)
{
if (unlikely(tag_index >= h->nr_cmds)) {
dev_warn(&h->pdev->dev, "bad tag 0x%08x ignored.\n", raw_tag);
@@ -2731,7 +2880,7 @@ static inline int bad_tag(struct ctlr_info *h, __u32 tag_index,
return 0;
}
-static inline void finish_cmd(struct CommandList *c, __u32 raw_tag)
+static inline void finish_cmd(struct CommandList *c, u32 raw_tag)
{
removeQ(c);
if (likely(c->cmd_type == CMD_SCSI))
@@ -2740,42 +2889,79 @@ static inline void finish_cmd(struct CommandList *c, __u32 raw_tag)
complete(c->waiting);
}
+static inline u32 hpsa_tag_contains_index(u32 tag)
+{
+#define DIRECT_LOOKUP_BIT 0x10
+ return tag & DIRECT_LOOKUP_BIT;
+}
+
+static inline u32 hpsa_tag_to_index(u32 tag)
+{
+#define DIRECT_LOOKUP_SHIFT 5
+ return tag >> DIRECT_LOOKUP_SHIFT;
+}
+
+static inline u32 hpsa_tag_discard_error_bits(u32 tag)
+{
+#define HPSA_ERROR_BITS 0x03
+ return tag & ~HPSA_ERROR_BITS;
+}
+
+/* process completion of an indexed ("direct lookup") command */
+static inline u32 process_indexed_cmd(struct ctlr_info *h,
+ u32 raw_tag)
+{
+ u32 tag_index;
+ struct CommandList *c;
+
+ tag_index = hpsa_tag_to_index(raw_tag);
+ if (bad_tag(h, tag_index, raw_tag))
+ return next_command(h);
+ c = h->cmd_pool + tag_index;
+ finish_cmd(c, raw_tag);
+ return next_command(h);
+}
+
+/* process completion of a non-indexed command */
+static inline u32 process_nonindexed_cmd(struct ctlr_info *h,
+ u32 raw_tag)
+{
+ u32 tag;
+ struct CommandList *c = NULL;
+ struct hlist_node *tmp;
+
+ tag = hpsa_tag_discard_error_bits(raw_tag);
+ hlist_for_each_entry(c, tmp, &h->cmpQ, list) {
+ if ((c->busaddr & 0xFFFFFFE0) == (tag & 0xFFFFFFE0)) {
+ finish_cmd(c, raw_tag);
+ return next_command(h);
+ }
+ }
+ bad_tag(h, h->nr_cmds + 1, raw_tag);
+ return next_command(h);
+}
+
static irqreturn_t do_hpsa_intr(int irq, void *dev_id)
{
struct ctlr_info *h = dev_id;
- struct CommandList *c;
unsigned long flags;
- __u32 raw_tag, tag, tag_index;
- struct hlist_node *tmp;
+ u32 raw_tag;
if (interrupt_not_for_us(h))
return IRQ_NONE;
spin_lock_irqsave(&h->lock, flags);
- while (interrupt_pending(h)) {
- while ((raw_tag = get_next_completion(h)) != FIFO_EMPTY) {
- if (likely(HPSA_TAG_CONTAINS_INDEX(raw_tag))) {
- tag_index = HPSA_TAG_TO_INDEX(raw_tag);
- if (bad_tag(h, tag_index, raw_tag))
- return IRQ_HANDLED;
- c = h->cmd_pool + tag_index;
- finish_cmd(c, raw_tag);
- continue;
- }
- tag = HPSA_TAG_DISCARD_ERROR_BITS(raw_tag);
- c = NULL;
- hlist_for_each_entry(c, tmp, &h->cmpQ, list) {
- if (c->busaddr == tag) {
- finish_cmd(c, raw_tag);
- break;
- }
- }
- }
+ raw_tag = get_next_completion(h);
+ while (raw_tag != FIFO_EMPTY) {
+ if (hpsa_tag_contains_index(raw_tag))
+ raw_tag = process_indexed_cmd(h, raw_tag);
+ else
+ raw_tag = process_nonindexed_cmd(h, raw_tag);
}
spin_unlock_irqrestore(&h->lock, flags);
return IRQ_HANDLED;
}
-/* Send a message CDB to the firmware. */
+/* Send a message CDB to the firmwart. */
static __devinit int hpsa_message(struct pci_dev *pdev, unsigned char opcode,
unsigned char type)
{
@@ -2841,7 +3027,7 @@ static __devinit int hpsa_message(struct pci_dev *pdev, unsigned char opcode,
for (i = 0; i < HPSA_MSG_SEND_RETRY_LIMIT; i++) {
tag = readl(vaddr + SA5_REPLY_PORT_OFFSET);
- if (HPSA_TAG_DISCARD_ERROR_BITS(tag) == paddr32)
+ if (hpsa_tag_discard_error_bits(tag) == paddr32)
break;
msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS);
}
@@ -3063,7 +3249,7 @@ static int find_PCI_BAR_index(struct pci_dev *pdev, unsigned long pci_bar_addr)
*/
static void __devinit hpsa_interrupt_mode(struct ctlr_info *h,
- struct pci_dev *pdev, __u32 board_id)
+ struct pci_dev *pdev, u32 board_id)
{
#ifdef CONFIG_PCI_MSI
int err;
@@ -3107,22 +3293,22 @@ static void __devinit hpsa_interrupt_mode(struct ctlr_info *h,
default_int_mode:
#endif /* CONFIG_PCI_MSI */
/* if we get here we're going to use the default interrupt mode */
- h->intr[SIMPLE_MODE_INT] = pdev->irq;
- return;
+ h->intr[PERF_MODE_INT] = pdev->irq;
}
static int hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
{
ushort subsystem_vendor_id, subsystem_device_id, command;
- __u32 board_id, scratchpad = 0;
- __u64 cfg_offset;
- __u32 cfg_base_addr;
- __u64 cfg_base_addr_index;
+ u32 board_id, scratchpad = 0;
+ u64 cfg_offset;
+ u32 cfg_base_addr;
+ u64 cfg_base_addr_index;
+ u32 trans_offset;
int i, prod_index, err;
subsystem_vendor_id = pdev->subsystem_vendor;
subsystem_device_id = pdev->subsystem_device;
- board_id = (((__u32) (subsystem_device_id << 16) & 0xffff0000) |
+ board_id = (((u32) (subsystem_device_id << 16) & 0xffff0000) |
subsystem_vendor_id);
for (i = 0; i < ARRAY_SIZE(products); i++)
@@ -3199,7 +3385,7 @@ static int hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
/* get the address index number */
cfg_base_addr = readl(h->vaddr + SA5_CTCFG_OFFSET);
- cfg_base_addr &= (__u32) 0x0000ffff;
+ cfg_base_addr &= (u32) 0x0000ffff;
cfg_base_addr_index = find_PCI_BAR_index(pdev, cfg_base_addr);
if (cfg_base_addr_index == -1) {
dev_warn(&pdev->dev, "cannot find cfg_base_addr_index\n");
@@ -3211,11 +3397,14 @@ static int hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
h->cfgtable = remap_pci_mem(pci_resource_start(pdev,
cfg_base_addr_index) + cfg_offset,
sizeof(h->cfgtable));
- h->board_id = board_id;
-
- /* Query controller for max supported commands: */
- h->max_commands = readl(&(h->cfgtable->CmdsOutMax));
+ /* Find performant mode table. */
+ trans_offset = readl(&(h->cfgtable->TransMethodOffset));
+ h->transtable = remap_pci_mem(pci_resource_start(pdev,
+ cfg_base_addr_index)+cfg_offset+trans_offset,
+ sizeof(*h->transtable));
+ h->board_id = board_id;
+ h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
h->product_name = products[prod_index].product_name;
h->access = *(products[prod_index].access);
/* Allow room for some ioctls */
@@ -3232,7 +3421,7 @@ static int hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
#ifdef CONFIG_X86
{
/* Need to enable prefetch in the SCSI core for 6400 in x86 */
- __u32 prefetch;
+ u32 prefetch;
prefetch = readl(&(h->cfgtable->SCSI_Prefetch));
prefetch |= 0x100;
writel(prefetch, &(h->cfgtable->SCSI_Prefetch));
@@ -3244,7 +3433,7 @@ static int hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
* physical memory.
*/
if (board_id == 0x3225103C) {
- __u32 dma_prefetch;
+ u32 dma_prefetch;
dma_prefetch = readl(h->vaddr + I2O_DMA1_CFG);
dma_prefetch |= 0x8000;
writel(dma_prefetch, h->vaddr + I2O_DMA1_CFG);
@@ -3286,10 +3475,26 @@ err_out_free_res:
return err;
}
+static void __devinit hpsa_hba_inquiry(struct ctlr_info *h)
+{
+ int rc;
+
+#define HBA_INQUIRY_BYTE_COUNT 64
+ h->hba_inquiry_data = kmalloc(HBA_INQUIRY_BYTE_COUNT, GFP_KERNEL);
+ if (!h->hba_inquiry_data)
+ return;
+ rc = hpsa_scsi_do_inquiry(h, RAID_CTLR_LUNID, 0,
+ h->hba_inquiry_data, HBA_INQUIRY_BYTE_COUNT);
+ if (rc != 0) {
+ kfree(h->hba_inquiry_data);
+ h->hba_inquiry_data = NULL;
+ }
+}
+
static int __devinit hpsa_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
- int i;
+ int i, rc;
int dac;
struct ctlr_info *h;
@@ -3314,17 +3519,23 @@ static int __devinit hpsa_init_one(struct pci_dev *pdev,
}
}
- BUILD_BUG_ON(sizeof(struct CommandList) % 8);
+ /* Command structures must be aligned on a 32-byte boundary because
+ * the 5 lower bits of the address are used by the hardware. and by
+ * the driver. See comments in hpsa.h for more info.
+ */
+#define COMMANDLIST_ALIGNMENT 32
+ BUILD_BUG_ON(sizeof(struct CommandList) % COMMANDLIST_ALIGNMENT);
h = kzalloc(sizeof(*h), GFP_KERNEL);
if (!h)
- return -1;
+ return -ENOMEM;
h->busy_initializing = 1;
INIT_HLIST_HEAD(&h->cmpQ);
INIT_HLIST_HEAD(&h->reqQ);
mutex_init(&h->busy_shutting_down);
init_completion(&h->scan_wait);
- if (hpsa_pci_init(h, pdev) != 0)
+ rc = hpsa_pci_init(h, pdev);
+ if (rc != 0)
goto clean1;
sprintf(h->devname, "hpsa%d", number_of_controllers);
@@ -3333,27 +3544,32 @@ static int __devinit hpsa_init_one(struct pci_dev *pdev,
h->pdev = pdev;
/* configure PCI DMA stuff */
- if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
+ rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+ if (rc == 0) {
dac = 1;
- else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
- dac = 0;
- else {
- dev_err(&pdev->dev, "no suitable DMA available\n");
- goto clean1;
+ } else {
+ rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (rc == 0) {
+ dac = 0;
+ } else {
+ dev_err(&pdev->dev, "no suitable DMA available\n");
+ goto clean1;
+ }
}
/* make sure the board interrupts are off */
h->access.set_intr_mask(h, HPSA_INTR_OFF);
- if (request_irq(h->intr[SIMPLE_MODE_INT], do_hpsa_intr,
- IRQF_DISABLED | IRQF_SHARED, h->devname, h)) {
+ rc = request_irq(h->intr[PERF_MODE_INT], do_hpsa_intr,
+ IRQF_DISABLED, h->devname, h);
+ if (rc) {
dev_err(&pdev->dev, "unable to get irq %d for %s\n",
- h->intr[SIMPLE_MODE_INT], h->devname);
+ h->intr[PERF_MODE_INT], h->devname);
goto clean2;
}
- dev_info(&pdev->dev, "%s: <0x%x> at PCI %s IRQ %d%s using DAC\n",
- h->devname, pdev->device, pci_name(pdev),
- h->intr[SIMPLE_MODE_INT], dac ? "" : " not");
+ dev_info(&pdev->dev, "%s: <0x%x> at IRQ %d%s using DAC\n",
+ h->devname, pdev->device,
+ h->intr[PERF_MODE_INT], dac ? "" : " not");
h->cmd_pool_bits =
kmalloc(((h->nr_cmds + BITS_PER_LONG -
@@ -3368,9 +3584,13 @@ static int __devinit hpsa_init_one(struct pci_dev *pdev,
|| (h->cmd_pool == NULL)
|| (h->errinfo_pool == NULL)) {
dev_err(&pdev->dev, "out of memory");
+ rc = -ENOMEM;
goto clean4;
}
spin_lock_init(&h->lock);
+ spin_lock_init(&h->scan_lock);
+ init_waitqueue_head(&h->scan_wait_queue);
+ h->scan_finished = 1; /* no scan currently in progress */
pci_set_drvdata(pdev, h);
memset(h->cmd_pool_bits, 0,
@@ -3382,6 +3602,8 @@ static int __devinit hpsa_init_one(struct pci_dev *pdev,
/* Turn the interrupts on so we can service requests */
h->access.set_intr_mask(h, HPSA_INTR_ON);
+ hpsa_put_ctlr_into_performant_mode(h);
+ hpsa_hba_inquiry(h);
hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */
h->busy_initializing = 0;
return 1;
@@ -3397,12 +3619,12 @@ clean4:
h->nr_cmds * sizeof(struct ErrorInfo),
h->errinfo_pool,
h->errinfo_pool_dhandle);
- free_irq(h->intr[SIMPLE_MODE_INT], h);
+ free_irq(h->intr[PERF_MODE_INT], h);
clean2:
clean1:
h->busy_initializing = 0;
kfree(h);
- return -1;
+ return rc;
}
static void hpsa_flush_cache(struct ctlr_info *h)
@@ -3441,7 +3663,7 @@ static void hpsa_shutdown(struct pci_dev *pdev)
*/
hpsa_flush_cache(h);
h->access.set_intr_mask(h, HPSA_INTR_OFF);
- free_irq(h->intr[2], h);
+ free_irq(h->intr[PERF_MODE_INT], h);
#ifdef CONFIG_PCI_MSI
if (h->msix_vector)
pci_disable_msix(h->pdev);
@@ -3470,7 +3692,11 @@ static void __devexit hpsa_remove_one(struct pci_dev *pdev)
pci_free_consistent(h->pdev,
h->nr_cmds * sizeof(struct ErrorInfo),
h->errinfo_pool, h->errinfo_pool_dhandle);
+ pci_free_consistent(h->pdev, h->reply_pool_size,
+ h->reply_pool, h->reply_pool_dhandle);
kfree(h->cmd_pool_bits);
+ kfree(h->blockFetchTable);
+ kfree(h->hba_inquiry_data);
/*
* Deliberately omit pci_disable_device(): it does something nasty to
* Smart Array controllers that pci_enable_device does not undo
@@ -3502,6 +3728,129 @@ static struct pci_driver hpsa_pci_driver = {
.resume = hpsa_resume,
};
+/* Fill in bucket_map[], given nsgs (the max number of
+ * scatter gather elements supported) and bucket[],
+ * which is an array of 8 integers. The bucket[] array
+ * contains 8 different DMA transfer sizes (in 16
+ * byte increments) which the controller uses to fetch
+ * commands. This function fills in bucket_map[], which
+ * maps a given number of scatter gather elements to one of
+ * the 8 DMA transfer sizes. The point of it is to allow the
+ * controller to only do as much DMA as needed to fetch the
+ * command, with the DMA transfer size encoded in the lower
+ * bits of the command address.
+ */
+static void calc_bucket_map(int bucket[], int num_buckets,
+ int nsgs, int *bucket_map)
+{
+ int i, j, b, size;
+
+ /* even a command with 0 SGs requires 4 blocks */
+#define MINIMUM_TRANSFER_BLOCKS 4
+#define NUM_BUCKETS 8
+ /* Note, bucket_map must have nsgs+1 entries. */
+ for (i = 0; i <= nsgs; i++) {
+ /* Compute size of a command with i SG entries */
+ size = i + MINIMUM_TRANSFER_BLOCKS;
+ b = num_buckets; /* Assume the biggest bucket */
+ /* Find the bucket that is just big enough */
+ for (j = 0; j < 8; j++) {
+ if (bucket[j] >= size) {
+ b = j;
+ break;
+ }
+ }
+ /* for a command with i SG entries, use bucket b. */
+ bucket_map[i] = b;
+ }
+}
+
+static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
+{
+ u32 trans_support;
+ u64 trans_offset;
+ /* 5 = 1 s/g entry or 4k
+ * 6 = 2 s/g entry or 8k
+ * 8 = 4 s/g entry or 16k
+ * 10 = 6 s/g entry or 24k
+ */
+ int bft[8] = {5, 6, 8, 10, 12, 20, 28, 35}; /* for scatter/gathers */
+ int i = 0;
+ int l = 0;
+ unsigned long register_value;
+
+ trans_support = readl(&(h->cfgtable->TransportSupport));
+ if (!(trans_support & PERFORMANT_MODE))
+ return;
+
+ h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
+ h->max_sg_entries = 32;
+ /* Performant mode ring buffer and supporting data structures */
+ h->reply_pool_size = h->max_commands * sizeof(u64);
+ h->reply_pool = pci_alloc_consistent(h->pdev, h->reply_pool_size,
+ &(h->reply_pool_dhandle));
+
+ /* Need a block fetch table for performant mode */
+ h->blockFetchTable = kmalloc(((h->max_sg_entries+1) *
+ sizeof(u32)), GFP_KERNEL);
+
+ if ((h->reply_pool == NULL)
+ || (h->blockFetchTable == NULL))
+ goto clean_up;
+
+ h->reply_pool_wraparound = 1; /* spec: init to 1 */
+
+ /* Controller spec: zero out this buffer. */
+ memset(h->reply_pool, 0, h->reply_pool_size);
+ h->reply_pool_head = h->reply_pool;
+
+ trans_offset = readl(&(h->cfgtable->TransMethodOffset));
+ bft[7] = h->max_sg_entries + 4;
+ calc_bucket_map(bft, ARRAY_SIZE(bft), 32, h->blockFetchTable);
+ for (i = 0; i < 8; i++)
+ writel(bft[i], &h->transtable->BlockFetch[i]);
+
+ /* size of controller ring buffer */
+ writel(h->max_commands, &h->transtable->RepQSize);
+ writel(1, &h->transtable->RepQCount);
+ writel(0, &h->transtable->RepQCtrAddrLow32);
+ writel(0, &h->transtable->RepQCtrAddrHigh32);
+ writel(h->reply_pool_dhandle, &h->transtable->RepQAddr0Low32);
+ writel(0, &h->transtable->RepQAddr0High32);
+ writel(CFGTBL_Trans_Performant,
+ &(h->cfgtable->HostWrite.TransportRequest));
+ writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
+ /* under certain very rare conditions, this can take awhile.
+ * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
+ * as we enter this code.) */
+ for (l = 0; l < MAX_CONFIG_WAIT; l++) {
+ register_value = readl(h->vaddr + SA5_DOORBELL);
+ if (!(register_value & CFGTBL_ChangeReq))
+ break;
+ /* delay and try again */
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(10);
+ }
+ register_value = readl(&(h->cfgtable->TransportActive));
+ if (!(register_value & CFGTBL_Trans_Performant)) {
+ dev_warn(&h->pdev->dev, "unable to get board into"
+ " performant mode\n");
+ return;
+ }
+
+ /* Change the access methods to the performant access methods */
+ h->access = SA5_performant_access;
+ h->transMethod = CFGTBL_Trans_Performant;
+
+ return;
+
+clean_up:
+ if (h->reply_pool)
+ pci_free_consistent(h->pdev, h->reply_pool_size,
+ h->reply_pool, h->reply_pool_dhandle);
+ kfree(h->blockFetchTable);
+}
+
/*
* This is it. Register the PCI driver information for the cards we control
* the OS will call our registered routines when it finds one of our cards.
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 02:00:33 +0100