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[PATCH] cciss: increase number of commands on controller
Remove #define NR_CMDS and replace it w/hba[i]->nr_cmds. Most Smart Array controllers can support up to 1024 commands but the E200 family can only support 128. To prevent annoying "fifo full" messages we define nr_cmds on a per controller basis by adding it the product table. Signed-off-by: Mike Miller <mike.miller@hp.com> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Mike Miller
Linus Torvalds
parent
4ff9a9a4ba
commit
f880632f96
@ -93,28 +93,29 @@ MODULE_DEVICE_TABLE(pci, cciss_pci_device_id);
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/* board_id = Subsystem Device ID & Vendor ID
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* product = Marketing Name for the board
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* access = Address of the struct of function pointers
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* nr_cmds = Number of commands supported by controller
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*/
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static struct board_type products[] = {
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{0x40700E11, "Smart Array 5300", &SA5_access},
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{0x40800E11, "Smart Array 5i", &SA5B_access},
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{0x40820E11, "Smart Array 532", &SA5B_access},
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{0x40830E11, "Smart Array 5312", &SA5B_access},
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{0x409A0E11, "Smart Array 641", &SA5_access},
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{0x409B0E11, "Smart Array 642", &SA5_access},
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{0x409C0E11, "Smart Array 6400", &SA5_access},
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{0x409D0E11, "Smart Array 6400 EM", &SA5_access},
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{0x40910E11, "Smart Array 6i", &SA5_access},
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{0x3225103C, "Smart Array P600", &SA5_access},
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{0x3223103C, "Smart Array P800", &SA5_access},
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{0x3234103C, "Smart Array P400", &SA5_access},
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{0x3235103C, "Smart Array P400i", &SA5_access},
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{0x3211103C, "Smart Array E200i", &SA5_access},
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{0x3212103C, "Smart Array E200", &SA5_access},
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{0x3213103C, "Smart Array E200i", &SA5_access},
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{0x3214103C, "Smart Array E200i", &SA5_access},
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{0x3215103C, "Smart Array E200i", &SA5_access},
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{0x3233103C, "Smart Array E500", &SA5_access},
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{0xFFFF103C, "Unknown Smart Array", &SA5_access},
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{0x40700E11, "Smart Array 5300", &SA5_access, 512},
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{0x40800E11, "Smart Array 5i", &SA5B_access, 512},
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{0x40820E11, "Smart Array 532", &SA5B_access, 512},
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{0x40830E11, "Smart Array 5312", &SA5B_access, 512},
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{0x409A0E11, "Smart Array 641", &SA5_access, 512},
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{0x409B0E11, "Smart Array 642", &SA5_access, 512},
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{0x409C0E11, "Smart Array 6400", &SA5_access, 512},
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{0x409D0E11, "Smart Array 6400 EM", &SA5_access, 512},
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{0x40910E11, "Smart Array 6i", &SA5_access, 512},
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{0x3225103C, "Smart Array P600", &SA5_access, 512},
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{0x3223103C, "Smart Array P800", &SA5_access, 512},
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{0x3234103C, "Smart Array P400", &SA5_access, 512},
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{0x3235103C, "Smart Array P400i", &SA5_access, 512},
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{0x3211103C, "Smart Array E200i", &SA5_access, 120},
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{0x3212103C, "Smart Array E200", &SA5_access, 120},
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{0x3213103C, "Smart Array E200i", &SA5_access, 120},
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{0x3214103C, "Smart Array E200i", &SA5_access, 120},
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{0x3215103C, "Smart Array E200i", &SA5_access, 120},
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{0x3233103C, "Smart Array E500", &SA5_access, 512},
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{0xFFFF103C, "Unknown Smart Array", &SA5_access, 120},
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};
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/* How long to wait (in milliseconds) for board to go into simple mode */
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@ -125,7 +126,6 @@ static struct board_type products[] = {
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#define MAX_CMD_RETRIES 3
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#define READ_AHEAD 1024
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#define NR_CMDS 384 /* #commands that can be outstanding */
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#define MAX_CTLR 32
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/* Originally cciss driver only supports 8 major numbers */
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@ -404,8 +404,8 @@ static CommandList_struct *cmd_alloc(ctlr_info_t *h, int get_from_pool)
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} else { /* get it out of the controllers pool */
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do {
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i = find_first_zero_bit(h->cmd_pool_bits, NR_CMDS);
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if (i == NR_CMDS)
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i = find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds);
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if (i == h->nr_cmds)
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return NULL;
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} while (test_and_set_bit
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(i & (BITS_PER_LONG - 1),
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@ -1247,7 +1247,7 @@ static void cciss_check_queues(ctlr_info_t *h)
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* in case the interrupt we serviced was from an ioctl and did not
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* free any new commands.
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*/
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if ((find_first_zero_bit(h->cmd_pool_bits, NR_CMDS)) == NR_CMDS)
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if ((find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds)) == h->nr_cmds)
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return;
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/* We have room on the queue for more commands. Now we need to queue
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@ -1266,7 +1266,7 @@ static void cciss_check_queues(ctlr_info_t *h)
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/* check to see if we have maxed out the number of commands
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* that can be placed on the queue.
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*/
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if ((find_first_zero_bit(h->cmd_pool_bits, NR_CMDS)) == NR_CMDS) {
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if ((find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds)) == h->nr_cmds) {
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if (curr_queue == start_queue) {
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h->next_to_run =
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(start_queue + 1) % (h->highest_lun + 1);
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@ -2140,7 +2140,7 @@ static int add_sendcmd_reject(__u8 cmd, int ctlr, unsigned long complete)
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/* We've sent down an abort or reset, but something else
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has completed */
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if (srl->ncompletions >= (NR_CMDS + 2)) {
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if (srl->ncompletions >= (hba[ctlr]->nr_cmds + 2)) {
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/* Uh oh. No room to save it for later... */
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printk(KERN_WARNING "cciss%d: Sendcmd: Invalid command addr, "
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"reject list overflow, command lost!\n", ctlr);
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@ -2677,7 +2677,7 @@ static irqreturn_t do_cciss_intr(int irq, void *dev_id)
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a1 = a;
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if ((a & 0x04)) {
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a2 = (a >> 3);
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if (a2 >= NR_CMDS) {
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if (a2 >= h->nr_cmds) {
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printk(KERN_WARNING
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"cciss: controller cciss%d failed, stopping.\n",
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h->ctlr);
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@ -2960,6 +2960,7 @@ static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
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if (board_id == products[i].board_id) {
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c->product_name = products[i].product_name;
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c->access = *(products[i].access);
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c->nr_cmds = products[i].nr_cmds;
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break;
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}
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}
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@ -2979,6 +2980,7 @@ static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
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if (subsystem_vendor_id == PCI_VENDOR_ID_HP) {
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c->product_name = products[i-1].product_name;
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c->access = *(products[i-1].access);
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c->nr_cmds = products[i-1].nr_cmds;
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printk(KERN_WARNING "cciss: This is an unknown "
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"Smart Array controller.\n"
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"cciss: Please update to the latest driver "
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@ -3286,15 +3288,15 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
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hba[i]->intr[SIMPLE_MODE_INT], dac ? "" : " not");
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hba[i]->cmd_pool_bits =
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kmalloc(((NR_CMDS + BITS_PER_LONG -
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kmalloc(((hba[i]->nr_cmds + BITS_PER_LONG -
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1) / BITS_PER_LONG) * sizeof(unsigned long), GFP_KERNEL);
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hba[i]->cmd_pool = (CommandList_struct *)
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pci_alloc_consistent(hba[i]->pdev,
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NR_CMDS * sizeof(CommandList_struct),
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hba[i]->nr_cmds * sizeof(CommandList_struct),
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&(hba[i]->cmd_pool_dhandle));
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hba[i]->errinfo_pool = (ErrorInfo_struct *)
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pci_alloc_consistent(hba[i]->pdev,
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NR_CMDS * sizeof(ErrorInfo_struct),
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hba[i]->nr_cmds * sizeof(ErrorInfo_struct),
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&(hba[i]->errinfo_pool_dhandle));
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if ((hba[i]->cmd_pool_bits == NULL)
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|| (hba[i]->cmd_pool == NULL)
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@ -3305,7 +3307,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
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#ifdef CONFIG_CISS_SCSI_TAPE
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hba[i]->scsi_rejects.complete =
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kmalloc(sizeof(hba[i]->scsi_rejects.complete[0]) *
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(NR_CMDS + 5), GFP_KERNEL);
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(hba[i]->nr_cmds + 5), GFP_KERNEL);
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if (hba[i]->scsi_rejects.complete == NULL) {
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printk(KERN_ERR "cciss: out of memory");
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goto clean4;
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@ -3319,7 +3321,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
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/* command and error info recs zeroed out before
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they are used */
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memset(hba[i]->cmd_pool_bits, 0,
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((NR_CMDS + BITS_PER_LONG -
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((hba[i]->nr_cmds + BITS_PER_LONG -
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1) / BITS_PER_LONG) * sizeof(unsigned long));
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#ifdef CCISS_DEBUG
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@ -3388,11 +3390,11 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
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kfree(hba[i]->cmd_pool_bits);
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if (hba[i]->cmd_pool)
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pci_free_consistent(hba[i]->pdev,
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NR_CMDS * sizeof(CommandList_struct),
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hba[i]->nr_cmds * sizeof(CommandList_struct),
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hba[i]->cmd_pool, hba[i]->cmd_pool_dhandle);
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if (hba[i]->errinfo_pool)
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pci_free_consistent(hba[i]->pdev,
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NR_CMDS * sizeof(ErrorInfo_struct),
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hba[i]->nr_cmds * sizeof(ErrorInfo_struct),
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hba[i]->errinfo_pool,
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hba[i]->errinfo_pool_dhandle);
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free_irq(hba[i]->intr[SIMPLE_MODE_INT], hba[i]);
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@ -3459,9 +3461,9 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev)
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}
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}
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pci_free_consistent(hba[i]->pdev, NR_CMDS * sizeof(CommandList_struct),
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pci_free_consistent(hba[i]->pdev, hba[i]->nr_cmds * sizeof(CommandList_struct),
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hba[i]->cmd_pool, hba[i]->cmd_pool_dhandle);
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pci_free_consistent(hba[i]->pdev, NR_CMDS * sizeof(ErrorInfo_struct),
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pci_free_consistent(hba[i]->pdev, hba[i]->nr_cmds * sizeof(ErrorInfo_struct),
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hba[i]->errinfo_pool, hba[i]->errinfo_pool_dhandle);
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kfree(hba[i]->cmd_pool_bits);
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#ifdef CONFIG_CISS_SCSI_TAPE
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@ -60,6 +60,7 @@ struct ctlr_info
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__u32 board_id;
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void __iomem *vaddr;
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unsigned long paddr;
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int nr_cmds; /* Number of commands allowed on this controller */
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CfgTable_struct __iomem *cfgtable;
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int interrupts_enabled;
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int major;
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@ -282,6 +283,7 @@ struct board_type {
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__u32 board_id;
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char *product_name;
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struct access_method *access;
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int nr_cmds; /* Max cmds this kind of ctlr can handle. */
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};
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#define CCISS_LOCK(i) (&hba[i]->lock)
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