[SCSI] stex: use config struct for parameters of different controllers
Use config struct (st_card_info) for parameters of different controllers Signed-off-by: Ed Lin <ed.lin@promise.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Ed Lin
James Bottomley
Родитель
99946f8141
Коммит
591a3a5f60
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@ -95,19 +95,8 @@ enum {
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TASK_ATTRIBUTE_ORDERED = 0x2,
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TASK_ATTRIBUTE_ACA = 0x4,
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/* request count, etc. */
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MU_MAX_REQUEST = 32,
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/* one message wasted, use MU_MAX_REQUEST+1
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to handle MU_MAX_REQUEST messages */
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MU_REQ_COUNT = (MU_MAX_REQUEST + 1),
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MU_STATUS_COUNT = (MU_MAX_REQUEST + 1),
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STEX_CDB_LENGTH = 16,
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REQ_VARIABLE_LEN = 1024,
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STATUS_VAR_LEN = 128,
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ST_CAN_QUEUE = MU_MAX_REQUEST,
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ST_CMD_PER_LUN = MU_MAX_REQUEST,
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ST_MAX_SG = 32,
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/* sg flags */
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@ -120,9 +109,8 @@ enum {
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st_shasta = 0,
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st_vsc = 1,
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st_vsc1 = 2,
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st_yosemite = 3,
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st_seq = 4,
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st_yosemite = 2,
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st_seq = 3,
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PASSTHRU_REQ_TYPE = 0x00000001,
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PASSTHRU_REQ_NO_WAKEUP = 0x00000100,
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@ -196,7 +184,7 @@ struct req_msg {
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u8 data_dir;
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u8 payload_sz; /* payload size in 4-byte, not used */
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u8 cdb[STEX_CDB_LENGTH];
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u8 variable[REQ_VARIABLE_LEN];
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u32 variable[0];
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};
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struct status_msg {
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@ -252,12 +240,6 @@ struct st_drvver {
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u32 reserved[3];
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};
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#define MU_REQ_BUFFER_SIZE (MU_REQ_COUNT * sizeof(struct req_msg))
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#define MU_STATUS_BUFFER_SIZE (MU_STATUS_COUNT * sizeof(struct status_msg))
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#define MU_BUFFER_SIZE (MU_REQ_BUFFER_SIZE + MU_STATUS_BUFFER_SIZE)
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#define STEX_EXTRA_SIZE sizeof(struct st_frame)
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#define STEX_BUFFER_SIZE (MU_BUFFER_SIZE + STEX_EXTRA_SIZE)
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struct st_ccb {
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struct req_msg *req;
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struct scsi_cmnd *cmd;
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@ -288,13 +270,26 @@ struct st_hba {
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struct status_msg *status_buffer;
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void *copy_buffer; /* temp buffer for driver-handled commands */
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struct st_ccb ccb[MU_MAX_REQUEST];
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struct st_ccb *ccb;
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struct st_ccb *wait_ccb;
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unsigned int mu_status;
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unsigned int cardtype;
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int msi_enabled;
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int out_req_cnt;
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u32 extra_offset;
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u16 rq_count;
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u16 rq_size;
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u16 sts_count;
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};
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struct st_card_info {
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unsigned int max_id;
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unsigned int max_lun;
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unsigned int max_channel;
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u16 rq_count;
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u16 rq_size;
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u16 sts_count;
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};
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static int msi;
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@ -331,7 +326,7 @@ static struct status_msg *stex_get_status(struct st_hba *hba)
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struct status_msg *status = hba->status_buffer + hba->status_tail;
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++hba->status_tail;
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hba->status_tail %= MU_STATUS_COUNT;
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hba->status_tail %= hba->sts_count+1;
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return status;
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}
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@ -349,11 +344,10 @@ static void stex_invalid_field(struct scsi_cmnd *cmd,
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static struct req_msg *stex_alloc_req(struct st_hba *hba)
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{
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struct req_msg *req = ((struct req_msg *)hba->dma_mem) +
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hba->req_head;
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struct req_msg *req = hba->dma_mem + hba->req_head * hba->rq_size;
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++hba->req_head;
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hba->req_head %= MU_REQ_COUNT;
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hba->req_head %= hba->rq_count+1;
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return req;
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}
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@ -653,7 +647,7 @@ static void stex_mu_intr(struct st_hba *hba, u32 doorbell)
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/* status payloads */
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hba->status_head = readl(base + OMR1);
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if (unlikely(hba->status_head >= MU_STATUS_COUNT)) {
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if (unlikely(hba->status_head > hba->sts_count)) {
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printk(KERN_WARNING DRV_NAME "(%s): invalid status head\n",
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pci_name(hba->pdev));
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return;
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@ -789,19 +783,19 @@ static int stex_handshake(struct st_hba *hba)
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h = (struct handshake_frame *)hba->status_buffer;
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h->rb_phy = cpu_to_le64(hba->dma_handle);
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h->req_sz = cpu_to_le16(sizeof(struct req_msg));
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h->req_cnt = cpu_to_le16(MU_REQ_COUNT);
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h->req_sz = cpu_to_le16(hba->rq_size);
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h->req_cnt = cpu_to_le16(hba->rq_count+1);
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h->status_sz = cpu_to_le16(sizeof(struct status_msg));
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h->status_cnt = cpu_to_le16(MU_STATUS_COUNT);
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h->status_cnt = cpu_to_le16(hba->sts_count+1);
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stex_gettime(&h->hosttime);
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h->partner_type = HMU_PARTNER_TYPE;
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if (hba->dma_size > STEX_BUFFER_SIZE) {
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h->extra_offset = cpu_to_le32(STEX_BUFFER_SIZE);
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if (hba->extra_offset) {
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h->extra_offset = cpu_to_le32(hba->extra_offset);
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h->extra_size = cpu_to_le32(ST_ADDITIONAL_MEM);
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} else
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h->extra_offset = h->extra_size = 0;
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status_phys = hba->dma_handle + MU_REQ_BUFFER_SIZE;
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status_phys = hba->dma_handle + (hba->rq_count+1) * hba->rq_size;
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writel(status_phys, base + IMR0);
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readl(base + IMR0);
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writel((status_phys >> 16) >> 16, base + IMR1);
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@ -1026,10 +1020,72 @@ static struct scsi_host_template driver_template = {
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.slave_destroy = stex_slave_destroy,
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.eh_abort_handler = stex_abort,
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.eh_host_reset_handler = stex_reset,
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.can_queue = ST_CAN_QUEUE,
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.this_id = -1,
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.sg_tablesize = ST_MAX_SG,
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.cmd_per_lun = ST_CMD_PER_LUN,
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};
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static struct pci_device_id stex_pci_tbl[] = {
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/* st_shasta */
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{ 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
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st_shasta }, /* SuperTrak EX8350/8300/16350/16300 */
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{ 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
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st_shasta }, /* SuperTrak EX12350 */
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{ 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
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st_shasta }, /* SuperTrak EX4350 */
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{ 0x105a, 0xe350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
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st_shasta }, /* SuperTrak EX24350 */
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/* st_vsc */
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{ 0x105a, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },
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/* st_yosemite */
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{ 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_yosemite },
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/* st_seq */
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{ 0x105a, 0x3360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_seq },
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{ } /* terminate list */
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};
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static struct st_card_info stex_card_info[] = {
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/* st_shasta */
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{
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.max_id = 17,
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.max_lun = 8,
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.max_channel = 0,
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.rq_count = 32,
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.rq_size = 1048,
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.sts_count = 32,
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},
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/* st_vsc */
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{
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.max_id = 129,
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.max_lun = 1,
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.max_channel = 0,
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.rq_count = 32,
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.rq_size = 1048,
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.sts_count = 32,
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},
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/* st_yosemite */
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{
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.max_id = 2,
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.max_lun = 256,
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.max_channel = 0,
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.rq_count = 256,
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.rq_size = 1048,
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.sts_count = 256,
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},
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/* st_seq */
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{
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.max_id = 129,
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.max_lun = 1,
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.max_channel = 0,
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.rq_count = 32,
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.rq_size = 1048,
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.sts_count = 32,
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},
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};
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static int stex_set_dma_mask(struct pci_dev * pdev)
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@ -1084,6 +1140,8 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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{
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struct st_hba *hba;
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struct Scsi_Host *host;
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const struct st_card_info *ci = NULL;
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u32 sts_offset, cp_offset;
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int err;
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err = pci_enable_device(pdev);
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@ -1127,10 +1185,15 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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}
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hba->cardtype = (unsigned int) id->driver_data;
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if (hba->cardtype == st_vsc && (pdev->subsystem_device & 1))
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hba->cardtype = st_vsc1;
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hba->dma_size = (hba->cardtype == st_vsc1 || hba->cardtype == st_seq) ?
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(STEX_BUFFER_SIZE + ST_ADDITIONAL_MEM) : (STEX_BUFFER_SIZE);
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ci = &stex_card_info[hba->cardtype];
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sts_offset = (ci->rq_count+1) * ci->rq_size;
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cp_offset = sts_offset + (ci->sts_count+1) * sizeof(struct status_msg);
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hba->dma_size = cp_offset + sizeof(struct st_frame);
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if (hba->cardtype == st_seq ||
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(hba->cardtype == st_vsc && (pdev->subsystem_device & 1))) {
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hba->extra_offset = hba->dma_size;
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hba->dma_size += ST_ADDITIONAL_MEM;
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}
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hba->dma_mem = dma_alloc_coherent(&pdev->dev,
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hba->dma_size, &hba->dma_handle, GFP_KERNEL);
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if (!hba->dma_mem) {
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@ -1140,23 +1203,26 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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goto out_iounmap;
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}
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hba->status_buffer =
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(struct status_msg *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);
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hba->copy_buffer = hba->dma_mem + MU_BUFFER_SIZE;
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hba->ccb = kcalloc(ci->rq_count, sizeof(struct st_ccb), GFP_KERNEL);
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if (!hba->ccb) {
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err = -ENOMEM;
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printk(KERN_ERR DRV_NAME "(%s): ccb alloc failed\n",
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pci_name(pdev));
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goto out_pci_free;
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}
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hba->status_buffer = (struct status_msg *)(hba->dma_mem + sts_offset);
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hba->copy_buffer = hba->dma_mem + cp_offset;
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hba->rq_count = ci->rq_count;
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hba->rq_size = ci->rq_size;
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hba->sts_count = ci->sts_count;
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hba->mu_status = MU_STATE_STARTING;
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if (hba->cardtype == st_shasta) {
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host->max_lun = 8;
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host->max_id = 16 + 1;
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} else if (hba->cardtype == st_yosemite) {
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host->max_lun = 256;
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host->max_id = 1 + 1;
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} else {
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/* st_vsc , st_vsc1 and st_seq */
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host->max_lun = 1;
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host->max_id = 128 + 1;
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}
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host->max_channel = 0;
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host->can_queue = ci->rq_count;
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host->cmd_per_lun = ci->rq_count;
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host->max_id = ci->max_id;
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host->max_lun = ci->max_lun;
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host->max_channel = ci->max_channel;
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host->unique_id = host->host_no;
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host->max_cmd_len = STEX_CDB_LENGTH;
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@ -1167,7 +1233,7 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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if (err) {
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printk(KERN_ERR DRV_NAME "(%s): request irq failed\n",
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pci_name(pdev));
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goto out_pci_free;
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goto out_ccb_free;
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}
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err = stex_handshake(hba);
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@ -1196,6 +1262,8 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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out_free_irq:
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stex_free_irq(hba);
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out_ccb_free:
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kfree(hba->ccb);
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out_pci_free:
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dma_free_coherent(&pdev->dev, hba->dma_size,
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hba->dma_mem, hba->dma_handle);
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@ -1260,6 +1328,8 @@ static void stex_hba_free(struct st_hba *hba)
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pci_release_regions(hba->pdev);
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kfree(hba->ccb);
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dma_free_coherent(&hba->pdev->dev, hba->dma_size,
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hba->dma_mem, hba->dma_handle);
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}
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@ -1288,27 +1358,6 @@ static void stex_shutdown(struct pci_dev *pdev)
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stex_hba_stop(hba);
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}
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static struct pci_device_id stex_pci_tbl[] = {
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/* st_shasta */
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{ 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
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st_shasta }, /* SuperTrak EX8350/8300/16350/16300 */
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{ 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
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st_shasta }, /* SuperTrak EX12350 */
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{ 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
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st_shasta }, /* SuperTrak EX4350 */
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{ 0x105a, 0xe350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
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st_shasta }, /* SuperTrak EX24350 */
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/* st_vsc */
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{ 0x105a, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },
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/* st_yosemite */
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{ 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_yosemite },
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/* st_seq */
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{ 0x105a, 0x3360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_seq },
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{ } /* terminate list */
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};
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MODULE_DEVICE_TABLE(pci, stex_pci_tbl);
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static struct pci_driver stex_pci_driver = {
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