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Commit 591a3a5f authored by Ed Lin's avatar Ed Lin Committed by James Bottomley
Browse files

[SCSI] stex: use config struct for parameters of different controllers 



Use config struct (st_card_info) for parameters of different controllers

Signed-off-by: default avatarEd Lin <ed.lin@promise.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent 99946f81

drivers/scsi/stex.c

+125 −76
Original line number Diff line number Diff line
@@ -95,19 +95,8 @@ enum { 
	TASK_ATTRIBUTE_ORDERED			= 0x2,

	TASK_ATTRIBUTE_ACA			= 0x4,



	/* request count, etc. */

	MU_MAX_REQUEST				= 32,



	/* one message wasted, use MU_MAX_REQUEST+1

		to handle MU_MAX_REQUEST messages */

	MU_REQ_COUNT				= (MU_MAX_REQUEST + 1),

	MU_STATUS_COUNT				= (MU_MAX_REQUEST + 1),



	STEX_CDB_LENGTH				= 16,

	REQ_VARIABLE_LEN			= 1024,

	STATUS_VAR_LEN				= 128,

	ST_CAN_QUEUE				= MU_MAX_REQUEST,

	ST_CMD_PER_LUN				= MU_MAX_REQUEST,

	ST_MAX_SG				= 32,



	/* sg flags */
@@ -120,9 +109,8 @@ enum { 


	st_shasta				= 0,

	st_vsc					= 1,

	st_vsc1					= 2,

	st_yosemite				= 3,

	st_seq					= 4,

	st_yosemite				= 2,

	st_seq					= 3,



	PASSTHRU_REQ_TYPE			= 0x00000001,

	PASSTHRU_REQ_NO_WAKEUP			= 0x00000100,
@@ -196,7 +184,7 @@ struct req_msg { 
	u8 data_dir;

	u8 payload_sz;		/* payload size in 4-byte, not used */

	u8 cdb[STEX_CDB_LENGTH];

	u8 variable[REQ_VARIABLE_LEN];

	u32 variable[0];

};



struct status_msg {
@@ -252,12 +240,6 @@ struct st_drvver { 
	u32 reserved[3];

};



#define MU_REQ_BUFFER_SIZE	(MU_REQ_COUNT * sizeof(struct req_msg))

#define MU_STATUS_BUFFER_SIZE	(MU_STATUS_COUNT * sizeof(struct status_msg))

#define MU_BUFFER_SIZE		(MU_REQ_BUFFER_SIZE + MU_STATUS_BUFFER_SIZE)

#define STEX_EXTRA_SIZE		sizeof(struct st_frame)

#define STEX_BUFFER_SIZE	(MU_BUFFER_SIZE + STEX_EXTRA_SIZE)



struct st_ccb {

	struct req_msg *req;

	struct scsi_cmnd *cmd;
@@ -288,13 +270,26 @@ struct st_hba { 


	struct status_msg *status_buffer;

	void *copy_buffer; /* temp buffer for driver-handled commands */

	struct st_ccb ccb[MU_MAX_REQUEST];

	struct st_ccb *ccb;

	struct st_ccb *wait_ccb;



	unsigned int mu_status;

	unsigned int cardtype;

	int msi_enabled;

	int out_req_cnt;

	u32 extra_offset;

	u16 rq_count;

	u16 rq_size;

	u16 sts_count;

};



struct st_card_info {

	unsigned int max_id;

	unsigned int max_lun;

	unsigned int max_channel;

	u16 rq_count;

	u16 rq_size;

	u16 sts_count;

};



static int msi;
@@ -331,7 +326,7 @@ static struct status_msg *stex_get_status(struct st_hba *hba) 
	struct status_msg *status = hba->status_buffer + hba->status_tail;



	++hba->status_tail;

	hba->status_tail %= MU_STATUS_COUNT;

	hba->status_tail %= hba->sts_count+1;



	return status;

}
@@ -349,11 +344,10 @@ static void stex_invalid_field(struct scsi_cmnd *cmd, 


static struct req_msg *stex_alloc_req(struct st_hba *hba)

{

	struct req_msg *req = ((struct req_msg *)hba->dma_mem) +

		hba->req_head;

	struct req_msg *req = hba->dma_mem + hba->req_head * hba->rq_size;



	++hba->req_head;

	hba->req_head %= MU_REQ_COUNT;

	hba->req_head %= hba->rq_count+1;



	return req;

}
@@ -653,7 +647,7 @@ static void stex_mu_intr(struct st_hba *hba, u32 doorbell) 


	/* status payloads */

	hba->status_head = readl(base + OMR1);

	if (unlikely(hba->status_head >= MU_STATUS_COUNT)) {

	if (unlikely(hba->status_head > hba->sts_count)) {

		printk(KERN_WARNING DRV_NAME "(%s): invalid status head\n",

			pci_name(hba->pdev));

		return;
@@ -789,19 +783,19 @@ static int stex_handshake(struct st_hba *hba) 


	h = (struct handshake_frame *)hba->status_buffer;

	h->rb_phy = cpu_to_le64(hba->dma_handle);

	h->req_sz = cpu_to_le16(sizeof(struct req_msg));

	h->req_cnt = cpu_to_le16(MU_REQ_COUNT);

	h->req_sz = cpu_to_le16(hba->rq_size);

	h->req_cnt = cpu_to_le16(hba->rq_count+1);

	h->status_sz = cpu_to_le16(sizeof(struct status_msg));

	h->status_cnt = cpu_to_le16(MU_STATUS_COUNT);

	h->status_cnt = cpu_to_le16(hba->sts_count+1);

	stex_gettime(&h->hosttime);

	h->partner_type = HMU_PARTNER_TYPE;

	if (hba->dma_size > STEX_BUFFER_SIZE) {

		h->extra_offset = cpu_to_le32(STEX_BUFFER_SIZE);

	if (hba->extra_offset) {

		h->extra_offset = cpu_to_le32(hba->extra_offset);

		h->extra_size = cpu_to_le32(ST_ADDITIONAL_MEM);

	} else

		h->extra_offset = h->extra_size = 0;



	status_phys = hba->dma_handle + MU_REQ_BUFFER_SIZE;

	status_phys = hba->dma_handle + (hba->rq_count+1) * hba->rq_size;

	writel(status_phys, base + IMR0);

	readl(base + IMR0);

	writel((status_phys >> 16) >> 16, base + IMR1);
@@ -1026,10 +1020,72 @@ static struct scsi_host_template driver_template = { 
	.slave_destroy			= stex_slave_destroy,

	.eh_abort_handler		= stex_abort,

	.eh_host_reset_handler		= stex_reset,

	.can_queue			= ST_CAN_QUEUE,

	.this_id			= -1,

	.sg_tablesize			= ST_MAX_SG,

	.cmd_per_lun			= ST_CMD_PER_LUN,

};



static struct pci_device_id stex_pci_tbl[] = {

	/* st_shasta */

	{ 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,

		st_shasta }, /* SuperTrak EX8350/8300/16350/16300 */

	{ 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,

		st_shasta }, /* SuperTrak EX12350 */

	{ 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0,

		st_shasta }, /* SuperTrak EX4350 */

	{ 0x105a, 0xe350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,

		st_shasta }, /* SuperTrak EX24350 */



	/* st_vsc */

	{ 0x105a, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },



	/* st_yosemite */

	{ 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_yosemite },



	/* st_seq */

	{ 0x105a, 0x3360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_seq },

	{ }	/* terminate list */

};



static struct st_card_info stex_card_info[] = {

	/* st_shasta */

	{

		.max_id		= 17,

		.max_lun	= 8,

		.max_channel	= 0,

		.rq_count	= 32,

		.rq_size	= 1048,

		.sts_count	= 32,

	},



	/* st_vsc */

	{

		.max_id		= 129,

		.max_lun	= 1,

		.max_channel	= 0,

		.rq_count	= 32,

		.rq_size	= 1048,

		.sts_count	= 32,

	},



	/* st_yosemite */

	{

		.max_id		= 2,

		.max_lun	= 256,

		.max_channel	= 0,

		.rq_count	= 256,

		.rq_size	= 1048,

		.sts_count	= 256,

	},



	/* st_seq */

	{

		.max_id		= 129,

		.max_lun	= 1,

		.max_channel	= 0,

		.rq_count	= 32,

		.rq_size	= 1048,

		.sts_count	= 32,

	},

};



static int stex_set_dma_mask(struct pci_dev * pdev)
@@ -1084,6 +1140,8 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) 
{

	struct st_hba *hba;

	struct Scsi_Host *host;

	const struct st_card_info *ci = NULL;

	u32 sts_offset, cp_offset;

	int err;



	err = pci_enable_device(pdev);
@@ -1127,10 +1185,15 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) 
	}



	hba->cardtype = (unsigned int) id->driver_data;

	if (hba->cardtype == st_vsc && (pdev->subsystem_device & 1))

		hba->cardtype = st_vsc1;

	hba->dma_size = (hba->cardtype == st_vsc1 || hba->cardtype == st_seq) ?

		(STEX_BUFFER_SIZE + ST_ADDITIONAL_MEM) : (STEX_BUFFER_SIZE);

	ci = &stex_card_info[hba->cardtype];

	sts_offset = (ci->rq_count+1) * ci->rq_size;

	cp_offset = sts_offset + (ci->sts_count+1) * sizeof(struct status_msg);

	hba->dma_size = cp_offset + sizeof(struct st_frame);

	if (hba->cardtype == st_seq ||

		(hba->cardtype == st_vsc && (pdev->subsystem_device & 1))) {

		hba->extra_offset = hba->dma_size;

		hba->dma_size += ST_ADDITIONAL_MEM;

	}

	hba->dma_mem = dma_alloc_coherent(&pdev->dev,

		hba->dma_size, &hba->dma_handle, GFP_KERNEL);

	if (!hba->dma_mem) {
@@ -1140,23 +1203,26 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) 
		goto out_iounmap;

	}



	hba->status_buffer =

		(struct status_msg *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);

	hba->copy_buffer = hba->dma_mem + MU_BUFFER_SIZE;

	hba->ccb = kcalloc(ci->rq_count, sizeof(struct st_ccb), GFP_KERNEL);

	if (!hba->ccb) {

		err = -ENOMEM;

		printk(KERN_ERR DRV_NAME "(%s): ccb alloc failed\n",

			pci_name(pdev));

		goto out_pci_free;

	}



	hba->status_buffer = (struct status_msg *)(hba->dma_mem + sts_offset);

	hba->copy_buffer = hba->dma_mem + cp_offset;

	hba->rq_count = ci->rq_count;

	hba->rq_size = ci->rq_size;

	hba->sts_count = ci->sts_count;

	hba->mu_status = MU_STATE_STARTING;



	if (hba->cardtype == st_shasta) {

		host->max_lun = 8;

		host->max_id = 16 + 1;

	} else if (hba->cardtype == st_yosemite) {

		host->max_lun = 256;

		host->max_id = 1 + 1;

	} else {

		/* st_vsc , st_vsc1 and st_seq */

		host->max_lun = 1;

		host->max_id = 128 + 1;

	}

	host->max_channel = 0;

	host->can_queue = ci->rq_count;

	host->cmd_per_lun = ci->rq_count;

	host->max_id = ci->max_id;

	host->max_lun = ci->max_lun;

	host->max_channel = ci->max_channel;

	host->unique_id = host->host_no;

	host->max_cmd_len = STEX_CDB_LENGTH;
@@ -1167,7 +1233,7 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) 
	if (err) {

		printk(KERN_ERR DRV_NAME "(%s): request irq failed\n",

			pci_name(pdev));

		goto out_pci_free;

		goto out_ccb_free;

	}



	err = stex_handshake(hba);
@@ -1196,6 +1262,8 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) 


out_free_irq:

	stex_free_irq(hba);

out_ccb_free:

	kfree(hba->ccb);

out_pci_free:

	dma_free_coherent(&pdev->dev, hba->dma_size,

			  hba->dma_mem, hba->dma_handle);
@@ -1260,6 +1328,8 @@ static void stex_hba_free(struct st_hba *hba) 


	pci_release_regions(hba->pdev);



	kfree(hba->ccb);



	dma_free_coherent(&hba->pdev->dev, hba->dma_size,

			  hba->dma_mem, hba->dma_handle);

}
@@ -1288,27 +1358,6 @@ static void stex_shutdown(struct pci_dev *pdev) 
	stex_hba_stop(hba);

}



static struct pci_device_id stex_pci_tbl[] = {

	/* st_shasta */

	{ 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,

		st_shasta }, /* SuperTrak EX8350/8300/16350/16300 */

	{ 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,

		st_shasta }, /* SuperTrak EX12350 */

	{ 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0,

		st_shasta }, /* SuperTrak EX4350 */

	{ 0x105a, 0xe350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,

		st_shasta }, /* SuperTrak EX24350 */



	/* st_vsc */

	{ 0x105a, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },



	/* st_yosemite */

	{ 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_yosemite },



	/* st_seq */

	{ 0x105a, 0x3360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_seq },

	{ }	/* terminate list */

};

MODULE_DEVICE_TABLE(pci, stex_pci_tbl);



static struct pci_driver stex_pci_driver = {