[linux.git] / drivers / scsi / jazz_esp.c

/*
 * jazz_esp.c: Driver for SCSI chip on Mips Magnum Boards (JAZZ architecture)
 *
 * Copyright (C) 1997 Thomas Bogendoerfer ([email protected])
 *
 * jazz_esp is based on David S. Miller's ESP driver and cyber_esp
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>

#include "scsi.h"
#include <scsi/scsi_host.h>
#include "NCR53C9x.h"

#include <asm/irq.h>
#include <asm/jazz.h>
#include <asm/jazzdma.h>
#include <asm/dma.h>

#include <asm/pgtable.h>

static int  dma_bytes_sent(struct NCR_ESP *esp, int fifo_count);
static int  dma_can_transfer(struct NCR_ESP *esp, struct scsi_cmnd *sp);
static void dma_dump_state(struct NCR_ESP *esp);
static void dma_init_read(struct NCR_ESP *esp, __u32 vaddress, int length);
static void dma_init_write(struct NCR_ESP *esp, __u32 vaddress, int length);
static void dma_ints_off(struct NCR_ESP *esp);
static void dma_ints_on(struct NCR_ESP *esp);
static int  dma_irq_p(struct NCR_ESP *esp);
static int  dma_ports_p(struct NCR_ESP *esp);
static void dma_setup(struct NCR_ESP *esp, __u32 addr, int count, int write);
static void dma_mmu_get_scsi_one (struct NCR_ESP *esp, struct scsi_cmnd *sp);
static void dma_mmu_get_scsi_sgl (struct NCR_ESP *esp, struct scsi_cmnd *sp);
static void dma_mmu_release_scsi_one (struct NCR_ESP *esp, struct scsi_cmnd *sp);
static void dma_mmu_release_scsi_sgl (struct NCR_ESP *esp, struct scsi_cmnd *sp);
static void dma_advance_sg (struct scsi_cmnd *sp);
static void dma_led_off(struct NCR_ESP *);
static void dma_led_on(struct NCR_ESP *);


static volatile unsigned char cmd_buffer[16];
				/* This is where all commands are put
				 * before they are trasfered to the ESP chip
				 * via PIO.
				 */

int jazz_esp_detect(struct scsi_host_template *tpnt);
static int jazz_esp_release(struct Scsi_Host *shost)
{
	if (shost->irq)
		free_irq(shost->irq, NULL);
	if (shost->dma_channel != 0xff)
		free_dma(shost->dma_channel);
	if (shost->io_port && shost->n_io_port)
		release_region(shost->io_port, shost->n_io_port);
	scsi_unregister(shost);
	return 0;
}

static struct scsi_host_template driver_template = {
	.proc_name		= "jazz_esp",
	.proc_info		= &esp_proc_info,
	.name			= "ESP 100/100a/200",
	.detect			= jazz_esp_detect,
	.slave_alloc		= esp_slave_alloc,
	.slave_destroy		= esp_slave_destroy,
	.release		= jazz_esp_release,
	.info			= esp_info,
	.queuecommand		= esp_queue,
	.eh_abort_handler	= esp_abort,
	.eh_bus_reset_handler	= esp_reset,
	.can_queue		= 7,
	.this_id		= 7,
	.sg_tablesize		= SG_ALL,
	.cmd_per_lun		= 1,
	.use_clustering		= DISABLE_CLUSTERING,
};

#include "scsi_module.c"

/***************************************************************** Detection */
static int jazz_esp_detect(struct scsi_host_template *tpnt)
{
    struct NCR_ESP *esp;
    struct ConfigDev *esp_dev;

    /*
     * first assumption it is there:-)
     */
    if (1) {
	esp_dev = 0;
	esp = esp_allocate(tpnt, (void *) esp_dev);
	
	/* Do command transfer with programmed I/O */
	esp->do_pio_cmds = 1;
	
	/* Required functions */
	esp->dma_bytes_sent = &dma_bytes_sent;
	esp->dma_can_transfer = &dma_can_transfer;
	esp->dma_dump_state = &dma_dump_state;
	esp->dma_init_read = &dma_init_read;
	esp->dma_init_write = &dma_init_write;
	esp->dma_ints_off = &dma_ints_off;
	esp->dma_ints_on = &dma_ints_on;
	esp->dma_irq_p = &dma_irq_p;
	esp->dma_ports_p = &dma_ports_p;
	esp->dma_setup = &dma_setup;

	/* Optional functions */
	esp->dma_barrier = 0;
	esp->dma_drain = 0;
	esp->dma_invalidate = 0;
	esp->dma_irq_entry = 0;
	esp->dma_irq_exit = 0;
	esp->dma_poll = 0;
	esp->dma_reset = 0;
	esp->dma_led_off = &dma_led_off;
	esp->dma_led_on = &dma_led_on;
	
	/* virtual DMA functions */
	esp->dma_mmu_get_scsi_one = &dma_mmu_get_scsi_one;
	esp->dma_mmu_get_scsi_sgl = &dma_mmu_get_scsi_sgl;
	esp->dma_mmu_release_scsi_one = &dma_mmu_release_scsi_one;
	esp->dma_mmu_release_scsi_sgl = &dma_mmu_release_scsi_sgl;
	esp->dma_advance_sg = &dma_advance_sg;


	/* SCSI chip speed */
	esp->cfreq = 40000000;

	/* 
	 * we don't give the address of DMA channel, but the number
	 * of DMA channel, so we can use the jazz DMA functions
	 * 
	 */
	esp->dregs = JAZZ_SCSI_DMA;
	
	/* ESP register base */
	esp->eregs = (struct ESP_regs *)(JAZZ_SCSI_BASE);
	
	/* Set the command buffer */
	esp->esp_command = (volatile unsigned char *)cmd_buffer;
	
	/* get virtual dma address for command buffer */
	esp->esp_command_dvma = vdma_alloc(CPHYSADDR(cmd_buffer), sizeof (cmd_buffer));
	
	esp->irq = JAZZ_SCSI_IRQ;
	request_irq(JAZZ_SCSI_IRQ, esp_intr, SA_INTERRUPT, "JAZZ SCSI",
	            esp->ehost);

	/*
	 * FIXME, look if the scsi id is available from NVRAM
	 */
	esp->scsi_id = 7;
		
	/* Check for differential SCSI-bus */
	/* What is this stuff? */
	esp->diff = 0;

	esp_initialize(esp);
	
	printk("ESP: Total of %d ESP hosts found, %d actually in use.\n", nesps,esps_in_use);
	esps_running = esps_in_use;
	return esps_in_use;
    }
    return 0;
}

/************************************************************* DMA Functions */
static int dma_bytes_sent(struct NCR_ESP *esp, int fifo_count)
{
    return fifo_count;
}

static int dma_can_transfer(struct NCR_ESP *esp, struct scsi_cmnd *sp)
{
    /*
     * maximum DMA size is 1MB
     */
    unsigned long sz = sp->SCp.this_residual;
    if(sz > 0x100000)
	sz = 0x100000;
    return sz;
}

static void dma_dump_state(struct NCR_ESP *esp)
{
    
    ESPLOG(("esp%d: dma -- enable <%08x> residue <%08x\n",
	    esp->esp_id, vdma_get_enable((int)esp->dregs), vdma_get_residue((int)esp->dregs)));
}

static void dma_init_read(struct NCR_ESP *esp, __u32 vaddress, int length)
{
    dma_cache_wback_inv ((unsigned long)phys_to_virt(vdma_log2phys(vaddress)), length);
    vdma_disable ((int)esp->dregs);
    vdma_set_mode ((int)esp->dregs, DMA_MODE_READ);
    vdma_set_addr ((int)esp->dregs, vaddress);
    vdma_set_count ((int)esp->dregs, length);
    vdma_enable ((int)esp->dregs);
}

static void dma_init_write(struct NCR_ESP *esp, __u32 vaddress, int length)
{
    dma_cache_wback_inv ((unsigned long)phys_to_virt(vdma_log2phys(vaddress)), length);    
    vdma_disable ((int)esp->dregs);    
    vdma_set_mode ((int)esp->dregs, DMA_MODE_WRITE);
    vdma_set_addr ((int)esp->dregs, vaddress);
    vdma_set_count ((int)esp->dregs, length);
    vdma_enable ((int)esp->dregs);    
}

static void dma_ints_off(struct NCR_ESP *esp)
{
    disable_irq(esp->irq);
}

static void dma_ints_on(struct NCR_ESP *esp)
{
    enable_irq(esp->irq);
}

static int dma_irq_p(struct NCR_ESP *esp)
{
    return (esp_read(esp->eregs->esp_status) & ESP_STAT_INTR);
}

static int dma_ports_p(struct NCR_ESP *esp)
{
    int enable = vdma_get_enable((int)esp->dregs);
    
    return (enable & R4030_CHNL_ENABLE);
}

static void dma_setup(struct NCR_ESP *esp, __u32 addr, int count, int write)
{
    /* 
     * On the Sparc, DMA_ST_WRITE means "move data from device to memory"
     * so when (write) is true, it actually means READ!
     */
    if(write){
	dma_init_read(esp, addr, count);
    } else {
	dma_init_write(esp, addr, count);
    }
}

static void dma_mmu_get_scsi_one (struct NCR_ESP *esp, struct scsi_cmnd *sp)
{
    sp->SCp.have_data_in = vdma_alloc(CPHYSADDR(sp->SCp.buffer), sp->SCp.this_residual);
    sp->SCp.ptr = (char *)((unsigned long)sp->SCp.have_data_in);
}

static void dma_mmu_get_scsi_sgl (struct NCR_ESP *esp, struct scsi_cmnd *sp)
{
    int sz = sp->SCp.buffers_residual;
    struct scatterlist *sg = (struct scatterlist *) sp->SCp.buffer;
    
    while (sz >= 0) {
	sg[sz].dma_address = vdma_alloc(CPHYSADDR(page_address(sg[sz].page) + sg[sz].offset), sg[sz].length);
	sz--;
    }
    sp->SCp.ptr=(char *)(sp->SCp.buffer->dma_address);
}    

static void dma_mmu_release_scsi_one (struct NCR_ESP *esp, struct scsi_cmnd *sp)
{
    vdma_free(sp->SCp.have_data_in);
}

static void dma_mmu_release_scsi_sgl (struct NCR_ESP *esp, struct scsi_cmnd *sp)
{
    int sz = sp->use_sg - 1;
    struct scatterlist *sg = (struct scatterlist *)sp->buffer;
			
    while(sz >= 0) {
	vdma_free(sg[sz].dma_address);
	sz--;
    }
}

static void dma_advance_sg (struct scsi_cmnd *sp)
{
    sp->SCp.ptr = (char *)(sp->SCp.buffer->dma_address);
}

#define JAZZ_HDC_LED   0xe000d100 /* FIXME, find correct address */

static void dma_led_off(struct NCR_ESP *esp)
{
#if 0    
    *(unsigned char *)JAZZ_HDC_LED = 0;
#endif    
}

static void dma_led_on(struct NCR_ESP *esp)
{    
#if 0    
    *(unsigned char *)JAZZ_HDC_LED = 1;
#endif    
}

static struct scsi_host_template driver_template = {
	.proc_name		= "jazz_esp",
	.proc_info		= esp_proc_info,
	.name			= "ESP 100/100a/200",
	.detect			= jazz_esp_detect,
	.slave_alloc		= esp_slave_alloc,
	.slave_destroy		= esp_slave_destroy,
	.release		= jazz_esp_release,
	.info			= esp_info,
	.queuecommand		= esp_queue,
	.eh_abort_handler	= esp_abort,
	.eh_bus_reset_handler	= esp_reset,
	.can_queue		= 7,
	.this_id		= 7,
	.sg_tablesize		= SG_ALL,
	.cmd_per_lun		= 1,
	.use_clustering		= DISABLE_CLUSTERING,
};
#include "scsi_module.c"
Commit	Line	Data
1da177e4 LT	1	/*
	2	* jazz_esp.c: Driver for SCSI chip on Mips Magnum Boards (JAZZ architecture)
	3	*
	4	* Copyright (C) 1997 Thomas Bogendoerfer ([email protected])
	5	*
	6	* jazz_esp is based on David S. Miller's ESP driver and cyber_esp
	7	*/
	8
	9	#include <linux/init.h>
	10	#include <linux/kernel.h>
	11	#include <linux/delay.h>
	12	#include <linux/types.h>
	13	#include <linux/string.h>
	14	#include <linux/slab.h>
	15	#include <linux/blkdev.h>
	16	#include <linux/proc_fs.h>
	17	#include <linux/stat.h>
	18
	19	#include "scsi.h"
	20	#include <scsi/scsi_host.h>
	21	#include "NCR53C9x.h"
	22
	23	#include <asm/irq.h>
	24	#include <asm/jazz.h>
	25	#include <asm/jazzdma.h>
	26	#include <asm/dma.h>
	27
	28	#include <asm/pgtable.h>
	29
	30	static int dma_bytes_sent(struct NCR_ESP *esp, int fifo_count);
	31	static int dma_can_transfer(struct NCR_ESP esp, struct scsi_cmnd sp);
	32	static void dma_dump_state(struct NCR_ESP *esp);
	33	static void dma_init_read(struct NCR_ESP *esp, __u32 vaddress, int length);
	34	static void dma_init_write(struct NCR_ESP *esp, __u32 vaddress, int length);
	35	static void dma_ints_off(struct NCR_ESP *esp);
	36	static void dma_ints_on(struct NCR_ESP *esp);
	37	static int dma_irq_p(struct NCR_ESP *esp);
	38	static int dma_ports_p(struct NCR_ESP *esp);
	39	static void dma_setup(struct NCR_ESP *esp, __u32 addr, int count, int write);
	40	static void dma_mmu_get_scsi_one (struct NCR_ESP esp, struct scsi_cmnd sp);
	41	static void dma_mmu_get_scsi_sgl (struct NCR_ESP esp, struct scsi_cmnd sp);
	42	static void dma_mmu_release_scsi_one (struct NCR_ESP esp, struct scsi_cmnd sp);
	43	static void dma_mmu_release_scsi_sgl (struct NCR_ESP esp, struct scsi_cmnd sp);
	44	static void dma_advance_sg (struct scsi_cmnd *sp);
	45	static void dma_led_off(struct NCR_ESP *);
	46	static void dma_led_on(struct NCR_ESP *);
	47
	48
	49	static volatile unsigned char cmd_buffer[16];
	50	/* This is where all commands are put
	51	* before they are trasfered to the ESP chip
	52	* via PIO.
	53	*/
	54
d0be4a7d	55	int jazz_esp_detect(struct scsi_host_template *tpnt);
1da177e4 LT	56	static int jazz_esp_release(struct Scsi_Host *shost)
	57	{
	58	if (shost->irq)
	59	free_irq(shost->irq, NULL);
	60	if (shost->dma_channel != 0xff)
	61	free_dma(shost->dma_channel);
	62	if (shost->io_port && shost->n_io_port)
	63	release_region(shost->io_port, shost->n_io_port);
	64	scsi_unregister(shost);
	65	return 0;
	66	}
	67
d0be4a7d	68	static struct scsi_host_template driver_template = {
1da177e4 LT	69	.proc_name = "jazz_esp",
	70	.proc_info = &esp_proc_info,
	71	.name = "ESP 100/100a/200",
	72	.detect = jazz_esp_detect,
	73	.slave_alloc = esp_slave_alloc,
	74	.slave_destroy = esp_slave_destroy,
	75	.release = jazz_esp_release,
	76	.info = esp_info,
	77	.queuecommand = esp_queue,
	78	.eh_abort_handler = esp_abort,
	79	.eh_bus_reset_handler = esp_reset,
	80	.can_queue = 7,
	81	.this_id = 7,
	82	.sg_tablesize = SG_ALL,
	83	.cmd_per_lun = 1,
	84	.use_clustering = DISABLE_CLUSTERING,
	85	};
	86
	87	#include "scsi_module.c"
	88
	89	/***************************************************************** Detection */
	90	static int jazz_esp_detect(struct scsi_host_template *tpnt)
	91	{
	92	struct NCR_ESP *esp;
	93	struct ConfigDev *esp_dev;
	94
	95	/*
	96	* first assumption it is there:-)
	97	*/
	98	if (1) {
	99	esp_dev = 0;
	100	esp = esp_allocate(tpnt, (void *) esp_dev);
	101
	102	/* Do command transfer with programmed I/O */
	103	esp->do_pio_cmds = 1;
	104
	105	/* Required functions */
	106	esp->dma_bytes_sent = &dma_bytes_sent;
	107	esp->dma_can_transfer = &dma_can_transfer;
	108	esp->dma_dump_state = &dma_dump_state;
	109	esp->dma_init_read = &dma_init_read;
	110	esp->dma_init_write = &dma_init_write;
	111	esp->dma_ints_off = &dma_ints_off;
	112	esp->dma_ints_on = &dma_ints_on;
	113	esp->dma_irq_p = &dma_irq_p;
	114	esp->dma_ports_p = &dma_ports_p;
	115	esp->dma_setup = &dma_setup;
	116
	117	/* Optional functions */
	118	esp->dma_barrier = 0;
	119	esp->dma_drain = 0;
	120	esp->dma_invalidate = 0;
	121	esp->dma_irq_entry = 0;
	122	esp->dma_irq_exit = 0;
	123	esp->dma_poll = 0;
	124	esp->dma_reset = 0;
	125	esp->dma_led_off = &dma_led_off;
	126	esp->dma_led_on = &dma_led_on;
	127
	128	/* virtual DMA functions */
	129	esp->dma_mmu_get_scsi_one = &dma_mmu_get_scsi_one;
	130	esp->dma_mmu_get_scsi_sgl = &dma_mmu_get_scsi_sgl;
	131	esp->dma_mmu_release_scsi_one = &dma_mmu_release_scsi_one;
	132	esp->dma_mmu_release_scsi_sgl = &dma_mmu_release_scsi_sgl;
133	esp->dma_advance_sg = &dma_advance_sg;
134
135
136	/* SCSI chip speed */
137	esp->cfreq = 40000000;
138
139	/*
140	* we don't give the address of DMA channel, but the number
141	* of DMA channel, so we can use the jazz DMA functions
142	*
143	*/
144	esp->dregs = JAZZ_SCSI_DMA;
145
146	/* ESP register base */
147	esp->eregs = (struct ESP_regs *)(JAZZ_SCSI_BASE);
148
149	/* Set the command buffer */
150	esp->esp_command = (volatile unsigned char *)cmd_buffer;
151
152	/* get virtual dma address for command buffer */
153	esp->esp_command_dvma = vdma_alloc(CPHYSADDR(cmd_buffer), sizeof (cmd_buffer));
154
155	esp->irq = JAZZ_SCSI_IRQ;
156	request_irq(JAZZ_SCSI_IRQ, esp_intr, SA_INTERRUPT, "JAZZ SCSI",
157	esp->ehost);
158
159	/*
160	* FIXME, look if the scsi id is available from NVRAM
161	*/
162	esp->scsi_id = 7;
163
164	/* Check for differential SCSI-bus */
165	/* What is this stuff? */
166	esp->diff = 0;
167
168	esp_initialize(esp);
169
170	printk("ESP: Total of %d ESP hosts found, %d actually in use.\n", nesps,esps_in_use);
171	esps_running = esps_in_use;
172	return esps_in_use;
173	}
174	return 0;
175	}
176
177	/************************************************************* DMA Functions */
178	static int dma_bytes_sent(struct NCR_ESP *esp, int fifo_count)
179	{
180	return fifo_count;
181	}
182
183	static int dma_can_transfer(struct NCR_ESP esp, struct scsi_cmnd sp)
184	{
185	/*
186	* maximum DMA size is 1MB
187	*/
188	unsigned long sz = sp->SCp.this_residual;
189	if(sz > 0x100000)
190	sz = 0x100000;
191	return sz;
192	}
193
194	static void dma_dump_state(struct NCR_ESP *esp)
195	{
196
197	ESPLOG(("esp%d: dma -- enable <%08x> residue <%08x\n",
198	esp->esp_id, vdma_get_enable((int)esp->dregs), vdma_get_residue((int)esp->dregs)));
199	}
200
201	static void dma_init_read(struct NCR_ESP *esp, __u32 vaddress, int length)
202	{
203	dma_cache_wback_inv ((unsigned long)phys_to_virt(vdma_log2phys(vaddress)), length);
204	vdma_disable ((int)esp->dregs);
205	vdma_set_mode ((int)esp->dregs, DMA_MODE_READ);
206	vdma_set_addr ((int)esp->dregs, vaddress);
207	vdma_set_count ((int)esp->dregs, length);
208	vdma_enable ((int)esp->dregs);
209	}
210
211	static void dma_init_write(struct NCR_ESP *esp, __u32 vaddress, int length)
212	{
213	dma_cache_wback_inv ((unsigned long)phys_to_virt(vdma_log2phys(vaddress)), length);
214	vdma_disable ((int)esp->dregs);
215	vdma_set_mode ((int)esp->dregs, DMA_MODE_WRITE);
216	vdma_set_addr ((int)esp->dregs, vaddress);
217	vdma_set_count ((int)esp->dregs, length);
218	vdma_enable ((int)esp->dregs);
219	}
220
221	static void dma_ints_off(struct NCR_ESP *esp)
222	{
223	disable_irq(esp->irq);
224	}
225
226	static void dma_ints_on(struct NCR_ESP *esp)
227	{
228	enable_irq(esp->irq);
229	}
230
231	static int dma_irq_p(struct NCR_ESP *esp)
232	{
233	return (esp_read(esp->eregs->esp_status) & ESP_STAT_INTR);
234	}
235
236	static int dma_ports_p(struct NCR_ESP *esp)
237	{
238	int enable = vdma_get_enable((int)esp->dregs);
239
240	return (enable & R4030_CHNL_ENABLE);
241	}
242
243	static void dma_setup(struct NCR_ESP *esp, __u32 addr, int count, int write)
244	{
245	/*
246	* On the Sparc, DMA_ST_WRITE means "move data from device to memory"
247	* so when (write) is true, it actually means READ!
248	*/
249	if(write){
250	dma_init_read(esp, addr, count);
251	} else {
252	dma_init_write(esp, addr, count);
253	}
254	}
255
256	static void dma_mmu_get_scsi_one (struct NCR_ESP esp, struct scsi_cmnd sp)
257	{
258	sp->SCp.have_data_in = vdma_alloc(CPHYSADDR(sp->SCp.buffer), sp->SCp.this_residual);
259	sp->SCp.ptr = (char *)((unsigned long)sp->SCp.have_data_in);
260	}
261
262	static void dma_mmu_get_scsi_sgl (struct NCR_ESP esp, struct scsi_cmnd sp)
263	{
264	int sz = sp->SCp.buffers_residual;
265	struct scatterlist sg = (struct scatterlist ) sp->SCp.buffer;
266
267	while (sz >= 0) {
268	sg[sz].dma_address = vdma_alloc(CPHYSADDR(page_address(sg[sz].page) + sg[sz].offset), sg[sz].length);
269	sz--;
270	}
271	sp->SCp.ptr=(char *)(sp->SCp.buffer->dma_address);
272	}
273
274	static void dma_mmu_release_scsi_one (struct NCR_ESP esp, struct scsi_cmnd sp)
275	{
276	vdma_free(sp->SCp.have_data_in);
277	}
278
279	static void dma_mmu_release_scsi_sgl (struct NCR_ESP esp, struct scsi_cmnd sp)
280	{
281	int sz = sp->use_sg - 1;
282	struct scatterlist sg = (struct scatterlist )sp->buffer;
283
284	while(sz >= 0) {
285	vdma_free(sg[sz].dma_address);
286	sz--;
287	}
288	}
289
290	static void dma_advance_sg (struct scsi_cmnd *sp)
291	{
292	sp->SCp.ptr = (char *)(sp->SCp.buffer->dma_address);
293	}
294
295	#define JAZZ_HDC_LED 0xe000d100 /* FIXME, find correct address */
296
297	static void dma_led_off(struct NCR_ESP *esp)
298	{
299	#if 0
300	(unsigned char )JAZZ_HDC_LED = 0;
301	#endif
302	}
303
304	static void dma_led_on(struct NCR_ESP *esp)
305	{
306	#if 0
307	(unsigned char )JAZZ_HDC_LED = 1;
308	#endif
309	}
310
311	static struct scsi_host_template driver_template = {
312	.proc_name = "jazz_esp",
313	.proc_info = esp_proc_info,
314	.name = "ESP 100/100a/200",
315	.detect = jazz_esp_detect,
316	.slave_alloc = esp_slave_alloc,
317	.slave_destroy = esp_slave_destroy,
318	.release = jazz_esp_release,
319	.info = esp_info,
320	.queuecommand = esp_queue,
321	.eh_abort_handler = esp_abort,
322	.eh_bus_reset_handler = esp_reset,
323	.can_queue = 7,
324	.this_id = 7,
325	.sg_tablesize = SG_ALL,
326	.cmd_per_lun = 1,
327	.use_clustering = DISABLE_CLUSTERING,
328	};
329	#include "scsi_module.c"