[PATCH] cciss: support for >2TB logical volumes
Add support for logical volumes >2TB. All SAS/SATA controllers support large volumes. Signed-off-by: Mike Miller <mike.miller@hp.com> Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Mike Miller (OS Dev)
Linus Torvalds
parent
82b0547cfa
commit
00988a3514
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@ -144,13 +144,13 @@ static int rebuild_lun_table(ctlr_info_t *h, struct gendisk *del_disk);
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static int deregister_disk(struct gendisk *disk, drive_info_struct *drv,
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int clear_all);
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static void cciss_read_capacity(int ctlr, int logvol, ReadCapdata_struct *buf,
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int withirq, unsigned int *total_size,
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unsigned int *block_size);
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static void cciss_geometry_inquiry(int ctlr, int logvol, int withirq,
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unsigned int total_size,
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unsigned int block_size,
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InquiryData_struct *inq_buff,
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static void cciss_read_capacity(int ctlr, int logvol, int withirq,
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sector_t *total_size, unsigned int *block_size);
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static void cciss_read_capacity_16(int ctlr, int logvol, int withirq,
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sector_t *total_size, unsigned int *block_size);
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static void cciss_geometry_inquiry(int ctlr, int logvol,
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int withirq, sector_t total_size,
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unsigned int block_size, InquiryData_struct *inq_buff,
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drive_info_struct *drv);
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static void cciss_getgeometry(int cntl_num);
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static void __devinit cciss_interrupt_mode(ctlr_info_t *, struct pci_dev *,
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@ -1325,10 +1325,9 @@ static void cciss_update_drive_info(int ctlr, int drv_index)
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{
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ctlr_info_t *h = hba[ctlr];
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struct gendisk *disk;
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ReadCapdata_struct *size_buff = NULL;
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InquiryData_struct *inq_buff = NULL;
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unsigned int block_size;
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unsigned int total_size;
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sector_t total_size;
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unsigned long flags = 0;
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int ret = 0;
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@ -1347,15 +1346,25 @@ static void cciss_update_drive_info(int ctlr, int drv_index)
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return;
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/* Get information about the disk and modify the driver structure */
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size_buff = kmalloc(sizeof(ReadCapdata_struct), GFP_KERNEL);
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if (size_buff == NULL)
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goto mem_msg;
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inq_buff = kmalloc(sizeof(InquiryData_struct), GFP_KERNEL);
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if (inq_buff == NULL)
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goto mem_msg;
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cciss_read_capacity(ctlr, drv_index, size_buff, 1,
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cciss_read_capacity(ctlr, drv_index, 1,
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&total_size, &block_size);
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/* total size = last LBA + 1 */
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/* FFFFFFFF + 1 = 0, cannot have a logical volume of size 0 */
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/* so we assume this volume this must be >2TB in size */
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if (total_size == (__u32) 0) {
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cciss_read_capacity_16(ctlr, drv_index, 1,
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&total_size, &block_size);
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h->cciss_read = CCISS_READ_16;
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h->cciss_write = CCISS_WRITE_16;
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} else {
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h->cciss_read = CCISS_READ_10;
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h->cciss_write = CCISS_WRITE_10;
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}
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cciss_geometry_inquiry(ctlr, drv_index, 1, total_size, block_size,
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inq_buff, &h->drv[drv_index]);
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@ -1391,7 +1400,6 @@ static void cciss_update_drive_info(int ctlr, int drv_index)
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}
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freeret:
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kfree(size_buff);
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kfree(inq_buff);
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return;
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mem_msg:
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@ -1716,6 +1724,22 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, size_
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c->Request.Timeout = 0;
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c->Request.CDB[0] = cmd;
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break;
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case CCISS_READ_CAPACITY_16:
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c->Header.LUN.LogDev.VolId = h->drv[log_unit].LunID;
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c->Header.LUN.LogDev.Mode = 1;
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c->Request.CDBLen = 16;
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c->Request.Type.Attribute = ATTR_SIMPLE;
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c->Request.Type.Direction = XFER_READ;
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c->Request.Timeout = 0;
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c->Request.CDB[0] = cmd;
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c->Request.CDB[1] = 0x10;
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c->Request.CDB[10] = (size >> 24) & 0xFF;
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c->Request.CDB[11] = (size >> 16) & 0xFF;
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c->Request.CDB[12] = (size >> 8) & 0xFF;
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c->Request.CDB[13] = size & 0xFF;
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c->Request.Timeout = 0;
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c->Request.CDB[0] = cmd;
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break;
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case CCISS_CACHE_FLUSH:
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c->Request.CDBLen = 12;
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c->Request.Type.Attribute = ATTR_SIMPLE;
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@ -1749,6 +1773,7 @@ static int fill_cmd(CommandList_struct *c, __u8 cmd, int ctlr, void *buff, size_
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memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB));
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c->Request.CDB[0] = cmd; /* reset */
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c->Request.CDB[1] = 0x04; /* reset a LUN */
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break;
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case 3: /* No-Op message */
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c->Request.CDBLen = 1;
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c->Request.Type.Attribute = ATTR_SIMPLE;
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@ -1892,12 +1917,15 @@ static int sendcmd_withirq(__u8 cmd,
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}
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static void cciss_geometry_inquiry(int ctlr, int logvol,
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int withirq, unsigned int total_size,
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int withirq, sector_t total_size,
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unsigned int block_size,
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InquiryData_struct *inq_buff,
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drive_info_struct *drv)
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{
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int return_code;
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unsigned long t;
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unsigned long rem;
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memset(inq_buff, 0, sizeof(InquiryData_struct));
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if (withirq)
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return_code = sendcmd_withirq(CISS_INQUIRY, ctlr,
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@ -1916,10 +1944,10 @@ static void cciss_geometry_inquiry(int ctlr, int logvol,
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drv->nr_blocks = total_size;
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drv->heads = 255;
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drv->sectors = 32; // Sectors per track
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drv->cylinders = total_size / 255 / 32;
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t = drv->heads * drv->sectors;
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drv->cylinders = total_size;
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rem = do_div(drv->cylinders, t);
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} else {
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unsigned int t;
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drv->block_size = block_size;
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drv->nr_blocks = total_size;
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drv->heads = inq_buff->data_byte[6];
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@ -1929,7 +1957,8 @@ static void cciss_geometry_inquiry(int ctlr, int logvol,
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drv->raid_level = inq_buff->data_byte[8];
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t = drv->heads * drv->sectors;
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if (t > 1) {
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drv->cylinders = total_size / t;
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drv->cylinders = total_size;
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rem = do_div(drv->cylinders, t);
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}
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}
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} else { /* Get geometry failed */
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@ -1940,31 +1969,72 @@ static void cciss_geometry_inquiry(int ctlr, int logvol,
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}
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static void
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cciss_read_capacity(int ctlr, int logvol, ReadCapdata_struct *buf,
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int withirq, unsigned int *total_size,
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cciss_read_capacity(int ctlr, int logvol, int withirq, sector_t *total_size,
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unsigned int *block_size)
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{
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ReadCapdata_struct *buf;
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int return_code;
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memset(buf, 0, sizeof(*buf));
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buf = kmalloc(sizeof(ReadCapdata_struct), GFP_KERNEL);
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if (buf == NULL) {
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printk(KERN_WARNING "cciss: out of memory\n");
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return;
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}
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memset(buf, 0, sizeof(ReadCapdata_struct));
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if (withirq)
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return_code = sendcmd_withirq(CCISS_READ_CAPACITY,
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ctlr, buf, sizeof(*buf), 1,
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logvol, 0, TYPE_CMD);
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ctlr, buf, sizeof(ReadCapdata_struct),
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1, logvol, 0, TYPE_CMD);
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else
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return_code = sendcmd(CCISS_READ_CAPACITY,
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ctlr, buf, sizeof(*buf), 1, logvol, 0,
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NULL, TYPE_CMD);
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ctlr, buf, sizeof(ReadCapdata_struct),
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1, logvol, 0, NULL, TYPE_CMD);
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if (return_code == IO_OK) {
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*total_size =
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be32_to_cpu(*((__be32 *) & buf->total_size[0])) + 1;
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*block_size = be32_to_cpu(*((__be32 *) & buf->block_size[0]));
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*total_size = be32_to_cpu(*(__u32 *) buf->total_size)+1;
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*block_size = be32_to_cpu(*(__u32 *) buf->block_size);
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} else { /* read capacity command failed */
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printk(KERN_WARNING "cciss: read capacity failed\n");
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*total_size = 0;
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*block_size = BLOCK_SIZE;
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}
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printk(KERN_INFO " blocks= %u block_size= %d\n",
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if (*total_size != (__u32) 0)
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printk(KERN_INFO " blocks= %lld block_size= %d\n",
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*total_size, *block_size);
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kfree(buf);
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return;
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}
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static void
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cciss_read_capacity_16(int ctlr, int logvol, int withirq, sector_t *total_size, unsigned int *block_size)
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{
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ReadCapdata_struct_16 *buf;
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int return_code;
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buf = kmalloc(sizeof(ReadCapdata_struct_16), GFP_KERNEL);
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if (buf == NULL) {
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printk(KERN_WARNING "cciss: out of memory\n");
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return;
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}
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memset(buf, 0, sizeof(ReadCapdata_struct_16));
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if (withirq) {
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return_code = sendcmd_withirq(CCISS_READ_CAPACITY_16,
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ctlr, buf, sizeof(ReadCapdata_struct_16),
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1, logvol, 0, TYPE_CMD);
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}
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else {
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return_code = sendcmd(CCISS_READ_CAPACITY_16,
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ctlr, buf, sizeof(ReadCapdata_struct_16),
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1, logvol, 0, NULL, TYPE_CMD);
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}
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if (return_code == IO_OK) {
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*total_size = be64_to_cpu(*(__u64 *) buf->total_size)+1;
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*block_size = be32_to_cpu(*(__u32 *) buf->block_size);
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} else { /* read capacity command failed */
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printk(KERN_WARNING "cciss: read capacity failed\n");
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*total_size = 0;
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*block_size = BLOCK_SIZE;
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}
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printk(KERN_INFO " blocks= %lld block_size= %d\n",
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*total_size, *block_size);
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kfree(buf);
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return;
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}
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@ -1975,8 +2045,7 @@ static int cciss_revalidate(struct gendisk *disk)
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int logvol;
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int FOUND = 0;
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unsigned int block_size;
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unsigned int total_size;
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ReadCapdata_struct *size_buff = NULL;
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sector_t total_size;
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InquiryData_struct *inq_buff = NULL;
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for (logvol = 0; logvol < CISS_MAX_LUN; logvol++) {
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@ -1989,27 +2058,24 @@ static int cciss_revalidate(struct gendisk *disk)
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if (!FOUND)
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return 1;
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size_buff = kmalloc(sizeof(ReadCapdata_struct), GFP_KERNEL);
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if (size_buff == NULL) {
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printk(KERN_WARNING "cciss: out of memory\n");
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return 1;
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}
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inq_buff = kmalloc(sizeof(InquiryData_struct), GFP_KERNEL);
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if (inq_buff == NULL) {
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printk(KERN_WARNING "cciss: out of memory\n");
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kfree(size_buff);
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return 1;
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}
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cciss_read_capacity(h->ctlr, logvol, size_buff, 1, &total_size,
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&block_size);
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if (h->cciss_read == CCISS_READ_10) {
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cciss_read_capacity(h->ctlr, logvol, 1,
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&total_size, &block_size);
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} else {
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cciss_read_capacity_16(h->ctlr, logvol, 1,
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&total_size, &block_size);
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}
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cciss_geometry_inquiry(h->ctlr, logvol, 1, total_size, block_size,
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inq_buff, drv);
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blk_queue_hardsect_size(drv->queue, drv->block_size);
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set_capacity(disk, drv->nr_blocks);
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kfree(size_buff);
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kfree(inq_buff);
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return 0;
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}
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@ -2418,7 +2484,8 @@ static void do_cciss_request(request_queue_t *q)
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{
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ctlr_info_t *h = q->queuedata;
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CommandList_struct *c;
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int start_blk, seg;
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sector_t start_blk;
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int seg;
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struct request *creq;
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u64bit temp64;
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struct scatterlist tmp_sg[MAXSGENTRIES];
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@ -2462,10 +2529,10 @@ static void do_cciss_request(request_queue_t *q)
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c->Request.Type.Type = TYPE_CMD; // It is a command.
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c->Request.Type.Attribute = ATTR_SIMPLE;
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c->Request.Type.Direction =
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(rq_data_dir(creq) == READ) ? XFER_READ : XFER_WRITE;
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(rq_data_dir(creq) == READ) ? h->cciss_read : h->cciss_write;
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c->Request.Timeout = 0; // Don't time out
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c->Request.CDB[0] =
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(rq_data_dir(creq) == READ) ? CCISS_READ : CCISS_WRITE;
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(rq_data_dir(creq) == READ) ? h->cciss_read : h->cciss_write;
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start_blk = creq->sector;
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#ifdef CCISS_DEBUG
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printk(KERN_DEBUG "ciss: sector =%d nr_sectors=%d\n", (int)creq->sector,
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@ -2499,15 +2566,33 @@ static void do_cciss_request(request_queue_t *q)
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#endif /* CCISS_DEBUG */
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c->Header.SGList = c->Header.SGTotal = seg;
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c->Request.CDB[1] = 0;
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c->Request.CDB[2] = (start_blk >> 24) & 0xff; //MSB
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c->Request.CDB[3] = (start_blk >> 16) & 0xff;
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c->Request.CDB[4] = (start_blk >> 8) & 0xff;
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c->Request.CDB[5] = start_blk & 0xff;
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c->Request.CDB[6] = 0; // (sect >> 24) & 0xff; MSB
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c->Request.CDB[7] = (creq->nr_sectors >> 8) & 0xff;
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c->Request.CDB[8] = creq->nr_sectors & 0xff;
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c->Request.CDB[9] = c->Request.CDB[11] = c->Request.CDB[12] = 0;
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if(h->cciss_read == CCISS_READ_10) {
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c->Request.CDB[1] = 0;
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c->Request.CDB[2] = (start_blk >> 24) & 0xff; //MSB
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c->Request.CDB[3] = (start_blk >> 16) & 0xff;
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c->Request.CDB[4] = (start_blk >> 8) & 0xff;
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c->Request.CDB[5] = start_blk & 0xff;
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c->Request.CDB[6] = 0; // (sect >> 24) & 0xff; MSB
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c->Request.CDB[7] = (creq->nr_sectors >> 8) & 0xff;
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c->Request.CDB[8] = creq->nr_sectors & 0xff;
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c->Request.CDB[9] = c->Request.CDB[11] = c->Request.CDB[12] = 0;
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} else {
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c->Request.CDBLen = 16;
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c->Request.CDB[1]= 0;
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c->Request.CDB[2]= (start_blk >> 56) & 0xff; //MSB
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c->Request.CDB[3]= (start_blk >> 48) & 0xff;
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c->Request.CDB[4]= (start_blk >> 40) & 0xff;
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c->Request.CDB[5]= (start_blk >> 32) & 0xff;
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c->Request.CDB[6]= (start_blk >> 24) & 0xff;
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c->Request.CDB[7]= (start_blk >> 16) & 0xff;
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c->Request.CDB[8]= (start_blk >> 8) & 0xff;
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c->Request.CDB[9]= start_blk & 0xff;
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c->Request.CDB[10]= (creq->nr_sectors >> 24) & 0xff;
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c->Request.CDB[11]= (creq->nr_sectors >> 16) & 0xff;
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c->Request.CDB[12]= (creq->nr_sectors >> 8) & 0xff;
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c->Request.CDB[13]= creq->nr_sectors & 0xff;
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c->Request.CDB[14] = c->Request.CDB[15] = 0;
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}
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spin_lock_irq(q->queue_lock);
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@ -2517,9 +2602,9 @@ static void do_cciss_request(request_queue_t *q)
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h->maxQsinceinit = h->Qdepth;
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goto queue;
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full:
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full:
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blk_stop_queue(q);
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startio:
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startio:
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/* We will already have the driver lock here so not need
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* to lock it.
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*/
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@ -2947,31 +3032,23 @@ static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
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static void cciss_getgeometry(int cntl_num)
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{
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ReportLunData_struct *ld_buff;
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ReadCapdata_struct *size_buff;
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InquiryData_struct *inq_buff;
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int return_code;
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int i;
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int listlength = 0;
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__u32 lunid = 0;
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int block_size;
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int total_size;
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sector_t total_size;
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ld_buff = kzalloc(sizeof(ReportLunData_struct), GFP_KERNEL);
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if (ld_buff == NULL) {
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printk(KERN_ERR "cciss: out of memory\n");
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return;
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}
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size_buff = kmalloc(sizeof(ReadCapdata_struct), GFP_KERNEL);
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if (size_buff == NULL) {
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printk(KERN_ERR "cciss: out of memory\n");
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kfree(ld_buff);
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return;
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}
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inq_buff = kmalloc(sizeof(InquiryData_struct), GFP_KERNEL);
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if (inq_buff == NULL) {
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printk(KERN_ERR "cciss: out of memory\n");
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kfree(ld_buff);
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kfree(size_buff);
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return;
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}
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/* Get the firmware version */
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|
|
@ -3026,7 +3103,6 @@ static void cciss_getgeometry(int cntl_num)
|
|||
#endif /* CCISS_DEBUG */
|
||||
|
||||
hba[cntl_num]->highest_lun = hba[cntl_num]->num_luns - 1;
|
||||
// for(i=0; i< hba[cntl_num]->num_luns; i++)
|
||||
for (i = 0; i < CISS_MAX_LUN; i++) {
|
||||
if (i < hba[cntl_num]->num_luns) {
|
||||
lunid = (0xff & (unsigned int)(ld_buff->LUN[i][3]))
|
||||
|
|
@ -3045,8 +3121,26 @@ static void cciss_getgeometry(int cntl_num)
|
|||
ld_buff->LUN[i][2], ld_buff->LUN[i][3],
|
||||
hba[cntl_num]->drv[i].LunID);
|
||||
#endif /* CCISS_DEBUG */
|
||||
cciss_read_capacity(cntl_num, i, size_buff, 0,
|
||||
|
||||
/* testing to see if 16-byte CDBs are already being used */
|
||||
if(hba[cntl_num]->cciss_read == CCISS_READ_16) {
|
||||
cciss_read_capacity_16(cntl_num, i, 0,
|
||||
&total_size, &block_size);
|
||||
goto geo_inq;
|
||||
}
|
||||
cciss_read_capacity(cntl_num, i, 0, &total_size, &block_size);
|
||||
|
||||
/* total_size = last LBA + 1 */
|
||||
if(total_size == (__u32) 0) {
|
||||
cciss_read_capacity_16(cntl_num, i, 0,
|
||||
&total_size, &block_size);
|
||||
hba[cntl_num]->cciss_read = CCISS_READ_16;
|
||||
hba[cntl_num]->cciss_write = CCISS_WRITE_16;
|
||||
} else {
|
||||
hba[cntl_num]->cciss_read = CCISS_READ_10;
|
||||
hba[cntl_num]->cciss_write = CCISS_WRITE_10;
|
||||
}
|
||||
geo_inq:
|
||||
cciss_geometry_inquiry(cntl_num, i, 0, total_size,
|
||||
block_size, inq_buff,
|
||||
&hba[cntl_num]->drv[i]);
|
||||
|
|
@ -3056,7 +3150,6 @@ static void cciss_getgeometry(int cntl_num)
|
|||
}
|
||||
}
|
||||
kfree(ld_buff);
|
||||
kfree(size_buff);
|
||||
kfree(inq_buff);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -76,6 +76,9 @@ struct ctlr_info
|
|||
unsigned int intr[4];
|
||||
unsigned int msix_vector;
|
||||
unsigned int msi_vector;
|
||||
BYTE cciss_read;
|
||||
BYTE cciss_write;
|
||||
BYTE cciss_read_capacity;
|
||||
|
||||
// information about each logical volume
|
||||
drive_info_struct drv[CISS_MAX_LUN];
|
||||
|
|
|
|||
|
|
@ -118,11 +118,34 @@ typedef struct _ReadCapdata_struct
|
|||
BYTE block_size[4]; // Size of blocks in bytes
|
||||
} ReadCapdata_struct;
|
||||
|
||||
// 12 byte commands not implemented in firmware yet.
|
||||
// #define CCISS_READ 0xa8 // Read(12)
|
||||
// #define CCISS_WRITE 0xaa // Write(12)
|
||||
#define CCISS_READ 0x28 // Read(10)
|
||||
#define CCISS_WRITE 0x2a // Write(10)
|
||||
#define CCISS_READ_CAPACITY_16 0x9e /* Read Capacity 16 */
|
||||
|
||||
/* service action to differentiate a 16 byte read capacity from
|
||||
other commands that use the 0x9e SCSI op code */
|
||||
|
||||
#define CCISS_READ_CAPACITY_16_SERVICE_ACT 0x10
|
||||
|
||||
typedef struct _ReadCapdata_struct_16
|
||||
{
|
||||
BYTE total_size[8]; /* Total size in blocks */
|
||||
BYTE block_size[4]; /* Size of blocks in bytes */
|
||||
BYTE prot_en:1; /* protection enable bit */
|
||||
BYTE rto_en:1; /* reference tag own enable bit */
|
||||
BYTE reserved:6; /* reserved bits */
|
||||
BYTE reserved2[18]; /* reserved bytes per spec */
|
||||
} ReadCapdata_struct_16;
|
||||
|
||||
/* Define the supported read/write commands for cciss based controllers */
|
||||
|
||||
#define CCISS_READ_10 0x28 /* Read(10) */
|
||||
#define CCISS_WRITE_10 0x2a /* Write(10) */
|
||||
#define CCISS_READ_16 0x88 /* Read(16) */
|
||||
#define CCISS_WRITE_16 0x8a /* Write(16) */
|
||||
|
||||
/* Define the CDB lengths supported by cciss based controllers */
|
||||
|
||||
#define CDB_LEN10 10
|
||||
#define CDB_LEN16 16
|
||||
|
||||
// BMIC commands
|
||||
#define BMIC_READ 0x26
|
||||
|
|
|
|||
Loading…
Reference in New Issue