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[PATCH] I2O: Adaptec specific SG_IO access, firmware access through sysfs and 2400A workaround

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Changes:
 - Provide SG_IO access to BLOCK and EXECUTIVE class on Adaptec
   controllers
 - Use PRIVATE messages in SCSI-OSM because on some controllers normal
   SCSI class commands like READ or READ CAPACITY cause errors
 - Use new DMA and SG list creation function
 - Added workaround to limit sectors per request for Adaptec 2400A
   controllers

Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Markus Lidel 2005-06-23 22:02:19 -07:00 • committed by Linus Torvalds
commit b2aaee33fb
8 changed files with 281 additions and 115 deletions
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37
include/linux/i2o.h
View file

@ -147,10 +147,13 @@ struct i2o_controller {
struct pci_dev *pdev; /* PCI device */
unsigned int short_req:1; /* use small block sizes */
unsigned int no_quiesce:1; /* dont quiesce before reset */
unsigned int raptor:1; /* split bar */
unsigned int promise:1; /* Promise controller */
unsigned int adaptec:1; /* DPT / Adaptec controller */
unsigned int raptor:1; /* split bar */
unsigned int no_quiesce:1; /* dont quiesce before reset */
unsigned int short_req:1; /* use small block sizes */
unsigned int limit_sectors:1; /* limit number of sectors / request */
unsigned int pae_support:1; /* controller has 64-bit SGL support */
struct list_head devices; /* list of I2O devices */
struct list_head list; /* Controller list */
@ -746,7 +749,21 @@ static inline struct i2o_message __iomem *i2o_msg_in_to_virt(struct i2o_controll
static inline int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr,
size_t len, unsigned int gfp_mask)
{
struct pci_dev *pdev = to_pci_dev(dev);
int dma_64 = 0;
if ((sizeof(dma_addr_t) > 4) && (pdev->dma_mask == DMA_64BIT_MASK)) {
dma_64 = 1;
if(pci_set_dma_mask(pdev, DMA_32BIT_MASK))
return -ENOMEM;
}
addr->virt = dma_alloc_coherent(dev, len, &addr->phys, gfp_mask);
if ((sizeof(dma_addr_t) > 4) && dma_64)
if(pci_set_dma_mask(pdev, DMA_64BIT_MASK))
printk(KERN_WARNING "i2o: unable to set 64-bit DMA");
if (!addr->virt)
return -ENOMEM;
@ -946,7 +963,7 @@ extern void i2o_debug_state(struct i2o_controller *c);
#define I2O_CMD_BLOCK_MEJECT 0x43
#define I2O_CMD_BLOCK_POWER 0x70
#define I2O_PRIVATE_MSG 0xFF
#define I2O_CMD_PRIVATE 0xFF
/* Command status values */
@ -1095,9 +1112,9 @@ extern void i2o_debug_state(struct i2o_controller *c);
#define SGL_OFFSET_8 (0x0080 | I2OVERSION)
#define SGL_OFFSET_9 (0x0090 | I2OVERSION)
#define SGL_OFFSET_10 (0x00A0 | I2OVERSION)
#define TRL_OFFSET_5 (0x0050 | I2OVERSION)
#define TRL_OFFSET_6 (0x0060 | I2OVERSION)
#define SGL_OFFSET_11 (0x00B0 | I2OVERSION)
#define SGL_OFFSET_12 (0x00C0 | I2OVERSION)
#define SGL_OFFSET(x) (((x)<<4) | I2OVERSION)
/* Transaction Reply Lists (TRL) Control Word structure */
#define TRL_SINGLE_FIXED_LENGTH 0x00
@ -1130,7 +1147,6 @@ extern void i2o_debug_state(struct i2o_controller *c);
#define HOST_TID 1
#define MSG_FRAME_SIZE 128 /* i2o_scsi assumes >= 32 */
#define REPLY_FRAME_SIZE 17
#define SG_TABLESIZE 30
#define NMBR_MSG_FRAMES 128
@ -1155,11 +1171,10 @@ extern void i2o_debug_state(struct i2o_controller *c);
#define I2O_HRT_GET_TRIES 3
#define I2O_LCT_GET_TRIES 3
/* request queue sizes */
/* defines for max_sectors and max_phys_segments */
#define I2O_MAX_SECTORS 1024
#define I2O_MAX_SECTORS_LIMITED 256
#define I2O_MAX_PHYS_SEGMENTS MAX_PHYS_SEGMENTS
#define I2O_REQ_MEMPOOL_SIZE 32
#endif /* __KERNEL__ */
#endif /* _I2O_H */