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authorMarkus Lidel <Markus.Lidel@shadowconnect.com>2005-06-23 22:02:19 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-24 00:05:28 -0700
commitb2aaee33fbb354a2f08121aa1c1be55841102761 (patch)
tree7567ca61aaf5eed8bb1acd01cd87aa235b854fd4 /include
parentf10378fff658f61307496e0ae00095041725cf07 (diff)
downloadop-kernel-dev-b2aaee33fbb354a2f08121aa1c1be55841102761.zip
op-kernel-dev-b2aaee33fbb354a2f08121aa1c1be55841102761.tar.gz
[PATCH] I2O: Adaptec specific SG_IO access, firmware access through sysfs and 2400A workaround
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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/i2o-dev.h22
-rw-r--r--include/linux/i2o.h37
-rw-r--r--include/scsi/sg_request.h26
3 files changed, 74 insertions, 11 deletions
diff --git a/include/linux/i2o-dev.h b/include/linux/i2o-dev.h
index 90c984e..d4a08d2 100644
--- a/include/linux/i2o-dev.h
+++ b/include/linux/i2o-dev.h
@@ -33,6 +33,13 @@ typedef unsigned int u32;
#endif /* __KERNEL__ */
/*
+ * Software module types
+ */
+#define I2O_SOFTWARE_MODULE_IRTOS 0x11
+#define I2O_SOFTWARE_MODULE_IOP_PRIVATE 0x22
+#define I2O_SOFTWARE_MODULE_IOP_CONFIG 0x23
+
+/*
* Vendors
*/
#define I2O_VENDOR_DPT 0x001b
@@ -125,6 +132,10 @@ struct i2o_evt_get {
int lost;
};
+typedef struct i2o_sg_io_hdr {
+ unsigned int flags; /* see I2O_DPT_SG_IO_FLAGS */
+} i2o_sg_io_hdr_t;
+
/**************************************************************************
* HRT related constants and structures
**************************************************************************/
@@ -403,4 +414,15 @@ typedef struct _i2o_status_block {
#define ADAPTER_STATE_FAILED 0x10
#define ADAPTER_STATE_FAULTED 0x11
+
+/*
+ * DPT / Adaptec specific values for i2o_sg_io_hdr flags.
+ */
+#define I2O_DPT_SG_FLAG_INTERPRET 0x00010000
+#define I2O_DPT_SG_FLAG_PHYSICAL 0x00020000
+
+#define I2O_DPT_FLASH_FRAG_SIZE 0x10000
+#define I2O_DPT_FLASH_READ 0x0101
+#define I2O_DPT_FLASH_WRITE 0x0102
+
#endif /* _I2O_DEV_H */
diff --git a/include/linux/i2o.h b/include/linux/i2o.h
index 497ea57..2039a87 100644
--- a/include/linux/i2o.h
+++ b/include/linux/i2o.h
@@ -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 */
diff --git a/include/scsi/sg_request.h b/include/scsi/sg_request.h
new file mode 100644
index 0000000..57ff525
--- /dev/null
+++ b/include/scsi/sg_request.h
@@ -0,0 +1,26 @@
+typedef struct scsi_request Scsi_Request;
+
+static Scsi_Request *dummy_cmdp; /* only used for sizeof */
+
+typedef struct sg_scatter_hold { /* holding area for scsi scatter gather info */
+ unsigned short k_use_sg; /* Count of kernel scatter-gather pieces */
+ unsigned short sglist_len; /* size of malloc'd scatter-gather list ++ */
+ unsigned bufflen; /* Size of (aggregate) data buffer */
+ unsigned b_malloc_len; /* actual len malloc'ed in buffer */
+ void *buffer; /* Data buffer or scatter list (k_use_sg>0) */
+ char dio_in_use; /* 0->indirect IO (or mmap), 1->dio */
+ unsigned char cmd_opcode; /* first byte of command */
+} Sg_scatter_hold;
+
+typedef struct sg_request { /* SG_MAX_QUEUE requests outstanding per file */
+ Scsi_Request *my_cmdp; /* != 0 when request with lower levels */
+ struct sg_request *nextrp; /* NULL -> tail request (slist) */
+ struct sg_fd *parentfp; /* NULL -> not in use */
+ Sg_scatter_hold data; /* hold buffer, perhaps scatter list */
+ sg_io_hdr_t header; /* scsi command+info, see <scsi/sg.h> */
+ unsigned char sense_b[sizeof (dummy_cmdp->sr_sense_buffer)];
+ char res_used; /* 1 -> using reserve buffer, 0 -> not ... */
+ char orphan; /* 1 -> drop on sight, 0 -> normal */
+ char sg_io_owned; /* 1 -> packet belongs to SG_IO */
+ volatile char done; /* 0->before bh, 1->before read, 2->read */
+} Sg_request;
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