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yaml
---
r: 7673
b: refs/heads/master
c: 0e68c00
h: refs/heads/master
i:
  7671: 8f1df21
v: v3
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Mark Haverkamp authored and James Bottomley committed Aug 5, 2005
1 parent 1a5bbf9 commit 13d07cd
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Showing 3 changed files with 195 additions and 31 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 12a26d0879d8a4502425037e9013b1f64ed669b7
refs/heads/master: 0e68c00373f61fcdee453f6c9878e3390fc0f0ce
181 changes: 152 additions & 29 deletions trunk/drivers/scsi/aacraid/aachba.c
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Original file line number Diff line number Diff line change
Expand Up @@ -133,6 +133,7 @@ struct inquiry_data {

static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
#ifdef AAC_DETAILED_STATUS_INFO
static char *aac_get_status_string(u32 status);
Expand Down Expand Up @@ -777,34 +778,36 @@ int aac_get_adapter_info(struct aac_dev* dev)
/*
* 57 scatter gather elements
*/
dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
sizeof(struct aac_fibhdr) -
sizeof(struct aac_write) + sizeof(struct sgmap)) /
sizeof(struct sgmap);
if (dev->dac_support) {
/*
* 38 scatter gather elements
*/
dev->scsi_host_ptr->sg_tablesize =
(dev->max_fib_size -
if (!(dev->raw_io_interface)) {
dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
sizeof(struct aac_fibhdr) -
sizeof(struct aac_write64) +
sizeof(struct sgmap64)) /
sizeof(struct sgmap64);
}
dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
/*
* Worst case size that could cause sg overflow when
* we break up SG elements that are larger than 64KB.
* Would be nice if we could tell the SCSI layer what
* the maximum SG element size can be. Worst case is
* (sg_tablesize-1) 4KB elements with one 64KB
* element.
* 32bit -> 468 or 238KB 64bit -> 424 or 212KB
*/
dev->scsi_host_ptr->max_sectors =
(dev->scsi_host_ptr->sg_tablesize * 8) + 112;
sizeof(struct aac_write) + sizeof(struct sgmap)) /
sizeof(struct sgmap);
if (dev->dac_support) {
/*
* 38 scatter gather elements
*/
dev->scsi_host_ptr->sg_tablesize =
(dev->max_fib_size -
sizeof(struct aac_fibhdr) -
sizeof(struct aac_write64) +
sizeof(struct sgmap64)) /
sizeof(struct sgmap64);
}
dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
/*
* Worst case size that could cause sg overflow when
* we break up SG elements that are larger than 64KB.
* Would be nice if we could tell the SCSI layer what
* the maximum SG element size can be. Worst case is
* (sg_tablesize-1) 4KB elements with one 64KB
* element.
* 32bit -> 468 or 238KB 64bit -> 424 or 212KB
*/
dev->scsi_host_ptr->max_sectors =
(dev->scsi_host_ptr->sg_tablesize * 8) + 112;
}
}

fib_complete(fibptr);
Expand Down Expand Up @@ -905,7 +908,32 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid)

fib_init(cmd_fibcontext);

if (dev->dac_support == 1) {
if (dev->raw_io_interface) {
struct aac_raw_io *readcmd;
readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
readcmd->block[0] = cpu_to_le32(lba);
readcmd->block[1] = 0;
readcmd->count = cpu_to_le32(count<<9);
readcmd->cid = cpu_to_le16(cid);
readcmd->flags = cpu_to_le16(1);
readcmd->bpTotal = 0;
readcmd->bpComplete = 0;

aac_build_sgraw(scsicmd, &readcmd->sg);
fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
BUG();
/*
* Now send the Fib to the adapter
*/
status = fib_send(ContainerRawIo,
cmd_fibcontext,
fibsize,
FsaNormal,
0, 1,
(fib_callback) io_callback,
(void *) scsicmd);
} else if (dev->dac_support == 1) {
struct aac_read64 *readcmd;
readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
readcmd->command = cpu_to_le32(VM_CtHostRead64);
Expand Down Expand Up @@ -1012,7 +1040,32 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid)
}
fib_init(cmd_fibcontext);

if(dev->dac_support == 1) {
if (dev->raw_io_interface) {
struct aac_raw_io *writecmd;
writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
writecmd->block[0] = cpu_to_le32(lba);
writecmd->block[1] = 0;
writecmd->count = cpu_to_le32(count<<9);
writecmd->cid = cpu_to_le16(cid);
writecmd->flags = 0;
writecmd->bpTotal = 0;
writecmd->bpComplete = 0;

aac_build_sgraw(scsicmd, &writecmd->sg);
fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
BUG();
/*
* Now send the Fib to the adapter
*/
status = fib_send(ContainerRawIo,
cmd_fibcontext,
fibsize,
FsaNormal,
0, 1,
(fib_callback) io_callback,
(void *) scsicmd);
} else if (dev->dac_support == 1) {
struct aac_write64 *writecmd;
writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
writecmd->command = cpu_to_le32(VM_CtHostWrite64);
Expand Down Expand Up @@ -2028,6 +2081,76 @@ static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* p
return byte_count;
}

static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
{
struct Scsi_Host *host = scsicmd->device->host;
struct aac_dev *dev = (struct aac_dev *)host->hostdata;
unsigned long byte_count = 0;

// Get rid of old data
psg->count = 0;
psg->sg[0].next = 0;
psg->sg[0].prev = 0;
psg->sg[0].addr[0] = 0;
psg->sg[0].addr[1] = 0;
psg->sg[0].count = 0;
psg->sg[0].flags = 0;
if (scsicmd->use_sg) {
struct scatterlist *sg;
int i;
int sg_count;
sg = (struct scatterlist *) scsicmd->request_buffer;

sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
scsicmd->sc_data_direction);

for (i = 0; i < sg_count; i++) {
int count = sg_dma_len(sg);
u64 addr = sg_dma_address(sg);
psg->sg[i].next = 0;
psg->sg[i].prev = 0;
psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
psg->sg[i].count = cpu_to_le32(count);
psg->sg[i].flags = 0;
byte_count += count;
sg++;
}
psg->count = cpu_to_le32(sg_count);
/* hba wants the size to be exact */
if(byte_count > scsicmd->request_bufflen){
u32 temp = le32_to_cpu(psg->sg[i-1].count) -
(byte_count - scsicmd->request_bufflen);
psg->sg[i-1].count = cpu_to_le32(temp);
byte_count = scsicmd->request_bufflen;
}
/* Check for command underflow */
if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
byte_count, scsicmd->underflow);
}
}
else if(scsicmd->request_bufflen) {
int count;
u64 addr;
scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
scsicmd->request_buffer,
scsicmd->request_bufflen,
scsicmd->sc_data_direction);
addr = scsicmd->SCp.dma_handle;
count = scsicmd->request_bufflen;
psg->count = cpu_to_le32(1);
psg->sg[0].next = 0;
psg->sg[0].prev = 0;
psg->sg[0].addr[1] = cpu_to_le32((u32)(addr>>32));
psg->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
psg->sg[0].count = cpu_to_le32(count);
psg->sg[0].flags = 0;
byte_count = scsicmd->request_bufflen;
}
return byte_count;
}

#ifdef AAC_DETAILED_STATUS_INFO

struct aac_srb_status_info {
Expand Down
43 changes: 42 additions & 1 deletion trunk/drivers/scsi/aacraid/aacraid.h
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Original file line number Diff line number Diff line change
Expand Up @@ -114,6 +114,22 @@ struct user_sgentry64 {
u32 count; /* Length. */
};

struct sgentryraw {
__le32 next; /* reserved for F/W use */
__le32 prev; /* reserved for F/W use */
__le32 addr[2];
__le32 count;
__le32 flags; /* reserved for F/W use */
};

struct user_sgentryraw {
u32 next; /* reserved for F/W use */
u32 prev; /* reserved for F/W use */
u32 addr[2];
u32 count;
u32 flags; /* reserved for F/W use */
};

/*
* SGMAP
*
Expand Down Expand Up @@ -141,6 +157,16 @@ struct user_sgmap64 {
struct user_sgentry64 sg[1];
};

struct sgmapraw {
__le32 count;
struct sgentryraw sg[1];
};

struct user_sgmapraw {
u32 count;
struct user_sgentryraw sg[1];
};

struct creation_info
{
u8 buildnum; /* e.g., 588 */
Expand Down Expand Up @@ -355,6 +381,7 @@ struct hw_fib {
*/
#define ContainerCommand 500
#define ContainerCommand64 501
#define ContainerRawIo 502
/*
* Cluster Commands
*/
Expand Down Expand Up @@ -986,6 +1013,9 @@ struct aac_dev
u8 nondasd_support;
u8 dac_support;
u8 raid_scsi_mode;
/* macro side-effects BEWARE */
# define raw_io_interface \
init->InitStructRevision==cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4)
u8 printf_enabled;
};

Expand Down Expand Up @@ -1164,6 +1194,17 @@ struct aac_write_reply
__le32 committed;
};

struct aac_raw_io
{
__le32 block[2];
__le32 count;
__le16 cid;
__le16 flags; /* 00 W, 01 R */
__le16 bpTotal; /* reserved for F/W use */
__le16 bpComplete; /* reserved for F/W use */
struct sgmapraw sg;
};

#define CT_FLUSH_CACHE 129
struct aac_synchronize {
__le32 command; /* VM_ContainerConfig */
Expand Down Expand Up @@ -1204,7 +1245,7 @@ struct aac_srb
};

/*
* This and assocated data structs are used by the
* This and associated data structs are used by the
* ioctl caller and are in cpu order.
*/
struct user_aac_srb
Expand Down

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