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authorMark Haverkamp <markh@osdl.org>2005-05-16 18:28:42 -0700
committerJames Bottomley <jejb@mulgrave.(none)>2005-05-20 15:48:00 -0500
commit7c00ffa314bf0fb0e23858bbebad33b48b6abbb9 (patch)
tree4d6b65bb5a2c8fecf48a8c6402c2cc867aa2fe6c /drivers/scsi/aacraid/sa.c
parent672b2d38da4fff4c4452685a25fb88b65243d1a6 (diff)
[SCSI] 2.6 aacraid: Variable FIB size (updated patch)
New code from the Adaptec driver. Performance enhancement for newer adapters. I hope that this isn't too big for a single patch. I believe that other than the few small cleanups mentioned, that the changes are all related. - Added Variable FIB size negotiation for new adapters. - Added support to maximize scatter gather tables and thus permit requests larger than 64KB/each. - Limit Scatter Gather to 34 elements for ROMB platforms. - aac_printf is only enabled with AAC_QUIRK_34SG - Large FIB ioctl support - some minor cleanup Passes sparse check. I have tested it on x86 and ppc64 machines. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aacraid/sa.c')
-rw-r--r--drivers/scsi/aacraid/sa.c31
1 files changed, 24 insertions, 7 deletions
diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c
index 100c5a0866b4..0680249ab861 100644
--- a/drivers/scsi/aacraid/sa.c
+++ b/drivers/scsi/aacraid/sa.c
@@ -106,7 +106,10 @@ static void aac_sa_notify_adapter(struct aac_dev *dev, u32 event)
sa_writew(dev, DoorbellReg_s,DOORBELL_3);
break;
case HostShutdown:
- //sa_sync_cmd(dev, HOST_CRASHING, 0, &ret);
+ /*
+ sa_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, 0, 0,
+ NULL, NULL, NULL, NULL, NULL);
+ */
break;
case FastIo:
sa_writew(dev, DoorbellReg_s,DOORBELL_6);
@@ -132,7 +135,9 @@ static void aac_sa_notify_adapter(struct aac_dev *dev, u32 event)
* for its completion.
*/
-static int sa_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *ret)
+static int sa_sync_cmd(struct aac_dev *dev, u32 command,
+ u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
+ u32 *ret, u32 *r1, u32 *r2, u32 *r3, u32 *r4)
{
unsigned long start;
int ok;
@@ -144,9 +149,10 @@ static int sa_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *ret)
* Write the parameters into Mailboxes 1 - 4
*/
sa_writel(dev, Mailbox1, p1);
- sa_writel(dev, Mailbox2, 0);
- sa_writel(dev, Mailbox3, 0);
- sa_writel(dev, Mailbox4, 0);
+ sa_writel(dev, Mailbox2, p2);
+ sa_writel(dev, Mailbox3, p3);
+ sa_writel(dev, Mailbox4, p4);
+
/*
* Clear the synch command doorbell to start on a clean slate.
*/
@@ -188,6 +194,14 @@ static int sa_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *ret)
*/
if (ret)
*ret = sa_readl(dev, Mailbox0);
+ if (r1)
+ *r1 = sa_readl(dev, Mailbox1);
+ if (r2)
+ *r2 = sa_readl(dev, Mailbox2);
+ if (r3)
+ *r3 = sa_readl(dev, Mailbox3);
+ if (r4)
+ *r4 = sa_readl(dev, Mailbox4);
return 0;
}
@@ -201,7 +215,8 @@ static int sa_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *ret)
static void aac_sa_interrupt_adapter (struct aac_dev *dev)
{
u32 ret;
- sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, &ret);
+ sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0,
+ &ret, NULL, NULL, NULL, NULL);
}
/**
@@ -233,7 +248,9 @@ static void aac_sa_start_adapter(struct aac_dev *dev)
sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady | DOORBELL_1 | DOORBELL_2 | DOORBELL_3 | DOORBELL_4));
/* We can only use a 32 bit address here */
- sa_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa, &ret);
+ sa_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS,
+ (u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0,
+ &ret, NULL, NULL, NULL, NULL);
}
/**