From 7c00ffa314bf0fb0e23858bbebad33b48b6abbb9 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Mon, 16 May 2005 18:28:42 -0700 Subject: [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 --- drivers/scsi/aacraid/sa.c | 31 ++++++++++++++++++++++++------- 1 file changed, 24 insertions(+), 7 deletions(-) (limited to 'drivers/scsi/aacraid/sa.c') diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c index 100c5a0866b..0680249ab86 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); } /** -- cgit v1.2.3