From 53203244a4f9988f132ef481867ff47d6bd055b5 Mon Sep 17 00:00:00 2001 From: Anil Veerabhadrappa Date: Fri, 11 Sep 2009 10:38:26 -0700 Subject: [PATCH] [SCSI] bnx2i: Fix context mapping issue for architectures with PAGE_SIZE != 4096 5706/5708/5709 devices allow driver/user to set page size. By default it is set to 4096. Current drivers do not program this register based on architecture type (e.g. x86 = 4K, IA64 = 16K) and by choice lets device use the defaults. So while mapping connection context memory (doorebll registers), driver has to match page size used by the device. Included change fixes the issue we uncovered during IA64 testing Signed-off-by: Anil Veerabhadrappa Signed-off-by: James Bottomley --- drivers/scsi/bnx2i/bnx2i.h | 2 ++ drivers/scsi/bnx2i/bnx2i_hwi.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h index d7576f2..5edde1a 100644 --- a/drivers/scsi/bnx2i/bnx2i.h +++ b/drivers/scsi/bnx2i/bnx2i.h @@ -100,6 +100,8 @@ #define CTX_OFFSET 0x10000 #define MAX_CID_CNT 0x4000 +#define BNX2I_570X_PAGE_SIZE_DEFAULT 4096 + /* 5709 context registers */ #define BNX2_MQ_CONFIG2 0x00003d00 #define BNX2_MQ_CONFIG2_CONT_SZ (0x7L<<4) diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c index 41e1b0e..5c8d763 100644 --- a/drivers/scsi/bnx2i/bnx2i_hwi.c +++ b/drivers/scsi/bnx2i/bnx2i_hwi.c @@ -2386,7 +2386,7 @@ int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep) ctx_sz = (config2 & BNX2_MQ_CONFIG2_CONT_SZ) >> 3; if (ctx_sz) reg_off = CTX_OFFSET + MAX_CID_CNT * MB_KERNEL_CTX_SIZE - + PAGE_SIZE * + + BNX2I_570X_PAGE_SIZE_DEFAULT * (((cid_num - first_l4l5) / ctx_sz) + 256); else reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); -- 2.7.4