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bnx2x: prevent false parity error in MSI-X memory of HC block 

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladislav Zolotarov 2010-10-19 05:13:09 +00:00 committed by David S. Miller
parent a0fd065cd5
commit f4a66897e7
2 changed files with 32 additions and 2 deletions
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28
drivers/net/bnx2x/bnx2x_main.c
View File

@ -5457,7 +5457,8 @@ static int bnx2x_init_hw_func(struct bnx2x *bp)
struct bnx2x_ilt *ilt = BP_ILT(bp);
u16 cdu_ilt_start;
u32 addr, val;
int i;
u32 main_mem_base, main_mem_size, main_mem_prty_clr;
int i, main_mem_width;
DP(BNX2X_MSG_MCP, "starting func init func %d\n", func);
@ -5706,6 +5707,31 @@ static int bnx2x_init_hw_func(struct bnx2x *bp)
bnx2x_init_block(bp, MCP_BLOCK, FUNC0_STAGE + func);
bnx2x_init_block(bp, DMAE_BLOCK, FUNC0_STAGE + func);
if (CHIP_IS_E1x(bp)) {
main_mem_size = HC_REG_MAIN_MEMORY_SIZE / 2; /*dwords*/
main_mem_base = HC_REG_MAIN_MEMORY +
BP_PORT(bp) * (main_mem_size * 4);
main_mem_prty_clr = HC_REG_HC_PRTY_STS_CLR;
main_mem_width = 8;
val = REG_RD(bp, main_mem_prty_clr);
if (val)
DP(BNX2X_MSG_MCP, "Hmmm... Parity errors in HC "
"block during "
"function init (0x%x)!\n", val);
/* Clear "false" parity errors in MSI-X table */
for (i = main_mem_base;
i < main_mem_base + main_mem_size * 4;
i += main_mem_width) {
bnx2x_read_dmae(bp, i, main_mem_width / 4);
bnx2x_write_dmae(bp, bnx2x_sp_mapping(bp, wb_data),
i, main_mem_width / 4);
}
/* Clear HC parity attention */
REG_RD(bp, main_mem_prty_clr);
}
bnx2x_phy_probe(&bp->link_params);
return 0;

6
drivers/net/bnx2x/bnx2x_reg.h
View File

@ -800,9 +800,13 @@
#define HC_REG_HC_PRTY_MASK 0x1080a0
/* [R 3] Parity register #0 read */
#define HC_REG_HC_PRTY_STS 0x108094
#define HC_REG_INT_MASK 0x108108
/* [RC 3] Parity register #0 read clear */
#define HC_REG_HC_PRTY_STS_CLR 0x108098
#define HC_REG_INT_MASK 0x108108
#define HC_REG_LEADING_EDGE_0 0x108040
#define HC_REG_LEADING_EDGE_1 0x108048
#define HC_REG_MAIN_MEMORY 0x108800
#define HC_REG_MAIN_MEMORY_SIZE 152
#define HC_REG_P0_PROD_CONS 0x108200
#define HC_REG_P1_PROD_CONS 0x108400
#define HC_REG_PBA_COMMAND 0x108140