bnx2x: Parity errors recovery for 578xx

Fix the parity errors recovery flow for 578xx:
    - Add a separate column for the 578xx in the parity mask
      registers DB.
    - Fix the bnx2x_process_kill_chip_reset() to handle the blocks
      newly introduced in the 578xx.

Cover ATC and PGLUE_B blocks for 57712 and 578xx.

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>

1 files changed, 94 insertions, 25 deletions

diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index 6ee9fc8d8e77..e1ec1a302474 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -3817,6 +3817,10 @@ static inline int bnx2x_check_blocks_with_parity1(u32 sig, int par_num,
 				if (print)
 					_print_next_block(par_num++, "USDM");
 				break;
+			case AEU_INPUTS_ATTN_BITS_UCM_PARITY_ERROR:
+				if (print)
+					_print_next_block(par_num++, "UCM");
+				break;
 			case AEU_INPUTS_ATTN_BITS_USEMI_PARITY_ERROR:
 				if (print)
 					_print_next_block(par_num++, "USEMI");
@@ -3829,6 +3833,10 @@ static inline int bnx2x_check_blocks_with_parity1(u32 sig, int par_num,
 				if (print)
 					_print_next_block(par_num++, "CSDM");
 				break;
+			case AEU_INPUTS_ATTN_BITS_CCM_PARITY_ERROR:
+				if (print)
+					_print_next_block(par_num++, "CCM");
+				break;
 			}
 
 			/* Clear the bit */
@@ -3933,32 +3941,67 @@ static inline int bnx2x_check_blocks_with_parity3(u32 sig, int par_num,
 	return par_num;
 }
 
+static inline int bnx2x_check_blocks_with_parity4(u32 sig, int par_num,
+						  bool print)
+{
+	int i = 0;
+	u32 cur_bit = 0;
+	for (i = 0; sig; i++) {
+		cur_bit = ((u32)0x1 << i);
+		if (sig & cur_bit) {
+			switch (cur_bit) {
+			case AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR:
+				if (print)
+					_print_next_block(par_num++, "PGLUE_B");
+				break;
+			case AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR:
+				if (print)
+					_print_next_block(par_num++, "ATC");
+				break;
+			}
+
+			/* Clear the bit */
+			sig &= ~cur_bit;
+		}
+	}
+
+	return par_num;
+}
+
 static inline bool bnx2x_parity_attn(struct bnx2x *bp, bool *global, bool print,
-				     u32 sig0, u32 sig1, u32 sig2, u32 sig3)
+				     u32 *sig)
 {
-	if ((sig0 & HW_PRTY_ASSERT_SET_0) || (sig1 & HW_PRTY_ASSERT_SET_1) ||
-	    (sig2 & HW_PRTY_ASSERT_SET_2) || (sig3 & HW_PRTY_ASSERT_SET_3)) {
+	if ((sig[0] & HW_PRTY_ASSERT_SET_0) ||
+	    (sig[1] & HW_PRTY_ASSERT_SET_1) ||
+	    (sig[2] & HW_PRTY_ASSERT_SET_2) ||
+	    (sig[3] & HW_PRTY_ASSERT_SET_3) ||
+	    (sig[4] & HW_PRTY_ASSERT_SET_4)) {
 		int par_num = 0;
 		DP(NETIF_MSG_HW, "Was parity error: HW block parity attention: "
-			"[0]:0x%08x [1]:0x%08x "
-			"[2]:0x%08x [3]:0x%08x\n",
-			  sig0 & HW_PRTY_ASSERT_SET_0,
-			  sig1 & HW_PRTY_ASSERT_SET_1,
-			  sig2 & HW_PRTY_ASSERT_SET_2,
-			  sig3 & HW_PRTY_ASSERT_SET_3);
+			"[0]:0x%08x [1]:0x%08x [2]:0x%08x [3]:0x%08x "
+			"[4]:0x%08x\n",
+			  sig[0] & HW_PRTY_ASSERT_SET_0,
+			  sig[1] & HW_PRTY_ASSERT_SET_1,
+			  sig[2] & HW_PRTY_ASSERT_SET_2,
+			  sig[3] & HW_PRTY_ASSERT_SET_3,
+			  sig[4] & HW_PRTY_ASSERT_SET_4);
 		if (print)
 			netdev_err(bp->dev,
 				   "Parity errors detected in blocks: ");
 		par_num = bnx2x_check_blocks_with_parity0(
-			sig0 & HW_PRTY_ASSERT_SET_0, par_num, print);
+			sig[0] & HW_PRTY_ASSERT_SET_0, par_num, print);
 		par_num = bnx2x_check_blocks_with_parity1(
-			sig1 & HW_PRTY_ASSERT_SET_1, par_num, global, print);
+			sig[1] & HW_PRTY_ASSERT_SET_1, par_num, global, print);
 		par_num = bnx2x_check_blocks_with_parity2(
-			sig2 & HW_PRTY_ASSERT_SET_2, par_num, print);
+			sig[2] & HW_PRTY_ASSERT_SET_2, par_num, print);
 		par_num = bnx2x_check_blocks_with_parity3(
-			sig3 & HW_PRTY_ASSERT_SET_3, par_num, global, print);
+			sig[3] & HW_PRTY_ASSERT_SET_3, par_num, global, print);
+		par_num = bnx2x_check_blocks_with_parity4(
+			sig[4] & HW_PRTY_ASSERT_SET_4, par_num, print);
+
 		if (print)
 			pr_cont("\n");
+
 		return true;
 	} else
 		return false;
@@ -3973,7 +4016,7 @@ static inline bool bnx2x_parity_attn(struct bnx2x *bp, bool *global, bool print,
  */
 bool bnx2x_chk_parity_attn(struct bnx2x *bp, bool *global, bool print)
 {
-	struct attn_route attn;
+	struct attn_route attn = { {0} };
 	int port = BP_PORT(bp);
 
 	attn.sig[0] = REG_RD(bp,
@@ -3989,8 +4032,12 @@ bool bnx2x_chk_parity_attn(struct bnx2x *bp, bool *global, bool print)
 		MISC_REG_AEU_AFTER_INVERT_4_FUNC_0 +
 			     port*4);
 
-	return bnx2x_parity_attn(bp, global, print, attn.sig[0], attn.sig[1],
-				 attn.sig[2], attn.sig[3]);
+	if (!CHIP_IS_E1x(bp))
+		attn.sig[4] = REG_RD(bp,
+			MISC_REG_AEU_AFTER_INVERT_5_FUNC_0 +
+				     port*4);
+
+	return bnx2x_parity_attn(bp, global, print, attn.sig);
 }
 
 
@@ -7932,7 +7979,7 @@ static void bnx2x_pxp_prep(struct bnx2x *bp)
 static void bnx2x_process_kill_chip_reset(struct bnx2x *bp, bool global)
 {
 	u32 not_reset_mask1, reset_mask1, not_reset_mask2, reset_mask2;
-	u32 global_bits2;
+	u32 global_bits2, stay_reset2;
 
 	/*
 	 * Bits that have to be set in reset_mask2 if we want to reset 'global'
@@ -7942,6 +7989,7 @@ static void bnx2x_process_kill_chip_reset(struct bnx2x *bp, bool global)
 		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_CMN_CPU |
 		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_CMN_CORE;
 
+	/* Don't reset the following blocks */
 	not_reset_mask1 =
 		MISC_REGISTERS_RESET_REG_1_RST_HC |
 		MISC_REGISTERS_RESET_REG_1_RST_PXPV |
@@ -7955,19 +8003,35 @@ static void bnx2x_process_kill_chip_reset(struct bnx2x *bp, bool global)
 		MISC_REGISTERS_RESET_REG_2_RST_RBCN |
 		MISC_REGISTERS_RESET_REG_2_RST_GRC  |
 		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_REG_HARD_CORE |
-		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_HARD_CORE_RST_B;
+		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_HARD_CORE_RST_B |
+		MISC_REGISTERS_RESET_REG_2_RST_ATC |
+		MISC_REGISTERS_RESET_REG_2_PGLC;
 
+	/*
+	 * Keep the following blocks in reset:
+	 *  - all xxMACs are handled by the bnx2x_link code.
+	 */
+	stay_reset2 =
+		MISC_REGISTERS_RESET_REG_2_RST_BMAC0 |
+		MISC_REGISTERS_RESET_REG_2_RST_BMAC1 |
+		MISC_REGISTERS_RESET_REG_2_RST_EMAC0 |
+		MISC_REGISTERS_RESET_REG_2_RST_EMAC1 |
+		MISC_REGISTERS_RESET_REG_2_UMAC0 |
+		MISC_REGISTERS_RESET_REG_2_UMAC1 |
+		MISC_REGISTERS_RESET_REG_2_XMAC |
+		MISC_REGISTERS_RESET_REG_2_XMAC_SOFT;
+
+	/* Full reset masks according to the chip */
 	reset_mask1 = 0xffffffff;
 
 	if (CHIP_IS_E1(bp))
 		reset_mask2 = 0xffff;
-	else
+	else if (CHIP_IS_E1H(bp))
 		reset_mask2 = 0x1ffff;
-
-	if (CHIP_IS_E3(bp)) {
-		reset_mask2 |= MISC_REGISTERS_RESET_REG_2_MSTAT0;
-		reset_mask2 |= MISC_REGISTERS_RESET_REG_2_MSTAT1;
-	}
+	else if (CHIP_IS_E2(bp))
+		reset_mask2 = 0xfffff;
+	else /* CHIP_IS_E3 */
+		reset_mask2 = 0x3ffffff;
 
 	/* Don't reset global blocks unless we need to */
 	if (!global)
@@ -7996,7 +8060,12 @@ static void bnx2x_process_kill_chip_reset(struct bnx2x *bp, bool global)
 	barrier();
 	mmiowb();
 
-	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET, reset_mask2);
+	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
+	       reset_mask2 & (~stay_reset2));
+
+	barrier();
+	mmiowb();
+
 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, reset_mask1);
 	mmiowb();
 }