[PATCH v2 05/27] net/ixgbe/base: correct registers names to match datasheet

[Anatoly Burakov <anatoly.burakov@intel.com>]

From: Jakub Chylkowski <jakubx.chylkowski@intel.com>

Some of mailbox-related registers have different names than it is
specified in datasheet. Correct these names to correspond to their
datasheet counterparts. Additionally, several calculations are changed
to no longer use magic numbers but dedicated macros instead.

Signed-off-by: Jakub Chylkowski <jakubx.chylkowski@intel.com>
Reviewed-by: Zalfresso-jundzillo, MarekX <marekx.zalfresso-jundzillo@intel.com>
Reviewed-by: Michael, Alice <alice.michael@intel.com>
Reviewed-by: Skajewski, PiotrX <piotrx.skajewski@intel.com>
Tested-by: Skajewski, PiotrX <piotrx.skajewski@intel.com>
Reviewed-by: Mrozowicz, SlawomirX <slawomirx.mrozowicz@intel.com>
Tested-by: Michael, Alice <alice.michael@intel.com>
---
 drivers/net/ixgbe/base/ixgbe_mbx.c  | 30 ++++++++++++++---------------
 drivers/net/ixgbe/base/ixgbe_mbx.h  |  8 ++++----
 drivers/net/ixgbe/base/ixgbe_type.h | 12 ++++++------
 3 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/drivers/net/ixgbe/base/ixgbe_mbx.c b/drivers/net/ixgbe/base/ixgbe_mbx.c
index 4dddff2c58..d645dcf827 100644
--- a/drivers/net/ixgbe/base/ixgbe_mbx.c
+++ b/drivers/net/ixgbe/base/ixgbe_mbx.c
@@ -496,12 +496,12 @@ void ixgbe_init_mbx_params_vf(struct ixgbe_hw *hw)
 
 STATIC s32 ixgbe_check_for_bit_pf(struct ixgbe_hw *hw, u32 mask, s32 index)
 {
-	u32 mbvficr = IXGBE_READ_REG(hw, IXGBE_MBVFICR(index));
+	u32 pfmbicr = IXGBE_READ_REG(hw, IXGBE_PFMBICR(index));
 	s32 ret_val = IXGBE_ERR_MBX;
 
-	if (mbvficr & mask) {
+	if (pfmbicr & mask) {
 		ret_val = IXGBE_SUCCESS;
-		IXGBE_WRITE_REG(hw, IXGBE_MBVFICR(index), mask);
+		IXGBE_WRITE_REG(hw, IXGBE_PFMBICR(index), mask);
 	}
 
 	return ret_val;
@@ -516,13 +516,13 @@ STATIC s32 ixgbe_check_for_bit_pf(struct ixgbe_hw *hw, u32 mask, s32 index)
  **/
 STATIC s32 ixgbe_check_for_msg_pf(struct ixgbe_hw *hw, u16 vf_number)
 {
+	u32 vf_shift = IXGBE_PFMBICR_SHIFT(vf_number);
+	s32 index = IXGBE_PFMBICR_INDEX(vf_number);
 	s32 ret_val = IXGBE_ERR_MBX;
-	s32 index = IXGBE_MBVFICR_INDEX(vf_number);
-	u32 vf_bit = vf_number % 16;
 
 	DEBUGFUNC("ixgbe_check_for_msg_pf");
 
-	if (!ixgbe_check_for_bit_pf(hw, IXGBE_MBVFICR_VFREQ_VF1 << vf_bit,
+	if (!ixgbe_check_for_bit_pf(hw, IXGBE_PFMBICR_VFREQ_VF1 << vf_shift,
 				    index)) {
 		ret_val = IXGBE_SUCCESS;
 		hw->mbx.stats.reqs++;
@@ -540,13 +540,13 @@ STATIC s32 ixgbe_check_for_msg_pf(struct ixgbe_hw *hw, u16 vf_number)
  **/
 STATIC s32 ixgbe_check_for_ack_pf(struct ixgbe_hw *hw, u16 vf_number)
 {
+	u32 vf_shift = IXGBE_PFMBICR_SHIFT(vf_number);
+	s32 index = IXGBE_PFMBICR_INDEX(vf_number);
 	s32 ret_val = IXGBE_ERR_MBX;
-	s32 index = IXGBE_MBVFICR_INDEX(vf_number);
-	u32 vf_bit = vf_number % 16;
 
 	DEBUGFUNC("ixgbe_check_for_ack_pf");
 
-	if (!ixgbe_check_for_bit_pf(hw, IXGBE_MBVFICR_VFACK_VF1 << vf_bit,
+	if (!ixgbe_check_for_bit_pf(hw, IXGBE_PFMBICR_VFACK_VF1 << vf_shift,
 				    index)) {
 		ret_val = IXGBE_SUCCESS;
 		hw->mbx.stats.acks++;
@@ -564,22 +564,22 @@ STATIC s32 ixgbe_check_for_ack_pf(struct ixgbe_hw *hw, u16 vf_number)
  **/
 STATIC s32 ixgbe_check_for_rst_pf(struct ixgbe_hw *hw, u16 vf_number)
 {
-	u32 reg_offset = (vf_number < 32) ? 0 : 1;
-	u32 vf_shift = vf_number % 32;
+	u32 vf_shift = IXGBE_PFVFLRE_SHIFT(vf_number);
+	u32 index = IXGBE_PFVFLRE_INDEX(vf_number);
+	s32 ret_val = IXGBE_ERR_MBX;
 	u32 vflre = 0;
-	s32 ret_val = IXGBE_ERR_MBX;
 
 	DEBUGFUNC("ixgbe_check_for_rst_pf");
 
 	switch (hw->mac.type) {
 	case ixgbe_mac_82599EB:
-		vflre = IXGBE_READ_REG(hw, IXGBE_VFLRE(reg_offset));
+		vflre = IXGBE_READ_REG(hw, IXGBE_PFVFLRE(index));
 		break;
 	case ixgbe_mac_X550:
 	case ixgbe_mac_X550EM_x:
 	case ixgbe_mac_X550EM_a:
 	case ixgbe_mac_X540:
-		vflre = IXGBE_READ_REG(hw, IXGBE_VFLREC(reg_offset));
+		vflre = IXGBE_READ_REG(hw, IXGBE_PFVFLREC(index));
 		break;
 	default:
 		break;
@@ -587,7 +587,7 @@ STATIC s32 ixgbe_check_for_rst_pf(struct ixgbe_hw *hw, u16 vf_number)
 
 	if (vflre & (1 << vf_shift)) {
 		ret_val = IXGBE_SUCCESS;
-		IXGBE_WRITE_REG(hw, IXGBE_VFLREC(reg_offset), (1 << vf_shift));
+		IXGBE_WRITE_REG(hw, IXGBE_PFVFLREC(index), (1 << vf_shift));
 		hw->mbx.stats.rsts++;
 	}
 
diff --git a/drivers/net/ixgbe/base/ixgbe_mbx.h b/drivers/net/ixgbe/base/ixgbe_mbx.h
index 28a2d94d02..f7861e6bde 100644
--- a/drivers/net/ixgbe/base/ixgbe_mbx.h
+++ b/drivers/net/ixgbe/base/ixgbe_mbx.h
@@ -30,10 +30,10 @@
 #define IXGBE_PFMAILBOX_PFU	0x00000008 /* PF owns the mailbox buffer */
 #define IXGBE_PFMAILBOX_RVFU	0x00000010 /* Reset VFU - used when VF stuck */
 
-#define IXGBE_MBVFICR_VFREQ_MASK	0x0000FFFF /* bits for VF messages */
-#define IXGBE_MBVFICR_VFREQ_VF1		0x00000001 /* bit for VF 1 message */
-#define IXGBE_MBVFICR_VFACK_MASK	0xFFFF0000 /* bits for VF acks */
-#define IXGBE_MBVFICR_VFACK_VF1		0x00010000 /* bit for VF 1 ack */
+#define IXGBE_PFMBICR_VFREQ_MASK	0x0000FFFF /* bits for VF messages */
+#define IXGBE_PFMBICR_VFREQ_VF1		0x00000001 /* bit for VF 1 message */
+#define IXGBE_PFMBICR_VFACK_MASK	0xFFFF0000 /* bits for VF acks */
+#define IXGBE_PFMBICR_VFACK_VF1		0x00010000 /* bit for VF 1 ack */
 
 
 /* If it's a IXGBE_VF_* msg then it originates in the VF and is sent to the
diff --git a/drivers/net/ixgbe/base/ixgbe_type.h b/drivers/net/ixgbe/base/ixgbe_type.h
index f709681df2..5036b2a907 100644
--- a/drivers/net/ixgbe/base/ixgbe_type.h
+++ b/drivers/net/ixgbe/base/ixgbe_type.h
@@ -451,8 +451,14 @@ struct ixgbe_nvm_version {
 #define IXGBE_PFMAILBOX(_i)	(0x04B00 + (4 * (_i))) /* 64 total */
 /* 64 Mailboxes, 16 DW each */
 #define IXGBE_PFMBMEM(_i)	(0x13000 + (64 * (_i)))
+#define IXGBE_PFMBICR_INDEX(_i)	((_i) >> 4)
+#define IXGBE_PFMBICR_SHIFT(_i)	((_i) % 16)
 #define IXGBE_PFMBICR(_i)	(0x00710 + (4 * (_i))) /* 4 total */
 #define IXGBE_PFMBIMR(_i)	(0x00720 + (4 * (_i))) /* 4 total */
+#define IXGBE_PFVFLRE(_i)	((((_i) & 1) ? 0x001C0 : 0x00600))
+#define IXGBE_PFVFLREC(_i)	(0x00700 + ((_i) * 4))
+#define IXGBE_PFVFLRE_INDEX(_i)	((_i) >> 5)
+#define IXGBE_PFVFLRE_SHIFT(_i)	((_i) % 32)
 #define IXGBE_VFRE(_i)		(0x051E0 + ((_i) * 4))
 #define IXGBE_VFTE(_i)		(0x08110 + ((_i) * 4))
 #define IXGBE_VMECM(_i)		(0x08790 + ((_i) * 4))
@@ -2866,12 +2872,6 @@ enum {
 #define IXGBE_RX_DESC_SPECIAL_PRI_MASK	0xE000 /* Priority in upper 3 bits */
 #define IXGBE_RX_DESC_SPECIAL_PRI_SHIFT	0x000D /* Priority in upper 3 of 16 */
 #define IXGBE_TX_DESC_SPECIAL_PRI_SHIFT	IXGBE_RX_DESC_SPECIAL_PRI_SHIFT
-
-/* SR-IOV specific macros */
-#define IXGBE_MBVFICR_INDEX(vf_number)	(vf_number >> 4)
-#define IXGBE_MBVFICR(_i)		(0x00710 + ((_i) * 4))
-#define IXGBE_VFLRE(_i)			(((_i & 1) ? 0x001C0 : 0x00600))
-#define IXGBE_VFLREC(_i)		 (0x00700 + ((_i) * 4))
 /* Translated register #defines */
 #define IXGBE_PVFCTRL(P)	(0x00300 + (4 * (P)))
 #define IXGBE_PVFSTATUS(P)	(0x00008 + (0 * (P)))
-- 
2.43.0