Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2024-03-04 (ice)

This series contains updates to ice driver only.

Jake changes the driver to use relative VSI index for VF VSIs as the VF
driver has no direct use of the VSI number on ice hardware. He also
reworks some Tx/Rx functions to clarify their uses, cleans up some style
issues, and utilizes kernel helper functions.

Maciej removes a redundant call to disable Tx queues on ifdown and
removes some unnecessary devm usages.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 52 insertions, 94 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 9266f25a9978..4d8111aeb0ff 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -1002,9 +1002,9 @@ static void ice_get_itr_intrl_gran(struct ice_hw *hw)
  */
 int ice_init_hw(struct ice_hw *hw)
 {
-	struct ice_aqc_get_phy_caps_data *pcaps;
+	struct ice_aqc_get_phy_caps_data *pcaps __free(kfree);
+	void *mac_buf __free(kfree);
 	u16 mac_buf_len;
-	void *mac_buf;
 	int status;
 
 	/* Set MAC type based on DeviceID */
@@ -1082,7 +1082,7 @@ int ice_init_hw(struct ice_hw *hw)
 	if (status)
 		goto err_unroll_sched;
 
-	pcaps = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*pcaps), GFP_KERNEL);
+	pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
 	if (!pcaps) {
 		status = -ENOMEM;
 		goto err_unroll_sched;
@@ -1092,7 +1092,6 @@ int ice_init_hw(struct ice_hw *hw)
 	status = ice_aq_get_phy_caps(hw->port_info, false,
 				     ICE_AQC_REPORT_TOPO_CAP_MEDIA, pcaps,
 				     NULL);
-	devm_kfree(ice_hw_to_dev(hw), pcaps);
 	if (status)
 		dev_warn(ice_hw_to_dev(hw), "Get PHY capabilities failed status = %d, continuing anyway\n",
 			 status);
@@ -1119,18 +1118,15 @@ int ice_init_hw(struct ice_hw *hw)
 
 	/* Get MAC information */
 	/* A single port can report up to two (LAN and WoL) addresses */
-	mac_buf = devm_kcalloc(ice_hw_to_dev(hw), 2,
-			       sizeof(struct ice_aqc_manage_mac_read_resp),
-			       GFP_KERNEL);
-	mac_buf_len = 2 * sizeof(struct ice_aqc_manage_mac_read_resp);
-
+	mac_buf = kcalloc(2, sizeof(struct ice_aqc_manage_mac_read_resp),
+			  GFP_KERNEL);
 	if (!mac_buf) {
 		status = -ENOMEM;
 		goto err_unroll_fltr_mgmt_struct;
 	}
 
+	mac_buf_len = 2 * sizeof(struct ice_aqc_manage_mac_read_resp);
 	status = ice_aq_manage_mac_read(hw, mac_buf, mac_buf_len, NULL);
-	devm_kfree(ice_hw_to_dev(hw), mac_buf);
 
 	if (status)
 		goto err_unroll_fltr_mgmt_struct;
@@ -1399,9 +1395,8 @@ static const struct ice_ctx_ele ice_rlan_ctx_info[] = {
  * it to HW register space and enables the hardware to prefetch descriptors
  * instead of only fetching them on demand
  */
-int
-ice_write_rxq_ctx(struct ice_hw *hw, struct ice_rlan_ctx *rlan_ctx,
-		  u32 rxq_index)
+int ice_write_rxq_ctx(struct ice_hw *hw, struct ice_rlan_ctx *rlan_ctx,
+		      u32 rxq_index)
 {
 	u8 ctx_buf[ICE_RXQ_CTX_SZ] = { 0 };
 
@@ -3277,19 +3272,14 @@ int ice_update_link_info(struct ice_port_info *pi)
 		return status;
 
 	if (li->link_info & ICE_AQ_MEDIA_AVAILABLE) {
-		struct ice_aqc_get_phy_caps_data *pcaps;
-		struct ice_hw *hw;
+		struct ice_aqc_get_phy_caps_data *pcaps __free(kfree);
 
-		hw = pi->hw;
-		pcaps = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*pcaps),
-				     GFP_KERNEL);
+		pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
 		if (!pcaps)
 			return -ENOMEM;
 
 		status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
 					     pcaps, NULL);
-
-		devm_kfree(ice_hw_to_dev(hw), pcaps);
 	}
 
 	return status;
@@ -3430,8 +3420,8 @@ ice_cfg_phy_fc(struct ice_port_info *pi, struct ice_aqc_set_phy_cfg_data *cfg,
 int
 ice_set_fc(struct ice_port_info *pi, u8 *aq_failures, bool ena_auto_link_update)
 {
+	struct ice_aqc_get_phy_caps_data *pcaps __free(kfree);
 	struct ice_aqc_set_phy_cfg_data cfg = { 0 };
-	struct ice_aqc_get_phy_caps_data *pcaps;
 	struct ice_hw *hw;
 	int status;
 
@@ -3441,7 +3431,7 @@ ice_set_fc(struct ice_port_info *pi, u8 *aq_failures, bool ena_auto_link_update)
 	*aq_failures = 0;
 	hw = pi->hw;
 
-	pcaps = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*pcaps), GFP_KERNEL);
+	pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
 	if (!pcaps)
 		return -ENOMEM;
 
@@ -3493,7 +3483,6 @@ ice_set_fc(struct ice_port_info *pi, u8 *aq_failures, bool ena_auto_link_update)
 	}
 
 out:
-	devm_kfree(ice_hw_to_dev(hw), pcaps);
 	return status;
 }
 
@@ -3572,7 +3561,7 @@ int
 ice_cfg_phy_fec(struct ice_port_info *pi, struct ice_aqc_set_phy_cfg_data *cfg,
 		enum ice_fec_mode fec)
 {
-	struct ice_aqc_get_phy_caps_data *pcaps;
+	struct ice_aqc_get_phy_caps_data *pcaps __free(kfree);
 	struct ice_hw *hw;
 	int status;
 
@@ -3641,8 +3630,6 @@ ice_cfg_phy_fec(struct ice_port_info *pi, struct ice_aqc_set_phy_cfg_data *cfg,
 	}
 
 out:
-	kfree(pcaps);
-
 	return status;
 }
 
@@ -4362,13 +4349,13 @@ ice_aq_add_rdma_qsets(struct ice_hw *hw, u8 num_qset_grps,
 /* End of FW Admin Queue command wrappers */
 
 /**
- * ice_write_byte - write a byte to a packed context structure
- * @src_ctx:  the context structure to read from
- * @dest_ctx: the context to be written to
- * @ce_info:  a description of the struct to be filled
+ * ice_pack_ctx_byte - write a byte to a packed context structure
+ * @src_ctx: unpacked source context structure
+ * @dest_ctx: packed destination context data
+ * @ce_info: context element description
  */
-static void
-ice_write_byte(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
+static void ice_pack_ctx_byte(u8 *src_ctx, u8 *dest_ctx,
+			      const struct ice_ctx_ele *ce_info)
 {
 	u8 src_byte, dest_byte, mask;
 	u8 *from, *dest;
@@ -4379,14 +4366,11 @@ ice_write_byte(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
 
 	/* prepare the bits and mask */
 	shift_width = ce_info->lsb % 8;
-	mask = (u8)(BIT(ce_info->width) - 1);
+	mask = GENMASK(ce_info->width - 1 + shift_width, shift_width);
 
 	src_byte = *from;
-	src_byte &= mask;
-
-	/* shift to correct alignment */
-	mask <<= shift_width;
 	src_byte <<= shift_width;
+	src_byte &= mask;
 
 	/* get the current bits from the target bit string */
 	dest = dest_ctx + (ce_info->lsb / 8);
@@ -4401,13 +4385,13 @@ ice_write_byte(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
 }
 
 /**
- * ice_write_word - write a word to a packed context structure
- * @src_ctx:  the context structure to read from
- * @dest_ctx: the context to be written to
- * @ce_info:  a description of the struct to be filled
+ * ice_pack_ctx_word - write a word to a packed context structure
+ * @src_ctx: unpacked source context structure
+ * @dest_ctx: packed destination context data
+ * @ce_info: context element description
  */
-static void
-ice_write_word(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
+static void ice_pack_ctx_word(u8 *src_ctx, u8 *dest_ctx,
+			      const struct ice_ctx_ele *ce_info)
 {
 	u16 src_word, mask;
 	__le16 dest_word;
@@ -4419,17 +4403,14 @@ ice_write_word(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
 
 	/* prepare the bits and mask */
 	shift_width = ce_info->lsb % 8;
-	mask = BIT(ce_info->width) - 1;
+	mask = GENMASK(ce_info->width - 1 + shift_width, shift_width);
 
 	/* don't swizzle the bits until after the mask because the mask bits
 	 * will be in a different bit position on big endian machines
 	 */
 	src_word = *(u16 *)from;
-	src_word &= mask;
-
-	/* shift to correct alignment */
-	mask <<= shift_width;
 	src_word <<= shift_width;
+	src_word &= mask;
 
 	/* get the current bits from the target bit string */
 	dest = dest_ctx + (ce_info->lsb / 8);
@@ -4444,13 +4425,13 @@ ice_write_word(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
 }
 
 /**
- * ice_write_dword - write a dword to a packed context structure
- * @src_ctx:  the context structure to read from
- * @dest_ctx: the context to be written to
- * @ce_info:  a description of the struct to be filled
+ * ice_pack_ctx_dword - write a dword to a packed context structure
+ * @src_ctx: unpacked source context structure
+ * @dest_ctx: packed destination context data
+ * @ce_info: context element description
  */
-static void
-ice_write_dword(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
+static void ice_pack_ctx_dword(u8 *src_ctx, u8 *dest_ctx,
+			       const struct ice_ctx_ele *ce_info)
 {
 	u32 src_dword, mask;
 	__le32 dest_dword;
@@ -4462,25 +4443,14 @@ ice_write_dword(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
 
 	/* prepare the bits and mask */
 	shift_width = ce_info->lsb % 8;
-
-	/* if the field width is exactly 32 on an x86 machine, then the shift
-	 * operation will not work because the SHL instructions count is masked
-	 * to 5 bits so the shift will do nothing
-	 */
-	if (ce_info->width < 32)
-		mask = BIT(ce_info->width) - 1;
-	else
-		mask = (u32)~0;
+	mask = GENMASK(ce_info->width - 1 + shift_width, shift_width);
 
 	/* don't swizzle the bits until after the mask because the mask bits
 	 * will be in a different bit position on big endian machines
 	 */
 	src_dword = *(u32 *)from;
-	src_dword &= mask;
-
-	/* shift to correct alignment */
-	mask <<= shift_width;
 	src_dword <<= shift_width;
+	src_dword &= mask;
 
 	/* get the current bits from the target bit string */
 	dest = dest_ctx + (ce_info->lsb / 8);
@@ -4495,13 +4465,13 @@ ice_write_dword(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
 }
 
 /**
- * ice_write_qword - write a qword to a packed context structure
- * @src_ctx:  the context structure to read from
- * @dest_ctx: the context to be written to
- * @ce_info:  a description of the struct to be filled
+ * ice_pack_ctx_qword - write a qword to a packed context structure
+ * @src_ctx: unpacked source context structure
+ * @dest_ctx: packed destination context data
+ * @ce_info: context element description
  */
-static void
-ice_write_qword(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
+static void ice_pack_ctx_qword(u8 *src_ctx, u8 *dest_ctx,
+			       const struct ice_ctx_ele *ce_info)
 {
 	u64 src_qword, mask;
 	__le64 dest_qword;
@@ -4513,25 +4483,14 @@ ice_write_qword(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
 
 	/* prepare the bits and mask */
 	shift_width = ce_info->lsb % 8;
-
-	/* if the field width is exactly 64 on an x86 machine, then the shift
-	 * operation will not work because the SHL instructions count is masked
-	 * to 6 bits so the shift will do nothing
-	 */
-	if (ce_info->width < 64)
-		mask = BIT_ULL(ce_info->width) - 1;
-	else
-		mask = (u64)~0;
+	mask = GENMASK_ULL(ce_info->width - 1 + shift_width, shift_width);
 
 	/* don't swizzle the bits until after the mask because the mask bits
 	 * will be in a different bit position on big endian machines
 	 */
 	src_qword = *(u64 *)from;
-	src_qword &= mask;
-
-	/* shift to correct alignment */
-	mask <<= shift_width;
 	src_qword <<= shift_width;
+	src_qword &= mask;
 
 	/* get the current bits from the target bit string */
 	dest = dest_ctx + (ce_info->lsb / 8);
@@ -4550,11 +4509,10 @@ ice_write_qword(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
  * @hw: pointer to the hardware structure
  * @src_ctx:  pointer to a generic non-packed context structure
  * @dest_ctx: pointer to memory for the packed structure
- * @ce_info:  a description of the structure to be transformed
+ * @ce_info: List of Rx context elements
  */
-int
-ice_set_ctx(struct ice_hw *hw, u8 *src_ctx, u8 *dest_ctx,
-	    const struct ice_ctx_ele *ce_info)
+int ice_set_ctx(struct ice_hw *hw, u8 *src_ctx, u8 *dest_ctx,
+		const struct ice_ctx_ele *ce_info)
 {
 	int f;
 
@@ -4570,16 +4528,16 @@ ice_set_ctx(struct ice_hw *hw, u8 *src_ctx, u8 *dest_ctx,
 		}
 		switch (ce_info[f].size_of) {
 		case sizeof(u8):
-			ice_write_byte(src_ctx, dest_ctx, &ce_info[f]);
+			ice_pack_ctx_byte(src_ctx, dest_ctx, &ce_info[f]);
 			break;
 		case sizeof(u16):
-			ice_write_word(src_ctx, dest_ctx, &ce_info[f]);
+			ice_pack_ctx_word(src_ctx, dest_ctx, &ce_info[f]);
 			break;
 		case sizeof(u32):
-			ice_write_dword(src_ctx, dest_ctx, &ce_info[f]);
+			ice_pack_ctx_dword(src_ctx, dest_ctx, &ce_info[f]);
 			break;
 		case sizeof(u64):
-			ice_write_qword(src_ctx, dest_ctx, &ce_info[f]);
+			ice_pack_ctx_qword(src_ctx, dest_ctx, &ce_info[f]);
 			break;
 		default:
 			return -EINVAL;