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

Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2020-07-01

This series contains updates to the ice driver only.

Jacob implements a devlink region for device capabilities.

Bruce removes structs containing only one-element arrays that are either
unused or only used for indexing. Instead, use pointer arithmetic or
other indexing to access the elements. Converts "C struct hack"
variable-length types to the preferred C99 flexible array member.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/intel/ice/ice.h

@@ -373,6 +373,7 @@ struct ice_pf {
 	struct devlink_port devlink_port;
 
 	struct devlink_region *nvm_region;
+	struct devlink_region *devcaps_region;
 
 	/* OS reserved IRQ details */
 	struct msix_entry *msix_entries;

drivers/net/ethernet/intel/ice/ice_adminq_cmd.h

@@ -215,13 +215,6 @@ struct ice_aqc_get_sw_cfg_resp_elem {
 #define ICE_AQC_GET_SW_CONF_RESP_IS_VF		BIT(15)
 };
 
-/* The response buffer is as follows. Note that the length of the
- * elements array varies with the length of the command response.
- */
-struct ice_aqc_get_sw_cfg_resp {
-	struct ice_aqc_get_sw_cfg_resp_elem elements[1];
-};
-
 /* These resource type defines are used for all switch resource
  * commands where a resource type is required, such as:
  * Get Resource Allocation command (indirect 0x0204)
@@ -274,7 +267,7 @@ struct ice_aqc_alloc_free_res_elem {
 #define ICE_AQC_RES_TYPE_VSI_PRUNE_LIST_M	\
 				(0xF << ICE_AQC_RES_TYPE_VSI_PRUNE_LIST_S)
 	__le16 num_elems;
-	struct ice_aqc_res_elem elem[1];
+	struct ice_aqc_res_elem elem[];
 };
 
 /* Add VSI (indirect 0x0210)
@@ -568,8 +561,8 @@ struct ice_sw_rule_lkup_rx_tx {
 	 * lookup-type
 	 */
 	__le16 hdr_len;
-	u8 hdr[1];
-} __packed;
+	u8 hdr[];
+};
 
 /* Add/Update/Remove large action command/response entry
  * "index" is returned as part of a response to a successful Add command, and
@@ -578,7 +571,6 @@ struct ice_sw_rule_lkup_rx_tx {
 struct ice_sw_rule_lg_act {
 	__le16 index; /* Index in large action table */
 	__le16 size;
-	__le32 act[1]; /* array of size for actions */
 	/* Max number of large actions */
 #define ICE_MAX_LG_ACT	4
 	/* Bit 0:1 - Action type */
@@ -629,6 +621,7 @@ struct ice_sw_rule_lg_act {
 #define ICE_LG_ACT_STAT_COUNT		0x7
 #define ICE_LG_ACT_STAT_COUNT_S		3
 #define ICE_LG_ACT_STAT_COUNT_M		(0x7F << ICE_LG_ACT_STAT_COUNT_S)
+	__le32 act[]; /* array of size for actions */
 };
 
 /* Add/Update/Remove VSI list command/response entry
@@ -638,7 +631,7 @@ struct ice_sw_rule_lg_act {
 struct ice_sw_rule_vsi_list {
 	__le16 index; /* Index of VSI/Prune list */
 	__le16 number_vsi;
-	__le16 vsi[1]; /* Array of number_vsi VSI numbers */
+	__le16 vsi[]; /* Array of number_vsi VSI numbers */
 };
 
 /* Query VSI list command/response entry */
@@ -695,14 +688,6 @@ struct ice_aqc_sched_elem_cmd {
 	__le32 addr_low;
 };
 
-/* This is the buffer for:
- * Suspend Nodes (indirect 0x0409)
- * Resume Nodes (indirect 0x040A)
- */
-struct ice_aqc_suspend_resume_elem {
-	__le32 teid[1];
-};
-
 struct ice_aqc_elem_info_bw {
 	__le16 bw_profile_idx;
 	__le16 bw_alloc;
@@ -753,15 +738,7 @@ struct ice_aqc_txsched_topo_grp_info_hdr {
 
 struct ice_aqc_add_elem {
 	struct ice_aqc_txsched_topo_grp_info_hdr hdr;
-	struct ice_aqc_txsched_elem_data generic[1];
-};
-
-struct ice_aqc_conf_elem {
-	struct ice_aqc_txsched_elem_data generic[1];
-};
-
-struct ice_aqc_get_elem {
-	struct ice_aqc_txsched_elem_data generic[1];
+	struct ice_aqc_txsched_elem_data generic[];
 };
 
 struct ice_aqc_get_topo_elem {
@@ -772,7 +749,7 @@ struct ice_aqc_get_topo_elem {
 
 struct ice_aqc_delete_elem {
 	struct ice_aqc_txsched_topo_grp_info_hdr hdr;
-	__le32 teid[1];
+	__le32 teid[];
 };
 
 /* Query Port ETS (indirect 0x040E)
@@ -835,10 +812,6 @@ struct ice_aqc_rl_profile_elem {
 	__le16 rl_encode;
 };
 
-struct ice_aqc_rl_profile_generic_elem {
-	struct ice_aqc_rl_profile_elem generic[1];
-};
-
 /* Query Scheduler Resource Allocation (indirect 0x0412)
  * This indirect command retrieves the scheduler resources allocated by
  * EMP Firmware to the given PF.
@@ -1537,7 +1510,7 @@ struct ice_aqc_add_tx_qgrp {
 	__le32 parent_teid;
 	u8 num_txqs;
 	u8 rsvd[3];
-	struct ice_aqc_add_txqs_perq txqs[1];
+	struct ice_aqc_add_txqs_perq txqs[];
 };
 
 /* Disable Tx LAN Queues (indirect 0x0C31) */
@@ -1575,18 +1548,13 @@ struct ice_aqc_dis_txq_item {
 	u8 num_qs;
 	u8 rsvd;
 	/* The length of the q_id array varies according to num_qs */
-	__le16 q_id[1];
-	/* This only applies from F8 onward */
 #define ICE_AQC_Q_DIS_BUF_ELEM_TYPE_S		15
 #define ICE_AQC_Q_DIS_BUF_ELEM_TYPE_LAN_Q	\
 			(0 << ICE_AQC_Q_DIS_BUF_ELEM_TYPE_S)
 #define ICE_AQC_Q_DIS_BUF_ELEM_TYPE_RDMA_QSET	\
 			(1 << ICE_AQC_Q_DIS_BUF_ELEM_TYPE_S)
-};
-
-struct ice_aqc_dis_txq {
-	struct ice_aqc_dis_txq_item qgrps[1];
-};
+	__le16 q_id[];
+} __packed;
 
 /* Configure Firmware Logging Command (indirect 0xFF09)
  * Logging Information Read Response (indirect 0xFF10)
@@ -1636,12 +1604,7 @@ enum ice_aqc_fw_logging_mod {
 	ICE_AQC_FW_LOG_ID_MAX,
 };
 
-/* This is the buffer for both of the logging commands.
- * The entry array size depends on the datalen parameter in the descriptor.
- * There will be a total of datalen / 2 entries.
- */
-struct ice_aqc_fw_logging_data {
-	__le16 entry[1];
+/* Defines for both above FW logging command/response buffers */
 #define ICE_AQC_FW_LOG_ID_S		0
 #define ICE_AQC_FW_LOG_ID_M		(0xFFF << ICE_AQC_FW_LOG_ID_S)
 
@@ -1654,7 +1617,6 @@ struct ice_aqc_fw_logging_data {
 #define ICE_AQC_FW_LOG_INIT_EN		BIT(13)	/* Used by command */
 #define ICE_AQC_FW_LOG_FLOW_EN		BIT(14)	/* Used by command */
 #define ICE_AQC_FW_LOG_ERR_EN		BIT(15)	/* Used by command */
-};
 
 /* Get/Clear FW Log (indirect 0xFF11) */
 struct ice_aqc_get_clear_fw_log {
@@ -1716,7 +1678,7 @@ struct ice_aqc_get_pkg_info {
 /* Get Package Info List response buffer format (0x0C43) */
 struct ice_aqc_get_pkg_info_resp {
 	__le32 count;
-	struct ice_aqc_get_pkg_info pkg_info[1];
+	struct ice_aqc_get_pkg_info pkg_info[];
 };
 
 /* Lan Queue Overflow Event (direct, 0x1001) */

drivers/net/ethernet/intel/ice/ice_base.c

@@ -635,10 +635,10 @@ int
 ice_vsi_cfg_txq(struct ice_vsi *vsi, struct ice_ring *ring,
 		struct ice_aqc_add_tx_qgrp *qg_buf)
 {
+	u8 buf_len = struct_size(qg_buf, txqs, 1);
 	struct ice_tlan_ctx tlan_ctx = { 0 };
 	struct ice_aqc_add_txqs_perq *txq;
 	struct ice_pf *pf = vsi->back;
-	u8 buf_len = sizeof(*qg_buf);
 	struct ice_hw *hw = &pf->hw;
 	enum ice_status status;
 	u16 pf_q;

drivers/net/ethernet/intel/ice/ice_common.h

@@ -87,6 +87,9 @@ enum ice_status
 ice_aq_get_phy_caps(struct ice_port_info *pi, bool qual_mods, u8 report_mode,
 		    struct ice_aqc_get_phy_caps_data *caps,
 		    struct ice_sq_cd *cd);
+enum ice_status
+ice_aq_list_caps(struct ice_hw *hw, void *buf, u16 buf_size, u32 *cap_count,
+		 enum ice_adminq_opc opc, struct ice_sq_cd *cd);
 void
 ice_update_phy_type(u64 *phy_type_low, u64 *phy_type_high,
 		    u16 link_speeds_bitmap);
@@ -152,5 +155,5 @@ ice_stat_update32(struct ice_hw *hw, u32 reg, bool prev_stat_loaded,
 		  u64 *prev_stat, u64 *cur_stat);
 enum ice_status
 ice_sched_query_elem(struct ice_hw *hw, u32 node_teid,
-		     struct ice_aqc_get_elem *buf);
+		     struct ice_aqc_txsched_elem_data *buf);
 #endif /* _ICE_COMMON_H_ */

drivers/net/ethernet/intel/ice/ice_dcb.c

@@ -1362,7 +1362,7 @@ ice_update_port_tc_tree_cfg(struct ice_port_info *pi,
 			    struct ice_aqc_port_ets_elem *buf)
 {
 	struct ice_sched_node *node, *tc_node;
-	struct ice_aqc_get_elem elem;
+	struct ice_aqc_txsched_elem_data elem;
 	enum ice_status status = 0;
 	u32 teid1, teid2;
 	u8 i, j;
@@ -1404,7 +1404,7 @@ ice_update_port_tc_tree_cfg(struct ice_port_info *pi,
 		/* new TC */
 		status = ice_sched_query_elem(pi->hw, teid2, &elem);
 		if (!status)
-			status = ice_sched_add_node(pi, 1, &elem.generic[0]);
+			status = ice_sched_add_node(pi, 1, &elem);
 		if (status)
 			break;
 		/* update the TC number */

drivers/net/ethernet/intel/ice/ice_dcb.h

@@ -87,7 +87,7 @@
 struct ice_lldp_org_tlv {
 	__be16 typelen;
 	__be32 ouisubtype;
-	u8 tlvinfo[1];
+	u8 tlvinfo[];
 } __packed;
 
 struct ice_cee_tlv_hdr {
@@ -109,7 +109,7 @@ struct ice_cee_feat_tlv {
 #define ICE_CEE_FEAT_TLV_WILLING_M	0x40
 #define ICE_CEE_FEAT_TLV_ERR_M		0x20
 	u8 subtype;
-	u8 tlvinfo[1];
+	u8 tlvinfo[];
 };
 
 struct ice_cee_app_prio {

drivers/net/ethernet/intel/ice/ice_devlink.c

@@ -397,12 +397,60 @@ static int ice_devlink_nvm_snapshot(struct devlink *devlink,
 	return 0;
 }
 
+/**
+ * ice_devlink_devcaps_snapshot - Capture snapshot of device capabilities
+ * @devlink: the devlink instance
+ * @extack: extended ACK response structure
+ * @data: on exit points to snapshot data buffer
+ *
+ * This function is called in response to the DEVLINK_CMD_REGION_TRIGGER for
+ * the device-caps devlink region. It captures a snapshot of the device
+ * capabilities reported by firmware.
+ *
+ * @returns zero on success, and updates the data pointer. Returns a non-zero
+ * error code on failure.
+ */
+static int
+ice_devlink_devcaps_snapshot(struct devlink *devlink,
+			     struct netlink_ext_ack *extack, u8 **data)
+{
+	struct ice_pf *pf = devlink_priv(devlink);
+	struct device *dev = ice_pf_to_dev(pf);
+	struct ice_hw *hw = &pf->hw;
+	enum ice_status status;
+	void *devcaps;
+
+	devcaps = vzalloc(ICE_AQ_MAX_BUF_LEN);
+	if (!devcaps)
+		return -ENOMEM;
+
+	status = ice_aq_list_caps(hw, devcaps, ICE_AQ_MAX_BUF_LEN, NULL,
+				  ice_aqc_opc_list_dev_caps, NULL);
+	if (status) {
+		dev_dbg(dev, "ice_aq_list_caps: failed to read device capabilities, err %d aq_err %d\n",
+			status, hw->adminq.sq_last_status);
+		NL_SET_ERR_MSG_MOD(extack, "Failed to read device capabilities");
+		vfree(devcaps);
+		return -EIO;
+	}
+
+	*data = (u8 *)devcaps;
+
+	return 0;
+}
+
 static const struct devlink_region_ops ice_nvm_region_ops = {
 	.name = "nvm-flash",
 	.destructor = vfree,
 	.snapshot = ice_devlink_nvm_snapshot,
 };
 
+static const struct devlink_region_ops ice_devcaps_region_ops = {
+	.name = "device-caps",
+	.destructor = vfree,
+	.snapshot = ice_devlink_devcaps_snapshot,
+};
+
 /**
  * ice_devlink_init_regions - Initialize devlink regions
  * @pf: the PF device structure
@@ -424,6 +472,15 @@ void ice_devlink_init_regions(struct ice_pf *pf)
 			PTR_ERR(pf->nvm_region));
 		pf->nvm_region = NULL;
 	}
+
+	pf->devcaps_region = devlink_region_create(devlink,
+						   &ice_devcaps_region_ops, 10,
+						   ICE_AQ_MAX_BUF_LEN);
+	if (IS_ERR(pf->devcaps_region)) {
+		dev_err(dev, "failed to create device-caps devlink region, err %ld\n",
+			PTR_ERR(pf->devcaps_region));
+		pf->devcaps_region = NULL;
+	}
 }
 
 /**
@@ -436,4 +493,6 @@ void ice_devlink_destroy_regions(struct ice_pf *pf)
 {
 	if (pf->nvm_region)
 		devlink_region_destroy(pf->nvm_region);
+	if (pf->devcaps_region)
+		devlink_region_destroy(pf->devcaps_region);
 }

drivers/net/ethernet/intel/ice/ice_flex_pipe.c

@@ -1121,8 +1121,7 @@ static enum ice_status ice_get_pkg_info(struct ice_hw *hw)
 	u16 size;
 	u32 i;
 
-	size = sizeof(*pkg_info) + (sizeof(pkg_info->pkg_info[0]) *
-				    (ICE_PKG_CNT - 1));
+	size = struct_size(pkg_info, pkg_info, ICE_PKG_CNT);
 	pkg_info = kzalloc(size, GFP_KERNEL);
 	if (!pkg_info)
 		return ICE_ERR_NO_MEMORY;
@@ -1180,7 +1179,7 @@ static enum ice_status ice_verify_pkg(struct ice_pkg_hdr *pkg, u32 len)
 	u32 seg_count;
 	u32 i;
 
-	if (len < sizeof(*pkg))
+	if (len < struct_size(pkg, seg_offset, 1))
 		return ICE_ERR_BUF_TOO_SHORT;
 
 	if (pkg->pkg_format_ver.major != ICE_PKG_FMT_VER_MAJ ||
@@ -1195,7 +1194,7 @@ static enum ice_status ice_verify_pkg(struct ice_pkg_hdr *pkg, u32 len)
 		return ICE_ERR_CFG;
 
 	/* make sure segment array fits in package length */
-	if (len < sizeof(*pkg) + ((seg_count - 1) * sizeof(pkg->seg_offset)))
+	if (len < struct_size(pkg, seg_offset, seg_count))
 		return ICE_ERR_BUF_TOO_SHORT;
 
 	/* all segments must fit within length */
@@ -1300,7 +1299,7 @@ ice_chk_pkg_compat(struct ice_hw *hw, struct ice_pkg_hdr *ospkg,
 	}
 
 	/* Check if FW is compatible with the OS package */
-	size = struct_size(pkg, pkg_info, ICE_PKG_CNT - 1);
+	size = struct_size(pkg, pkg_info, ICE_PKG_CNT);
 	pkg = kzalloc(size, GFP_KERNEL);
 	if (!pkg)
 		return ICE_ERR_NO_MEMORY;
@@ -1764,13 +1763,13 @@ ice_create_tunnel(struct ice_hw *hw, enum ice_tunnel_type type, u16 port)
 		goto ice_create_tunnel_err;
 
 	sect_rx = ice_pkg_buf_alloc_section(bld, ICE_SID_RXPARSER_BOOST_TCAM,
-					    sizeof(*sect_rx));
+					    struct_size(sect_rx, tcam, 1));
 	if (!sect_rx)
 		goto ice_create_tunnel_err;
 	sect_rx->count = cpu_to_le16(1);
 
 	sect_tx = ice_pkg_buf_alloc_section(bld, ICE_SID_TXPARSER_BOOST_TCAM,
-					    sizeof(*sect_tx));
+					    struct_size(sect_tx, tcam, 1));
 	if (!sect_tx)
 		goto ice_create_tunnel_err;
 	sect_tx->count = cpu_to_le16(1);
@@ -1847,7 +1846,7 @@ enum ice_status ice_destroy_tunnel(struct ice_hw *hw, u16 port, bool all)
 	}
 
 	/* size of section - there is at least one entry */
-	size = struct_size(sect_rx, tcam, count - 1);
+	size = struct_size(sect_rx, tcam, count);
 
 	bld = ice_pkg_buf_alloc(hw);
 	if (!bld) {
@@ -3324,8 +3323,8 @@ ice_prof_bld_es(struct ice_hw *hw, enum ice_block blk,
 			u32 id;
 
 			id = ice_sect_id(blk, ICE_VEC_TBL);
-			p = (struct ice_pkg_es *)
-				ice_pkg_buf_alloc_section(bld, id, sizeof(*p) +
+			p = ice_pkg_buf_alloc_section(bld, id,
+						      struct_size(p, es, 1) +
 						      vec_size -
 						      sizeof(p->es[0]));
 
@@ -3360,8 +3359,8 @@ ice_prof_bld_tcam(struct ice_hw *hw, enum ice_block blk,
 			u32 id;
 
 			id = ice_sect_id(blk, ICE_PROF_TCAM);
-			p = (struct ice_prof_id_section *)
-				ice_pkg_buf_alloc_section(bld, id, sizeof(*p));
+			p = ice_pkg_buf_alloc_section(bld, id,
+						      struct_size(p, entry, 1));
 
 			if (!p)
 				return ICE_ERR_MAX_LIMIT;
@@ -3396,8 +3395,8 @@ ice_prof_bld_xlt1(enum ice_block blk, struct ice_buf_build *bld,
 			u32 id;
 
 			id = ice_sect_id(blk, ICE_XLT1);
-			p = (struct ice_xlt1_section *)
-				ice_pkg_buf_alloc_section(bld, id, sizeof(*p));
+			p = ice_pkg_buf_alloc_section(bld, id,
+						      struct_size(p, value, 1));
 
 			if (!p)
 				return ICE_ERR_MAX_LIMIT;
@@ -3431,8 +3430,8 @@ ice_prof_bld_xlt2(enum ice_block blk, struct ice_buf_build *bld,
 		case ICE_VSI_MOVE:
 		case ICE_VSIG_REM:
 			id = ice_sect_id(blk, ICE_XLT2);
-			p = (struct ice_xlt2_section *)
-				ice_pkg_buf_alloc_section(bld, id, sizeof(*p));
+			p = ice_pkg_buf_alloc_section(bld, id,
+						      struct_size(p, value, 1));
 
 			if (!p)
 				return ICE_ERR_MAX_LIMIT;

drivers/net/ethernet/intel/ice/ice_flex_type.h

@@ -22,7 +22,7 @@ struct ice_fv {
 struct ice_pkg_hdr {
 	struct ice_pkg_ver pkg_format_ver;
 	__le32 seg_count;
-	__le32 seg_offset[1];
+	__le32 seg_offset[];
 };
 
 /* generic segment */
@@ -53,12 +53,12 @@ struct ice_device_id_entry {
 struct ice_seg {
 	struct ice_generic_seg_hdr hdr;
 	__le32 device_table_count;
-	struct ice_device_id_entry device_table[1];
+	struct ice_device_id_entry device_table[];
 };
 
 struct ice_nvm_table {
 	__le32 table_count;
-	__le32 vers[1];
+	__le32 vers[];
 };
 
 struct ice_buf {
@@ -68,7 +68,7 @@ struct ice_buf {
 
 struct ice_buf_table {
 	__le32 buf_count;
-	struct ice_buf buf_array[1];
+	struct ice_buf buf_array[];
 };
 
 /* global metadata specific segment */
@@ -101,11 +101,12 @@ struct ice_section_entry {
 struct ice_buf_hdr {
 	__le16 section_count;
 	__le16 data_end;
-	struct ice_section_entry section_entry[1];
+	struct ice_section_entry section_entry[];
 };
 
 #define ICE_MAX_ENTRIES_IN_BUF(hd_sz, ent_sz) ((ICE_PKG_BUF_SIZE - \
-	sizeof(struct ice_buf_hdr) - (hd_sz)) / (ent_sz))
+	struct_size((struct ice_buf_hdr *)0, section_entry, 1) - (hd_sz)) /\
+	(ent_sz))
 
 /* ice package section IDs */
 #define ICE_SID_XLT0_SW			10
@@ -198,17 +199,17 @@ struct ice_label {
 
 struct ice_label_section {
 	__le16 count;
-	struct ice_label label[1];
+	struct ice_label label[];
 };
 
 #define ICE_MAX_LABELS_IN_BUF ICE_MAX_ENTRIES_IN_BUF( \
-	sizeof(struct ice_label_section) - sizeof(struct ice_label), \
-	sizeof(struct ice_label))
+	struct_size((struct ice_label_section *)0, label, 1) - \
+	sizeof(struct ice_label), sizeof(struct ice_label))
 
 struct ice_sw_fv_section {
 	__le16 count;
 	__le16 base_offset;
-	struct ice_fv fv[1];
+	struct ice_fv fv[];
 };
 
 /* The BOOST TCAM stores the match packet header in reverse order, meaning
@@ -245,30 +246,30 @@ struct ice_boost_tcam_entry {
 struct ice_boost_tcam_section {
 	__le16 count;
 	__le16 reserved;
-	struct ice_boost_tcam_entry tcam[1];
+	struct ice_boost_tcam_entry tcam[];
 };
 
 #define ICE_MAX_BST_TCAMS_IN_BUF ICE_MAX_ENTRIES_IN_BUF( \
-	sizeof(struct ice_boost_tcam_section) - \
+	struct_size((struct ice_boost_tcam_section *)0, tcam, 1) - \
 	sizeof(struct ice_boost_tcam_entry), \
 	sizeof(struct ice_boost_tcam_entry))
 
 struct ice_xlt1_section {
 	__le16 count;
 	__le16 offset;
-	u8 value[1];
-} __packed;
+	u8 value[];
+};
 
 struct ice_xlt2_section {
 	__le16 count;
 	__le16 offset;
-	__le16 value[1];
+	__le16 value[];
 };
 
 struct ice_prof_redir_section {
 	__le16 count;
 	__le16 offset;
-	u8 redir_value[1];
+	u8 redir_value[];
 };
 
 /* package buffer building */
@@ -327,7 +328,7 @@ struct ice_tunnel_table {
 struct ice_pkg_es {
 	__le16 count;
 	__le16 offset;
-	struct ice_fv_word es[1];
+	struct ice_fv_word es[];
 };
 
 struct ice_es {
@@ -461,8 +462,8 @@ struct ice_prof_tcam_entry {
 
 struct ice_prof_id_section {
 	__le16 count;
-	struct ice_prof_tcam_entry entry[1];
-} __packed;
+	struct ice_prof_tcam_entry entry[];
+};
 
 struct ice_prof_tcam {
 	u32 sid;

drivers/net/ethernet/intel/ice/ice_lib.c

@@ -1667,7 +1667,7 @@ ice_vsi_cfg_txqs(struct ice_vsi *vsi, struct ice_ring **rings)
 	u16 q_idx = 0;
 	int err = 0;
 
-	qg_buf = kzalloc(sizeof(*qg_buf), GFP_KERNEL);
+	qg_buf = kzalloc(struct_size(qg_buf, txqs, 1), GFP_KERNEL);
 	if (!qg_buf)
 		return -ENOMEM;
 

drivers/net/ethernet/intel/ice/ice_sched.c

@@ -129,7 +129,7 @@ ice_aqc_send_sched_elem_cmd(struct ice_hw *hw, enum ice_adminq_opc cmd_opc,
  */
 enum ice_status
 ice_aq_query_sched_elems(struct ice_hw *hw, u16 elems_req,
-			 struct ice_aqc_get_elem *buf, u16 buf_size,
+			 struct ice_aqc_txsched_elem_data *buf, u16 buf_size,
 			 u16 *elems_ret, struct ice_sq_cd *cd)
 {
 	return ice_aqc_send_sched_elem_cmd(hw, ice_aqc_opc_get_sched_elems,
@@ -149,8 +149,8 @@ enum ice_status
 ice_sched_add_node(struct ice_port_info *pi, u8 layer,
 		   struct ice_aqc_txsched_elem_data *info)
 {
+	struct ice_aqc_txsched_elem_data elem;
 	struct ice_sched_node *parent;
-	struct ice_aqc_get_elem elem;
 	struct ice_sched_node *node;
 	enum ice_status status;
 	struct ice_hw *hw;
@@ -195,7 +195,7 @@ ice_sched_add_node(struct ice_port_info *pi, u8 layer,
 	node->parent = parent;
 	node->tx_sched_layer = layer;
 	parent->children[parent->num_children++] = node;
-	memcpy(&node->info, &elem.generic[0], sizeof(node->info));
+	node->info = elem;
 	return 0;
 }
 
@@ -238,7 +238,7 @@ ice_sched_remove_elems(struct ice_hw *hw, struct ice_sched_node *parent,
 	enum ice_status status;
 	u16 buf_size;
 
-	buf_size = sizeof(*buf) + sizeof(u32) * (num_nodes - 1);
+	buf_size = struct_size(buf, teid, num_nodes);
 	buf = devm_kzalloc(ice_hw_to_dev(hw), buf_size, GFP_KERNEL);
 	if (!buf)
 		return ICE_ERR_NO_MEMORY;
@@ -423,7 +423,7 @@ ice_aq_add_sched_elems(struct ice_hw *hw, u16 grps_req,
  */
 static enum ice_status
 ice_aq_cfg_sched_elems(struct ice_hw *hw, u16 elems_req,
-		       struct ice_aqc_conf_elem *buf, u16 buf_size,
+		       struct ice_aqc_txsched_elem_data *buf, u16 buf_size,
 		       u16 *elems_cfgd, struct ice_sq_cd *cd)
 {
 	return ice_aqc_send_sched_elem_cmd(hw, ice_aqc_opc_cfg_sched_elems,
@@ -443,8 +443,7 @@ ice_aq_cfg_sched_elems(struct ice_hw *hw, u16 elems_req,
  * Suspend scheduling elements (0x0409)
  */
 static enum ice_status
-ice_aq_suspend_sched_elems(struct ice_hw *hw, u16 elems_req,
-			   struct ice_aqc_suspend_resume_elem *buf,
+ice_aq_suspend_sched_elems(struct ice_hw *hw, u16 elems_req, __le32 *buf,
 			   u16 buf_size, u16 *elems_ret, struct ice_sq_cd *cd)
 {
 	return ice_aqc_send_sched_elem_cmd(hw, ice_aqc_opc_suspend_sched_elems,
@@ -464,8 +463,7 @@ ice_aq_suspend_sched_elems(struct ice_hw *hw, u16 elems_req,
  * resume scheduling elements (0x040A)
  */
 static enum ice_status
-ice_aq_resume_sched_elems(struct ice_hw *hw, u16 elems_req,
-			  struct ice_aqc_suspend_resume_elem *buf,
+ice_aq_resume_sched_elems(struct ice_hw *hw, u16 elems_req, __le32 *buf,
 			  u16 buf_size, u16 *elems_ret, struct ice_sq_cd *cd)
 {
 	return ice_aqc_send_sched_elem_cmd(hw, ice_aqc_opc_resume_sched_elems,
@@ -506,9 +504,9 @@ static enum ice_status
 ice_sched_suspend_resume_elems(struct ice_hw *hw, u8 num_nodes, u32 *node_teids,
 			       bool suspend)
 {
-	struct ice_aqc_suspend_resume_elem *buf;
 	u16 i, buf_size, num_elem_ret = 0;
 	enum ice_status status;
+	__le32 *buf;
 
 	buf_size = sizeof(*buf) * num_nodes;
 	buf = devm_kzalloc(ice_hw_to_dev(hw), buf_size, GFP_KERNEL);
@@ -516,7 +514,7 @@ ice_sched_suspend_resume_elems(struct ice_hw *hw, u8 num_nodes, u32 *node_teids,
 		return ICE_ERR_NO_MEMORY;
 
 	for (i = 0; i < num_nodes; i++)
-		buf->teid[i] = cpu_to_le32(node_teids[i]);
+		buf[i] = cpu_to_le32(node_teids[i]);
 
 	if (suspend)
 		status = ice_aq_suspend_sched_elems(hw, num_nodes, buf,
@@ -591,7 +589,7 @@ ice_alloc_lan_q_ctx(struct ice_hw *hw, u16 vsi_handle, u8 tc, u16 new_numqs)
  */
 static enum ice_status
 ice_aq_rl_profile(struct ice_hw *hw, enum ice_adminq_opc opcode,
-		  u16 num_profiles, struct ice_aqc_rl_profile_generic_elem *buf,
+		  u16 num_profiles, struct ice_aqc_rl_profile_elem *buf,
 		  u16 buf_size, u16 *num_processed, struct ice_sq_cd *cd)
 {
 	struct ice_aqc_rl_profile *cmd;
@@ -622,13 +620,11 @@ ice_aq_rl_profile(struct ice_hw *hw, enum ice_adminq_opc opcode,
  */
 static enum ice_status
 ice_aq_add_rl_profile(struct ice_hw *hw, u16 num_profiles,
-		      struct ice_aqc_rl_profile_generic_elem *buf,
-		      u16 buf_size, u16 *num_profiles_added,
-		      struct ice_sq_cd *cd)
+		      struct ice_aqc_rl_profile_elem *buf, u16 buf_size,
+		      u16 *num_profiles_added, struct ice_sq_cd *cd)
 {
-	return ice_aq_rl_profile(hw, ice_aqc_opc_add_rl_profiles,
-				 num_profiles, buf,
-				 buf_size, num_profiles_added, cd);
+	return ice_aq_rl_profile(hw, ice_aqc_opc_add_rl_profiles, num_profiles,
+				 buf, buf_size, num_profiles_added, cd);
 }
 
 /**
@@ -644,13 +640,12 @@ ice_aq_add_rl_profile(struct ice_hw *hw, u16 num_profiles,
  */
 static enum ice_status
 ice_aq_remove_rl_profile(struct ice_hw *hw, u16 num_profiles,
-			 struct ice_aqc_rl_profile_generic_elem *buf,
-			 u16 buf_size, u16 *num_profiles_removed,
-			 struct ice_sq_cd *cd)
+			 struct ice_aqc_rl_profile_elem *buf, u16 buf_size,
+			 u16 *num_profiles_removed, struct ice_sq_cd *cd)
 {
 	return ice_aq_rl_profile(hw, ice_aqc_opc_remove_rl_profiles,
-				 num_profiles, buf,
-				 buf_size, num_profiles_removed, cd);
+				 num_profiles, buf, buf_size,
+				 num_profiles_removed, cd);
 }
 
 /**
@@ -666,7 +661,7 @@ static enum ice_status
 ice_sched_del_rl_profile(struct ice_hw *hw,
 			 struct ice_aqc_rl_profile_info *rl_info)
 {
-	struct ice_aqc_rl_profile_generic_elem *buf;
+	struct ice_aqc_rl_profile_elem *buf;
 	u16 num_profiles_removed;
 	enum ice_status status;
 	u16 num_profiles = 1;
@@ -675,8 +670,7 @@ ice_sched_del_rl_profile(struct ice_hw *hw,
 		return ICE_ERR_IN_USE;
 
 	/* Safe to remove profile ID */
-	buf = (struct ice_aqc_rl_profile_generic_elem *)
-		&rl_info->profile;
+	buf = &rl_info->profile;
 	status = ice_aq_remove_rl_profile(hw, num_profiles, buf, sizeof(*buf),
 					  &num_profiles_removed, NULL);
 	if (status || num_profiles_removed != num_profiles)
@@ -831,7 +825,7 @@ ice_sched_add_elems(struct ice_port_info *pi, struct ice_sched_node *tc_node,
 	size_t buf_size;
 	u32 teid;
 
-	buf_size = struct_size(buf, generic, num_nodes - 1);
+	buf_size = struct_size(buf, generic, num_nodes);
 	buf = devm_kzalloc(ice_hw_to_dev(hw), buf_size, GFP_KERNEL);
 	if (!buf)
 		return ICE_ERR_NO_MEMORY;
@@ -1867,7 +1861,7 @@ static void ice_sched_rm_unused_rl_prof(struct ice_port_info *pi)
  * @node: pointer to node
  * @info: node info to update
  *
- * It updates the HW DB, and local SW DB of node. It updates the scheduling
+ * Update the HW DB, and local SW DB of node. Update the scheduling
  * parameters of node from argument info data buffer (Info->data buf) and
  * returns success or error on config sched element failure. The caller
  * needs to hold scheduler lock.
@@ -1876,18 +1870,18 @@ static enum ice_status
 ice_sched_update_elem(struct ice_hw *hw, struct ice_sched_node *node,
 		      struct ice_aqc_txsched_elem_data *info)
 {
-	struct ice_aqc_conf_elem buf;
+	struct ice_aqc_txsched_elem_data buf;
 	enum ice_status status;
 	u16 elem_cfgd = 0;
 	u16 num_elems = 1;
 
-	buf.generic[0] = *info;
+	buf = *info;
 	/* Parent TEID is reserved field in this aq call */
-	buf.generic[0].parent_teid = 0;
+	buf.parent_teid = 0;
 	/* Element type is reserved field in this aq call */
-	buf.generic[0].data.elem_type = 0;
+	buf.data.elem_type = 0;
 	/* Flags is reserved field in this aq call */
-	buf.generic[0].data.flags = 0;
+	buf.data.flags = 0;
 
 	/* Update HW DB */
 	/* Configure element node */
@@ -2131,9 +2125,9 @@ static struct ice_aqc_rl_profile_info *
 ice_sched_add_rl_profile(struct ice_port_info *pi,
 			 enum ice_rl_type rl_type, u32 bw, u8 layer_num)
 {
-	struct ice_aqc_rl_profile_generic_elem *buf;
 	struct ice_aqc_rl_profile_info *rl_prof_elem;
 	u16 profiles_added = 0, num_profiles = 1;
+	struct ice_aqc_rl_profile_elem *buf;
 	enum ice_status status;
 	struct ice_hw *hw;
 	u8 profile_type;
@@ -2182,8 +2176,7 @@ ice_sched_add_rl_profile(struct ice_port_info *pi,
 	rl_prof_elem->profile.max_burst_size = cpu_to_le16(hw->max_burst_size);
 
 	/* Create new entry in HW DB */
-	buf = (struct ice_aqc_rl_profile_generic_elem *)
-		&rl_prof_elem->profile;
+	buf = &rl_prof_elem->profile;
 	status = ice_aq_add_rl_profile(hw, num_profiles, buf, sizeof(*buf),
 				       &profiles_added, NULL);
 	if (status || profiles_added != num_profiles)

drivers/net/ethernet/intel/ice/ice_sched.h

@@ -56,7 +56,7 @@ struct ice_sched_agg_info {
 /* FW AQ command calls */
 enum ice_status
 ice_aq_query_sched_elems(struct ice_hw *hw, u16 elems_req,
-			 struct ice_aqc_get_elem *buf, u16 buf_size,
+			 struct ice_aqc_txsched_elem_data *buf, u16 buf_size,
 			 u16 *elems_ret, struct ice_sq_cd *cd);
 enum ice_status ice_sched_init_port(struct ice_port_info *pi);
 enum ice_status ice_sched_query_res_alloc(struct ice_hw *hw);

drivers/net/ethernet/intel/ice/ice_switch.c

@@ -29,25 +29,17 @@ static const u8 dummy_eth_header[DUMMY_ETH_HDR_LEN] = { 0x2, 0, 0, 0, 0, 0,
 							0x81, 0, 0, 0};
 
 #define ICE_SW_RULE_RX_TX_ETH_HDR_SIZE \
-	(sizeof(struct ice_aqc_sw_rules_elem) - \
-	 sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
-	 sizeof(struct ice_sw_rule_lkup_rx_tx) + DUMMY_ETH_HDR_LEN - 1)
+	(offsetof(struct ice_aqc_sw_rules_elem, pdata.lkup_tx_rx.hdr) + \
+	 (DUMMY_ETH_HDR_LEN * \
+	  sizeof(((struct ice_sw_rule_lkup_rx_tx *)0)->hdr[0])))
 #define ICE_SW_RULE_RX_TX_NO_HDR_SIZE \
-	(sizeof(struct ice_aqc_sw_rules_elem) - \
-	 sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
-	 sizeof(struct ice_sw_rule_lkup_rx_tx) - 1)
+	(offsetof(struct ice_aqc_sw_rules_elem, pdata.lkup_tx_rx.hdr))
 #define ICE_SW_RULE_LG_ACT_SIZE(n) \
-	(sizeof(struct ice_aqc_sw_rules_elem) - \
-	 sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
-	 sizeof(struct ice_sw_rule_lg_act) - \
-	 sizeof(((struct ice_sw_rule_lg_act *)0)->act) + \
-	 ((n) * sizeof(((struct ice_sw_rule_lg_act *)0)->act)))
+	(offsetof(struct ice_aqc_sw_rules_elem, pdata.lg_act.act) + \
+	 ((n) * sizeof(((struct ice_sw_rule_lg_act *)0)->act[0])))
 #define ICE_SW_RULE_VSI_LIST_SIZE(n) \
-	(sizeof(struct ice_aqc_sw_rules_elem) - \
-	 sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
-	 sizeof(struct ice_sw_rule_vsi_list) - \
-	 sizeof(((struct ice_sw_rule_vsi_list *)0)->vsi) + \
-	 ((n) * sizeof(((struct ice_sw_rule_vsi_list *)0)->vsi)))
+	(offsetof(struct ice_aqc_sw_rules_elem, pdata.vsi_list.vsi) + \
+	 ((n) * sizeof(((struct ice_sw_rule_vsi_list *)0)->vsi[0])))
 
 /**
  * ice_init_def_sw_recp - initialize the recipe book keeping tables
@@ -87,7 +79,7 @@ enum ice_status ice_init_def_sw_recp(struct ice_hw *hw)
  * @num_elems: pointer to number of elements
  * @cd: pointer to command details structure or NULL
  *
- * Get switch configuration (0x0200) to be placed in 'buff'.
+ * Get switch configuration (0x0200) to be placed in buf.
  * This admin command returns information such as initial VSI/port number
  * and switch ID it belongs to.
  *
@@ -104,13 +96,13 @@ enum ice_status ice_init_def_sw_recp(struct ice_hw *hw)
  * parsing the response buffer.
  */
 static enum ice_status
-ice_aq_get_sw_cfg(struct ice_hw *hw, struct ice_aqc_get_sw_cfg_resp *buf,
+ice_aq_get_sw_cfg(struct ice_hw *hw, struct ice_aqc_get_sw_cfg_resp_elem *buf,
 		  u16 buf_size, u16 *req_desc, u16 *num_elems,
 		  struct ice_sq_cd *cd)
 {
 	struct ice_aqc_get_sw_cfg *cmd;
-	enum ice_status status;
 	struct ice_aq_desc desc;
+	enum ice_status status;
 
 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_sw_cfg);
 	cmd = &desc.params.get_sw_conf;
@@ -449,7 +441,7 @@ ice_aq_alloc_free_vsi_list(struct ice_hw *hw, u16 *vsi_list_id,
 	enum ice_status status;
 	u16 buf_len;
 
-	buf_len = sizeof(*sw_buf);
+	buf_len = struct_size(sw_buf, elem, 1);
 	sw_buf = devm_kzalloc(ice_hw_to_dev(hw), buf_len, GFP_KERNEL);
 	if (!sw_buf)
 		return ICE_ERR_NO_MEMORY;
@@ -550,7 +542,7 @@ ice_init_port_info(struct ice_port_info *pi, u16 vsi_port_num, u8 type,
  */
 enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw)
 {
-	struct ice_aqc_get_sw_cfg_resp *rbuf;
+	struct ice_aqc_get_sw_cfg_resp_elem *rbuf;
 	enum ice_status status;
 	u16 req_desc = 0;
 	u16 num_elems;
@@ -568,19 +560,19 @@ enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw)
 	 * writing a non-zero value in req_desc
 	 */
 	do {
+		struct ice_aqc_get_sw_cfg_resp_elem *ele;
+
 		status = ice_aq_get_sw_cfg(hw, rbuf, ICE_SW_CFG_MAX_BUF_LEN,
 					   &req_desc, &num_elems, NULL);
 
 		if (status)
 			break;
 
-		for (i = 0; i < num_elems; i++) {
-			struct ice_aqc_get_sw_cfg_resp_elem *ele;
+		for (i = 0, ele = rbuf; i < num_elems; i++, ele++) {
 			u16 pf_vf_num, swid, vsi_port_num;
 			bool is_vf = false;
 			u8 res_type;
 
-			ele = rbuf[i].elements;
 			vsi_port_num = le16_to_cpu(ele->vsi_port_num) &
 				ICE_AQC_GET_SW_CONF_RESP_VSI_PORT_NUM_M;
 
@@ -856,8 +848,7 @@ ice_add_marker_act(struct ice_hw *hw, struct ice_fltr_mgmt_list_entry *m_ent,
 		m_ent->fltr_info.fwd_id.hw_vsi_id;
 
 	act = ICE_LG_ACT_VSI_FORWARDING | ICE_LG_ACT_VALID_BIT;
-	act |= (id << ICE_LG_ACT_VSI_LIST_ID_S) &
-		ICE_LG_ACT_VSI_LIST_ID_M;
+	act |= (id << ICE_LG_ACT_VSI_LIST_ID_S) & ICE_LG_ACT_VSI_LIST_ID_M;
 	if (m_ent->vsi_count > 1)
 		act |= ICE_LG_ACT_VSI_LIST;
 	lg_act->pdata.lg_act.act[0] = cpu_to_le32(act);
@@ -2038,6 +2029,7 @@ ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_handle, bool set, u8 direction)
 
 	s_rule_size = set ? ICE_SW_RULE_RX_TX_ETH_HDR_SIZE :
 		ICE_SW_RULE_RX_TX_NO_HDR_SIZE;
+
 	s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL);
 	if (!s_rule)
 		return ICE_ERR_NO_MEMORY;
@@ -2691,7 +2683,7 @@ ice_alloc_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items,
 	u16 buf_len;
 
 	/* Allocate resource */
-	buf_len = sizeof(*buf);
+	buf_len = struct_size(buf, elem, 1);
 	buf = kzalloc(buf_len, GFP_KERNEL);
 	if (!buf)
 		return ICE_ERR_NO_MEMORY;
@@ -2729,7 +2721,7 @@ ice_free_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items,
 	u16 buf_len;
 
 	/* Free resource */
-	buf_len = sizeof(*buf);
+	buf_len = struct_size(buf, elem, 1);
 	buf = kzalloc(buf_len, GFP_KERNEL);
 	if (!buf)
 		return ICE_ERR_NO_MEMORY;

drivers/net/ethernet/intel/ice/ice_xsk.c

@@ -206,12 +206,14 @@ static int ice_qp_ena(struct ice_vsi *vsi, u16 q_idx)
 	struct ice_aqc_add_tx_qgrp *qg_buf;
 	struct ice_ring *tx_ring, *rx_ring;
 	struct ice_q_vector *q_vector;
+	u16 size;
 	int err;
 
 	if (q_idx >= vsi->num_rxq || q_idx >= vsi->num_txq)
 		return -EINVAL;
 
-	qg_buf = kzalloc(sizeof(*qg_buf), GFP_KERNEL);
+	size = struct_size(qg_buf, txqs, 1);
+	qg_buf = kzalloc(size, GFP_KERNEL);
 	if (!qg_buf)
 		return -ENOMEM;
 
@@ -228,7 +230,7 @@ static int ice_qp_ena(struct ice_vsi *vsi, u16 q_idx)
 	if (ice_is_xdp_ena_vsi(vsi)) {
 		struct ice_ring *xdp_ring = vsi->xdp_rings[q_idx];
 
-		memset(qg_buf, 0, sizeof(*qg_buf));
+		memset(qg_buf, 0, size);
 		qg_buf->num_txqs = 1;
 		err = ice_vsi_cfg_txq(vsi, xdp_ring, qg_buf);
 		if (err)