[PATCH net-next 0/4][pull request] Intel Wired LAN Driver Updates 2024-04-11 (ice)

[PATCH net-next 0/4][pull request] Intel Wired LAN Driver Updates 2024-04-11 (ice)

[Tony Nguyen]

This series contains updates to ice driver only.

Lukasz removes unnecessary argument from ice_fdir_comp_rules().

Jakub adds support for ethtool 'ether' flow-type rules.

Jake moves setting of VF MSI-X value to initialization function and adds
tracking of VF relative MSI-X index.

The following are changes since commit 0e36c21d7640ddbfa9233c692db905e0848c6f44:
  Merge branch mana-ib-flex of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git
and are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue 100GbE

Jacob Keller (2):
  ice: set vf->num_msix in ice_initialize_vf_entry()
  ice: store VF relative MSI-X index in q_vector->vf_reg_idx

Jakub Buchocki (1):
  ice: Implement 'flow-type ether' rules

Lukasz Plachno (1):
  ice: Remove unnecessary argument from ice_fdir_comp_rules()

 drivers/net/ethernet/intel/ice/ice.h          |   3 +-
 drivers/net/ethernet/intel/ice/ice_base.c     |   3 +-
 .../net/ethernet/intel/ice/ice_ethtool_fdir.c | 138 +++++++++++++++++-
 drivers/net/ethernet/intel/ice/ice_fdir.c     | 111 ++++++++------
 drivers/net/ethernet/intel/ice/ice_fdir.h     |   5 +
 drivers/net/ethernet/intel/ice/ice_sriov.c    |  12 +-
 drivers/net/ethernet/intel/ice/ice_sriov.h    |   5 +-
 drivers/net/ethernet/intel/ice/ice_type.h     |   1 +
 drivers/net/ethernet/intel/ice/ice_vf_lib.c   |   5 +-
 drivers/net/ethernet/intel/ice/ice_virtchnl.c |  14 +-
 10 files changed, 229 insertions(+), 68 deletions(-)

-- 
2.41.0

[PATCH net-next 1/4] ice: Remove unnecessary argument from ice_fdir_comp_rules()

[Tony Nguyen]

From: Lukasz Plachno <lukasz.plachno@intel.com>

Passing v6 argument is unnecessary as flow_type is still
analyzed inside the function.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Lukasz Plachno <lukasz.plachno@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_fdir.c | 85 +++++++++++------------
 1 file changed, 39 insertions(+), 46 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_fdir.c b/drivers/net/ethernet/intel/ice/ice_fdir.c
index 5840c3e04a5b..1f7b26f38818 100644
--- a/drivers/net/ethernet/intel/ice/ice_fdir.c
+++ b/drivers/net/ethernet/intel/ice/ice_fdir.c
@@ -1189,52 +1189,54 @@ static int ice_cmp_ipv6_addr(__be32 *a, __be32 *b)
  * ice_fdir_comp_rules - compare 2 filters
  * @a: a Flow Director filter data structure
  * @b: a Flow Director filter data structure
- * @v6: bool true if v6 filter
  *
  * Returns true if the filters match
  */
 static bool
-ice_fdir_comp_rules(struct ice_fdir_fltr *a,  struct ice_fdir_fltr *b, bool v6)
+ice_fdir_comp_rules(struct ice_fdir_fltr *a,  struct ice_fdir_fltr *b)
 {
 	enum ice_fltr_ptype flow_type = a->flow_type;
 
 	/* The calling function already checks that the two filters have the
 	 * same flow_type.
 	 */
-	if (!v6) {
-		if (flow_type == ICE_FLTR_PTYPE_NONF_IPV4_TCP ||
-		    flow_type == ICE_FLTR_PTYPE_NONF_IPV4_UDP ||
-		    flow_type == ICE_FLTR_PTYPE_NONF_IPV4_SCTP) {
-			if (a->ip.v4.dst_ip == b->ip.v4.dst_ip &&
-			    a->ip.v4.src_ip == b->ip.v4.src_ip &&
-			    a->ip.v4.dst_port == b->ip.v4.dst_port &&
-			    a->ip.v4.src_port == b->ip.v4.src_port)
-				return true;
-		} else if (flow_type == ICE_FLTR_PTYPE_NONF_IPV4_OTHER) {
-			if (a->ip.v4.dst_ip == b->ip.v4.dst_ip &&
-			    a->ip.v4.src_ip == b->ip.v4.src_ip &&
-			    a->ip.v4.l4_header == b->ip.v4.l4_header &&
-			    a->ip.v4.proto == b->ip.v4.proto &&
-			    a->ip.v4.ip_ver == b->ip.v4.ip_ver &&
-			    a->ip.v4.tos == b->ip.v4.tos)
-				return true;
-		}
-	} else {
-		if (flow_type == ICE_FLTR_PTYPE_NONF_IPV6_UDP ||
-		    flow_type == ICE_FLTR_PTYPE_NONF_IPV6_TCP ||
-		    flow_type == ICE_FLTR_PTYPE_NONF_IPV6_SCTP) {
-			if (a->ip.v6.dst_port == b->ip.v6.dst_port &&
-			    a->ip.v6.src_port == b->ip.v6.src_port &&
-			    !ice_cmp_ipv6_addr(a->ip.v6.dst_ip,
-					       b->ip.v6.dst_ip) &&
-			    !ice_cmp_ipv6_addr(a->ip.v6.src_ip,
-					       b->ip.v6.src_ip))
-				return true;
-		} else if (flow_type == ICE_FLTR_PTYPE_NONF_IPV6_OTHER) {
-			if (a->ip.v6.dst_port == b->ip.v6.dst_port &&
-			    a->ip.v6.src_port == b->ip.v6.src_port)
-				return true;
-		}
+	switch (flow_type) {
+	case ICE_FLTR_PTYPE_NONF_IPV4_TCP:
+	case ICE_FLTR_PTYPE_NONF_IPV4_UDP:
+	case ICE_FLTR_PTYPE_NONF_IPV4_SCTP:
+		if (a->ip.v4.dst_ip == b->ip.v4.dst_ip &&
+		    a->ip.v4.src_ip == b->ip.v4.src_ip &&
+		    a->ip.v4.dst_port == b->ip.v4.dst_port &&
+		    a->ip.v4.src_port == b->ip.v4.src_port)
+			return true;
+		break;
+	case ICE_FLTR_PTYPE_NONF_IPV4_OTHER:
+		if (a->ip.v4.dst_ip == b->ip.v4.dst_ip &&
+		    a->ip.v4.src_ip == b->ip.v4.src_ip &&
+		    a->ip.v4.l4_header == b->ip.v4.l4_header &&
+		    a->ip.v4.proto == b->ip.v4.proto &&
+		    a->ip.v4.ip_ver == b->ip.v4.ip_ver &&
+		    a->ip.v4.tos == b->ip.v4.tos)
+			return true;
+		break;
+	case ICE_FLTR_PTYPE_NONF_IPV6_UDP:
+	case ICE_FLTR_PTYPE_NONF_IPV6_TCP:
+	case ICE_FLTR_PTYPE_NONF_IPV6_SCTP:
+		if (a->ip.v6.dst_port == b->ip.v6.dst_port &&
+		    a->ip.v6.src_port == b->ip.v6.src_port &&
+		    !ice_cmp_ipv6_addr(a->ip.v6.dst_ip,
+				       b->ip.v6.dst_ip) &&
+		    !ice_cmp_ipv6_addr(a->ip.v6.src_ip,
+				       b->ip.v6.src_ip))
+			return true;
+		break;
+	case ICE_FLTR_PTYPE_NONF_IPV6_OTHER:
+		if (a->ip.v6.dst_port == b->ip.v6.dst_port &&
+		    a->ip.v6.src_port == b->ip.v6.src_port)
+			return true;
+		break;
+	default:
+		break;
 	}
 
 	return false;
@@ -1253,19 +1255,10 @@ bool ice_fdir_is_dup_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input)
 	bool ret = false;
 
 	list_for_each_entry(rule, &hw->fdir_list_head, fltr_node) {
-		enum ice_fltr_ptype flow_type;
-
 		if (rule->flow_type != input->flow_type)
 			continue;
 
-		flow_type = input->flow_type;
-		if (flow_type == ICE_FLTR_PTYPE_NONF_IPV4_TCP ||
-		    flow_type == ICE_FLTR_PTYPE_NONF_IPV4_UDP ||
-		    flow_type == ICE_FLTR_PTYPE_NONF_IPV4_SCTP ||
-		    flow_type == ICE_FLTR_PTYPE_NONF_IPV4_OTHER)
-			ret = ice_fdir_comp_rules(rule, input, false);
-		else
-			ret = ice_fdir_comp_rules(rule, input, true);
+		ret = ice_fdir_comp_rules(rule, input);
 		if (ret) {
 			if (rule->fltr_id == input->fltr_id &&
 			    rule->q_index != input->q_index)
-- 
2.41.0

[PATCH net-next 2/4] ice: Implement 'flow-type ether' rules

[Tony Nguyen]

From: Jakub Buchocki <jakubx.buchocki@intel.com>

Add support for 'flow-type ether' Flow Director rules via ethtool.

Create packet segment info for filter configuration based on ethtool
command parameters. Reuse infrastructure already created for
ipv4 and ipv6 flows to convert packet segment into
extraction sequence, which is later used to program the filter
inside Flow Director block of the Rx pipeline.

Rules not containing masks are processed by the Flow Director,
and support the following set of input parameters in all combinations:
src, dst, proto, vlan-etype, vlan, action.

It is possible to specify address mask in ethtool parameters but only
00:00:00:00:00 and FF:FF:FF:FF:FF are valid.
The same applies to proto, vlan-etype and vlan masks:
only 0x0000 and 0xffff masks are valid.

Testing:
  (DUT) iperf3 -s
  (DUT) ethtool -U ens785f0np0 flow-type ether dst <ens785f0np0 mac> \
        action 10
  (DUT) watch 'ethtool -S ens785f0np0 | grep rx_queue'
  (LP)  iperf3 -c ${DUT_IP}

  Counters increase only for:
    'rx_queue_10_packets'
    'rx_queue_10_bytes'

Signed-off-by: Jakub Buchocki <jakubx.buchocki@intel.com>
Co-developed-by: Mateusz Pacuszka <mateuszx.pacuszka@intel.com>
Signed-off-by: Mateusz Pacuszka <mateuszx.pacuszka@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Lukasz Plachno <lukasz.plachno@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 .../net/ethernet/intel/ice/ice_ethtool_fdir.c | 138 +++++++++++++++++-
 drivers/net/ethernet/intel/ice/ice_fdir.c     |  26 ++++
 drivers/net/ethernet/intel/ice/ice_fdir.h     |   5 +
 drivers/net/ethernet/intel/ice/ice_type.h     |   1 +
 4 files changed, 169 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
index 9a1a04f5f146..ab3121aee412 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
@@ -41,6 +41,8 @@ static struct in6_addr zero_ipv6_addr_mask = {
 static int ice_fltr_to_ethtool_flow(enum ice_fltr_ptype flow)
 {
 	switch (flow) {
+	case ICE_FLTR_PTYPE_NONF_ETH:
+		return ETHER_FLOW;
 	case ICE_FLTR_PTYPE_NONF_IPV4_TCP:
 		return TCP_V4_FLOW;
 	case ICE_FLTR_PTYPE_NONF_IPV4_UDP:
@@ -72,6 +74,8 @@ static int ice_fltr_to_ethtool_flow(enum ice_fltr_ptype flow)
 static enum ice_fltr_ptype ice_ethtool_flow_to_fltr(int eth)
 {
 	switch (eth) {
+	case ETHER_FLOW:
+		return ICE_FLTR_PTYPE_NONF_ETH;
 	case TCP_V4_FLOW:
 		return ICE_FLTR_PTYPE_NONF_IPV4_TCP;
 	case UDP_V4_FLOW:
@@ -137,6 +141,10 @@ int ice_get_ethtool_fdir_entry(struct ice_hw *hw, struct ethtool_rxnfc *cmd)
 	memset(&fsp->m_ext, 0, sizeof(fsp->m_ext));
 
 	switch (fsp->flow_type) {
+	case ETHER_FLOW:
+		fsp->h_u.ether_spec = rule->eth;
+		fsp->m_u.ether_spec = rule->eth_mask;
+		break;
 	case IPV4_USER_FLOW:
 		fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
 		fsp->h_u.usr_ip4_spec.proto = 0;
@@ -1193,6 +1201,120 @@ ice_set_fdir_ip6_usr_seg(struct ice_flow_seg_info *seg,
 	return 0;
 }
 
+/**
+ * ice_fdir_vlan_valid - validate VLAN data for Flow Director rule
+ * @dev: network interface device structure
+ * @fsp: pointer to ethtool Rx flow specification
+ *
+ * Return: true if vlan data is valid, false otherwise
+ */
+static bool ice_fdir_vlan_valid(struct device *dev,
+				struct ethtool_rx_flow_spec *fsp)
+{
+	if (fsp->m_ext.vlan_etype && !eth_type_vlan(fsp->h_ext.vlan_etype))
+		return false;
+
+	if (fsp->m_ext.vlan_tci && ntohs(fsp->h_ext.vlan_tci) >= VLAN_N_VID)
+		return false;
+
+	/* proto and vlan must have vlan-etype defined */
+	if (fsp->m_u.ether_spec.h_proto && fsp->m_ext.vlan_tci &&
+	    !fsp->m_ext.vlan_etype) {
+		dev_warn(dev, "Filter with proto and vlan require also vlan-etype");
+		return false;
+	}
+
+	return true;
+}
+
+/**
+ * ice_set_ether_flow_seg
+ * @dev: network interface device structure
+ * @seg: flow segment for programming
+ * @eth_spec: mask data from ethtool
+ *
+ * Return: 0 on success and errno in case of error.
+ */
+static int ice_set_ether_flow_seg(struct device *dev,
+				  struct ice_flow_seg_info *seg,
+				  struct ethhdr *eth_spec)
+{
+	ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_ETH);
+
+	/* empty rules are not valid */
+	if (is_zero_ether_addr(eth_spec->h_source) &&
+	    is_zero_ether_addr(eth_spec->h_dest) &&
+	    !eth_spec->h_proto)
+		return -EINVAL;
+
+	/* Ethertype */
+	if (eth_spec->h_proto == htons(0xFFFF)) {
+		ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_ETH_TYPE,
+				 ICE_FLOW_FLD_OFF_INVAL,
+				 ICE_FLOW_FLD_OFF_INVAL,
+				 ICE_FLOW_FLD_OFF_INVAL, false);
+	} else if (eth_spec->h_proto) {
+		dev_warn(dev, "Only 0x0000 or 0xffff proto mask is allowed for flow-type ether");
+		return -EOPNOTSUPP;
+	}
+
+	/* Source MAC address */
+	if (is_broadcast_ether_addr(eth_spec->h_source))
+		ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_ETH_SA,
+				 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
+				 ICE_FLOW_FLD_OFF_INVAL, false);
+	else if (!is_zero_ether_addr(eth_spec->h_source))
+		goto err_mask;
+
+	/* Destination MAC address */
+	if (is_broadcast_ether_addr(eth_spec->h_dest))
+		ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_ETH_DA,
+				 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
+				 ICE_FLOW_FLD_OFF_INVAL, false);
+	else if (!is_zero_ether_addr(eth_spec->h_dest))
+		goto err_mask;
+
+	return 0;
+
+err_mask:
+	dev_warn(dev, "Only 00:00:00:00:00:00 or ff:ff:ff:ff:ff:ff MAC address mask is allowed for flow-type ether");
+	return -EOPNOTSUPP;
+}
+
+/**
+ * ice_set_fdir_vlan_seg
+ * @seg: flow segment for programming
+ * @ext_masks: masks for additional RX flow fields
+ */
+static int
+ice_set_fdir_vlan_seg(struct ice_flow_seg_info *seg,
+		      struct ethtool_flow_ext *ext_masks)
+{
+	ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_VLAN);
+
+	if (ext_masks->vlan_etype) {
+		if (ext_masks->vlan_etype != htons(0xFFFF))
+			return -EOPNOTSUPP;
+
+		ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_S_VLAN,
+				 ICE_FLOW_FLD_OFF_INVAL,
+				 ICE_FLOW_FLD_OFF_INVAL,
+				 ICE_FLOW_FLD_OFF_INVAL, false);
+	}
+
+	if (ext_masks->vlan_tci) {
+		if (ext_masks->vlan_tci != htons(0xFFFF))
+			return -EOPNOTSUPP;
+
+		ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_C_VLAN,
+				 ICE_FLOW_FLD_OFF_INVAL,
+				 ICE_FLOW_FLD_OFF_INVAL,
+				 ICE_FLOW_FLD_OFF_INVAL, false);
+	}
+
+	return 0;
+}
+
 /**
  * ice_cfg_fdir_xtrct_seq - Configure extraction sequence for the given filter
  * @pf: PF structure
@@ -1209,7 +1331,7 @@ ice_cfg_fdir_xtrct_seq(struct ice_pf *pf, struct ethtool_rx_flow_spec *fsp,
 	struct device *dev = ice_pf_to_dev(pf);
 	enum ice_fltr_ptype fltr_idx;
 	struct ice_hw *hw = &pf->hw;
-	bool perfect_filter;
+	bool perfect_filter = false;
 	int ret;
 
 	seg = devm_kzalloc(dev, sizeof(*seg), GFP_KERNEL);
@@ -1262,6 +1384,16 @@ ice_cfg_fdir_xtrct_seq(struct ice_pf *pf, struct ethtool_rx_flow_spec *fsp,
 		ret = ice_set_fdir_ip6_usr_seg(seg, &fsp->m_u.usr_ip6_spec,
 					       &perfect_filter);
 		break;
+	case ETHER_FLOW:
+		ret = ice_set_ether_flow_seg(dev, seg, &fsp->m_u.ether_spec);
+		if (!ret && (fsp->m_ext.vlan_etype || fsp->m_ext.vlan_tci)) {
+			if (!ice_fdir_vlan_valid(dev, fsp)) {
+				ret = -EINVAL;
+				break;
+			}
+			ret = ice_set_fdir_vlan_seg(seg, &fsp->m_ext);
+		}
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1823,6 +1955,10 @@ ice_set_fdir_input_set(struct ice_vsi *vsi, struct ethtool_rx_flow_spec *fsp,
 		input->mask.v6.tc = fsp->m_u.usr_ip6_spec.tclass;
 		input->mask.v6.proto = fsp->m_u.usr_ip6_spec.l4_proto;
 		break;
+	case ETHER_FLOW:
+		input->eth = fsp->h_u.ether_spec;
+		input->eth_mask = fsp->m_u.ether_spec;
+		break;
 	default:
 		/* not doing un-parsed flow types */
 		return -EINVAL;
diff --git a/drivers/net/ethernet/intel/ice/ice_fdir.c b/drivers/net/ethernet/intel/ice/ice_fdir.c
index 1f7b26f38818..26b357c0ae15 100644
--- a/drivers/net/ethernet/intel/ice/ice_fdir.c
+++ b/drivers/net/ethernet/intel/ice/ice_fdir.c
@@ -4,6 +4,8 @@
 #include "ice_common.h"
 
 /* These are training packet headers used to program flow director filters. */
+static const u8 ice_fdir_eth_pkt[22];
+
 static const u8 ice_fdir_tcpv4_pkt[] = {
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 	0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x45, 0x00,
@@ -416,6 +418,11 @@ static const u8 ice_fdir_ip6_tun_pkt[] = {
 
 /* Flow Director no-op training packet table */
 static const struct ice_fdir_base_pkt ice_fdir_pkt[] = {
+	{
+		ICE_FLTR_PTYPE_NONF_ETH,
+		sizeof(ice_fdir_eth_pkt), ice_fdir_eth_pkt,
+		sizeof(ice_fdir_eth_pkt), ice_fdir_eth_pkt,
+	},
 	{
 		ICE_FLTR_PTYPE_NONF_IPV4_TCP,
 		sizeof(ice_fdir_tcpv4_pkt), ice_fdir_tcpv4_pkt,
@@ -914,6 +921,21 @@ ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input,
 	 * perspective. The input from user is from Rx filter perspective.
 	 */
 	switch (flow) {
+	case ICE_FLTR_PTYPE_NONF_ETH:
+		ice_pkt_insert_mac_addr(loc, input->eth.h_dest);
+		ice_pkt_insert_mac_addr(loc + ETH_ALEN, input->eth.h_source);
+		if (input->ext_data.vlan_tag || input->ext_data.vlan_type) {
+			ice_pkt_insert_u16(loc, ICE_ETH_TYPE_F_OFFSET,
+					   input->ext_data.vlan_type);
+			ice_pkt_insert_u16(loc, ICE_ETH_VLAN_TCI_OFFSET,
+					   input->ext_data.vlan_tag);
+			ice_pkt_insert_u16(loc, ICE_ETH_TYPE_VLAN_OFFSET,
+					   input->eth.h_proto);
+		} else {
+			ice_pkt_insert_u16(loc, ICE_ETH_TYPE_F_OFFSET,
+					   input->eth.h_proto);
+		}
+		break;
 	case ICE_FLTR_PTYPE_NONF_IPV4_TCP:
 		ice_pkt_insert_u32(loc, ICE_IPV4_DST_ADDR_OFFSET,
 				   input->ip.v4.src_ip);
@@ -1201,6 +1223,10 @@ ice_fdir_comp_rules(struct ice_fdir_fltr *a,  struct ice_fdir_fltr *b)
 	 * same flow_type.
 	 */
 	switch (flow_type) {
+	case ICE_FLTR_PTYPE_NONF_ETH:
+		if (!memcmp(&a->eth, &b->eth, sizeof(a->eth)))
+			return true;
+		break;
 	case ICE_FLTR_PTYPE_NONF_IPV4_TCP:
 	case ICE_FLTR_PTYPE_NONF_IPV4_UDP:
 	case ICE_FLTR_PTYPE_NONF_IPV4_SCTP:
diff --git a/drivers/net/ethernet/intel/ice/ice_fdir.h b/drivers/net/ethernet/intel/ice/ice_fdir.h
index 1b9b84490689..021ecbac7848 100644
--- a/drivers/net/ethernet/intel/ice/ice_fdir.h
+++ b/drivers/net/ethernet/intel/ice/ice_fdir.h
@@ -8,6 +8,9 @@
 #define ICE_FDIR_MAX_RAW_PKT_SIZE	(512 + ICE_FDIR_TUN_PKT_OFF)
 
 /* macros for offsets into packets for flow director programming */
+#define ICE_ETH_TYPE_F_OFFSET		12
+#define ICE_ETH_VLAN_TCI_OFFSET		14
+#define ICE_ETH_TYPE_VLAN_OFFSET	16
 #define ICE_IPV4_SRC_ADDR_OFFSET	26
 #define ICE_IPV4_DST_ADDR_OFFSET	30
 #define ICE_IPV4_TCP_SRC_PORT_OFFSET	34
@@ -159,6 +162,8 @@ struct ice_fdir_fltr {
 	struct list_head fltr_node;
 	enum ice_fltr_ptype flow_type;
 
+	struct ethhdr eth, eth_mask;
+
 	union {
 		struct ice_fdir_v4 v4;
 		struct ice_fdir_v6 v6;
diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h
index 08ec5efdafe6..4049ae40c4fb 100644
--- a/drivers/net/ethernet/intel/ice/ice_type.h
+++ b/drivers/net/ethernet/intel/ice/ice_type.h
@@ -203,6 +203,7 @@ struct ice_phy_info {
 enum ice_fltr_ptype {
 	/* NONE - used for undef/error */
 	ICE_FLTR_PTYPE_NONF_NONE = 0,
+	ICE_FLTR_PTYPE_NONF_ETH,
 	ICE_FLTR_PTYPE_NONF_IPV4_UDP,
 	ICE_FLTR_PTYPE_NONF_IPV4_TCP,
 	ICE_FLTR_PTYPE_NONF_IPV4_SCTP,
-- 
2.41.0

Re: [PATCH net-next 2/4] ice: Implement 'flow-type ether' rules

[Jakub Kicinski]

On Thu, 11 Apr 2024 10:38:42 -0700 Tony Nguyen wrote:
> +/**
> + * ice_set_fdir_vlan_seg
> + * @seg: flow segment for programming
> + * @ext_masks: masks for additional RX flow fields
> + */

kerne-doc is not on board (note that we started using the -Wall flag
when running the script):

drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c:1285: warning: missing initial short description on line:
 * ice_set_fdir_vlan_seg
drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c:1292: warning: No description found for return value of 'ice_set_fdir_vlan_seg'

Re: [PATCH net-next 2/4] ice: Implement 'flow-type ether' rules

[Plachno, Lukasz]

On 4/12/2024 5:06 AM, Jakub Kicinski wrote:
> On Thu, 11 Apr 2024 10:38:42 -0700 Tony Nguyen wrote:
>> +/**
>> + * ice_set_fdir_vlan_seg
>> + * @seg: flow segment for programming
>> + * @ext_masks: masks for additional RX flow fields
>> + */
> 
> kerne-doc is not on board (note that we started using the -Wall flag
> when running the script):
> 
> drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c:1285: warning: missing initial short description on line:
>   * ice_set_fdir_vlan_seg
> drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c:1292: warning: No description found for return value of 'ice_set_fdir_vlan_seg'

Tony,

Change below fixes the kernel-doc warnings in case it is okay to amend 
the commit in your tree.
If you prefer I will send V9 with fixed comments to list.

Thanks,
Łukasz

---
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c 
b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
index ab3121aee412..e3cab8e98f52 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
@@ -1228,7 +1228,7 @@ static bool ice_fdir_vlan_valid(struct device *dev,
  }

  /**
- * ice_set_ether_flow_seg
+ * ice_set_ether_flow_seg - set address and protocol segments for ether 
flow
   * @dev: network interface device structure
   * @seg: flow segment for programming
   * @eth_spec: mask data from ethtool
@@ -1282,9 +1282,11 @@ static int ice_set_ether_flow_seg(struct device *dev,
  }

  /**
- * ice_set_fdir_vlan_seg
+ * ice_set_fdir_vlan_seg - set vlan segments for ether flow
   * @seg: flow segment for programming
   * @ext_masks: masks for additional RX flow fields
+ *
+ * Return: 0 on success and errno in case of error.
   */
  static int
  ice_set_fdir_vlan_seg(struct ice_flow_seg_info *seg,
--
2.34.1

Re: [PATCH net-next 2/4] ice: Implement 'flow-type ether' rules

[Tony Nguyen]

On 4/12/2024 2:41 AM, Plachno, Lukasz wrote:
> On 4/12/2024 5:06 AM, Jakub Kicinski wrote:
>> On Thu, 11 Apr 2024 10:38:42 -0700 Tony Nguyen wrote:
>>> +/**
>>> + * ice_set_fdir_vlan_seg
>>> + * @seg: flow segment for programming
>>> + * @ext_masks: masks for additional RX flow fields
>>> + */
>>
>> kerne-doc is not on board (note that we started using the -Wall flag
>> when running the script):

I'll add that in to my checks. Thanks!

>> drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c:1285: warning: 
>> missing initial short description on line:
>>   * ice_set_fdir_vlan_seg
>> drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c:1292: warning: No 
>> description found for return value of 'ice_set_fdir_vlan_seg'
> 
> Tony,
> 
> Change below fixes the kernel-doc warnings in case it is okay to amend 
> the commit in your tree.
> If you prefer I will send V9 with fixed comments to list.

I'll update the patch and re-send.

Thanks,
Tony

> Thanks,
> Łukasz
> 
> ---
> diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c 
> b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
> index ab3121aee412..e3cab8e98f52 100644
> --- a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
> +++ b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
> @@ -1228,7 +1228,7 @@ static bool ice_fdir_vlan_valid(struct device *dev,
>   }
> 
>   /**
> - * ice_set_ether_flow_seg
> + * ice_set_ether_flow_seg - set address and protocol segments for ether 
> flow
>    * @dev: network interface device structure
>    * @seg: flow segment for programming
>    * @eth_spec: mask data from ethtool
> @@ -1282,9 +1282,11 @@ static int ice_set_ether_flow_seg(struct device 
> *dev,
>   }
> 
>   /**
> - * ice_set_fdir_vlan_seg
> + * ice_set_fdir_vlan_seg - set vlan segments for ether flow
>    * @seg: flow segment for programming
>    * @ext_masks: masks for additional RX flow fields
> + *
> + * Return: 0 on success and errno in case of error.
>    */
>   static int
>   ice_set_fdir_vlan_seg(struct ice_flow_seg_info *seg,
> -- 
> 2.34.1

[PATCH net-next 3/4] ice: set vf->num_msix in ice_initialize_vf_entry()

[Tony Nguyen]

From: Jacob Keller <jacob.e.keller@intel.com>

Commit fe1c5ca2fe76 ("ice: implement num_msix field per VF") updated the
driver to allow for per-VF MSI-X configuration. The initial defaults were
set in ice_create_vf_entries(). This logic is better placed in
ice_initialize_vf_entry(). Indeed, that function already sets
vf->num_vf_qs, as well as initializes the allow list via calling
ice_vc_set_default_allowlist().

Move this logic into ice_initialize_vf_entry(). This makes the code clear,
and ensures that these VF fields will be initialized properly for both
SR-IOV VFs and the upcoming Scalable IOV VFs.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_sriov.c  | 5 -----
 drivers/net/ethernet/intel/ice/ice_vf_lib.c | 5 ++++-
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_sriov.c b/drivers/net/ethernet/intel/ice/ice_sriov.c
index 65e1986af777..5e9521876617 100644
--- a/drivers/net/ethernet/intel/ice/ice_sriov.c
+++ b/drivers/net/ethernet/intel/ice/ice_sriov.c
@@ -831,11 +831,6 @@ static int ice_create_vf_entries(struct ice_pf *pf, u16 num_vfs)
 
 		pci_dev_get(vfdev);
 
-		/* set default number of MSI-X */
-		vf->num_msix = pf->vfs.num_msix_per;
-		vf->num_vf_qs = pf->vfs.num_qps_per;
-		ice_vc_set_default_allowlist(vf);
-
 		hash_add_rcu(vfs->table, &vf->entry, vf_id);
 	}
 
diff --git a/drivers/net/ethernet/intel/ice/ice_vf_lib.c b/drivers/net/ethernet/intel/ice/ice_vf_lib.c
index 21d26e19338a..c51e2482cad2 100644
--- a/drivers/net/ethernet/intel/ice/ice_vf_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_vf_lib.c
@@ -992,10 +992,13 @@ void ice_initialize_vf_entry(struct ice_vf *vf)
 
 	/* assign default capabilities */
 	vf->spoofchk = true;
-	vf->num_vf_qs = vfs->num_qps_per;
 	ice_vc_set_default_allowlist(vf);
 	ice_virtchnl_set_dflt_ops(vf);
 
+	/* set default number of MSI-X */
+	vf->num_msix = vfs->num_msix_per;
+	vf->num_vf_qs = vfs->num_qps_per;
+
 	/* ctrl_vsi_idx will be set to a valid value only when iAVF
 	 * creates its first fdir rule.
 	 */
-- 
2.41.0

[PATCH net-next 4/4] ice: store VF relative MSI-X index in q_vector->vf_reg_idx

[Tony Nguyen]

From: Jacob Keller <jacob.e.keller@intel.com>

The ice physical function driver needs to configure the association of
queues and interrupts on behalf of its virtual functions. This is done over
virtchnl by the VF sending messages during its initialization phase. These
messages contain a vector_id which the VF wants to associate with a given
queue. This ID is relative to the VF space, where 0 indicates the control
IRQ for non-queue interrupts.

When programming the mapping, the PF driver currently passes this vector_id
directly to the low level functions for programming. This works for SR-IOV,
because the hardware uses the VF-based indexing for interrupts.

This won't work for Scalable IOV, which uses PF-based indexing for
programming its VSIs. To handle this, the driver needs to be able to look
up the proper index to use for programming. For typical IRQs, this would be
the q_vector->reg_idx field.

The q_vector->reg_idx can't be set to a VF relative value, because it is
used when the PF needs to control the interrupt, such as when triggering a
software interrupt on stopping the Tx queue. Thus, introduce a new
q_vector->vf_reg_idx which can store the VF relative index for registers
which expect this.

Use this in ice_cfg_interrupt to look up the VF index from the q_vector.
This allows removing the vector ID parameter of ice_cfg_interrupt. Also
notice that this function returns an int, but then is cast to the virtchnl
error enumeration, virtchnl_status_code. Update the return type to indicate
it does not return an integer error code. We can't use normal error codes
here because the return values are passed across the virtchnl interface.

This will allow the future Scalable IOV VFs to correctly look up the index
needed for programming the VF queues without breaking SR-IOV.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/ice/ice.h          |  3 ++-
 drivers/net/ethernet/intel/ice/ice_base.c     |  3 ++-
 drivers/net/ethernet/intel/ice/ice_sriov.c    |  7 ++++---
 drivers/net/ethernet/intel/ice/ice_sriov.h    |  5 ++---
 drivers/net/ethernet/intel/ice/ice_virtchnl.c | 14 +++++++-------
 5 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index a7e88d797d4c..67a3236ab1fc 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -459,7 +459,7 @@ struct ice_q_vector {
 	struct ice_vsi *vsi;
 
 	u16 v_idx;			/* index in the vsi->q_vector array. */
-	u16 reg_idx;
+	u16 reg_idx;			/* PF relative register index */
 	u8 num_ring_rx;			/* total number of Rx rings in vector */
 	u8 num_ring_tx;			/* total number of Tx rings in vector */
 	u8 wb_on_itr:1;			/* if true, WB on ITR is enabled */
@@ -481,6 +481,7 @@ struct ice_q_vector {
 	char name[ICE_INT_NAME_STR_LEN];
 
 	u16 total_events;	/* net_dim(): number of interrupts processed */
+	u16 vf_reg_idx;		/* VF relative register index */
 	struct msi_map irq;
 } ____cacheline_internodealigned_in_smp;
 
diff --git a/drivers/net/ethernet/intel/ice/ice_base.c b/drivers/net/ethernet/intel/ice/ice_base.c
index af0384b37119..687f6cb2b917 100644
--- a/drivers/net/ethernet/intel/ice/ice_base.c
+++ b/drivers/net/ethernet/intel/ice/ice_base.c
@@ -121,7 +121,7 @@ static int ice_vsi_alloc_q_vector(struct ice_vsi *vsi, u16 v_idx)
 	q_vector->irq.index = -ENOENT;
 
 	if (vsi->type == ICE_VSI_VF) {
-		q_vector->reg_idx = ice_calc_vf_reg_idx(vsi->vf, q_vector);
+		ice_calc_vf_reg_idx(vsi->vf, q_vector);
 		goto out;
 	} else if (vsi->type == ICE_VSI_CTRL && vsi->vf) {
 		struct ice_vsi *ctrl_vsi = ice_get_vf_ctrl_vsi(pf, vsi);
@@ -145,6 +145,7 @@ static int ice_vsi_alloc_q_vector(struct ice_vsi *vsi, u16 v_idx)
 
 skip_alloc:
 	q_vector->reg_idx = q_vector->irq.index;
+	q_vector->vf_reg_idx = q_vector->irq.index;
 
 	/* only set affinity_mask if the CPU is online */
 	if (cpu_online(v_idx))
diff --git a/drivers/net/ethernet/intel/ice/ice_sriov.c b/drivers/net/ethernet/intel/ice/ice_sriov.c
index 5e9521876617..fb2e96db647e 100644
--- a/drivers/net/ethernet/intel/ice/ice_sriov.c
+++ b/drivers/net/ethernet/intel/ice/ice_sriov.c
@@ -360,13 +360,14 @@ static void ice_ena_vf_mappings(struct ice_vf *vf)
  * @vf: VF to calculate the register index for
  * @q_vector: a q_vector associated to the VF
  */
-int ice_calc_vf_reg_idx(struct ice_vf *vf, struct ice_q_vector *q_vector)
+void ice_calc_vf_reg_idx(struct ice_vf *vf, struct ice_q_vector *q_vector)
 {
 	if (!vf || !q_vector)
-		return -EINVAL;
+		return;
 
 	/* always add one to account for the OICR being the first MSIX */
-	return vf->first_vector_idx + q_vector->v_idx + 1;
+	q_vector->vf_reg_idx = q_vector->v_idx + ICE_NONQ_VECS_VF;
+	q_vector->reg_idx = vf->first_vector_idx + q_vector->vf_reg_idx;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/ice/ice_sriov.h b/drivers/net/ethernet/intel/ice/ice_sriov.h
index 8488df38b586..4ba8fb53aea1 100644
--- a/drivers/net/ethernet/intel/ice/ice_sriov.h
+++ b/drivers/net/ethernet/intel/ice/ice_sriov.h
@@ -49,7 +49,7 @@ int ice_set_vf_link_state(struct net_device *netdev, int vf_id, int link_state);
 
 int ice_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool ena);
 
-int ice_calc_vf_reg_idx(struct ice_vf *vf, struct ice_q_vector *q_vector);
+void ice_calc_vf_reg_idx(struct ice_vf *vf, struct ice_q_vector *q_vector);
 
 int
 ice_get_vf_stats(struct net_device *netdev, int vf_id,
@@ -130,11 +130,10 @@ ice_set_vf_bw(struct net_device __always_unused *netdev,
 	return -EOPNOTSUPP;
 }
 
-static inline int
+static inline void
 ice_calc_vf_reg_idx(struct ice_vf __always_unused *vf,
 		    struct ice_q_vector __always_unused *q_vector)
 {
-	return 0;
 }
 
 static inline int
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
index 1ff9818b4c84..1c6ce0c4ed4e 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
@@ -1505,13 +1505,12 @@ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
  * ice_cfg_interrupt
  * @vf: pointer to the VF info
  * @vsi: the VSI being configured
- * @vector_id: vector ID
  * @map: vector map for mapping vectors to queues
  * @q_vector: structure for interrupt vector
  * configure the IRQ to queue map
  */
-static int
-ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
+static enum virtchnl_status_code
+ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi,
 		  struct virtchnl_vector_map *map,
 		  struct ice_q_vector *q_vector)
 {
@@ -1531,7 +1530,8 @@ ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
 		q_vector->num_ring_rx++;
 		q_vector->rx.itr_idx = map->rxitr_idx;
 		vsi->rx_rings[vsi_q_id]->q_vector = q_vector;
-		ice_cfg_rxq_interrupt(vsi, vsi_q_id, vector_id,
+		ice_cfg_rxq_interrupt(vsi, vsi_q_id,
+				      q_vector->vf_reg_idx,
 				      q_vector->rx.itr_idx);
 	}
 
@@ -1545,7 +1545,8 @@ ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
 		q_vector->num_ring_tx++;
 		q_vector->tx.itr_idx = map->txitr_idx;
 		vsi->tx_rings[vsi_q_id]->q_vector = q_vector;
-		ice_cfg_txq_interrupt(vsi, vsi_q_id, vector_id,
+		ice_cfg_txq_interrupt(vsi, vsi_q_id,
+				      q_vector->vf_reg_idx,
 				      q_vector->tx.itr_idx);
 	}
 
@@ -1619,8 +1620,7 @@ static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
 		}
 
 		/* lookout for the invalid queue index */
-		v_ret = (enum virtchnl_status_code)
-			ice_cfg_interrupt(vf, vsi, vector_id, map, q_vector);
+		v_ret = ice_cfg_interrupt(vf, vsi, map, q_vector);
 		if (v_ret)
 			goto error_param;
 	}
-- 
2.41.0