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

Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2021-04-22

This series contains updates to virtchnl header file, ice, and iavf
drivers.

Vignesh adds support to warn about potentially malicious VFs; those that
are overflowing the mailbox for the ice driver.

Michal adds support for an allowlist/denylist of VF commands based on
supported capabilities for the ice driver.

Brett adds support for iavf UDP segmentation offload by adding the
capability bit to virtchnl, advertising support in the ice driver, and
enabling it in the iavf driver. He also adds a helper function for
getting the VF VSI for ice.

Colin Ian King removes an unneeded pointer assignment.

Qi enables support in the ice driver to support virtchnl requests from
the iavf to configure its own RSS input set. This includes adding new
capability bits, structures, and commands to virtchnl header file.

Haiyue enables configuring RSS flow hash via ethtool to support TCP, UDP
and SCTP protocols in iavf.
====================

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

1 files changed, 26 insertions, 1 deletions

diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h
index 40dd6afbfd81..565deea6ffe8 100644
--- a/include/linux/avf/virtchnl.h
+++ b/include/linux/avf/virtchnl.h
@@ -136,9 +136,12 @@ enum virtchnl_ops {
 	VIRTCHNL_OP_DISABLE_CHANNELS = 31,
 	VIRTCHNL_OP_ADD_CLOUD_FILTER = 32,
 	VIRTCHNL_OP_DEL_CLOUD_FILTER = 33,
-	/* opcode 34 - 46 are reserved */
+	/* opcode 34 - 44 are reserved */
+	VIRTCHNL_OP_ADD_RSS_CFG = 45,
+	VIRTCHNL_OP_DEL_RSS_CFG = 46,
 	VIRTCHNL_OP_ADD_FDIR_FILTER = 47,
 	VIRTCHNL_OP_DEL_FDIR_FILTER = 48,
+	VIRTCHNL_OP_MAX,
 };
 
 /* These macros are used to generate compilation errors if a structure/union
@@ -250,6 +253,8 @@ VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vsi_resource);
 #define VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM		0X00200000
 #define VIRTCHNL_VF_OFFLOAD_RX_ENCAP_CSUM	0X00400000
 #define VIRTCHNL_VF_OFFLOAD_ADQ			0X00800000
+#define VIRTCHNL_VF_OFFLOAD_USO			0X02000000
+#define VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF		0X08000000
 #define VIRTCHNL_VF_OFFLOAD_FDIR_PF		0X10000000
 
 /* Define below the capability flags that are not offloads */
@@ -675,6 +680,14 @@ enum virtchnl_vfr_states {
 	VIRTCHNL_VFR_VFACTIVE,
 };
 
+/* Type of RSS algorithm */
+enum virtchnl_rss_algorithm {
+	VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC	= 0,
+	VIRTCHNL_RSS_ALG_R_ASYMMETRIC		= 1,
+	VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC	= 2,
+	VIRTCHNL_RSS_ALG_XOR_SYMMETRIC		= 3,
+};
+
 #define VIRTCHNL_MAX_NUM_PROTO_HDRS	32
 #define PROTO_HDR_SHIFT			5
 #define PROTO_HDR_FIELD_START(proto_hdr_type) ((proto_hdr_type) << PROTO_HDR_SHIFT)
@@ -830,6 +843,14 @@ struct virtchnl_proto_hdrs {
 
 VIRTCHNL_CHECK_STRUCT_LEN(2312, virtchnl_proto_hdrs);
 
+struct virtchnl_rss_cfg {
+	struct virtchnl_proto_hdrs proto_hdrs;	   /* protocol headers */
+	enum virtchnl_rss_algorithm rss_algorithm; /* RSS algorithm type */
+	u8 reserved[128];			   /* reserve for future */
+};
+
+VIRTCHNL_CHECK_STRUCT_LEN(2444, virtchnl_rss_cfg);
+
 /* action configuration for FDIR */
 struct virtchnl_filter_action {
 	enum virtchnl_action type;
@@ -1098,6 +1119,10 @@ virtchnl_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode,
 	case VIRTCHNL_OP_DEL_CLOUD_FILTER:
 		valid_len = sizeof(struct virtchnl_filter);
 		break;
+	case VIRTCHNL_OP_ADD_RSS_CFG:
+	case VIRTCHNL_OP_DEL_RSS_CFG:
+		valid_len = sizeof(struct virtchnl_rss_cfg);
+		break;
 	case VIRTCHNL_OP_ADD_FDIR_FILTER:
 		valid_len = sizeof(struct virtchnl_fdir_add);
 		break;