[dpdk-stable] patch 'net/i40e: fix VF RSS configuration' has been queued to stable release 19.11.9

[Christian Ehrhardt]

Hi,

FYI, your patch has been queued to stable release 19.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/12/21. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/cpaelzer/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/cpaelzer/dpdk-stable-queue/commit/24c9081923c3cbe139849f60bf7dc74a2a462b13

Thanks.

Christian Ehrhardt <christian.ehrhardt at canonical.com>

---
>From 24c9081923c3cbe139849f60bf7dc74a2a462b13 Mon Sep 17 00:00:00 2001
From: Alvin Zhang <alvinx.zhang at intel.com>
Date: Wed, 12 May 2021 17:23:11 +0800
Subject: [PATCH] net/i40e: fix VF RSS configuration

[ upstream commit 7594f2dac4489cde35f7088a46b8133fd4738a4a ]

The kernel driver supports VF RSS configuration message
"VIRTCHNL_OP_GET_RSS_HENA_CAPS and VIRTCHNL_OP_SET_RSS_HENA",
this patch adds PMD support for these messages.

Fixes: b81295c474b0 ("net/i40e: add user callback for VF to PF message")

Signed-off-by: Alvin Zhang <alvinx.zhang at intel.com>
Acked-by: Beilei Xing <beilei.xing at intel.com>
---
 drivers/net/i40e/i40e_pf.c | 61 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c
index 50c9930198..842f5c281f 100644
--- a/drivers/net/i40e/i40e_pf.c
+++ b/drivers/net/i40e/i40e_pf.c
@@ -29,6 +29,28 @@
 
 #define I40E_CFG_CRCSTRIP_DEFAULT 1
 
+/* Supported RSS offloads */
+#define I40E_DEFAULT_RSS_HENA ( \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_SCTP) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_SCTP) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_L2_PAYLOAD))
+
+#define I40E_DEFAULT_RSS_HENA_EXPANDED (I40E_DEFAULT_RSS_HENA | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | \
+	BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP))
+
 static int
 i40e_pf_host_switch_queues(struct i40e_pf_vf *vf,
 			   struct virtchnl_queue_select *qsel,
@@ -1288,6 +1310,37 @@ i40e_pf_host_process_cmd_request_queues(struct i40e_pf_vf *vf, uint8_t *msg)
 				(u8 *)vfres, sizeof(*vfres));
 }
 
+static void
+i40e_pf_host_process_cmd_get_rss_hena(struct i40e_pf_vf *vf)
+{
+	struct virtchnl_rss_hena vrh = {0};
+	struct i40e_pf *pf = vf->pf;
+
+	if (pf->adapter->hw.mac.type == I40E_MAC_X722)
+		vrh.hena = I40E_DEFAULT_RSS_HENA_EXPANDED;
+	else
+		vrh.hena = I40E_DEFAULT_RSS_HENA;
+
+	i40e_pf_host_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS,
+				    I40E_SUCCESS, (uint8_t *)&vrh, sizeof(vrh));
+}
+
+static void
+i40e_pf_host_process_cmd_set_rss_hena(struct i40e_pf_vf *vf, uint8_t *msg)
+{
+	struct virtchnl_rss_hena *vrh =
+		(struct virtchnl_rss_hena *)msg;
+	struct i40e_hw *hw = &vf->pf->adapter->hw;
+
+	i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_idx),
+			  (uint32_t)vrh->hena);
+	i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_idx),
+			  (uint32_t)(vrh->hena >> 32));
+
+	i40e_pf_host_send_msg_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA,
+				    I40E_SUCCESS, NULL, 0);
+}
+
 void
 i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 			   uint16_t abs_vf_id, uint32_t opcode,
@@ -1458,6 +1511,14 @@ i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
 		PMD_DRV_LOG(INFO, "OP_REQUEST_QUEUES received");
 		i40e_pf_host_process_cmd_request_queues(vf, msg);
 		break;
+	case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
+		PMD_DRV_LOG(INFO, "OP_GET_RSS_HENA_CAPS received");
+		i40e_pf_host_process_cmd_get_rss_hena(vf);
+		break;
+	case VIRTCHNL_OP_SET_RSS_HENA:
+		PMD_DRV_LOG(INFO, "OP_SET_RSS_HENA received");
+		i40e_pf_host_process_cmd_set_rss_hena(vf, msg);
+		break;
 
 	/* Don't add command supported below, which will
 	 * return an error code.
-- 
2.31.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-06-10 14:04:59.150812012 +0200
+++ 0023-net-i40e-fix-VF-RSS-configuration.patch	2021-06-10 14:04:58.050024525 +0200
@@ -1 +1 @@
-From 7594f2dac4489cde35f7088a46b8133fd4738a4a Mon Sep 17 00:00:00 2001
+From 24c9081923c3cbe139849f60bf7dc74a2a462b13 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 7594f2dac4489cde35f7088a46b8133fd4738a4a ]
+
@@ -11 +12,0 @@
-Cc: stable at dpdk.org
@@ -20 +21 @@
-index 9804ed4253..e2d8b2b5f7 100644
+index 50c9930198..842f5c281f 100644