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Message-Id: <20250828095227.1857066-5-jedrzej.jagielski@intel.com>
Date: Thu, 28 Aug 2025 11:52:27 +0200
From: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: anthony.l.nguyen@...el.com,
netdev@...r.kernel.org,
stable@...r.kernel.org,
Jedrzej Jagielski <jedrzej.jagielski@...el.com>,
Przemek Kitszel <przemyslaw.kitszel@...el.com>,
Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Subject: [PATCH iwl-net v1 4/4] ixgbe: handle IXGBE_VF_FEATURES_NEGOTIATE mbox cmd
Send to VF information about features supported by the PF driver.
Increase API version to 1.7.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h | 10 +++++
.../net/ethernet/intel/ixgbe/ixgbe_sriov.c | 37 +++++++++++++++++++
2 files changed, 47 insertions(+)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
index be452856531a..8a2ba77d1493 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
@@ -52,6 +52,7 @@ enum ixgbe_pfvf_api_rev {
ixgbe_mbox_api_14, /* API version 1.4, linux/freebsd VF driver */
ixgbe_mbox_api_15, /* API version 1.5, linux/freebsd VF driver */
ixgbe_mbox_api_16, /* API version 1.6, linux/freebsd VF driver */
+ ixgbe_mbox_api_17, /* API version 1.7, linux/freebsd VF driver */
/* This value should always be last */
ixgbe_mbox_api_unknown, /* indicates that API version is not known */
};
@@ -91,6 +92,9 @@ enum ixgbe_pfvf_api_rev {
/* mailbox API, version 1.6 VF requests */
#define IXGBE_VF_GET_PF_LINK_STATE 0x11 /* request PF to send link info */
+/* mailbox API, version 1.7 VF requests */
+#define IXGBE_VF_FEATURES_NEGOTIATE 0x12 /* get features supported by PF */
+
/* length of permanent address message returned from PF */
#define IXGBE_VF_PERMADDR_MSG_LEN 4
/* word in permanent address message with the current multicast type */
@@ -101,6 +105,12 @@ enum ixgbe_pfvf_api_rev {
#define IXGBE_VF_MBX_INIT_TIMEOUT 2000 /* number of retries on mailbox */
#define IXGBE_VF_MBX_INIT_DELAY 500 /* microseconds between retries */
+/* features negotiated between PF/VF */
+#define IXGBEVF_PF_SUP_IPSEC BIT(0)
+#define IXGBEVF_PF_SUP_ESX_MBX BIT(1)
+
+#define IXGBE_SUPPORTED_FEATURES IXGBEVF_PF_SUP_IPSEC
+
struct ixgbe_hw;
int ixgbe_read_mbx(struct ixgbe_hw *, u32 *, u16, u16);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 2d5584c36cd0..39cd0a9c9480 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -511,6 +511,7 @@ static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf
case ixgbe_mbox_api_13:
case ixgbe_mbox_api_14:
case ixgbe_mbox_api_16:
+ case ixgbe_mbox_api_17:
/* Version 1.1 supports jumbo frames on VFs if PF has
* jumbo frames enabled which means legacy VFs are
* disabled
@@ -1048,6 +1049,7 @@ static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
case ixgbe_mbox_api_13:
case ixgbe_mbox_api_14:
case ixgbe_mbox_api_16:
+ case ixgbe_mbox_api_17:
adapter->vfinfo[vf].vf_api = api;
return 0;
default:
@@ -1075,6 +1077,7 @@ static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
case ixgbe_mbox_api_13:
case ixgbe_mbox_api_14:
case ixgbe_mbox_api_16:
+ case ixgbe_mbox_api_17:
break;
default:
return -1;
@@ -1115,6 +1118,7 @@ static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
/* verify the PF is supporting the correct API */
switch (adapter->vfinfo[vf].vf_api) {
+ case ixgbe_mbox_api_17:
case ixgbe_mbox_api_16:
case ixgbe_mbox_api_14:
case ixgbe_mbox_api_13:
@@ -1149,6 +1153,7 @@ static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
/* verify the PF is supporting the correct API */
switch (adapter->vfinfo[vf].vf_api) {
+ case ixgbe_mbox_api_17:
case ixgbe_mbox_api_16:
case ixgbe_mbox_api_14:
case ixgbe_mbox_api_13:
@@ -1180,6 +1185,7 @@ static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
case ixgbe_mbox_api_13:
case ixgbe_mbox_api_14:
case ixgbe_mbox_api_16:
+ case ixgbe_mbox_api_17:
break;
default:
return -EOPNOTSUPP;
@@ -1251,6 +1257,7 @@ static int ixgbe_get_vf_link_state(struct ixgbe_adapter *adapter,
case ixgbe_mbox_api_13:
case ixgbe_mbox_api_14:
case ixgbe_mbox_api_16:
+ case ixgbe_mbox_api_17:
break;
default:
return -EOPNOTSUPP;
@@ -1278,6 +1285,7 @@ static int ixgbe_send_vf_link_status(struct ixgbe_adapter *adapter,
switch (adapter->vfinfo[vf].vf_api) {
case ixgbe_mbox_api_16:
+ case ixgbe_mbox_api_17:
if (hw->mac.type != ixgbe_mac_e610)
return -EOPNOTSUPP;
break;
@@ -1293,6 +1301,32 @@ static int ixgbe_send_vf_link_status(struct ixgbe_adapter *adapter,
return 0;
}
+/**
+ * ixgbe_negotiate_vf_features - negotiate supported features with VF driver
+ * @adapter: pointer to adapter struct
+ * @msgbuf: pointer to message buffers
+ * @vf: VF identifier
+ *
+ * Return: 0 on success or -EOPNOTSUPP when operation is not supported.
+ */
+static int ixgbe_negotiate_vf_features(struct ixgbe_adapter *adapter,
+ u32 *msgbuf, u32 vf)
+{
+ u32 features = msgbuf[1];
+
+ switch (adapter->vfinfo[vf].vf_api) {
+ case ixgbe_mbox_api_17:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ features &= IXGBE_SUPPORTED_FEATURES;
+ msgbuf[1] = features;
+
+ return 0;
+}
+
static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
{
u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
@@ -1370,6 +1404,9 @@ static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
case IXGBE_VF_GET_PF_LINK_STATE:
retval = ixgbe_send_vf_link_status(adapter, msgbuf, vf);
break;
+ case IXGBE_VF_FEATURES_NEGOTIATE:
+ retval = ixgbe_negotiate_vf_features(adapter, msgbuf, vf);
+ break;
default:
e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
retval = -EIO;
--
2.31.1
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