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Message-ID: <20241112185432.1152541-1-srasheed@marvell.com>
Date: Tue, 12 Nov 2024 10:54:31 -0800
From: Shinas Rasheed <srasheed@...vell.com>
To: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <hgani@...vell.com>, <sedara@...vell.com>, <vimleshk@...vell.com>,
<thaller@...hat.com>, <wizhao@...hat.com>, <kheib@...hat.com>,
<egallen@...hat.com>, <konguyen@...hat.com>, <horms@...nel.org>,
<einstein.xue@...axg.com>, Shinas Rasheed <srasheed@...vell.com>,
Veerasenareddy Burru <vburru@...vell.com>,
Andrew Lunn
<andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
"Eric
Dumazet" <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
<pabeni@...hat.com>
Subject: [PATCH net-next v2] octeon_ep: add ndo ops for VFs in PF driver
These APIs are needed to support applications that use netlink to get VF
information from a PF driver.
Signed-off-by: Shinas Rasheed <srasheed@...vell.com>
---
V2:
- Corrected typos, and removed not supported ndo_set_vf* hooks
V1: https://lore.kernel.org/all/20241107121637.1117089-1-srasheed@marvell.com/
.../ethernet/marvell/octeon_ep/octep_main.c | 41 +++++++++++++++++++
.../ethernet/marvell/octeon_ep/octep_main.h | 1 +
.../marvell/octeon_ep/octep_pfvf_mbox.c | 22 +++++++++-
.../marvell/octeon_ep/octep_pfvf_mbox.h | 3 ++
4 files changed, 65 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
index 549436efc204..6c1689a98f20 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
@@ -1137,6 +1137,44 @@ static int octep_set_features(struct net_device *dev, netdev_features_t features
return err;
}
+static int octep_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivi)
+{
+ struct octep_device *oct = netdev_priv(dev);
+
+ ivi->vf = vf;
+ ether_addr_copy(ivi->mac, oct->vf_info[vf].mac_addr);
+ ivi->vlan = 0;
+ ivi->qos = 0;
+ ivi->spoofchk = 0;
+ ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
+ ivi->trusted = true;
+ ivi->max_tx_rate = 10000;
+ ivi->min_tx_rate = 0;
+
+ return 0;
+}
+
+static int octep_set_vf_mac(struct net_device *dev, int vf, u8 *mac)
+{
+ struct octep_device *oct = netdev_priv(dev);
+ int err;
+
+ if (!is_valid_ether_addr(mac)) {
+ dev_err(&oct->pdev->dev, "Invalid MAC Address %pM\n", mac);
+ return -EADDRNOTAVAIL;
+ }
+
+ dev_dbg(&oct->pdev->dev, "set vf-%d mac to %pM\n", vf, mac);
+ ether_addr_copy(oct->vf_info[vf].mac_addr, mac);
+ oct->vf_info[vf].flags |= OCTEON_PFVF_FLAG_MAC_SET_BY_PF;
+
+ err = octep_ctrl_net_set_mac_addr(oct, vf, mac, true);
+ if (err)
+ dev_err(&oct->pdev->dev, "Set VF%d MAC address failed via host control Mbox\n", vf);
+
+ return err;
+}
+
static const struct net_device_ops octep_netdev_ops = {
.ndo_open = octep_open,
.ndo_stop = octep_stop,
@@ -1146,6 +1184,9 @@ static const struct net_device_ops octep_netdev_ops = {
.ndo_set_mac_address = octep_set_mac,
.ndo_change_mtu = octep_change_mtu,
.ndo_set_features = octep_set_features,
+ /* for VFs */
+ .ndo_get_vf_config = octep_get_vf_config,
+ .ndo_set_vf_mac = octep_set_vf_mac
};
/**
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.h b/drivers/net/ethernet/marvell/octeon_ep/octep_main.h
index fee59e0e0138..3b56916af468 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.h
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.h
@@ -220,6 +220,7 @@ struct octep_iface_link_info {
/* The Octeon VF device specific info data structure.*/
struct octep_pfvf_info {
u8 mac_addr[ETH_ALEN];
+ u32 flags;
u32 mbox_version;
};
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c b/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c
index e6eb98d70f3c..26db2d34d1c0 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c
@@ -156,12 +156,23 @@ static void octep_pfvf_set_mac_addr(struct octep_device *oct, u32 vf_id,
{
int err;
+ if (oct->vf_info[vf_id].flags & OCTEON_PFVF_FLAG_MAC_SET_BY_PF) {
+ dev_err(&oct->pdev->dev,
+ "VF%d attempted to override administrative set MAC address\n",
+ vf_id);
+ rsp->s_set_mac.type = OCTEP_PFVF_MBOX_TYPE_RSP_NACK;
+ return;
+ }
+
err = octep_ctrl_net_set_mac_addr(oct, vf_id, cmd.s_set_mac.mac_addr, true);
if (err) {
rsp->s_set_mac.type = OCTEP_PFVF_MBOX_TYPE_RSP_NACK;
- dev_err(&oct->pdev->dev, "Set VF MAC address failed via host control Mbox\n");
+ dev_err(&oct->pdev->dev, "Set VF%d MAC address failed via host control Mbox\n",
+ vf_id);
return;
}
+
+ ether_addr_copy(oct->vf_info[vf_id].mac_addr, cmd.s_set_mac.mac_addr);
rsp->s_set_mac.type = OCTEP_PFVF_MBOX_TYPE_RSP_ACK;
}
@@ -171,10 +182,17 @@ static void octep_pfvf_get_mac_addr(struct octep_device *oct, u32 vf_id,
{
int err;
+ if (oct->vf_info[vf_id].flags & OCTEON_PFVF_FLAG_MAC_SET_BY_PF) {
+ dev_dbg(&oct->pdev->dev, "VF%d MAC address set by PF\n", vf_id);
+ ether_addr_copy(rsp->s_set_mac.mac_addr, oct->vf_info[vf_id].mac_addr);
+ rsp->s_set_mac.type = OCTEP_PFVF_MBOX_TYPE_RSP_ACK;
+ return;
+ }
err = octep_ctrl_net_get_mac_addr(oct, vf_id, rsp->s_set_mac.mac_addr);
if (err) {
rsp->s_set_mac.type = OCTEP_PFVF_MBOX_TYPE_RSP_NACK;
- dev_err(&oct->pdev->dev, "Get VF MAC address failed via host control Mbox\n");
+ dev_err(&oct->pdev->dev, "Get VF%d MAC address failed via host control Mbox\n",
+ vf_id);
return;
}
rsp->s_set_mac.type = OCTEP_PFVF_MBOX_TYPE_RSP_ACK;
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.h b/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.h
index 0dc6eead292a..339977c7131a 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.h
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.h
@@ -23,6 +23,9 @@ enum octep_pfvf_mbox_version {
#define OCTEP_PFVF_MBOX_VERSION_CURRENT OCTEP_PFVF_MBOX_VERSION_V2
+/* VF flags */
+#define OCTEON_PFVF_FLAG_MAC_SET_BY_PF BIT_ULL(0) /* PF has set VF MAC address */
+
enum octep_pfvf_mbox_opcode {
OCTEP_PFVF_MBOX_CMD_VERSION,
OCTEP_PFVF_MBOX_CMD_SET_MTU,
--
2.25.1
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