diff mbox series

[net-next,v2] octeon_ep: add ndo ops for VFs in PF driver

Message ID 20241112185432.1152541-1-srasheed@marvell.com (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series [net-next,v2] octeon_ep: add ndo ops for VFs in PF driver | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 3 this patch: 3
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 3 this patch: 3
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 4 this patch: 4
netdev/checkpatch warning WARNING: line length of 100 exceeds 80 columns WARNING: line length of 82 exceeds 80 columns WARNING: line length of 87 exceeds 80 columns WARNING: line length of 88 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 17 this patch: 17
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-11-13--03-00 (tests: 786)

Commit Message

Shinas Rasheed Nov. 12, 2024, 6:54 p.m. UTC 
These APIs are needed to support applications that use netlink to get VF
information from a PF driver.

Signed-off-by: Shinas Rasheed <srasheed@marvell.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(-)

Comments

Kalesh Anakkur Purayil Nov. 13, 2024, 3:50 a.m. UTC | #1 
On Wed, Nov 13, 2024 at 3:44 AM Shinas Rasheed <srasheed@marvell.com> wrote:
>
> These APIs are needed to support applications that use netlink to get VF
> information from a PF driver.
>
> Signed-off-by: Shinas Rasheed <srasheed@marvell.com>

LGTM, thanks for making suggested changes.

Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Simon Horman Nov. 13, 2024, 1:46 p.m. UTC | #2 
On Tue, Nov 12, 2024 at 10:54:31AM -0800, Shinas Rasheed wrote:
> These APIs are needed to support applications that use netlink to get VF
> information from a PF driver.
> 
> Signed-off-by: Shinas Rasheed <srasheed@marvell.com>
> ---
> V2:
>   - Corrected typos, and removed not supported ndo_set_vf* hooks
> 
> V1: https://lore.kernel.org/all/20241107121637.1117089-1-srasheed@marvell.com/

Thanks for the updates.

Reviewed-by: Simon Horman <horms@kernel.org>

...
diff mbox series

Patch

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,