From: Slawomir Mrozowicz <slawomirx.mrozow...@intel.com>
Adding a functionality that retrieves information from PF regarding
the link state of a given VF.
It is part of the general functionality that allows the PF driver
to control the state of the virtual link VF devices.
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozow...@intel.com>
Reviewed-by: Tyl, RadoslawX <radoslawx....@intel.com>
Reviewed-by: Skajewski, PiotrX <piotrx.skajew...@intel.com>
Reviewed-by: Michael, Alice <alice.mich...@intel.com>
---
drivers/net/ixgbe/base/ixgbe_mbx.h | 1 +
drivers/net/ixgbe/base/ixgbe_type.h | 1 +
drivers/net/ixgbe/base/ixgbe_vf.c | 29 +++++++++++++++++++++++++++++
drivers/net/ixgbe/base/ixgbe_vf.h | 1 +
4 files changed, 32 insertions(+)
diff --git a/drivers/net/ixgbe/base/ixgbe_mbx.h
b/drivers/net/ixgbe/base/ixgbe_mbx.h
index fadfccaabb..f368b1d745 100644
--- a/drivers/net/ixgbe/base/ixgbe_mbx.h
+++ b/drivers/net/ixgbe/base/ixgbe_mbx.h
@@ -123,6 +123,7 @@ enum ixgbe_pfvf_api_rev {
#define IXGBE_VF_GET_RETA 0x0a /* VF request for RETA */
#define IXGBE_VF_GET_RSS_KEY 0x0b /* get RSS key */
#define IXGBE_VF_UPDATE_XCAST_MODE 0x0c
+#define IXGBE_VF_GET_LINK_STATE 0x10 /* get vf link state */
/* mode choices for IXGBE_VF_UPDATE_XCAST_MODE */
enum ixgbevf_xcast_modes {
diff --git a/drivers/net/ixgbe/base/ixgbe_type.h
b/drivers/net/ixgbe/base/ixgbe_type.h
index 51b9ef274b..ec832fb1b0 100644
--- a/drivers/net/ixgbe/base/ixgbe_type.h
+++ b/drivers/net/ixgbe/base/ixgbe_type.h
@@ -3983,6 +3983,7 @@ struct ixgbe_mac_operations {
ixgbe_mc_addr_itr);
s32 (*update_mc_addr_list)(struct ixgbe_hw *, u8 *, u32,
ixgbe_mc_addr_itr, bool clear);
+ s32 (*get_link_state)(struct ixgbe_hw *, bool *);
s32 (*enable_mc)(struct ixgbe_hw *);
s32 (*disable_mc)(struct ixgbe_hw *);
s32 (*clear_vfta)(struct ixgbe_hw *);
diff --git a/drivers/net/ixgbe/base/ixgbe_vf.c
b/drivers/net/ixgbe/base/ixgbe_vf.c
index 603c24b653..0d5b29ba50 100644
--- a/drivers/net/ixgbe/base/ixgbe_vf.c
+++ b/drivers/net/ixgbe/base/ixgbe_vf.c
@@ -46,6 +46,7 @@ s32 ixgbe_init_ops_vf(struct ixgbe_hw *hw)
hw->mac.ops.init_rx_addrs = NULL;
hw->mac.ops.update_mc_addr_list = ixgbe_update_mc_addr_list_vf;
hw->mac.ops.update_xcast_mode = ixgbevf_update_xcast_mode;
+ hw->mac.ops.get_link_state = ixgbe_get_link_state_vf;
hw->mac.ops.enable_mc = NULL;
hw->mac.ops.disable_mc = NULL;
hw->mac.ops.clear_vfta = NULL;
@@ -426,6 +427,34 @@ s32 ixgbevf_update_xcast_mode(struct ixgbe_hw *hw, int
xcast_mode)
return IXGBE_SUCCESS;
}
+/**
+ * ixgbe_get_link_state_vf - Get VF link state from PF
+ * @hw: pointer to the HW structure
+ * @link_state: link state storage
+ *
+ * Returns state of the operation error or success.
+ **/
+s32 ixgbe_get_link_state_vf(struct ixgbe_hw *hw, bool *link_state)
+{
+ u32 msgbuf[2];
+ s32 err;
+ s32 ret_val;
+
+ msgbuf[0] = IXGBE_VF_GET_LINK_STATE;
+ msgbuf[1] = 0x0;
+
+ err = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 2);
+
+ if (err || (msgbuf[0] & IXGBE_VT_MSGTYPE_FAILURE)) {
+ ret_val = IXGBE_ERR_MBX;
+ } else {
+ ret_val = IXGBE_SUCCESS;
+ *link_state = msgbuf[1];
+ }
+
+ return ret_val;
+}
+
/**
* ixgbe_set_vfta_vf - Set/Unset vlan filter table address
* @hw: pointer to the HW structure
diff --git a/drivers/net/ixgbe/base/ixgbe_vf.h
b/drivers/net/ixgbe/base/ixgbe_vf.h
index be58b4f76e..bd10865d57 100644
--- a/drivers/net/ixgbe/base/ixgbe_vf.h
+++ b/drivers/net/ixgbe/base/ixgbe_vf.h
@@ -106,6 +106,7 @@ s32 ixgbe_update_mc_addr_list_vf(struct ixgbe_hw *hw, u8
*mc_addr_list,
u32 mc_addr_count, ixgbe_mc_addr_itr,
bool clear);
s32 ixgbevf_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode);
+s32 ixgbe_get_link_state_vf(struct ixgbe_hw *hw, bool *link_state);
s32 ixgbe_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
bool vlan_on, bool vlvf_bypass);
s32 ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size);
--
2.43.0
