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Date: Tue, 11 Mar 2014 18:53:04 +0530
From: Sathya Perla <sathya.perla@...lex.com>
To: <netdev@...r.kernel.org>
Subject: [PATCH net-next 2/7] be2net: Add link state control for VFs
From: Suresh Reddy <suresh.reddy@...lex.com>
Add support to control VF's link state by implementing the
ndo_set_vf_link_state() hook.
Signed-off-by: Suresh Reddy <suresh.reddy@...lex.com>
Signed-off-by: Sathya Perla <sathya.perla@...lex.com>
---
drivers/net/ethernet/emulex/benet/be.h | 1 +
drivers/net/ethernet/emulex/benet/be_cmds.c | 50 +++++++++++++++++++++++++--
drivers/net/ethernet/emulex/benet/be_cmds.h | 10 +++++
drivers/net/ethernet/emulex/benet/be_main.c | 32 ++++++++++++++++-
4 files changed, 88 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index a91267b..d08c707 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -359,6 +359,7 @@ struct be_vf_cfg {
int pmac_id;
u16 vlan_tag;
u32 tx_rate;
+ u32 plink_tracking;
};
enum vf_state {
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 72bde5d..ff353d7 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -202,8 +202,12 @@ static void be_async_link_state_process(struct be_adapter *adapter,
/* When link status changes, link speed must be re-queried from FW */
adapter->phy.link_speed = -1;
- /* Ignore physical link event */
- if (lancer_chip(adapter) &&
+ /* On BEx the FW does not send a separate link status
+ * notification for physical and logical link.
+ * On other chips just process the logical link
+ * status notification
+ */
+ if (!BEx_chip(adapter) &&
!(evt->port_link_status & LOGICAL_LINK_STATUS_MASK))
return;
@@ -211,7 +215,8 @@ static void be_async_link_state_process(struct be_adapter *adapter,
* it may not be received in some cases.
*/
if (adapter->flags & BE_FLAGS_LINK_STATUS_INIT)
- be_link_status_update(adapter, evt->port_link_status);
+ be_link_status_update(adapter,
+ evt->port_link_status & LINK_STATUS_MASK);
}
/* Grp5 CoS Priority evt */
@@ -3743,6 +3748,45 @@ err:
return status;
}
+int be_cmd_set_logical_link_config(struct be_adapter *adapter,
+ int link_state, u8 domain)
+{
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_set_ll_link *req;
+ int status;
+
+ if (BEx_chip(adapter) || lancer_chip(adapter))
+ return 0;
+
+ spin_lock_bh(&adapter->mcc_lock);
+
+ wrb = wrb_from_mccq(adapter);
+ if (!wrb) {
+ status = -EBUSY;
+ goto err;
+ }
+
+ req = embedded_payload(wrb);
+
+ be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_SET_LOGICAL_LINK_CONFIG,
+ sizeof(*req), wrb, NULL);
+
+ req->hdr.version = 1;
+ req->hdr.domain = domain;
+
+ if (link_state == IFLA_VF_LINK_STATE_ENABLE)
+ req->link_config |= 1;
+
+ if (link_state == IFLA_VF_LINK_STATE_AUTO)
+ req->link_config |= 1 << PLINK_TRACK_SHIFT;
+
+ status = be_mcc_notify_wait(adapter);
+err:
+ spin_unlock_bh(&adapter->mcc_lock);
+ return status;
+}
+
int be_roce_mcc_cmd(void *netdev_handle, void *wrb_payload,
int wrb_payload_size, u16 *cmd_status, u16 *ext_status)
{
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index d0ab980..fda3e88 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -203,6 +203,7 @@ struct be_mcc_mailbox {
#define OPCODE_COMMON_GET_BEACON_STATE 70
#define OPCODE_COMMON_READ_TRANSRECV_DATA 73
#define OPCODE_COMMON_GET_PORT_NAME 77
+#define OPCODE_COMMON_SET_LOGICAL_LINK_CONFIG 80
#define OPCODE_COMMON_SET_INTERRUPT_ENABLE 89
#define OPCODE_COMMON_SET_FN_PRIVILEGES 100
#define OPCODE_COMMON_GET_PHY_DETAILS 102
@@ -1991,6 +1992,13 @@ struct be_cmd_resp_get_iface_list {
struct be_if_desc if_desc;
};
+/*************** Set logical link ********************/
+#define PLINK_TRACK_SHIFT 8
+struct be_cmd_req_set_ll_link {
+ struct be_cmd_req_hdr hdr;
+ u32 link_config; /* Bit 0: UP_DOWN, Bit 9: PLINK */
+};
+
int be_pci_fnum_get(struct be_adapter *adapter);
int be_fw_wait_ready(struct be_adapter *adapter);
int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
@@ -2112,3 +2120,5 @@ int be_cmd_get_if_id(struct be_adapter *adapter, struct be_vf_cfg *vf_cfg,
int vf_num);
int be_cmd_enable_vf(struct be_adapter *adapter, u8 domain);
int be_cmd_intr_set(struct be_adapter *adapter, bool intr_enable);
+int be_cmd_set_logical_link_config(struct be_adapter *adapter,
+ int link_state, u8 domain);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 5ba1ea5..2f02bcb 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -652,7 +652,7 @@ void be_link_status_update(struct be_adapter *adapter, u8 link_status)
adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
}
- if ((link_status & LINK_STATUS_MASK) == LINK_UP)
+ if (link_status)
netif_carrier_on(netdev);
else
netif_carrier_off(netdev);
@@ -1288,6 +1288,7 @@ static int be_get_vf_config(struct net_device *netdev, int vf,
vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
+ vi->linkstate = adapter->vf_cfg[vf].plink_tracking;
return 0;
}
@@ -1354,6 +1355,24 @@ static int be_set_vf_tx_rate(struct net_device *netdev,
adapter->vf_cfg[vf].tx_rate = rate;
return status;
}
+static int be_set_vf_link_state(struct net_device *netdev, int vf,
+ int link_state)
+{
+ struct be_adapter *adapter = netdev_priv(netdev);
+ int status;
+
+ if (!sriov_enabled(adapter))
+ return -EPERM;
+
+ if (vf >= adapter->num_vfs)
+ return -EINVAL;
+
+ status = be_cmd_set_logical_link_config(adapter, link_state, vf+1);
+ if (!status)
+ adapter->vf_cfg[vf].plink_tracking = link_state;
+
+ return status;
+}
static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
ulong now)
@@ -3109,8 +3128,12 @@ static int be_vf_setup(struct be_adapter *adapter)
if (!status)
vf_cfg->tx_rate = lnk_speed;
- if (!old_vfs)
+ if (!old_vfs) {
be_cmd_enable_vf(adapter, vf + 1);
+ be_cmd_set_logical_link_config(adapter,
+ IFLA_VF_LINK_STATE_AUTO,
+ vf+1);
+ }
}
if (!old_vfs) {
@@ -3467,6 +3490,10 @@ static int be_setup(struct be_adapter *adapter)
be_cmd_set_flow_control(adapter, adapter->tx_fc,
adapter->rx_fc);
+ if (be_physfn(adapter))
+ be_cmd_set_logical_link_config(adapter,
+ IFLA_VF_LINK_STATE_AUTO, 0);
+
if (sriov_want(adapter)) {
if (be_max_vfs(adapter))
be_vf_setup(adapter);
@@ -4106,6 +4133,7 @@ static const struct net_device_ops be_netdev_ops = {
.ndo_set_vf_vlan = be_set_vf_vlan,
.ndo_set_vf_tx_rate = be_set_vf_tx_rate,
.ndo_get_vf_config = be_get_vf_config,
+ .ndo_set_vf_link_state = be_set_vf_link_state,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = be_netpoll,
#endif
--
1.7.1
--
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