be2net: code to support tx rate configuration on virtual functions

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h
index f693b9e..8cfe3c4 100644 (file)
--- a/drivers/net/benet/be.h
+++ b/drivers/net/benet/be.h
@@ -225,6 +225,7 @@ struct be_vf_cfg {
        u32 vf_if_handle;
        u32 vf_pmac_id;
        u16 vf_vlan_tag;
+       u32 vf_tx_rate;
 };
 
 #define BE_NUM_MSIX_VECTORS            2       /* 1 each for Tx and Rx */

diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 344e062..408e1f2 100644 (file)
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -1730,3 +1730,36 @@ err:
        spin_unlock_bh(&adapter->mcc_lock);
        return status;
 }
+
+int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain)
+{
+       struct be_mcc_wrb *wrb;
+       struct be_cmd_req_set_qos *req;
+       int status;
+
+       spin_lock_bh(&adapter->mcc_lock);
+
+       wrb = wrb_from_mccq(adapter);
+       if (!wrb) {
+               status = -EBUSY;
+               goto err;
+       }
+
+       req = embedded_payload(wrb);
+
+       be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0,
+                               OPCODE_COMMON_SET_QOS);
+
+       be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+                       OPCODE_COMMON_SET_QOS, sizeof(*req));
+
+       req->hdr.domain = domain;
+       req->valid_bits = BE_QOS_BITS_NIC;
+       req->max_bps_nic = bps;
+
+       status = be_mcc_notify_wait(adapter);
+
+err:
+       spin_unlock_bh(&adapter->mcc_lock);
+       return status;
+}

diff --git a/drivers/net/benet/be_cmds.h b/drivers/net/benet/be_cmds.h
index 912a058..3b69e71 100644 (file)
--- a/drivers/net/benet/be_cmds.h
+++ b/drivers/net/benet/be_cmds.h
@@ -124,6 +124,7 @@ struct be_mcc_mailbox {
 #define OPCODE_COMMON_CQ_CREATE                                12
 #define OPCODE_COMMON_EQ_CREATE                                13
 #define OPCODE_COMMON_MCC_CREATE                       21
+#define OPCODE_COMMON_SET_QOS                          28
 #define OPCODE_COMMON_SEEPROM_READ                     30
 #define OPCODE_COMMON_NTWK_RX_FILTER                   34
 #define OPCODE_COMMON_GET_FW_VERSION                   35
@@ -894,6 +895,22 @@ struct be_cmd_resp_get_phy_info {
        u32 future_use[4];
 };
 
+/*********************** Set QOS ***********************/
+
+#define BE_QOS_BITS_NIC                                1
+
+struct be_cmd_req_set_qos {
+       struct be_cmd_req_hdr hdr;
+       u32 valid_bits;
+       u32 max_bps_nic;
+       u32 rsvd[7];
+};
+
+struct be_cmd_resp_set_qos {
+       struct be_cmd_resp_hdr hdr;
+       u32 rsvd;
+};
+
 extern int be_pci_fnum_get(struct be_adapter *adapter);
 extern int be_cmd_POST(struct be_adapter *adapter);
 extern int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
@@ -974,4 +991,5 @@ extern int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num,
                                u8 loopback_type, u8 enable);
 extern int be_cmd_get_phy_info(struct be_adapter *adapter,
                struct be_dma_mem *cmd);
+extern int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain);
 

diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index 46f087e..79adcdd 100644 (file)
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -695,7 +695,7 @@ static int be_get_vf_config(struct net_device *netdev, int vf,
                return -EINVAL;
 
        vi->vf = vf;
-       vi->tx_rate = 0;
+       vi->tx_rate = adapter->vf_cfg[vf].vf_tx_rate;
        vi->vlan = adapter->vf_cfg[vf].vf_vlan_tag;
        vi->qos = 0;
        memcpy(&vi->mac, adapter->vf_cfg[vf].vf_mac_addr, ETH_ALEN);
@@ -731,6 +731,30 @@ static int be_set_vf_vlan(struct net_device *netdev,
        return status;
 }
 
+static int be_set_vf_tx_rate(struct net_device *netdev,
+                       int vf, int rate)
+{
+       struct be_adapter *adapter = netdev_priv(netdev);
+       int status = 0;
+
+       if (!adapter->sriov_enabled)
+               return -EPERM;
+
+       if ((vf >= num_vfs) || (rate < 0))
+               return -EINVAL;
+
+       if (rate > 10000)
+               rate = 10000;
+
+       adapter->vf_cfg[vf].vf_tx_rate = rate;
+       status = be_cmd_set_qos(adapter, rate / 10, vf);
+
+       if (status)
+               dev_info(&adapter->pdev->dev,
+                               "tx rate %d on VF %d failed\n", rate, vf);
+       return status;
+}
+
 static void be_rx_rate_update(struct be_adapter *adapter)
 {
        struct be_drvr_stats *stats = drvr_stats(adapter);
@@ -2256,6 +2280,7 @@ static struct net_device_ops be_netdev_ops = {
        .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
        .ndo_set_vf_mac         = be_set_vf_mac,
        .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
 };