u16 tx_rate;
u16 vlan_count;
u8 spoofchk_enabled;
+ bool rss_query_enabled;
unsigned int vf_api;
};
u8 default_up;
unsigned long fwd_bitmask; /* Bitmask indicating in use pools */
+
+/* maximum number of RETA entries among all devices supported by ixgbe
+ * driver: currently it's x550 device in non-SRIOV mode
+ */
+#define IXGBE_MAX_RETA_ENTRIES 512
+ u8 rss_indir_tbl[IXGBE_MAX_RETA_ENTRIES];
+
+#define IXGBE_RSS_KEY_SIZE 40 /* size of RSS Hash Key in bytes */
+ u32 rss_key[IXGBE_RSS_KEY_SIZE / sizeof(u32)];
};
static inline u8 ixgbe_max_rss_indices(struct ixgbe_adapter *adapter)
netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
struct ixgbe_adapter *adapter,
struct ixgbe_ring *tx_ring);
+u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter);
#endif /* _IXGBE_H_ */
return ret;
}
+static u32 ixgbe_get_rxfh_key_size(struct net_device *netdev)
+{
+ struct ixgbe_adapter *adapter = netdev_priv(netdev);
+
+ return sizeof(adapter->rss_key);
+}
+
+static u32 ixgbe_rss_indir_size(struct net_device *netdev)
+{
+ struct ixgbe_adapter *adapter = netdev_priv(netdev);
+
+ return ixgbe_rss_indir_tbl_entries(adapter);
+}
+
+static void ixgbe_get_reta(struct ixgbe_adapter *adapter, u32 *indir)
+{
+ int i, reta_size = ixgbe_rss_indir_tbl_entries(adapter);
+
+ for (i = 0; i < reta_size; i++)
+ indir[i] = adapter->rss_indir_tbl[i];
+}
+
+static int ixgbe_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
+ u8 *hfunc)
+{
+ struct ixgbe_adapter *adapter = netdev_priv(netdev);
+
+ if (hfunc)
+ *hfunc = ETH_RSS_HASH_TOP;
+
+ if (indir)
+ ixgbe_get_reta(adapter, indir);
+
+ if (key)
+ memcpy(key, adapter->rss_key, ixgbe_get_rxfh_key_size(netdev));
+
+ return 0;
+}
+
static int ixgbe_get_ts_info(struct net_device *dev,
struct ethtool_ts_info *info)
{
.set_coalesce = ixgbe_set_coalesce,
.get_rxnfc = ixgbe_get_rxnfc,
.set_rxnfc = ixgbe_set_rxnfc,
+ .get_rxfh_indir_size = ixgbe_rss_indir_size,
+ .get_rxfh_key_size = ixgbe_get_rxfh_key_size,
+ .get_rxfh = ixgbe_get_rxfh,
.get_channels = ixgbe_get_channels,
.set_channels = ixgbe_set_channels,
.get_ts_info = ixgbe_get_ts_info,
IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl);
}
-static void ixgbe_setup_reta(struct ixgbe_adapter *adapter, const u32 *seed)
+/**
+ * Return a number of entries in the RSS indirection table
+ *
+ * @adapter: device handle
+ *
+ * - 82598/82599/X540: 128
+ * - X550(non-SRIOV mode): 512
+ * - X550(SRIOV mode): 64
+ */
+u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter)
+{
+ if (adapter->hw.mac.type < ixgbe_mac_X550)
+ return 128;
+ else if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
+ return 64;
+ else
+ return 512;
+}
+
+/**
+ * Write the RETA table to HW
+ *
+ * @adapter: device handle
+ *
+ * Write the RSS redirection table stored in adapter.rss_indir_tbl[] to HW.
+ */
+static void ixgbe_store_reta(struct ixgbe_adapter *adapter)
{
+ u32 i, reta_entries = ixgbe_rss_indir_tbl_entries(adapter);
struct ixgbe_hw *hw = &adapter->hw;
u32 reta = 0;
- int i, j;
- int reta_entries = 128;
- u16 rss_i = adapter->ring_feature[RING_F_RSS].indices;
- int indices_multi;
-
- /*
- * Program table for at least 2 queues w/ SR-IOV so that VFs can
- * make full use of any rings they may have. We will use the
- * PSRTYPE register to control how many rings we use within the PF.
- */
- if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && (rss_i < 2))
- rss_i = 2;
-
- /* Fill out hash function seeds */
- for (i = 0; i < 10; i++)
- IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), seed[i]);
+ u32 indices_multi;
+ u8 *indir_tbl = adapter->rss_indir_tbl;
/* Fill out the redirection table as follows:
- * 82598: 128 (8 bit wide) entries containing pair of 4 bit RSS indices
- * 82599/X540: 128 (8 bit wide) entries containing 4 bit RSS index
- * X550: 512 (8 bit wide) entries containing 6 bit RSS index
+ * - 82598: 8 bit wide entries containing pair of 4 bit RSS
+ * indices.
+ * - 82599/X540: 8 bit wide entries containing 4 bit RSS index
+ * - X550: 8 bit wide entries containing 6 bit RSS index
*/
if (adapter->hw.mac.type == ixgbe_mac_82598EB)
indices_multi = 0x11;
else
indices_multi = 0x1;
- switch (adapter->hw.mac.type) {
- case ixgbe_mac_X550:
- case ixgbe_mac_X550EM_x:
- if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
- reta_entries = 512;
- default:
- break;
- }
-
- /* Fill out redirection table */
- for (i = 0, j = 0; i < reta_entries; i++, j++) {
- if (j == rss_i)
- j = 0;
- reta = (reta << 8) | (j * indices_multi);
+ /* Write redirection table to HW */
+ for (i = 0; i < reta_entries; i++) {
+ reta |= indices_multi * indir_tbl[i] << (i & 0x3) * 8;
if ((i & 3) == 3) {
if (i < 128)
IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta);
else
IXGBE_WRITE_REG(hw, IXGBE_ERETA((i >> 2) - 32),
reta);
+ reta = 0;
}
}
}
-static void ixgbe_setup_vfreta(struct ixgbe_adapter *adapter, const u32 *seed)
+/**
+ * Write the RETA table to HW (for x550 devices in SRIOV mode)
+ *
+ * @adapter: device handle
+ *
+ * Write the RSS redirection table stored in adapter.rss_indir_tbl[] to HW.
+ */
+static void ixgbe_store_vfreta(struct ixgbe_adapter *adapter)
{
+ u32 i, reta_entries = ixgbe_rss_indir_tbl_entries(adapter);
struct ixgbe_hw *hw = &adapter->hw;
u32 vfreta = 0;
+ unsigned int pf_pool = adapter->num_vfs;
+
+ /* Write redirection table to HW */
+ for (i = 0; i < reta_entries; i++) {
+ vfreta |= (u32)adapter->rss_indir_tbl[i] << (i & 0x3) * 8;
+ if ((i & 3) == 3) {
+ IXGBE_WRITE_REG(hw, IXGBE_PFVFRETA(i >> 2, pf_pool),
+ vfreta);
+ vfreta = 0;
+ }
+ }
+}
+
+static void ixgbe_setup_reta(struct ixgbe_adapter *adapter)
+{
+ struct ixgbe_hw *hw = &adapter->hw;
+ u32 i, j;
+ u32 reta_entries = ixgbe_rss_indir_tbl_entries(adapter);
+ u16 rss_i = adapter->ring_feature[RING_F_RSS].indices;
+
+ /* Program table for at least 2 queues w/ SR-IOV so that VFs can
+ * make full use of any rings they may have. We will use the
+ * PSRTYPE register to control how many rings we use within the PF.
+ */
+ if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && (rss_i < 2))
+ rss_i = 2;
+
+ /* Fill out hash function seeds */
+ for (i = 0; i < 10; i++)
+ IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), adapter->rss_key[i]);
+
+ /* Fill out redirection table */
+ memset(adapter->rss_indir_tbl, 0, sizeof(adapter->rss_indir_tbl));
+
+ for (i = 0, j = 0; i < reta_entries; i++, j++) {
+ if (j == rss_i)
+ j = 0;
+
+ adapter->rss_indir_tbl[i] = j;
+ }
+
+ ixgbe_store_reta(adapter);
+}
+
+static void ixgbe_setup_vfreta(struct ixgbe_adapter *adapter)
+{
+ struct ixgbe_hw *hw = &adapter->hw;
u16 rss_i = adapter->ring_feature[RING_F_RSS].indices;
unsigned int pf_pool = adapter->num_vfs;
int i, j;
/* Fill out hash function seeds */
for (i = 0; i < 10; i++)
- IXGBE_WRITE_REG(hw, IXGBE_PFVFRSSRK(i, pf_pool), seed[i]);
+ IXGBE_WRITE_REG(hw, IXGBE_PFVFRSSRK(i, pf_pool),
+ adapter->rss_key[i]);
/* Fill out the redirection table */
for (i = 0, j = 0; i < 64; i++, j++) {
if (j == rss_i)
j = 0;
- vfreta = (vfreta << 8) | j;
- if ((i & 3) == 3)
- IXGBE_WRITE_REG(hw, IXGBE_PFVFRETA(i >> 2, pf_pool),
- vfreta);
+
+ adapter->rss_indir_tbl[i] = j;
}
+
+ ixgbe_store_vfreta(adapter);
}
static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
u32 mrqc = 0, rss_field = 0, vfmrqc = 0;
- u32 rss_key[10];
u32 rxcsum;
/* Disable indicating checksum in descriptor, enables RSS hash */
if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
rss_field |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP;
- netdev_rss_key_fill(rss_key, sizeof(rss_key));
+ netdev_rss_key_fill(adapter->rss_key, sizeof(adapter->rss_key));
if ((hw->mac.type >= ixgbe_mac_X550) &&
(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) {
unsigned int pf_pool = adapter->num_vfs;
IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
/* Setup RSS through the VF registers */
- ixgbe_setup_vfreta(adapter, rss_key);
+ ixgbe_setup_vfreta(adapter);
vfmrqc = IXGBE_MRQC_RSSEN;
vfmrqc |= rss_field;
IXGBE_WRITE_REG(hw, IXGBE_PFVFMRQC(pf_pool), vfmrqc);
} else {
- ixgbe_setup_reta(adapter, rss_key);
+ ixgbe_setup_reta(adapter);
mrqc |= rss_field;
IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
}
/* enable ethertype anti spoofing if hw supports it */
if (hw->mac.ops.set_ethertype_anti_spoofing)
hw->mac.ops.set_ethertype_anti_spoofing(hw, true, i);
+
+ /* Enable/Disable RSS query feature */
+ ixgbe_ndo_set_vf_rss_query_en(adapter->netdev, i,
+ adapter->vfinfo[i].rss_query_enabled);
}
}
.ndo_set_vf_vlan = ixgbe_ndo_set_vf_vlan,
.ndo_set_vf_rate = ixgbe_ndo_set_vf_bw,
.ndo_set_vf_spoofchk = ixgbe_ndo_set_vf_spoofchk,
+ .ndo_set_vf_rss_query_en = ixgbe_ndo_set_vf_rss_query_en,
.ndo_get_vf_config = ixgbe_ndo_get_vf_config,
.ndo_get_stats64 = ixgbe_get_stats64,
#ifdef CONFIG_IXGBE_DCB
ixgbe_mbox_api_10, /* API version 1.0, linux/freebsd VF driver */
ixgbe_mbox_api_20, /* API version 2.0, solaris Phase1 VF driver */
ixgbe_mbox_api_11, /* API version 1.1, linux/freebsd VF driver */
+ ixgbe_mbox_api_12, /* API version 1.2, linux/freebsd VF driver */
/* This value should always be last */
ixgbe_mbox_api_unknown, /* indicates that API version is not known */
};
#define IXGBE_VF_TRANS_VLAN 3 /* Indication of port vlan */
#define IXGBE_VF_DEF_QUEUE 4 /* Default queue offset */
+/* mailbox API, version 1.2 VF requests */
+#define IXGBE_VF_GET_RETA 0x0a /* VF request for RETA */
+#define IXGBE_VF_GET_RSS_KEY 0x0b /* get RSS key */
+
/* length of permanent address message returned from PF */
#define IXGBE_VF_PERMADDR_MSG_LEN 4
/* word in permanent address message with the current multicast type */
adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
IXGBE_FLAG2_RSC_ENABLED);
- /* enable spoof checking for all VFs */
- for (i = 0; i < adapter->num_vfs; i++)
+ for (i = 0; i < adapter->num_vfs; i++) {
+ /* enable spoof checking for all VFs */
adapter->vfinfo[i].spoofchk_enabled = true;
+
+ /* We support VF RSS querying only for 82599 and x540
+ * devices at the moment. These devices share RSS
+ * indirection table and RSS hash key with PF therefore
+ * we want to disable the querying by default.
+ */
+ adapter->vfinfo[i].rss_query_enabled = 0;
+ }
+
return 0;
}
#endif /* CONFIG_FCOE */
switch (adapter->vfinfo[vf].vf_api) {
case ixgbe_mbox_api_11:
+ case ixgbe_mbox_api_12:
/*
* Version 1.1 supports jumbo frames on VFs if PF has
* jumbo frames enabled which means legacy VFs are
switch (api) {
case ixgbe_mbox_api_10:
case ixgbe_mbox_api_11:
+ case ixgbe_mbox_api_12:
adapter->vfinfo[vf].vf_api = api;
return 0;
default:
switch (adapter->vfinfo[vf].vf_api) {
case ixgbe_mbox_api_20:
case ixgbe_mbox_api_11:
+ case ixgbe_mbox_api_12:
break;
default:
return -1;
return 0;
}
+static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
+{
+ u32 i, j;
+ u32 *out_buf = &msgbuf[1];
+ const u8 *reta = adapter->rss_indir_tbl;
+ u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
+
+ /* Check if operation is permitted */
+ if (!adapter->vfinfo[vf].rss_query_enabled)
+ return -EPERM;
+
+ /* verify the PF is supporting the correct API */
+ if (adapter->vfinfo[vf].vf_api != ixgbe_mbox_api_12)
+ return -EOPNOTSUPP;
+
+ /* This mailbox command is supported (required) only for 82599 and x540
+ * VFs which support up to 4 RSS queues. Therefore we will compress the
+ * RETA by saving only 2 bits from each entry. This way we will be able
+ * to transfer the whole RETA in a single mailbox operation.
+ */
+ for (i = 0; i < reta_size / 16; i++) {
+ out_buf[i] = 0;
+ for (j = 0; j < 16; j++)
+ out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
+ }
+
+ return 0;
+}
+
+static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
+ u32 *msgbuf, u32 vf)
+{
+ u32 *rss_key = &msgbuf[1];
+
+ /* Check if the operation is permitted */
+ if (!adapter->vfinfo[vf].rss_query_enabled)
+ return -EPERM;
+
+ /* verify the PF is supporting the correct API */
+ if (adapter->vfinfo[vf].vf_api != ixgbe_mbox_api_12)
+ return -EOPNOTSUPP;
+
+ memcpy(rss_key, adapter->rss_key, sizeof(adapter->rss_key));
+
+ return 0;
+}
+
static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
{
u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
case IXGBE_VF_GET_QUEUES:
retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
break;
+ case IXGBE_VF_GET_RETA:
+ retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
+ break;
+ case IXGBE_VF_GET_RSS_KEY:
+ retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
+ break;
default:
e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
retval = IXGBE_ERR_MBX;
return 0;
}
+int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
+ bool setting)
+{
+ struct ixgbe_adapter *adapter = netdev_priv(netdev);
+
+ /* This operation is currently supported only for 82599 and x540
+ * devices.
+ */
+ if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
+ adapter->hw.mac.type >= ixgbe_mac_X550)
+ return -EOPNOTSUPP;
+
+ if (vf >= adapter->num_vfs)
+ return -EINVAL;
+
+ adapter->vfinfo[vf].rss_query_enabled = setting;
+
+ return 0;
+}
+
int ixgbe_ndo_get_vf_config(struct net_device *netdev,
int vf, struct ifla_vf_info *ivi)
{
ivi->vlan = adapter->vfinfo[vf].pf_vlan;
ivi->qos = adapter->vfinfo[vf].pf_qos;
ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
+ ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
return 0;
}
int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
int max_tx_rate);
int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting);
+int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
+ bool setting);
int ixgbe_ndo_get_vf_config(struct net_device *netdev,
int vf, struct ifla_vf_info *ivi);
void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter);
return 0;
}
+static int ixgbevf_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
+ u32 *rules __always_unused)
+{
+ struct ixgbevf_adapter *adapter = netdev_priv(dev);
+
+ switch (info->cmd) {
+ case ETHTOOL_GRXRINGS:
+ info->data = adapter->num_rx_queues;
+ return 0;
+ default:
+ hw_dbg(&adapter->hw, "Command parameters not supported\n");
+ return -EOPNOTSUPP;
+ }
+}
+
+static u32 ixgbevf_get_rxfh_indir_size(struct net_device *netdev)
+{
+ struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+
+ /* We support this operation only for 82599 and x540 at the moment */
+ if (adapter->hw.mac.type < ixgbe_mac_X550_vf)
+ return IXGBEVF_82599_RETA_SIZE;
+
+ return 0;
+}
+
+static u32 ixgbevf_get_rxfh_key_size(struct net_device *netdev)
+{
+ struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+
+ /* We support this operation only for 82599 and x540 at the moment */
+ if (adapter->hw.mac.type < ixgbe_mac_X550_vf)
+ return IXGBEVF_RSS_HASH_KEY_SIZE;
+
+ return 0;
+}
+
+static int ixgbevf_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
+ u8 *hfunc)
+{
+ struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+ int err = 0;
+
+ if (hfunc)
+ *hfunc = ETH_RSS_HASH_TOP;
+
+ /* If neither indirection table nor hash key was requested - just
+ * return a success avoiding taking any locks.
+ */
+ if (!indir && !key)
+ return 0;
+
+ spin_lock_bh(&adapter->mbx_lock);
+ if (indir)
+ err = ixgbevf_get_reta_locked(&adapter->hw, indir,
+ adapter->num_rx_queues);
+
+ if (!err && key)
+ err = ixgbevf_get_rss_key_locked(&adapter->hw, key);
+
+ spin_unlock_bh(&adapter->mbx_lock);
+
+ return err;
+}
+
static const struct ethtool_ops ixgbevf_ethtool_ops = {
.get_settings = ixgbevf_get_settings,
.get_drvinfo = ixgbevf_get_drvinfo,
.get_ethtool_stats = ixgbevf_get_ethtool_stats,
.get_coalesce = ixgbevf_get_coalesce,
.set_coalesce = ixgbevf_set_coalesce,
+ .get_rxnfc = ixgbevf_get_rxnfc,
+ .get_rxfh_indir_size = ixgbevf_get_rxfh_indir_size,
+ .get_rxfh_key_size = ixgbevf_get_rxfh_key_size,
+ .get_rxfh = ixgbevf_get_rxfh,
};
void ixgbevf_set_ethtool_ops(struct net_device *netdev)
#define MAX_RX_QUEUES IXGBE_VF_MAX_RX_QUEUES
#define MAX_TX_QUEUES IXGBE_VF_MAX_TX_QUEUES
#define IXGBEVF_MAX_RSS_QUEUES 2
+#define IXGBEVF_82599_RETA_SIZE 128
+#define IXGBEVF_RSS_HASH_KEY_SIZE 40
#define IXGBEVF_DEFAULT_TXD 1024
#define IXGBEVF_DEFAULT_RXD 512
static void ixgbevf_negotiate_api(struct ixgbevf_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
- int api[] = { ixgbe_mbox_api_11,
+ int api[] = { ixgbe_mbox_api_12,
+ ixgbe_mbox_api_11,
ixgbe_mbox_api_10,
ixgbe_mbox_api_unknown };
int err = 0, idx = 0;
switch (hw->api_version) {
case ixgbe_mbox_api_11:
+ case ixgbe_mbox_api_12:
adapter->num_rx_queues = rss;
adapter->num_tx_queues = rss;
default:
switch (adapter->hw.api_version) {
case ixgbe_mbox_api_11:
+ case ixgbe_mbox_api_12:
max_possible_frame = IXGBE_MAX_JUMBO_FRAME_SIZE;
break;
default:
ixgbe_mbox_api_10, /* API version 1.0, linux/freebsd VF driver */
ixgbe_mbox_api_20, /* API version 2.0, solaris Phase1 VF driver */
ixgbe_mbox_api_11, /* API version 1.1, linux/freebsd VF driver */
+ ixgbe_mbox_api_12, /* API version 1.2, linux/freebsd VF driver */
/* This value should always be last */
ixgbe_mbox_api_unknown, /* indicates that API version is not known */
};
#define IXGBE_VF_TRANS_VLAN 3 /* Indication of port VLAN */
#define IXGBE_VF_DEF_QUEUE 4 /* Default queue offset */
+/* mailbox API, version 1.2 VF requests */
+#define IXGBE_VF_GET_RETA 0x0a /* VF request for RETA */
+#define IXGBE_VF_GET_RSS_KEY 0x0b /* get RSS hash key */
+
/* length of permanent address message returned from PF */
#define IXGBE_VF_PERMADDR_MSG_LEN 4
/* word in permanent address message with the current multicast type */
return ret_val;
}
+/**
+ * ixgbevf_get_reta_locked - get the RSS redirection table (RETA) contents.
+ * @adapter: pointer to the port handle
+ * @reta: buffer to fill with RETA contents.
+ * @num_rx_queues: Number of Rx queues configured for this port
+ *
+ * The "reta" buffer should be big enough to contain 32 registers.
+ *
+ * Returns: 0 on success.
+ * if API doesn't support this operation - (-EOPNOTSUPP).
+ */
+int ixgbevf_get_reta_locked(struct ixgbe_hw *hw, u32 *reta, int num_rx_queues)
+{
+ int err, i, j;
+ u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
+ u32 *hw_reta = &msgbuf[1];
+ u32 mask = 0;
+
+ /* We have to use a mailbox for 82599 and x540 devices only.
+ * For these devices RETA has 128 entries.
+ * Also these VFs support up to 4 RSS queues. Therefore PF will compress
+ * 16 RETA entries in each DWORD giving 2 bits to each entry.
+ */
+ int dwords = IXGBEVF_82599_RETA_SIZE / 16;
+
+ /* We support the RSS querying for 82599 and x540 devices only.
+ * Thus return an error if API doesn't support RETA querying or querying
+ * is not supported for this device type.
+ */
+ if (hw->api_version != ixgbe_mbox_api_12 ||
+ hw->mac.type >= ixgbe_mac_X550_vf)
+ return -EOPNOTSUPP;
+
+ msgbuf[0] = IXGBE_VF_GET_RETA;
+
+ err = hw->mbx.ops.write_posted(hw, msgbuf, 1);
+
+ if (err)
+ return err;
+
+ err = hw->mbx.ops.read_posted(hw, msgbuf, dwords + 1);
+
+ if (err)
+ return err;
+
+ msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
+
+ /* If the operation has been refused by a PF return -EPERM */
+ if (msgbuf[0] == (IXGBE_VF_GET_RETA | IXGBE_VT_MSGTYPE_NACK))
+ return -EPERM;
+
+ /* If we didn't get an ACK there must have been
+ * some sort of mailbox error so we should treat it
+ * as such.
+ */
+ if (msgbuf[0] != (IXGBE_VF_GET_RETA | IXGBE_VT_MSGTYPE_ACK))
+ return IXGBE_ERR_MBX;
+
+ /* ixgbevf doesn't support more than 2 queues at the moment */
+ if (num_rx_queues > 1)
+ mask = 0x1;
+
+ for (i = 0; i < dwords; i++)
+ for (j = 0; j < 16; j++)
+ reta[i * 16 + j] = (hw_reta[i] >> (2 * j)) & mask;
+
+ return 0;
+}
+
+/**
+ * ixgbevf_get_rss_key_locked - get the RSS Random Key
+ * @hw: pointer to the HW structure
+ * @rss_key: buffer to fill with RSS Hash Key contents.
+ *
+ * The "rss_key" buffer should be big enough to contain 10 registers.
+ *
+ * Returns: 0 on success.
+ * if API doesn't support this operation - (-EOPNOTSUPP).
+ */
+int ixgbevf_get_rss_key_locked(struct ixgbe_hw *hw, u8 *rss_key)
+{
+ int err;
+ u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
+
+ /* We currently support the RSS Random Key retrieval for 82599 and x540
+ * devices only.
+ *
+ * Thus return an error if API doesn't support RSS Random Key retrieval
+ * or if the operation is not supported for this device type.
+ */
+ if (hw->api_version != ixgbe_mbox_api_12 ||
+ hw->mac.type >= ixgbe_mac_X550_vf)
+ return -EOPNOTSUPP;
+
+ msgbuf[0] = IXGBE_VF_GET_RSS_KEY;
+ err = hw->mbx.ops.write_posted(hw, msgbuf, 1);
+
+ if (err)
+ return err;
+
+ err = hw->mbx.ops.read_posted(hw, msgbuf, 11);
+
+ if (err)
+ return err;
+
+ msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
+
+ /* If the operation has been refused by a PF return -EPERM */
+ if (msgbuf[0] == (IXGBE_VF_GET_RETA | IXGBE_VT_MSGTYPE_NACK))
+ return -EPERM;
+
+ /* If we didn't get an ACK there must have been
+ * some sort of mailbox error so we should treat it
+ * as such.
+ */
+ if (msgbuf[0] != (IXGBE_VF_GET_RSS_KEY | IXGBE_VT_MSGTYPE_ACK))
+ return IXGBE_ERR_MBX;
+
+ memcpy(rss_key, msgbuf + 1, IXGBEVF_RSS_HASH_KEY_SIZE);
+
+ return 0;
+}
+
/**
* ixgbevf_set_rar_vf - set device MAC address
* @hw: pointer to hardware structure
/* do nothing if API doesn't support ixgbevf_get_queues */
switch (hw->api_version) {
case ixgbe_mbox_api_11:
+ case ixgbe_mbox_api_12:
break;
default:
return 0;
int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api);
int ixgbevf_get_queues(struct ixgbe_hw *hw, unsigned int *num_tcs,
unsigned int *default_tc);
+int ixgbevf_get_reta_locked(struct ixgbe_hw *hw, u32 *reta, int num_rx_queues);
+int ixgbevf_get_rss_key_locked(struct ixgbe_hw *hw, u8 *rss_key);
#endif /* __IXGBE_VF_H__ */
__u32 linkstate;
__u32 min_tx_rate;
__u32 max_tx_rate;
+ __u32 rss_query_en;
};
#endif /* _LINUX_IF_LINK_H */
* int (*ndo_set_vf_link_state)(struct net_device *dev, int vf, int link_state);
* int (*ndo_set_vf_port)(struct net_device *dev, int vf,
* struct nlattr *port[]);
+ *
+ * Enable or disable the VF ability to query its RSS Redirection Table and
+ * Hash Key. This is needed since on some devices VF share this information
+ * with PF and querying it may adduce a theoretical security risk.
+ * int (*ndo_set_vf_rss_query_en)(struct net_device *dev, int vf, bool setting);
* int (*ndo_get_vf_port)(struct net_device *dev, int vf, struct sk_buff *skb);
* int (*ndo_setup_tc)(struct net_device *dev, u8 tc)
* Called to setup 'tc' number of traffic classes in the net device. This
struct nlattr *port[]);
int (*ndo_get_vf_port)(struct net_device *dev,
int vf, struct sk_buff *skb);
+ int (*ndo_set_vf_rss_query_en)(
+ struct net_device *dev,
+ int vf, bool setting);
int (*ndo_setup_tc)(struct net_device *dev, u8 tc);
#if IS_ENABLED(CONFIG_FCOE)
int (*ndo_fcoe_enable)(struct net_device *dev);
IFLA_VF_SPOOFCHK, /* Spoof Checking on/off switch */
IFLA_VF_LINK_STATE, /* link state enable/disable/auto switch */
IFLA_VF_RATE, /* Min and Max TX Bandwidth Allocation */
+ IFLA_VF_RSS_QUERY_EN, /* RSS Redirection Table and Hash Key query
+ * on/off switch
+ */
__IFLA_VF_MAX,
};
__u32 link_state;
};
+struct ifla_vf_rss_query_en {
+ __u32 vf;
+ __u32 setting;
+};
+
/* VF ports management section
*
* Nested layout of set/get msg is:
nla_total_size(sizeof(struct ifla_vf_vlan)) +
nla_total_size(sizeof(struct ifla_vf_spoofchk)) +
nla_total_size(sizeof(struct ifla_vf_rate)) +
- nla_total_size(sizeof(struct ifla_vf_link_state)));
+ nla_total_size(sizeof(struct ifla_vf_link_state)) +
+ nla_total_size(sizeof(struct ifla_vf_rss_query_en)));
return size;
} else
return 0;
struct ifla_vf_tx_rate vf_tx_rate;
struct ifla_vf_spoofchk vf_spoofchk;
struct ifla_vf_link_state vf_linkstate;
+ struct ifla_vf_rss_query_en vf_rss_query_en;
/*
* Not all SR-IOV capable drivers support the
- * spoofcheck query. Preset to -1 so the user
- * space tool can detect that the driver didn't
- * report anything.
+ * spoofcheck and "RSS query enable" query. Preset to
+ * -1 so the user space tool can detect that the driver
+ * didn't report anything.
*/
ivi.spoofchk = -1;
+ ivi.rss_query_en = -1;
memset(ivi.mac, 0, sizeof(ivi.mac));
/* The default value for VF link state is "auto"
* IFLA_VF_LINK_STATE_AUTO which equals zero
vf_rate.vf =
vf_tx_rate.vf =
vf_spoofchk.vf =
- vf_linkstate.vf = ivi.vf;
+ vf_linkstate.vf =
+ vf_rss_query_en.vf = ivi.vf;
memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
vf_vlan.vlan = ivi.vlan;
vf_rate.max_tx_rate = ivi.max_tx_rate;
vf_spoofchk.setting = ivi.spoofchk;
vf_linkstate.link_state = ivi.linkstate;
+ vf_rss_query_en.setting = ivi.rss_query_en;
vf = nla_nest_start(skb, IFLA_VF_INFO);
if (!vf) {
nla_nest_cancel(skb, vfinfo);
nla_put(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
&vf_spoofchk) ||
nla_put(skb, IFLA_VF_LINK_STATE, sizeof(vf_linkstate),
- &vf_linkstate))
+ &vf_linkstate) ||
+ nla_put(skb, IFLA_VF_RSS_QUERY_EN,
+ sizeof(vf_rss_query_en),
+ &vf_rss_query_en))
goto nla_put_failure;
nla_nest_end(skb, vf);
}
[IFLA_VF_SPOOFCHK] = { .len = sizeof(struct ifla_vf_spoofchk) },
[IFLA_VF_RATE] = { .len = sizeof(struct ifla_vf_rate) },
[IFLA_VF_LINK_STATE] = { .len = sizeof(struct ifla_vf_link_state) },
+ [IFLA_VF_RSS_QUERY_EN] = { .len = sizeof(struct ifla_vf_rss_query_en) },
};
static const struct nla_policy ifla_port_policy[IFLA_PORT_MAX+1] = {
ivl->link_state);
break;
}
+ case IFLA_VF_RSS_QUERY_EN: {
+ struct ifla_vf_rss_query_en *ivrssq_en;
+
+ ivrssq_en = nla_data(vf);
+ err = -EOPNOTSUPP;
+ if (ops->ndo_set_vf_rss_query_en)
+ err = ops->ndo_set_vf_rss_query_en(dev,
+ ivrssq_en->vf,
+ ivrssq_en->setting);
+ break;
+ }
default:
err = -EINVAL;
break;
projects / firefly-linux-kernel-4.4.55.git / commitdiff