From 9d3d76447a734210e7a01a4f62e0f95a9f9c4a79 Mon Sep 17 00:00:00 2001 From: Ahmed Zaki Date: Tue, 12 Dec 2023 17:33:15 -0700 Subject: [PATCH 1/6] net: ethtool: get rid of get/set_rxfh_context functions ANBZ: #23529 commit dcd8dbf9e734eb334113ea43186c1c26e9f497bb upstream Add the RSS context parameters to struct ethtool_rxfh_param and use the get/set_rxfh to handle the RSS contexts as well. This is part 2/2 of the fix suggested in [1]: - Add a rss_context member to the argument struct and a capability like cap_link_lanes_supported to indicate whether driver supports rss contexts, then you can remove *et_rxfh_context functions, and instead call *et_rxfh() with a non-zero rss_context. Link: https://lore.kernel.org/netdev/20231121152906.2dd5f487@kernel.org/ [1] CC: Jesse Brandeburg CC: Tony Nguyen CC: Marcin Wojtas CC: Russell King CC: Sunil Goutham CC: Geetha sowjanya CC: Subbaraya Sundeep CC: hariprasad CC: Saeed Mahameed CC: Leon Romanovsky CC: Edward Cree CC: Martin Habets Suggested-by: Jakub Kicinski Signed-off-by: Ahmed Zaki Link: https://lore.kernel.org/r/20231213003321.605376-3-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski Signed-off-by: Bitao Hu --- drivers/net/ethernet/intel/ice/ice_ethtool.c | 29 ++--- .../net/ethernet/marvell/mvpp2/mvpp2_main.c | 63 +++------- .../marvell/octeontx2/nic/otx2_ethtool.c | 63 ++++------ .../ethernet/mellanox/mlx5/core/en_ethtool.c | 37 ++---- drivers/net/ethernet/sfc/ef100_ethtool.c | 3 +- drivers/net/ethernet/sfc/ethtool.c | 3 +- drivers/net/ethernet/sfc/ethtool_common.c | 115 +++++++++--------- drivers/net/ethernet/sfc/ethtool_common.h | 6 - drivers/net/ethernet/sfc/siena/ethtool.c | 3 +- .../net/ethernet/sfc/siena/ethtool_common.c | 115 +++++++++--------- .../net/ethernet/sfc/siena/ethtool_common.h | 6 - include/linux/ethtool.h | 26 ++-- net/ethtool/ioctl.c | 27 ++-- net/ethtool/rss.c | 9 +- 14 files changed, 205 insertions(+), 300 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index fed57cbc4708..aa6410b317c5 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -3112,11 +3112,18 @@ static u32 ice_get_rxfh_indir_size(struct net_device *netdev) return np->vsi->rss_table_size; } +/** + * ice_get_rxfh - get the Rx flow hash indirection table + * @netdev: network interface device structure + * @rxfh: pointer to param struct (indir, key, hfunc) + * + * Reads the indirection table directly from the hardware. + */ static int -ice_get_rxfh_context(struct net_device *netdev, - struct ethtool_rxfh_param *rxfh, u32 rss_context) +ice_get_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh) { struct ice_netdev_priv *np = netdev_priv(netdev); + u32 rss_context = rxfh->rss_context; struct ice_vsi *vsi = np->vsi; struct ice_pf *pf = vsi->back; u16 qcount, offset; @@ -3178,19 +3185,6 @@ ice_get_rxfh_context(struct net_device *netdev, return err; } -/** - * ice_get_rxfh - get the Rx flow hash indirection table - * @netdev: network interface device structure - * @rxfh: pointer to param struct (indir, key, hfunc) - * - * Reads the indirection table directly from the hardware. - */ -static int -ice_get_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh) -{ - return ice_get_rxfh_context(netdev, rxfh, 0); -} - /** * ice_set_rxfh - set the Rx flow hash indirection table * @netdev: network interface device structure @@ -3215,6 +3209,9 @@ ice_set_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh, rxfh->hfunc != ETH_RSS_HASH_TOP) return -EOPNOTSUPP; + if (rxfh->rss_context) + return -EOPNOTSUPP; + if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { /* RSS not supported return error here */ netdev_warn(netdev, "RSS is not configured on this VSI!\n"); @@ -4117,6 +4114,7 @@ ice_get_module_eeprom(struct net_device *netdev, } static const struct ethtool_ops ice_ethtool_ops = { + .cap_rss_ctx_supported = true, .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_USE_ADAPTIVE | ETHTOOL_COALESCE_RX_USECS_HIGH, @@ -4150,7 +4148,6 @@ static const struct ethtool_ops ice_ethtool_ops = { .set_pauseparam = ice_set_pauseparam, .get_rxfh_key_size = ice_get_rxfh_key_size, .get_rxfh_indir_size = ice_get_rxfh_indir_size, - .get_rxfh_context = ice_get_rxfh_context, .get_rxfh = ice_get_rxfh, .set_rxfh = ice_set_rxfh, .get_channels = ice_get_channels, diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index d6277ddaddbf..b524d41f9e77 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -5666,47 +5666,7 @@ static int mvpp2_ethtool_get_rxfh(struct net_device *dev, struct ethtool_rxfh_param *rxfh) { struct mvpp2_port *port = netdev_priv(dev); - int ret = 0; - - if (!mvpp22_rss_is_supported(port)) - return -EOPNOTSUPP; - - if (rxfh->indir) - ret = mvpp22_port_rss_ctx_indir_get(port, 0, rxfh->indir); - - rxfh->hfunc = ETH_RSS_HASH_CRC32; - - return ret; -} - -static int mvpp2_ethtool_set_rxfh(struct net_device *dev, - struct ethtool_rxfh_param *rxfh, - struct netlink_ext_ack *extack) -{ - struct mvpp2_port *port = netdev_priv(dev); - int ret = 0; - - if (!mvpp22_rss_is_supported(port)) - return -EOPNOTSUPP; - - if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && - rxfh->hfunc != ETH_RSS_HASH_CRC32) - return -EOPNOTSUPP; - - if (rxfh->key) - return -EOPNOTSUPP; - - if (rxfh->indir) - ret = mvpp22_port_rss_ctx_indir_set(port, 0, rxfh->indir); - - return ret; -} - -static int mvpp2_ethtool_get_rxfh_context(struct net_device *dev, - struct ethtool_rxfh_param *rxfh, - u32 rss_context) -{ - struct mvpp2_port *port = netdev_priv(dev); + u32 rss_context = rxfh->rss_context; int ret = 0; if (!mvpp22_rss_is_supported(port)) @@ -5723,12 +5683,13 @@ static int mvpp2_ethtool_get_rxfh_context(struct net_device *dev, return ret; } -static int mvpp2_ethtool_set_rxfh_context(struct net_device *dev, - struct ethtool_rxfh_param *rxfh, - u32 *rss_context, bool delete) +static int mvpp2_ethtool_set_rxfh(struct net_device *dev, + struct ethtool_rxfh_param *rxfh, + struct netlink_ext_ack *extack) { struct mvpp2_port *port = netdev_priv(dev); - int ret; + u32 *rss_context = &rxfh->rss_context; + int ret = 0; if (!mvpp22_rss_is_supported(port)) return -EOPNOTSUPP; @@ -5740,7 +5701,7 @@ static int mvpp2_ethtool_set_rxfh_context(struct net_device *dev, if (rxfh->key) return -EOPNOTSUPP; - if (delete) + if (*rss_context && rxfh->rss_delete) return mvpp22_port_rss_ctx_delete(port, *rss_context); if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { @@ -5749,8 +5710,13 @@ static int mvpp2_ethtool_set_rxfh_context(struct net_device *dev, return ret; } - return mvpp22_port_rss_ctx_indir_set(port, *rss_context, rxfh->indir); + if (rxfh->indir) + ret = mvpp22_port_rss_ctx_indir_set(port, *rss_context, + rxfh->indir); + + return ret; } + /* Device ops */ static const struct net_device_ops mvpp2_netdev_ops = { @@ -5770,6 +5736,7 @@ static const struct net_device_ops mvpp2_netdev_ops = { }; static const struct ethtool_ops mvpp2_eth_tool_ops = { + .cap_rss_ctx_supported = true, .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_MAX_FRAMES, .nway_reset = mvpp2_ethtool_nway_reset, @@ -5792,8 +5759,6 @@ static const struct ethtool_ops mvpp2_eth_tool_ops = { .get_rxfh_indir_size = mvpp2_ethtool_get_rxfh_indir_size, .get_rxfh = mvpp2_ethtool_get_rxfh, .set_rxfh = mvpp2_ethtool_set_rxfh, - .get_rxfh_context = mvpp2_ethtool_get_rxfh_context, - .set_rxfh_context = mvpp2_ethtool_set_rxfh_context, }; /* Used for PPv2.1, or PPv2.2 with the old Device Tree binding that diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c index 62d16525e73b..dd754468f52d 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c @@ -839,11 +839,12 @@ static int otx2_rss_ctx_create(struct otx2_nic *pfvf, return 0; } -/* RSS context configuration */ -static int otx2_set_rxfh_context(struct net_device *dev, - struct ethtool_rxfh_param *rxfh, - u32 *rss_context, bool delete) +/* Configure RSS table and hash key */ +static int otx2_set_rxfh(struct net_device *dev, + struct ethtool_rxfh_param *rxfh, + struct netlink_ext_ack *extack) { + u32 rss_context = DEFAULT_RSS_CONTEXT_GROUP; struct otx2_nic *pfvf = netdev_priv(dev); struct otx2_rss_ctx *rss_ctx; struct otx2_rss_info *rss; @@ -853,8 +854,11 @@ static int otx2_set_rxfh_context(struct net_device *dev, rxfh->hfunc != ETH_RSS_HASH_TOP) return -EOPNOTSUPP; - if (*rss_context != ETH_RXFH_CONTEXT_ALLOC && - *rss_context >= MAX_RSS_GROUPS) + if (rxfh->rss_context) + rss_context = rxfh->rss_context; + + if (rss_context != ETH_RXFH_CONTEXT_ALLOC && + rss_context >= MAX_RSS_GROUPS) return -EINVAL; rss = &pfvf->hw.rss_info; @@ -868,28 +872,30 @@ static int otx2_set_rxfh_context(struct net_device *dev, memcpy(rss->key, rxfh->key, sizeof(rss->key)); otx2_set_rss_key(pfvf); } - if (delete) - return otx2_rss_ctx_delete(pfvf, *rss_context); + if (rxfh->rss_delete) + return otx2_rss_ctx_delete(pfvf, rss_context); - if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { - ret = otx2_rss_ctx_create(pfvf, rss_context); + if (rss_context == ETH_RXFH_CONTEXT_ALLOC) { + ret = otx2_rss_ctx_create(pfvf, &rss_context); + rxfh->rss_context = rss_context; if (ret) return ret; } if (rxfh->indir) { - rss_ctx = rss->rss_ctx[*rss_context]; + rss_ctx = rss->rss_ctx[rss_context]; for (idx = 0; idx < rss->rss_size; idx++) rss_ctx->ind_tbl[idx] = rxfh->indir[idx]; } - otx2_set_rss_table(pfvf, *rss_context); + otx2_set_rss_table(pfvf, rss_context); return 0; } -static int otx2_get_rxfh_context(struct net_device *dev, - struct ethtool_rxfh_param *rxfh, - u32 rss_context) +/* Get RSS configuration */ +static int otx2_get_rxfh(struct net_device *dev, + struct ethtool_rxfh_param *rxfh) { + u32 rss_context = DEFAULT_RSS_CONTEXT_GROUP; struct otx2_nic *pfvf = netdev_priv(dev); struct otx2_rss_ctx *rss_ctx; struct otx2_rss_info *rss; @@ -899,6 +905,8 @@ static int otx2_get_rxfh_context(struct net_device *dev, rss = &pfvf->hw.rss_info; rxfh->hfunc = ETH_RSS_HASH_TOP; + if (rxfh->rss_context) + rss_context = rxfh->rss_context; if (!indir) return 0; @@ -926,25 +934,6 @@ static int otx2_get_rxfh_context(struct net_device *dev, return 0; } -/* Get RSS configuration */ -static int otx2_get_rxfh(struct net_device *dev, - struct ethtool_rxfh_param *rxfh) -{ - return otx2_get_rxfh_context(dev, rxfh, - DEFAULT_RSS_CONTEXT_GROUP); -} - -/* Configure RSS table and hash key */ -static int otx2_set_rxfh(struct net_device *dev, - struct ethtool_rxfh_param *rxfh, - struct netlink_ext_ack *extack) -{ - - u32 rss_context = DEFAULT_RSS_CONTEXT_GROUP; - - return otx2_set_rxfh_context(dev, rxfh, &rss_context, 0); -} - static u32 otx2_get_msglevel(struct net_device *netdev) { struct otx2_nic *pfvf = netdev_priv(netdev); @@ -1330,6 +1319,7 @@ static void otx2_get_fec_stats(struct net_device *netdev, } static const struct ethtool_ops otx2_ethtool_ops = { + .cap_rss_ctx_supported = true, .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_MAX_FRAMES | ETHTOOL_COALESCE_USE_ADAPTIVE, @@ -1352,8 +1342,6 @@ static const struct ethtool_ops otx2_ethtool_ops = { .get_rxfh_indir_size = otx2_get_rxfh_indir_size, .get_rxfh = otx2_get_rxfh, .set_rxfh = otx2_set_rxfh, - .get_rxfh_context = otx2_get_rxfh_context, - .set_rxfh_context = otx2_set_rxfh_context, .get_msglevel = otx2_get_msglevel, .set_msglevel = otx2_set_msglevel, .get_pauseparam = otx2_get_pauseparam, @@ -1453,6 +1441,7 @@ static int otx2vf_get_link_ksettings(struct net_device *netdev, } static const struct ethtool_ops otx2vf_ethtool_ops = { + .cap_rss_ctx_supported = true, .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_MAX_FRAMES | ETHTOOL_COALESCE_USE_ADAPTIVE, @@ -1471,8 +1460,6 @@ static const struct ethtool_ops otx2vf_ethtool_ops = { .get_rxfh_indir_size = otx2_get_rxfh_indir_size, .get_rxfh = otx2_get_rxfh, .set_rxfh = otx2_set_rxfh, - .get_rxfh_context = otx2_get_rxfh_context, - .set_rxfh_context = otx2_set_rxfh_context, .get_ringparam = otx2_get_ringparam, .set_ringparam = otx2_set_ringparam, .get_coalesce = otx2_get_coalesce, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 15cfae4d4afe..67d68d0b5484 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -1277,11 +1277,10 @@ static u32 mlx5e_get_rxfh_indir_size(struct net_device *netdev) return mlx5e_ethtool_get_rxfh_indir_size(priv); } -static int mlx5e_get_rxfh_context(struct net_device *dev, - struct ethtool_rxfh_param *rxfh, - u32 rss_context) +int mlx5e_get_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh) { - struct mlx5e_priv *priv = netdev_priv(dev); + struct mlx5e_priv *priv = netdev_priv(netdev); + u32 rss_context = rxfh->rss_context; int err; mutex_lock(&priv->state_lock); @@ -1291,16 +1290,16 @@ static int mlx5e_get_rxfh_context(struct net_device *dev, return err; } -static int mlx5e_set_rxfh_context(struct net_device *dev, - struct ethtool_rxfh_param *rxfh, - u32 *rss_context, bool delete) +int mlx5e_set_rxfh(struct net_device *dev, struct ethtool_rxfh_param *rxfh, + struct netlink_ext_ack *extack) { struct mlx5e_priv *priv = netdev_priv(dev); + u32 *rss_context = &rxfh->rss_context; u8 hfunc = rxfh->hfunc; int err; mutex_lock(&priv->state_lock); - if (delete) { + if (*rss_context && rxfh->rss_delete) { err = mlx5e_rx_res_rss_destroy(priv->rx_res, *rss_context); goto unlock; } @@ -1322,25 +1321,6 @@ static int mlx5e_set_rxfh_context(struct net_device *dev, return err; } -int mlx5e_get_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh) -{ - return mlx5e_get_rxfh_context(netdev, rxfh, 0); -} - -int mlx5e_set_rxfh(struct net_device *dev, struct ethtool_rxfh_param *rxfh, - struct netlink_ext_ack *extack) -{ - struct mlx5e_priv *priv = netdev_priv(dev); - u8 hfunc = rxfh->hfunc; - int err; - - mutex_lock(&priv->state_lock); - err = mlx5e_rx_res_rss_set_rxfh(priv->rx_res, 0, rxfh->indir, rxfh->key, - hfunc == ETH_RSS_HASH_NO_CHANGE ? NULL : &hfunc); - mutex_unlock(&priv->state_lock); - return err; -} - #define MLX5E_PFC_PREVEN_AUTO_TOUT_MSEC 100 #define MLX5E_PFC_PREVEN_TOUT_MAX_MSEC 8000 #define MLX5E_PFC_PREVEN_MINOR_PRECENT 85 @@ -2417,6 +2397,7 @@ static void mlx5e_get_rmon_stats(struct net_device *netdev, } const struct ethtool_ops mlx5e_ethtool_ops = { + .cap_rss_ctx_supported = true, .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_MAX_FRAMES | ETHTOOL_COALESCE_USE_ADAPTIVE | @@ -2439,8 +2420,6 @@ const struct ethtool_ops mlx5e_ethtool_ops = { .get_rxfh_indir_size = mlx5e_get_rxfh_indir_size, .get_rxfh = mlx5e_get_rxfh, .set_rxfh = mlx5e_set_rxfh, - .get_rxfh_context = mlx5e_get_rxfh_context, - .set_rxfh_context = mlx5e_set_rxfh_context, .get_rxnfc = mlx5e_get_rxnfc, .set_rxnfc = mlx5e_set_rxnfc, .get_tunable = mlx5e_get_tunable, diff --git a/drivers/net/ethernet/sfc/ef100_ethtool.c b/drivers/net/ethernet/sfc/ef100_ethtool.c index 702abbe59b76..cf55202b3a7b 100644 --- a/drivers/net/ethernet/sfc/ef100_ethtool.c +++ b/drivers/net/ethernet/sfc/ef100_ethtool.c @@ -37,6 +37,7 @@ ef100_ethtool_get_ringparam(struct net_device *net_dev, /* Ethtool options available */ const struct ethtool_ops ef100_ethtool_ops = { + .cap_rss_ctx_supported = true, .get_drvinfo = efx_ethtool_get_drvinfo, .get_msglevel = efx_ethtool_get_msglevel, .set_msglevel = efx_ethtool_set_msglevel, @@ -60,8 +61,6 @@ const struct ethtool_ops ef100_ethtool_ops = { .get_rxfh_key_size = efx_ethtool_get_rxfh_key_size, .get_rxfh = efx_ethtool_get_rxfh, .set_rxfh = efx_ethtool_set_rxfh, - .get_rxfh_context = efx_ethtool_get_rxfh_context, - .set_rxfh_context = efx_ethtool_set_rxfh_context, .get_module_info = efx_ethtool_get_module_info, .get_module_eeprom = efx_ethtool_get_module_eeprom, diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c index 364323599f7b..37c69c8d90b1 100644 --- a/drivers/net/ethernet/sfc/ethtool.c +++ b/drivers/net/ethernet/sfc/ethtool.c @@ -240,6 +240,7 @@ static int efx_ethtool_get_ts_info(struct net_device *net_dev, } const struct ethtool_ops efx_ethtool_ops = { + .cap_rss_ctx_supported = true, .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_USECS_IRQ | ETHTOOL_COALESCE_USE_ADAPTIVE_RX, @@ -269,8 +270,6 @@ const struct ethtool_ops efx_ethtool_ops = { .get_rxfh_key_size = efx_ethtool_get_rxfh_key_size, .get_rxfh = efx_ethtool_get_rxfh, .set_rxfh = efx_ethtool_set_rxfh, - .get_rxfh_context = efx_ethtool_get_rxfh_context, - .set_rxfh_context = efx_ethtool_set_rxfh_context, .get_ts_info = efx_ethtool_get_ts_info, .get_module_info = efx_ethtool_get_module_info, .get_module_eeprom = efx_ethtool_get_module_eeprom, diff --git a/drivers/net/ethernet/sfc/ethtool_common.c b/drivers/net/ethernet/sfc/ethtool_common.c index e32ae9038d9e..7d5e5db4eac5 100644 --- a/drivers/net/ethernet/sfc/ethtool_common.c +++ b/drivers/net/ethernet/sfc/ethtool_common.c @@ -1163,52 +1163,8 @@ u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev) return efx->type->rx_hash_key_size; } -int efx_ethtool_get_rxfh(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh) -{ - struct efx_nic *efx = efx_netdev_priv(net_dev); - int rc; - - rc = efx->type->rx_pull_rss_config(efx); - if (rc) - return rc; - - rxfh->hfunc = ETH_RSS_HASH_TOP; - if (rxfh->indir) - memcpy(rxfh->indir, efx->rss_context.rx_indir_table, - sizeof(efx->rss_context.rx_indir_table)); - if (rxfh->key) - memcpy(rxfh->key, efx->rss_context.rx_hash_key, - efx->type->rx_hash_key_size); - return 0; -} - -int efx_ethtool_set_rxfh(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh, - struct netlink_ext_ack *extack) -{ - struct efx_nic *efx = efx_netdev_priv(net_dev); - u32 *indir = rxfh->indir; - u8 *key = rxfh->key; - - /* Hash function is Toeplitz, cannot be changed */ - if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && - rxfh->hfunc != ETH_RSS_HASH_TOP) - return -EOPNOTSUPP; - if (!indir && !key) - return 0; - - if (!key) - key = efx->rss_context.rx_hash_key; - if (!indir) - indir = efx->rss_context.rx_indir_table; - - return efx->type->rx_push_rss_config(efx, true, indir, key); -} - -int efx_ethtool_get_rxfh_context(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh, - u32 rss_context) +static int efx_ethtool_get_rxfh_context(struct net_device *net_dev, + struct ethtool_rxfh_param *rxfh) { struct efx_nic *efx = efx_netdev_priv(net_dev); struct efx_rss_context *ctx; @@ -1218,7 +1174,7 @@ int efx_ethtool_get_rxfh_context(struct net_device *net_dev, return -EOPNOTSUPP; mutex_lock(&efx->rss_lock); - ctx = efx_find_rss_context_entry(efx, rss_context); + ctx = efx_find_rss_context_entry(efx, rxfh->rss_context); if (!ctx) { rc = -ENOENT; goto out_unlock; @@ -1239,11 +1195,35 @@ int efx_ethtool_get_rxfh_context(struct net_device *net_dev, return rc; } -int efx_ethtool_set_rxfh_context(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh, - u32 *rss_context, bool delete) +int efx_ethtool_get_rxfh(struct net_device *net_dev, + struct ethtool_rxfh_param *rxfh) { struct efx_nic *efx = efx_netdev_priv(net_dev); + int rc; + + if (rxfh->rss_context) + return efx_ethtool_get_rxfh_context(net_dev, rxfh); + + rc = efx->type->rx_pull_rss_config(efx); + if (rc) + return rc; + + rxfh->hfunc = ETH_RSS_HASH_TOP; + if (rxfh->indir) + memcpy(rxfh->indir, efx->rss_context.rx_indir_table, + sizeof(efx->rss_context.rx_indir_table)); + if (rxfh->key) + memcpy(rxfh->key, efx->rss_context.rx_hash_key, + efx->type->rx_hash_key_size); + return 0; +} + +static int efx_ethtool_set_rxfh_context(struct net_device *net_dev, + struct ethtool_rxfh_param *rxfh, + struct netlink_ext_ack *extack) +{ + struct efx_nic *efx = efx_netdev_priv(net_dev); + u32 *rss_context = &rxfh->rss_context; struct efx_rss_context *ctx; u32 *indir = rxfh->indir; bool allocated = false; @@ -1252,15 +1232,11 @@ int efx_ethtool_set_rxfh_context(struct net_device *net_dev, if (!efx->type->rx_push_rss_context_config) return -EOPNOTSUPP; - /* Hash function is Toeplitz, cannot be changed */ - if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && - rxfh->hfunc != ETH_RSS_HASH_TOP) - return -EOPNOTSUPP; mutex_lock(&efx->rss_lock); if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { - if (delete) { + if (rxfh->rss_delete) { /* alloc + delete == Nothing to do */ rc = -EINVAL; goto out_unlock; @@ -1283,7 +1259,7 @@ int efx_ethtool_set_rxfh_context(struct net_device *net_dev, } } - if (delete) { + if (rxfh->rss_delete) { /* delete this context */ rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL); if (!rc) @@ -1306,6 +1282,33 @@ int efx_ethtool_set_rxfh_context(struct net_device *net_dev, return rc; } +int efx_ethtool_set_rxfh(struct net_device *net_dev, + struct ethtool_rxfh_param *rxfh, + struct netlink_ext_ack *extack) +{ + struct efx_nic *efx = efx_netdev_priv(net_dev); + u32 *indir = rxfh->indir; + u8 *key = rxfh->key; + + /* Hash function is Toeplitz, cannot be changed */ + if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && + rxfh->hfunc != ETH_RSS_HASH_TOP) + return -EOPNOTSUPP; + + if (rxfh->rss_context) + return efx_ethtool_set_rxfh_context(net_dev, rxfh, extack); + + if (!indir && !key) + return 0; + + if (!key) + key = efx->rss_context.rx_hash_key; + if (!indir) + indir = efx->rss_context.rx_indir_table; + + return efx->type->rx_push_rss_config(efx, true, indir, key); +} + int efx_ethtool_reset(struct net_device *net_dev, u32 *flags) { struct efx_nic *efx = efx_netdev_priv(net_dev); diff --git a/drivers/net/ethernet/sfc/ethtool_common.h b/drivers/net/ethernet/sfc/ethtool_common.h index 384318ee1127..a680e5980213 100644 --- a/drivers/net/ethernet/sfc/ethtool_common.h +++ b/drivers/net/ethernet/sfc/ethtool_common.h @@ -49,12 +49,6 @@ int efx_ethtool_get_rxfh(struct net_device *net_dev, int efx_ethtool_set_rxfh(struct net_device *net_dev, struct ethtool_rxfh_param *rxfh, struct netlink_ext_ack *extack); -int efx_ethtool_get_rxfh_context(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh, - u32 rss_context); -int efx_ethtool_set_rxfh_context(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh, - u32 *rss_context, bool delete); int efx_ethtool_reset(struct net_device *net_dev, u32 *flags); int efx_ethtool_get_module_eeprom(struct net_device *net_dev, struct ethtool_eeprom *ee, diff --git a/drivers/net/ethernet/sfc/siena/ethtool.c b/drivers/net/ethernet/sfc/siena/ethtool.c index e4ec589216c1..14dd3893bdef 100644 --- a/drivers/net/ethernet/sfc/siena/ethtool.c +++ b/drivers/net/ethernet/sfc/siena/ethtool.c @@ -240,6 +240,7 @@ static int efx_ethtool_get_ts_info(struct net_device *net_dev, } const struct ethtool_ops efx_siena_ethtool_ops = { + .cap_rss_ctx_supported = true, .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_USECS_IRQ | ETHTOOL_COALESCE_USE_ADAPTIVE_RX, @@ -269,8 +270,6 @@ const struct ethtool_ops efx_siena_ethtool_ops = { .get_rxfh_key_size = efx_siena_ethtool_get_rxfh_key_size, .get_rxfh = efx_siena_ethtool_get_rxfh, .set_rxfh = efx_siena_ethtool_set_rxfh, - .get_rxfh_context = efx_siena_ethtool_get_rxfh_context, - .set_rxfh_context = efx_siena_ethtool_set_rxfh_context, .get_ts_info = efx_ethtool_get_ts_info, .get_module_info = efx_siena_ethtool_get_module_info, .get_module_eeprom = efx_siena_ethtool_get_module_eeprom, diff --git a/drivers/net/ethernet/sfc/siena/ethtool_common.c b/drivers/net/ethernet/sfc/siena/ethtool_common.c index 20b64e3521cb..5f0a8127e967 100644 --- a/drivers/net/ethernet/sfc/siena/ethtool_common.c +++ b/drivers/net/ethernet/sfc/siena/ethtool_common.c @@ -1164,52 +1164,8 @@ u32 efx_siena_ethtool_get_rxfh_key_size(struct net_device *net_dev) return efx->type->rx_hash_key_size; } -int efx_siena_ethtool_get_rxfh(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh) -{ - struct efx_nic *efx = netdev_priv(net_dev); - int rc; - - rc = efx->type->rx_pull_rss_config(efx); - if (rc) - return rc; - - rxfh->hfunc = ETH_RSS_HASH_TOP; - if (rxfh->indir) - memcpy(rxfh->indir, efx->rss_context.rx_indir_table, - sizeof(efx->rss_context.rx_indir_table)); - if (rxfh->key) - memcpy(rxfh->key, efx->rss_context.rx_hash_key, - efx->type->rx_hash_key_size); - return 0; -} - -int efx_siena_ethtool_set_rxfh(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh, - struct netlink_ext_ack *extack) -{ - struct efx_nic *efx = netdev_priv(net_dev); - u32 *indir = rxfh->indir; - u8 *key = rxfh->key; - - /* Hash function is Toeplitz, cannot be changed */ - if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && - rxfh->hfunc != ETH_RSS_HASH_TOP) - return -EOPNOTSUPP; - if (!indir && !key) - return 0; - - if (!key) - key = efx->rss_context.rx_hash_key; - if (!indir) - indir = efx->rss_context.rx_indir_table; - - return efx->type->rx_push_rss_config(efx, true, indir, key); -} - -int efx_siena_ethtool_get_rxfh_context(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh, - u32 rss_context) +static int efx_siena_ethtool_get_rxfh_context(struct net_device *net_dev, + struct ethtool_rxfh_param *rxfh) { struct efx_nic *efx = netdev_priv(net_dev); struct efx_rss_context *ctx; @@ -1219,7 +1175,7 @@ int efx_siena_ethtool_get_rxfh_context(struct net_device *net_dev, return -EOPNOTSUPP; mutex_lock(&efx->rss_lock); - ctx = efx_siena_find_rss_context_entry(efx, rss_context); + ctx = efx_siena_find_rss_context_entry(efx, rxfh->rss_context); if (!ctx) { rc = -ENOENT; goto out_unlock; @@ -1240,11 +1196,35 @@ int efx_siena_ethtool_get_rxfh_context(struct net_device *net_dev, return rc; } -int efx_siena_ethtool_set_rxfh_context(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh, - u32 *rss_context, bool delete) +int efx_siena_ethtool_get_rxfh(struct net_device *net_dev, + struct ethtool_rxfh_param *rxfh) { struct efx_nic *efx = netdev_priv(net_dev); + int rc; + + if (rxfh->rss_context) + return efx_siena_ethtool_get_rxfh_context(net_dev, rxfh); + + rc = efx->type->rx_pull_rss_config(efx); + if (rc) + return rc; + + rxfh->hfunc = ETH_RSS_HASH_TOP; + if (rxfh->indir) + memcpy(rxfh->indir, efx->rss_context.rx_indir_table, + sizeof(efx->rss_context.rx_indir_table)); + if (rxfh->key) + memcpy(rxfh->key, efx->rss_context.rx_hash_key, + efx->type->rx_hash_key_size); + return 0; +} + +static int efx_siena_ethtool_set_rxfh_context(struct net_device *net_dev, + struct ethtool_rxfh_param *rxfh, + struct netlink_ext_ack *extack) +{ + struct efx_nic *efx = netdev_priv(net_dev); + u32 *rss_context = &rxfh->rss_context; struct efx_rss_context *ctx; u32 *indir = rxfh->indir; bool allocated = false; @@ -1253,15 +1233,11 @@ int efx_siena_ethtool_set_rxfh_context(struct net_device *net_dev, if (!efx->type->rx_push_rss_context_config) return -EOPNOTSUPP; - /* Hash function is Toeplitz, cannot be changed */ - if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && - rxfh->hfunc != ETH_RSS_HASH_TOP) - return -EOPNOTSUPP; mutex_lock(&efx->rss_lock); if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { - if (delete) { + if (rxfh->rss_delete) { /* alloc + delete == Nothing to do */ rc = -EINVAL; goto out_unlock; @@ -1284,7 +1260,7 @@ int efx_siena_ethtool_set_rxfh_context(struct net_device *net_dev, } } - if (delete) { + if (rxfh->rss_delete) { /* delete this context */ rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL); if (!rc) @@ -1307,6 +1283,33 @@ int efx_siena_ethtool_set_rxfh_context(struct net_device *net_dev, return rc; } +int efx_siena_ethtool_set_rxfh(struct net_device *net_dev, + struct ethtool_rxfh_param *rxfh, + struct netlink_ext_ack *extack) +{ + struct efx_nic *efx = netdev_priv(net_dev); + u32 *indir = rxfh->indir; + u8 *key = rxfh->key; + + /* Hash function is Toeplitz, cannot be changed */ + if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && + rxfh->hfunc != ETH_RSS_HASH_TOP) + return -EOPNOTSUPP; + + if (rxfh->rss_context) + efx_siena_ethtool_set_rxfh_context(net_dev, rxfh, extack); + + if (!indir && !key) + return 0; + + if (!key) + key = efx->rss_context.rx_hash_key; + if (!indir) + indir = efx->rss_context.rx_indir_table; + + return efx->type->rx_push_rss_config(efx, true, indir, key); +} + int efx_siena_ethtool_reset(struct net_device *net_dev, u32 *flags) { struct efx_nic *efx = netdev_priv(net_dev); diff --git a/drivers/net/ethernet/sfc/siena/ethtool_common.h b/drivers/net/ethernet/sfc/siena/ethtool_common.h index 2f892f8eff70..d674bab0f65b 100644 --- a/drivers/net/ethernet/sfc/siena/ethtool_common.h +++ b/drivers/net/ethernet/sfc/siena/ethtool_common.h @@ -46,12 +46,6 @@ int efx_siena_ethtool_get_rxfh(struct net_device *net_dev, int efx_siena_ethtool_set_rxfh(struct net_device *net_dev, struct ethtool_rxfh_param *rxfh, struct netlink_ext_ack *extack); -int efx_siena_ethtool_get_rxfh_context(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh, - u32 rss_context); -int efx_siena_ethtool_set_rxfh_context(struct net_device *net_dev, - struct ethtool_rxfh_param *rxfh, - u32 *rss_context, bool delete); int efx_siena_ethtool_reset(struct net_device *net_dev, u32 *flags); int efx_siena_ethtool_get_module_eeprom(struct net_device *net_dev, struct ethtool_eeprom *ee, diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 09f9afe10754..76fd668e4fff 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -613,6 +613,12 @@ struct ethtool_mm_stats { * which may be zero. On GET (read from the driver), the size of the * hardware hash key. * @key: The hash key of size @key_size bytes. + * @rss_context: RSS context identifier. Context 0 is the default for normal + * traffic; other contexts can be referenced as the destination for RX flow + * classification rules. On SET, %ETH_RXFH_CONTEXT_ALLOC is used + * to allocate a new RSS context; on return this field will + * contain the ID of the newly allocated context. + * @rss_delete: Set to non-ZERO to remove the @rss_context context. */ struct ethtool_rxfh_param { u8 hfunc; @@ -620,12 +626,16 @@ struct ethtool_rxfh_param { u32 *indir; u32 key_size; u8 *key; + u32 rss_context; + u8 rss_delete; }; /** * struct ethtool_ops - optional netdev operations * @cap_link_lanes_supported: indicates if the driver supports lanes * parameter. + * @cap_rss_ctx_supported: indicates if the driver supports RSS + * contexts. * @supported_coalesce_params: supported types of interrupt coalescing. * @supported_ring_params: supported ring params. * @get_drvinfo: Report driver/device information. Modern drivers no @@ -722,15 +732,6 @@ struct ethtool_rxfh_param { * will remain unchanged. * Returns a negative error code or zero. An error code must be returned * if at least one unsupported change was requested. - * @get_rxfh_context: Get the contents of the RX flow hash indirection table, - * hash key, and/or hash function assiciated to the given rss context. - * Returns a negative error code or zero. - * @set_rxfh_context: Create, remove and configure RSS contexts. Allows setting - * the contents of the RX flow hash indirection table, hash key, and/or - * hash function associated to the given context. Arguments which are set - * to %NULL or zero will remain unchanged. - * Returns a negative error code or zero. An error code must be returned - * if at least one unsupported change was requested. * @get_channels: Get number of channels. * @set_channels: Set number of channels. Returns a negative error code or * zero. @@ -813,6 +814,7 @@ struct ethtool_rxfh_param { */ struct ethtool_ops { u32 cap_link_lanes_supported:1; + u32 cap_rss_ctx_supported:1; u32 supported_coalesce_params; u32 supported_ring_params; void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *); @@ -875,12 +877,6 @@ struct ethtool_ops { int (*get_rxfh)(struct net_device *, struct ethtool_rxfh_param *); int (*set_rxfh)(struct net_device *, struct ethtool_rxfh_param *, struct netlink_ext_ack *extack); - int (*get_rxfh_context)(struct net_device *, - struct ethtool_rxfh_param *, - u32 rss_context); - int (*set_rxfh_context)(struct net_device *, - struct ethtool_rxfh_param *, - u32 *rss_context, bool delete); void (*get_channels)(struct net_device *, struct ethtool_channels *); int (*set_channels)(struct net_device *, struct ethtool_channels *); int (*get_dump_flag)(struct net_device *, struct ethtool_dump *); diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c index b4287a536659..48ed0a74f722 100644 --- a/net/ethtool/ioctl.c +++ b/net/ethtool/ioctl.c @@ -1201,7 +1201,7 @@ static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev, if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd8[2] || rxfh.rsvd32) return -EINVAL; /* Most drivers don't handle rss_context, check it's 0 as well */ - if (rxfh.rss_context && !ops->get_rxfh_context) + if (rxfh.rss_context && !ops->cap_rss_ctx_supported) return -EOPNOTSUPP; rxfh.indir_size = rxfh_dev.indir_size; @@ -1225,11 +1225,9 @@ static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev, if (user_key_size) rxfh_dev.key = rss_config + indir_bytes; - if (rxfh.rss_context) - ret = dev->ethtool_ops->get_rxfh_context(dev, &rxfh_dev, - rxfh.rss_context); - else - ret = dev->ethtool_ops->get_rxfh(dev, &rxfh_dev); + rxfh_dev.rss_context = rxfh.rss_context; + + ret = dev->ethtool_ops->get_rxfh(dev, &rxfh_dev); if (ret) goto out; @@ -1257,7 +1255,6 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev, struct netlink_ext_ack *extack = NULL; struct ethtool_rxnfc rx_rings; struct ethtool_rxfh rxfh; - bool delete = false; u32 indir_bytes = 0; u8 *rss_config; int ret; @@ -1277,7 +1274,7 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev, if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd8[2] || rxfh.rsvd32) return -EINVAL; /* Most drivers don't handle rss_context, check it's 0 as well */ - if (rxfh.rss_context && !ops->set_rxfh_context) + if (rxfh.rss_context && !ops->cap_rss_ctx_supported) return -EOPNOTSUPP; /* If either indir, hash key or function is valid, proceed further. @@ -1327,7 +1324,7 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev, for (i = 0; i < dev_indir_size; i++) indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data); } else { - delete = true; + rxfh_dev.rss_delete = true; } } @@ -1343,21 +1340,17 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev, } rxfh_dev.hfunc = rxfh.hfunc; + rxfh_dev.rss_context = rxfh.rss_context; - if (rxfh.rss_context) - ret = ops->set_rxfh_context(dev, &rxfh_dev, - &rxfh.rss_context, delete); - else - ret = ops->set_rxfh(dev, &rxfh_dev, extack); - + ret = ops->set_rxfh(dev, &rxfh_dev, extack); if (ret) goto out; if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, rss_context), - &rxfh.rss_context, sizeof(rxfh.rss_context))) + &rxfh_dev.rss_context, sizeof(rxfh_dev.rss_context))) ret = -EFAULT; - if (!rxfh.rss_context) { + if (!rxfh_dev.rss_context) { /* indicate whether rxfh was set to default */ if (rxfh.indir_size == 0) dev->priv_flags &= ~IFF_RXFH_CONFIGURED; diff --git a/net/ethtool/rss.c b/net/ethtool/rss.c index 56fae7d5c0f7..efc9f4409e40 100644 --- a/net/ethtool/rss.c +++ b/net/ethtool/rss.c @@ -59,7 +59,7 @@ rss_prepare_data(const struct ethnl_req_info *req_base, return -EOPNOTSUPP; /* Some drivers don't handle rss_context */ - if (request->rss_context && !ops->get_rxfh_context) + if (request->rss_context && !ops->cap_rss_ctx_supported) return -EOPNOTSUPP; ret = ethnl_ops_begin(dev); @@ -90,12 +90,9 @@ rss_prepare_data(const struct ethnl_req_info *req_base, rxfh.indir = data->indir_table; rxfh.key_size = data->hkey_size; rxfh.key = data->hkey; + rxfh.rss_context = request->rss_context; - if (request->rss_context) - ret = ops->get_rxfh_context(dev, &rxfh, request->rss_context); - else - ret = ops->get_rxfh(dev, &rxfh); - + ret = ops->get_rxfh(dev, &rxfh); if (ret) goto out_ops; -- Gitee From afedd5d3a0211835410ba29616e8fb1d0aaaf217 Mon Sep 17 00:00:00 2001 From: Ahmed Zaki Date: Tue, 12 Dec 2023 17:33:16 -0700 Subject: [PATCH 2/6] net: ethtool: add support for symmetric-xor RSS hash ANBZ: #23529 commit 13e59344fb9d3c9d3acd138ae320b5b67b658694 upstream Symmetric RSS hash functions are beneficial in applications that monitor both Tx and Rx packets of the same flow (IDS, software firewalls, ..etc). Getting all traffic of the same flow on the same RX queue results in higher CPU cache efficiency. A NIC that supports "symmetric-xor" can achieve this RSS hash symmetry by XORing the source and destination fields and pass the values to the RSS hash algorithm. The user may request RSS hash symmetry for a specific algorithm, via: # ethtool -X eth0 hfunc symmetric-xor or turn symmetry off (asymmetric) by: # ethtool -X eth0 hfunc The specific fields for each flow type should then be specified as usual via: # ethtool -N|-U eth0 rx-flow-hash s|d|f|n Reviewed-by: Wojciech Drewek Signed-off-by: Ahmed Zaki Link: https://lore.kernel.org/r/20231213003321.605376-4-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski Signed-off-by: Bitao Hu --- Documentation/netlink/specs/ethtool.yaml | 4 +++ Documentation/networking/ethtool-netlink.rst | 6 +++- Documentation/networking/scaling.rst | 15 ++++++++++ include/linux/ethtool.h | 6 ++++ include/uapi/linux/ethtool.h | 13 ++++++++- include/uapi/linux/ethtool_netlink.h | 1 + net/ethtool/ioctl.c | 30 +++++++++++++++++--- net/ethtool/rss.c | 5 ++++ 8 files changed, 74 insertions(+), 6 deletions(-) diff --git a/Documentation/netlink/specs/ethtool.yaml b/Documentation/netlink/specs/ethtool.yaml index 9bf16d96d3f4..a9c468c3765d 100644 --- a/Documentation/netlink/specs/ethtool.yaml +++ b/Documentation/netlink/specs/ethtool.yaml @@ -945,6 +945,9 @@ attribute-sets: - name: hkey type: binary + - + name: input_xfrm + type: u32 - name: plca attributes: @@ -1637,6 +1640,7 @@ operations: - hfunc - indir - hkey + - input_xfrm dump: *rss-get-op - name: plca-get-cfg diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst index cd5406f495ba..d966ec48ae86 100644 --- a/Documentation/networking/ethtool-netlink.rst +++ b/Documentation/networking/ethtool-netlink.rst @@ -1776,12 +1776,16 @@ Kernel response contents: ``ETHTOOL_A_RSS_HFUNC`` u32 RSS hash func ``ETHTOOL_A_RSS_INDIR`` binary Indir table bytes ``ETHTOOL_A_RSS_HKEY`` binary Hash key bytes + ``ETHTOOL_A_RSS_INPUT_XFRM`` u32 RSS input data transformation ===================================== ====== ========================== ETHTOOL_A_RSS_HFUNC attribute is bitmap indicating the hash function being used. Current supported options are toeplitz, xor or crc32. -ETHTOOL_A_RSS_INDIR attribute returns RSS indrection table where each byte +ETHTOOL_A_RSS_INDIR attribute returns RSS indirection table where each byte indicates queue number. +ETHTOOL_A_RSS_INPUT_XFRM attribute is a bitmap indicating the type of +transformation applied to the input protocol fields before given to the RSS +hfunc. Current supported option is symmetric-xor. PLCA_GET_CFG ============ diff --git a/Documentation/networking/scaling.rst b/Documentation/networking/scaling.rst index 92c9fb46d6a2..544dba31a762 100644 --- a/Documentation/networking/scaling.rst +++ b/Documentation/networking/scaling.rst @@ -44,6 +44,21 @@ by masking out the low order seven bits of the computed hash for the packet (usually a Toeplitz hash), taking this number as a key into the indirection table and reading the corresponding value. +Some NICs support symmetric RSS hashing where, if the IP (source address, +destination address) and TCP/UDP (source port, destination port) tuples +are swapped, the computed hash is the same. This is beneficial in some +applications that monitor TCP/IP flows (IDS, firewalls, ...etc) and need +both directions of the flow to land on the same Rx queue (and CPU). The +"Symmetric-XOR" is a type of RSS algorithms that achieves this hash +symmetry by XORing the input source and destination fields of the IP +and/or L4 protocols. This, however, results in reduced input entropy and +could potentially be exploited. Specifically, the algorithm XORs the input +as follows:: + + # (SRC_IP ^ DST_IP, SRC_IP ^ DST_IP, SRC_PORT ^ DST_PORT, SRC_PORT ^ DST_PORT) + +The result is then fed to the underlying RSS algorithm. + Some advanced NICs allow steering packets to queues based on programmable filters. For example, webserver bound TCP port 80 packets can be directed to their own receive queue. Such “n-tuple” filters can diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 76fd668e4fff..eb20c8c30171 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -619,6 +619,8 @@ struct ethtool_mm_stats { * to allocate a new RSS context; on return this field will * contain the ID of the newly allocated context. * @rss_delete: Set to non-ZERO to remove the @rss_context context. + * @input_xfrm: Defines how the input data is transformed. Valid values are one + * of %RXH_XFRM_*. */ struct ethtool_rxfh_param { u8 hfunc; @@ -628,6 +630,7 @@ struct ethtool_rxfh_param { u8 *key; u32 rss_context; u8 rss_delete; + u8 input_xfrm; }; /** @@ -636,6 +639,8 @@ struct ethtool_rxfh_param { * parameter. * @cap_rss_ctx_supported: indicates if the driver supports RSS * contexts. + * @cap_rss_sym_xor_supported: indicates if the driver supports symmetric-xor + * RSS. * @supported_coalesce_params: supported types of interrupt coalescing. * @supported_ring_params: supported ring params. * @get_drvinfo: Report driver/device information. Modern drivers no @@ -815,6 +820,7 @@ struct ethtool_rxfh_param { struct ethtool_ops { u32 cap_link_lanes_supported:1; u32 cap_rss_ctx_supported:1; + u32 cap_rss_sym_xor_supported:1; u32 supported_coalesce_params; u32 supported_ring_params; void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *); diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h index 410bb75552ba..a9492a2dbaad 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -1312,6 +1312,8 @@ struct ethtool_rxfh_indir { * hardware hash key. * @hfunc: Defines the current RSS hash function used by HW (or to be set to). * Valid values are one of the %ETH_RSS_HASH_*. + * @input_xfrm: Defines how the input data is transformed. Valid values are one + * of %RXH_XFRM_*. * @rsvd8: Reserved for future use; see the note on reserved space. * @rsvd32: Reserved for future use; see the note on reserved space. * @rss_config: RX ring/queue index for each hash value i.e., indirection table @@ -1331,7 +1333,8 @@ struct ethtool_rxfh { __u32 indir_size; __u32 key_size; __u8 hfunc; - __u8 rsvd8[3]; + __u8 input_xfrm; + __u8 rsvd8[2]; __u32 rsvd32; __u32 rss_config[]; }; @@ -2038,6 +2041,14 @@ static inline int ethtool_validate_duplex(__u8 duplex) #define WOL_MODE_COUNT 8 +/* RSS hash function data + * XOR the corresponding source and destination fields of each specified + * protocol. Both copies of the XOR'ed fields are fed into the RSS and RXHASH + * calculation. Note that this XORing reduces the input set entropy and could + * be exploited to reduce the RSS queue spread. + */ +#define RXH_XFRM_SYM_XOR (1 << 0) + /* L2-L4 network traffic flow types */ #define TCP_V4_FLOW 0x01 /* hash or spec (tcp_ip4_spec) */ #define UDP_V4_FLOW 0x02 /* hash or spec (udp_ip4_spec) */ diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h index a86e08901380..c40cd4a041c0 100644 --- a/include/uapi/linux/ethtool_netlink.h +++ b/include/uapi/linux/ethtool_netlink.h @@ -930,6 +930,7 @@ enum { ETHTOOL_A_RSS_HFUNC, /* u32 */ ETHTOOL_A_RSS_INDIR, /* binary */ ETHTOOL_A_RSS_HKEY, /* binary */ + ETHTOOL_A_RSS_INPUT_XFRM, /* u32 */ __ETHTOOL_A_RSS_CNT, ETHTOOL_A_RSS_MAX = (__ETHTOOL_A_RSS_CNT - 1), diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c index 48ed0a74f722..7c1c6aa8c87d 100644 --- a/net/ethtool/ioctl.c +++ b/net/ethtool/ioctl.c @@ -972,18 +972,35 @@ static int ethtool_rxnfc_copy_to_user(void __user *useraddr, static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev, u32 cmd, void __user *useraddr) { + const struct ethtool_ops *ops = dev->ethtool_ops; + struct ethtool_rxfh_param rxfh = {}; struct ethtool_rxnfc info; size_t info_size = sizeof(info); int rc; - if (!dev->ethtool_ops->set_rxnfc) + if (!ops->set_rxnfc || !ops->get_rxfh) return -EOPNOTSUPP; rc = ethtool_rxnfc_copy_struct(cmd, &info, &info_size, useraddr); if (rc) return rc; - rc = dev->ethtool_ops->set_rxnfc(dev, &info); + rc = ops->get_rxfh(dev, &rxfh); + if (rc) + return rc; + + /* Sanity check: if symmetric-xor is set, then: + * 1 - no other fields besides IP src/dst and/or L4 src/dst + * 2 - If src is set, dst must also be set + */ + if ((rxfh.input_xfrm & RXH_XFRM_SYM_XOR) && + ((info.data & ~(RXH_IP_SRC | RXH_IP_DST | + RXH_L4_B_0_1 | RXH_L4_B_2_3)) || + (!!(info.data & RXH_IP_SRC) ^ !!(info.data & RXH_IP_DST)) || + (!!(info.data & RXH_L4_B_0_1) ^ !!(info.data & RXH_L4_B_2_3)))) + return -EINVAL; + + rc = ops->set_rxnfc(dev, &info); if (rc) return rc; @@ -1198,7 +1215,7 @@ static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev, user_key_size = rxfh.key_size; /* Check that reserved fields are 0 for now */ - if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd8[2] || rxfh.rsvd32) + if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd32) return -EINVAL; /* Most drivers don't handle rss_context, check it's 0 as well */ if (rxfh.rss_context && !ops->cap_rss_ctx_supported) @@ -1271,11 +1288,15 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev, return -EFAULT; /* Check that reserved fields are 0 for now */ - if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd8[2] || rxfh.rsvd32) + if (rxfh.rsvd8[0] || rxfh.rsvd8[1] || rxfh.rsvd32) return -EINVAL; /* Most drivers don't handle rss_context, check it's 0 as well */ if (rxfh.rss_context && !ops->cap_rss_ctx_supported) return -EOPNOTSUPP; + /* Check input data transformation capabilities */ + if ((rxfh.input_xfrm & RXH_XFRM_SYM_XOR) && + !ops->cap_rss_sym_xor_supported) + return -EOPNOTSUPP; /* If either indir, hash key or function is valid, proceed further. * Must request at least one change: indir size, hash key or function. @@ -1341,6 +1362,7 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev, rxfh_dev.hfunc = rxfh.hfunc; rxfh_dev.rss_context = rxfh.rss_context; + rxfh_dev.input_xfrm = rxfh.input_xfrm; ret = ops->set_rxfh(dev, &rxfh_dev, extack); if (ret) diff --git a/net/ethtool/rss.c b/net/ethtool/rss.c index efc9f4409e40..71679137eff2 100644 --- a/net/ethtool/rss.c +++ b/net/ethtool/rss.c @@ -13,6 +13,7 @@ struct rss_reply_data { u32 indir_size; u32 hkey_size; u32 hfunc; + u32 input_xfrm; u32 *indir_table; u8 *hkey; }; @@ -97,6 +98,7 @@ rss_prepare_data(const struct ethnl_req_info *req_base, goto out_ops; data->hfunc = rxfh.hfunc; + data->input_xfrm = rxfh.input_xfrm; out_ops: ethnl_ops_complete(dev); return ret; @@ -110,6 +112,7 @@ rss_reply_size(const struct ethnl_req_info *req_base, int len; len = nla_total_size(sizeof(u32)) + /* _RSS_HFUNC */ + nla_total_size(sizeof(u32)) + /* _RSS_INPUT_XFRM */ nla_total_size(sizeof(u32) * data->indir_size) + /* _RSS_INDIR */ nla_total_size(data->hkey_size); /* _RSS_HKEY */ @@ -124,6 +127,8 @@ rss_fill_reply(struct sk_buff *skb, const struct ethnl_req_info *req_base, if ((data->hfunc && nla_put_u32(skb, ETHTOOL_A_RSS_HFUNC, data->hfunc)) || + (data->input_xfrm && + nla_put_u32(skb, ETHTOOL_A_RSS_INPUT_XFRM, data->input_xfrm)) || (data->indir_size && nla_put(skb, ETHTOOL_A_RSS_INDIR, sizeof(u32) * data->indir_size, data->indir_table)) || -- Gitee From 54f80877428c9447e68ecc2f2fa130884885b3ce Mon Sep 17 00:00:00 2001 From: Qi Zhang Date: Tue, 12 Dec 2023 17:33:18 -0700 Subject: [PATCH 3/6] ice: refactor RSS configuration ANBZ: #23529 commit dc6e44c9d6d68e8aa5de78d15f43f93145719b72 upstream Refactor the driver to use a communication data structure for RSS config. To do so we introduce the new ice_rss_hash_cfg struct, and then pass it as an argument to several functions. Also introduce enum ice_rss_cfg_hdr_type to specify a more granular and flexible RSS configuration: ICE_RSS_OUTER_HEADERS - take outer layer as RSS input set ICE_RSS_INNER_HEADERS - take inner layer as RSS input set ICE_RSS_INNER_HEADERS_W_OUTER_IPV4 - take inner layer as RSS input set for packet with outer IPV4 ICE_RSS_INNER_HEADERS_W_OUTER_IPV6 - take inner layer as RSS input set for packet with outer IPV6 ICE_RSS_ANY_HEADERS - try with outer first then inner (same as the behaviour without this change) Finally, move the virtchnl_rss_algorithm enum to be with the other RSS related structures in the virtchnl.h file. There should be no functional change due to this patch. Reviewed-by: Wojciech Drewek Signed-off-by: Qi Zhang Co-developed-by: Jesse Brandeburg Signed-off-by: Jesse Brandeburg Co-developed-by: Ahmed Zaki Signed-off-by: Ahmed Zaki Link: https://lore.kernel.org/r/20231213003321.605376-6-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski Signed-off-by: Bitao Hu --- drivers/net/ethernet/intel/ice/ice_ethtool.c | 6 +- drivers/net/ethernet/intel/ice/ice_flow.c | 232 +++++++++++------- drivers/net/ethernet/intel/ice/ice_flow.h | 33 ++- drivers/net/ethernet/intel/ice/ice_lib.c | 100 +++----- drivers/net/ethernet/intel/ice/ice_virtchnl.c | 36 +-- include/linux/avf/virtchnl.h | 16 +- 6 files changed, 246 insertions(+), 177 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index aa6410b317c5..1d0101a22f11 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -2508,6 +2508,7 @@ static int ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) { struct ice_pf *pf = vsi->back; + struct ice_rss_hash_cfg cfg; struct device *dev; u64 hashed_flds; int status; @@ -2534,7 +2535,10 @@ ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) return -EINVAL; } - status = ice_add_rss_cfg(&pf->hw, vsi->idx, hashed_flds, hdrs); + cfg.hash_flds = hashed_flds; + cfg.addl_hdrs = hdrs; + cfg.hdr_type = ICE_RSS_ANY_HEADERS; + status = ice_add_rss_cfg(&pf->hw, vsi->idx, &cfg); if (status) { dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %d\n", vsi->vsi_num, status); diff --git a/drivers/net/ethernet/intel/ice/ice_flow.c b/drivers/net/ethernet/intel/ice/ice_flow.c index 85cca572c22a..ff76eaabfb69 100644 --- a/drivers/net/ethernet/intel/ice/ice_flow.c +++ b/drivers/net/ethernet/intel/ice/ice_flow.c @@ -1858,37 +1858,49 @@ int ice_flow_rem_vsi_prof(struct ice_hw *hw, u16 vsi_handle, u64 prof_id) /** * ice_flow_set_rss_seg_info - setup packet segments for RSS * @segs: pointer to the flow field segment(s) - * @hash_fields: fields to be hashed on for the segment(s) - * @flow_hdr: protocol header fields within a packet segment + * @seg_cnt: segment count + * @cfg: configure parameters * * Helper function to extract fields from hash bitmap and use flow * header value to set flow field segment for further use in flow * profile entry or removal. */ static int -ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u64 hash_fields, - u32 flow_hdr) +ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u8 seg_cnt, + const struct ice_rss_hash_cfg *cfg) { + struct ice_flow_seg_info *seg; u64 val; - u8 i; + u16 i; + + /* set inner most segment */ + seg = &segs[seg_cnt - 1]; - for_each_set_bit(i, (unsigned long *)&hash_fields, - ICE_FLOW_FIELD_IDX_MAX) - ice_flow_set_fld(segs, (enum ice_flow_field)i, + for_each_set_bit(i, (const unsigned long *)&cfg->hash_flds, + (u16)ICE_FLOW_FIELD_IDX_MAX) + ice_flow_set_fld(seg, (enum ice_flow_field)i, ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL, false); - ICE_FLOW_SET_HDRS(segs, flow_hdr); + ICE_FLOW_SET_HDRS(seg, cfg->addl_hdrs); - if (segs->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS & + /* set outer most header */ + if (cfg->hdr_type == ICE_RSS_INNER_HEADERS_W_OUTER_IPV4) + segs[ICE_RSS_OUTER_HEADERS].hdrs |= ICE_FLOW_SEG_HDR_IPV4 | + ICE_FLOW_SEG_HDR_IPV_OTHER; + else if (cfg->hdr_type == ICE_RSS_INNER_HEADERS_W_OUTER_IPV6) + segs[ICE_RSS_OUTER_HEADERS].hdrs |= ICE_FLOW_SEG_HDR_IPV6 | + ICE_FLOW_SEG_HDR_IPV_OTHER; + + if (seg->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS & ~ICE_FLOW_RSS_HDRS_INNER_MASK & ~ICE_FLOW_SEG_HDR_IPV_OTHER) return -EINVAL; - val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS); + val = (u64)(seg->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS); if (val && !is_power_of_2(val)) return -EIO; - val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS); + val = (u64)(seg->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS); if (val && !is_power_of_2(val)) return -EIO; @@ -1958,6 +1970,39 @@ int ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle) return status; } +/** + * ice_get_rss_hdr_type - get a RSS profile's header type + * @prof: RSS flow profile + */ +static enum ice_rss_cfg_hdr_type +ice_get_rss_hdr_type(struct ice_flow_prof *prof) +{ + if (prof->segs_cnt == ICE_FLOW_SEG_SINGLE) { + return ICE_RSS_OUTER_HEADERS; + } else if (prof->segs_cnt == ICE_FLOW_SEG_MAX) { + const struct ice_flow_seg_info *s; + + s = &prof->segs[ICE_RSS_OUTER_HEADERS]; + if (s->hdrs == ICE_FLOW_SEG_HDR_NONE) + return ICE_RSS_INNER_HEADERS; + if (s->hdrs & ICE_FLOW_SEG_HDR_IPV4) + return ICE_RSS_INNER_HEADERS_W_OUTER_IPV4; + if (s->hdrs & ICE_FLOW_SEG_HDR_IPV6) + return ICE_RSS_INNER_HEADERS_W_OUTER_IPV6; + } + + return ICE_RSS_ANY_HEADERS; +} + +static bool +ice_rss_match_prof(struct ice_rss_cfg *r, struct ice_flow_prof *prof, + enum ice_rss_cfg_hdr_type hdr_type) +{ + return (r->hash.hdr_type == hdr_type && + r->hash.hash_flds == prof->segs[prof->segs_cnt - 1].match && + r->hash.addl_hdrs == prof->segs[prof->segs_cnt - 1].hdrs); +} + /** * ice_rem_rss_list - remove RSS configuration from list * @hw: pointer to the hardware structure @@ -1969,15 +2014,16 @@ int ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle) static void ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) { + enum ice_rss_cfg_hdr_type hdr_type; struct ice_rss_cfg *r, *tmp; /* Search for RSS hash fields associated to the VSI that match the * hash configurations associated to the flow profile. If found * remove from the RSS entry list of the VSI context and delete entry. */ + hdr_type = ice_get_rss_hdr_type(prof); list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry) - if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match && - r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) { + if (ice_rss_match_prof(r, prof, hdr_type)) { clear_bit(vsi_handle, r->vsis); if (bitmap_empty(r->vsis, ICE_MAX_VSI)) { list_del(&r->l_entry); @@ -1998,11 +2044,12 @@ ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) static int ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) { + enum ice_rss_cfg_hdr_type hdr_type; struct ice_rss_cfg *r, *rss_cfg; + hdr_type = ice_get_rss_hdr_type(prof); list_for_each_entry(r, &hw->rss_list_head, l_entry) - if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match && - r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) { + if (ice_rss_match_prof(r, prof, hdr_type)) { set_bit(vsi_handle, r->vsis); return 0; } @@ -2012,8 +2059,9 @@ ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) if (!rss_cfg) return -ENOMEM; - rss_cfg->hashed_flds = prof->segs[prof->segs_cnt - 1].match; - rss_cfg->packet_hdr = prof->segs[prof->segs_cnt - 1].hdrs; + rss_cfg->hash.hash_flds = prof->segs[prof->segs_cnt - 1].match; + rss_cfg->hash.addl_hdrs = prof->segs[prof->segs_cnt - 1].hdrs; + rss_cfg->hash.hdr_type = hdr_type; set_bit(vsi_handle, rss_cfg->vsis); list_add_tail(&rss_cfg->l_entry, &hw->rss_list_head); @@ -2022,54 +2070,55 @@ ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) } #define ICE_FLOW_PROF_HASH_S 0 -#define ICE_FLOW_PROF_HASH_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HASH_S) +#define ICE_FLOW_PROF_HASH_M GENMASK_ULL(31, 0) #define ICE_FLOW_PROF_HDR_S 32 -#define ICE_FLOW_PROF_HDR_M (0x3FFFFFFFULL << ICE_FLOW_PROF_HDR_S) -#define ICE_FLOW_PROF_ENCAP_S 63 -#define ICE_FLOW_PROF_ENCAP_M (BIT_ULL(ICE_FLOW_PROF_ENCAP_S)) - -#define ICE_RSS_OUTER_HEADERS 1 -#define ICE_RSS_INNER_HEADERS 2 +#define ICE_FLOW_PROF_HDR_M GENMASK_ULL(61, 32) +#define ICE_FLOW_PROF_ENCAP_S 62 +#define ICE_FLOW_PROF_ENCAP_M GENMASK_ULL(63, 62) /* Flow profile ID format: * [0:31] - Packet match fields - * [32:62] - Protocol header - * [63] - Encapsulation flag, 0 if non-tunneled, 1 if tunneled + * [32:61] - Protocol header + * [62:63] - Encapsulation flag: + * 0 if non-tunneled + * 1 if tunneled + * 2 for tunneled with outer ipv4 + * 3 for tunneled with outer ipv6 */ -#define ICE_FLOW_GEN_PROFID(hash, hdr, segs_cnt) \ - ((u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \ +#define ICE_FLOW_GEN_PROFID(hash, hdr, encap) \ + ((u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \ (((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M) | \ - ((u8)((segs_cnt) - 1) ? ICE_FLOW_PROF_ENCAP_M : 0))) + (((u64)(encap) << ICE_FLOW_PROF_ENCAP_S) & \ + ICE_FLOW_PROF_ENCAP_M))) /** * ice_add_rss_cfg_sync - add an RSS configuration * @hw: pointer to the hardware structure * @vsi_handle: software VSI handle - * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure - * @addl_hdrs: protocol header fields - * @segs_cnt: packet segment count + * @cfg: configure parameters * * Assumption: lock has already been acquired for RSS list */ static int -ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, - u32 addl_hdrs, u8 segs_cnt) +ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) { const enum ice_block blk = ICE_BLK_RSS; struct ice_flow_prof *prof = NULL; struct ice_flow_seg_info *segs; + u8 segs_cnt; int status; - if (!segs_cnt || segs_cnt > ICE_FLOW_SEG_MAX) - return -EINVAL; + segs_cnt = (cfg->hdr_type == ICE_RSS_OUTER_HEADERS) ? + ICE_FLOW_SEG_SINGLE : + ICE_FLOW_SEG_MAX; segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL); if (!segs) return -ENOMEM; /* Construct the packet segment info from the hashed fields */ - status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], hashed_flds, - addl_hdrs); + status = ice_flow_set_rss_seg_info(segs, segs_cnt, cfg); if (status) goto exit; @@ -2123,9 +2172,9 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, * segment information. */ status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX, - ICE_FLOW_GEN_PROFID(hashed_flds, + ICE_FLOW_GEN_PROFID(cfg->hash_flds, segs[segs_cnt - 1].hdrs, - segs_cnt), + cfg->hdr_type), segs, segs_cnt, &prof); if (status) goto exit; @@ -2150,29 +2199,37 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, * ice_add_rss_cfg - add an RSS configuration with specified hashed fields * @hw: pointer to the hardware structure * @vsi_handle: software VSI handle - * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure - * @addl_hdrs: protocol header fields + * @cfg: configure parameters * * This function will generate a flow profile based on fields associated with * the input fields to hash on, the flow type and use the VSI number to add * a flow entry to the profile. */ int -ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, - u32 addl_hdrs) +ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) { + struct ice_rss_hash_cfg local_cfg; int status; - if (hashed_flds == ICE_HASH_INVALID || - !ice_is_vsi_valid(hw, vsi_handle)) + if (!ice_is_vsi_valid(hw, vsi_handle) || !cfg || + cfg->hdr_type > ICE_RSS_ANY_HEADERS || + cfg->hash_flds == ICE_HASH_INVALID) return -EINVAL; mutex_lock(&hw->rss_locks); - status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs, - ICE_RSS_OUTER_HEADERS); - if (!status) - status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, - addl_hdrs, ICE_RSS_INNER_HEADERS); + local_cfg = *cfg; + if (cfg->hdr_type < ICE_RSS_ANY_HEADERS) { + status = ice_add_rss_cfg_sync(hw, vsi_handle, &local_cfg); + } else { + local_cfg.hdr_type = ICE_RSS_OUTER_HEADERS; + status = ice_add_rss_cfg_sync(hw, vsi_handle, &local_cfg); + if (!status) { + local_cfg.hdr_type = ICE_RSS_INNER_HEADERS; + status = ice_add_rss_cfg_sync(hw, vsi_handle, + &local_cfg); + } + } mutex_unlock(&hw->rss_locks); return status; @@ -2182,28 +2239,29 @@ ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, * ice_rem_rss_cfg_sync - remove an existing RSS configuration * @hw: pointer to the hardware structure * @vsi_handle: software VSI handle - * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove - * @addl_hdrs: Protocol header fields within a packet segment - * @segs_cnt: packet segment count + * @cfg: configure parameters * * Assumption: lock has already been acquired for RSS list */ static int -ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, - u32 addl_hdrs, u8 segs_cnt) +ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) { const enum ice_block blk = ICE_BLK_RSS; struct ice_flow_seg_info *segs; struct ice_flow_prof *prof; + u8 segs_cnt; int status; + segs_cnt = (cfg->hdr_type == ICE_RSS_OUTER_HEADERS) ? + ICE_FLOW_SEG_SINGLE : + ICE_FLOW_SEG_MAX; segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL); if (!segs) return -ENOMEM; /* Construct the packet segment info from the hashed fields */ - status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], hashed_flds, - addl_hdrs); + status = ice_flow_set_rss_seg_info(segs, segs_cnt, cfg); if (status) goto out; @@ -2236,31 +2294,39 @@ ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, * ice_rem_rss_cfg - remove an existing RSS config with matching hashed fields * @hw: pointer to the hardware structure * @vsi_handle: software VSI handle - * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove - * @addl_hdrs: Protocol header fields within a packet segment + * @cfg: configure parameters * * This function will lookup the flow profile based on the input * hash field bitmap, iterate through the profile entry list of * that profile and find entry associated with input VSI to be - * removed. Calls are made to underlying flow s which will APIs + * removed. Calls are made to underlying flow apis which will in * turn build or update buffers for RSS XLT1 section. */ -int __maybe_unused -ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, - u32 addl_hdrs) +int +ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) { + struct ice_rss_hash_cfg local_cfg; int status; - if (hashed_flds == ICE_HASH_INVALID || - !ice_is_vsi_valid(hw, vsi_handle)) + if (!ice_is_vsi_valid(hw, vsi_handle) || !cfg || + cfg->hdr_type > ICE_RSS_ANY_HEADERS || + cfg->hash_flds == ICE_HASH_INVALID) return -EINVAL; mutex_lock(&hw->rss_locks); - status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs, - ICE_RSS_OUTER_HEADERS); - if (!status) - status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, - addl_hdrs, ICE_RSS_INNER_HEADERS); + local_cfg = *cfg; + if (cfg->hdr_type < ICE_RSS_ANY_HEADERS) { + status = ice_rem_rss_cfg_sync(hw, vsi_handle, &local_cfg); + } else { + local_cfg.hdr_type = ICE_RSS_OUTER_HEADERS; + status = ice_rem_rss_cfg_sync(hw, vsi_handle, &local_cfg); + if (!status) { + local_cfg.hdr_type = ICE_RSS_INNER_HEADERS; + status = ice_rem_rss_cfg_sync(hw, vsi_handle, + &local_cfg); + } + } mutex_unlock(&hw->rss_locks); return status; @@ -2310,6 +2376,7 @@ ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, */ int ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash) { + struct ice_rss_hash_cfg hcfg; int status = 0; u64 hash_flds; @@ -2382,8 +2449,10 @@ int ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash) if (rss_hash == ICE_HASH_INVALID) return -EIO; - status = ice_add_rss_cfg(hw, vsi_handle, rss_hash, - ICE_FLOW_SEG_HDR_NONE); + hcfg.addl_hdrs = ICE_FLOW_SEG_HDR_NONE; + hcfg.hash_flds = rss_hash; + hcfg.hdr_type = ICE_RSS_ANY_HEADERS; + status = ice_add_rss_cfg(hw, vsi_handle, &hcfg); if (status) break; } @@ -2407,16 +2476,7 @@ int ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle) mutex_lock(&hw->rss_locks); list_for_each_entry(r, &hw->rss_list_head, l_entry) { if (test_bit(vsi_handle, r->vsis)) { - status = ice_add_rss_cfg_sync(hw, vsi_handle, - r->hashed_flds, - r->packet_hdr, - ICE_RSS_OUTER_HEADERS); - if (status) - break; - status = ice_add_rss_cfg_sync(hw, vsi_handle, - r->hashed_flds, - r->packet_hdr, - ICE_RSS_INNER_HEADERS); + status = ice_add_rss_cfg_sync(hw, vsi_handle, &r->hash); if (status) break; } @@ -2447,8 +2507,8 @@ u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs) mutex_lock(&hw->rss_locks); list_for_each_entry(r, &hw->rss_list_head, l_entry) if (test_bit(vsi_handle, r->vsis) && - r->packet_hdr == hdrs) { - rss_hash = r->hashed_flds; + r->hash.addl_hdrs == hdrs) { + rss_hash = r->hash.hash_flds; break; } mutex_unlock(&hw->rss_locks); diff --git a/drivers/net/ethernet/intel/ice/ice_flow.h b/drivers/net/ethernet/intel/ice/ice_flow.h index b465d27d9b80..7a1db1df760e 100644 --- a/drivers/net/ethernet/intel/ice/ice_flow.h +++ b/drivers/net/ethernet/intel/ice/ice_flow.h @@ -34,6 +34,8 @@ #define ICE_HASH_TCP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_TCP_PORT) #define ICE_HASH_UDP_IPV4 (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_UDP_PORT) #define ICE_HASH_UDP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_UDP_PORT) +#define ICE_HASH_SCTP_IPV4 (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_SCTP_PORT) +#define ICE_HASH_SCTP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_SCTP_PORT) #define ICE_FLOW_HASH_GTP_TEID \ (BIT_ULL(ICE_FLOW_FIELD_IDX_GTPC_TEID)) @@ -279,6 +281,23 @@ enum ice_flow_avf_hdr_field { BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \ BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP)) +enum ice_rss_cfg_hdr_type { + ICE_RSS_OUTER_HEADERS, /* take outer headers as inputset. */ + ICE_RSS_INNER_HEADERS, /* take inner headers as inputset. */ + /* take inner headers as inputset for packet with outer ipv4. */ + ICE_RSS_INNER_HEADERS_W_OUTER_IPV4, + /* take inner headers as inputset for packet with outer ipv6. */ + ICE_RSS_INNER_HEADERS_W_OUTER_IPV6, + /* take outer headers first then inner headers as inputset */ + ICE_RSS_ANY_HEADERS +}; + +struct ice_rss_hash_cfg { + u32 addl_hdrs; /* protocol header fields */ + u64 hash_flds; /* hash bit field (ICE_FLOW_HASH_*) to configure */ + enum ice_rss_cfg_hdr_type hdr_type; /* to specify inner or outer */ +}; + enum ice_flow_dir { ICE_FLOW_RX = 0x02, }; @@ -289,6 +308,7 @@ enum ice_flow_priority { ICE_FLOW_PRIO_HIGH }; +#define ICE_FLOW_SEG_SINGLE 1 #define ICE_FLOW_SEG_MAX 2 #define ICE_FLOW_SEG_RAW_FLD_MAX 2 #define ICE_FLOW_FV_EXTRACT_SZ 2 @@ -381,8 +401,7 @@ struct ice_rss_cfg { struct list_head l_entry; /* bitmap of VSIs added to the RSS entry */ DECLARE_BITMAP(vsis, ICE_MAX_VSI); - u64 hashed_flds; - u32 packet_hdr; + struct ice_rss_hash_cfg hash; }; int @@ -406,11 +425,9 @@ void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle); int ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle); int ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds); int ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle); -int -ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, - u32 addl_hdrs); -int -ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, - u32 addl_hdrs); +int ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg); +int ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg); u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs); #endif /* _ICE_FLOW_H_ */ diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 1fc4805353eb..63d0a749024a 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -1602,6 +1602,38 @@ static void ice_vsi_set_vf_rss_flow_fld(struct ice_vsi *vsi) vsi->vsi_num, status); } +static const struct ice_rss_hash_cfg default_rss_cfgs[] = { + /* configure RSS for IPv4 with input set IP src/dst */ + {ICE_FLOW_SEG_HDR_IPV4, ICE_FLOW_HASH_IPV4, ICE_RSS_ANY_HEADERS}, + /* configure RSS for IPv6 with input set IPv6 src/dst */ + {ICE_FLOW_SEG_HDR_IPV6, ICE_FLOW_HASH_IPV6, ICE_RSS_ANY_HEADERS}, + /* configure RSS for tcp4 with input set IP src/dst, TCP src/dst */ + {ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4, + ICE_HASH_TCP_IPV4, ICE_RSS_ANY_HEADERS}, + /* configure RSS for udp4 with input set IP src/dst, UDP src/dst */ + {ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4, + ICE_HASH_UDP_IPV4, ICE_RSS_ANY_HEADERS}, + /* configure RSS for sctp4 with input set IP src/dst - only support + * RSS on SCTPv4 on outer headers (non-tunneled) + */ + {ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4, + ICE_HASH_SCTP_IPV4, ICE_RSS_OUTER_HEADERS}, + /* configure RSS for tcp6 with input set IPv6 src/dst, TCP src/dst */ + {ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6, + ICE_HASH_TCP_IPV6, ICE_RSS_ANY_HEADERS}, + /* configure RSS for udp6 with input set IPv6 src/dst, UDP src/dst */ + {ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6, + ICE_HASH_UDP_IPV6, ICE_RSS_ANY_HEADERS}, + /* configure RSS for sctp6 with input set IPv6 src/dst - only support + * RSS on SCTPv6 on outer headers (non-tunneled) + */ + {ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6, + ICE_HASH_SCTP_IPV6, ICE_RSS_OUTER_HEADERS}, + /* configure RSS for IPSEC ESP SPI with input set MAC_IPV4_SPI */ + {ICE_FLOW_SEG_HDR_ESP, + ICE_FLOW_HASH_ESP_SPI, ICE_RSS_OUTER_HEADERS}, +}; + /** * ice_vsi_set_rss_flow_fld - Sets RSS input set for different flows * @vsi: VSI to be configured @@ -1620,6 +1652,7 @@ static void ice_vsi_set_rss_flow_fld(struct ice_vsi *vsi) struct ice_hw *hw = &pf->hw; struct device *dev; int status; + u32 i; dev = ice_pf_to_dev(pf); if (ice_is_safe_mode(pf)) { @@ -1627,67 +1660,14 @@ static void ice_vsi_set_rss_flow_fld(struct ice_vsi *vsi) vsi_num); return; } - /* configure RSS for IPv4 with input set IP src/dst */ - status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV4, - ICE_FLOW_SEG_HDR_IPV4); - if (status) - dev_dbg(dev, "ice_add_rss_cfg failed for ipv4 flow, vsi = %d, error = %d\n", - vsi_num, status); - - /* configure RSS for IPv6 with input set IPv6 src/dst */ - status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV6, - ICE_FLOW_SEG_HDR_IPV6); - if (status) - dev_dbg(dev, "ice_add_rss_cfg failed for ipv6 flow, vsi = %d, error = %d\n", - vsi_num, status); - - /* configure RSS for tcp4 with input set IP src/dst, TCP src/dst */ - status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_TCP_IPV4, - ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4); - if (status) - dev_dbg(dev, "ice_add_rss_cfg failed for tcp4 flow, vsi = %d, error = %d\n", - vsi_num, status); + for (i = 0; i < ARRAY_SIZE(default_rss_cfgs); i++) { + const struct ice_rss_hash_cfg *cfg = &default_rss_cfgs[i]; - /* configure RSS for udp4 with input set IP src/dst, UDP src/dst */ - status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_UDP_IPV4, - ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4); - if (status) - dev_dbg(dev, "ice_add_rss_cfg failed for udp4 flow, vsi = %d, error = %d\n", - vsi_num, status); - - /* configure RSS for sctp4 with input set IP src/dst */ - status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV4, - ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4); - if (status) - dev_dbg(dev, "ice_add_rss_cfg failed for sctp4 flow, vsi = %d, error = %d\n", - vsi_num, status); - - /* configure RSS for tcp6 with input set IPv6 src/dst, TCP src/dst */ - status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_TCP_IPV6, - ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6); - if (status) - dev_dbg(dev, "ice_add_rss_cfg failed for tcp6 flow, vsi = %d, error = %d\n", - vsi_num, status); - - /* configure RSS for udp6 with input set IPv6 src/dst, UDP src/dst */ - status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_UDP_IPV6, - ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6); - if (status) - dev_dbg(dev, "ice_add_rss_cfg failed for udp6 flow, vsi = %d, error = %d\n", - vsi_num, status); - - /* configure RSS for sctp6 with input set IPv6 src/dst */ - status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV6, - ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6); - if (status) - dev_dbg(dev, "ice_add_rss_cfg failed for sctp6 flow, vsi = %d, error = %d\n", - vsi_num, status); - - status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_ESP_SPI, - ICE_FLOW_SEG_HDR_ESP); - if (status) - dev_dbg(dev, "ice_add_rss_cfg failed for esp/spi flow, vsi = %d, error = %d\n", - vsi_num, status); + status = ice_add_rss_cfg(hw, vsi_handle, cfg); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed, addl_hdrs = %x, hash_flds = %llx, hdr_type = %d\n", + cfg->addl_hdrs, cfg->hash_flds, cfg->hdr_type); + } } /** diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c index e709b10a2976..b33f457af7f9 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c @@ -675,9 +675,7 @@ ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto) * a specific virtchnl RSS cfg * @hw: pointer to the hardware * @rss_cfg: pointer to the virtchnl RSS cfg - * @addl_hdrs: pointer to the protocol header fields (ICE_FLOW_SEG_HDR_*) - * to configure - * @hash_flds: pointer to the hash bit fields (ICE_FLOW_HASH_*) to configure + * @hash_cfg: pointer to the HW hash configuration * * Return true if all the protocol header and hash fields in the RSS cfg could * be parsed, else return false @@ -685,13 +683,18 @@ ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto) * This function parses the virtchnl RSS cfg to be the intended * hash fields and the intended header for RSS configuration */ -static bool -ice_vc_parse_rss_cfg(struct ice_hw *hw, struct virtchnl_rss_cfg *rss_cfg, - u32 *addl_hdrs, u64 *hash_flds) +static bool ice_vc_parse_rss_cfg(struct ice_hw *hw, + struct virtchnl_rss_cfg *rss_cfg, + struct ice_rss_hash_cfg *hash_cfg) { const struct ice_vc_hash_field_match_type *hf_list; const struct ice_vc_hdr_match_type *hdr_list; int i, hf_list_len, hdr_list_len; + u32 *addl_hdrs = &hash_cfg->addl_hdrs; + u64 *hash_flds = &hash_cfg->hash_flds; + + /* set outer layer RSS as default */ + hash_cfg->hdr_type = ICE_RSS_OUTER_HEADERS; hf_list = ice_vc_hash_field_list; hf_list_len = ARRAY_SIZE(ice_vc_hash_field_list); @@ -842,18 +845,24 @@ static int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add) kfree(ctx); } else { - u32 addl_hdrs = ICE_FLOW_SEG_HDR_NONE; - u64 hash_flds = ICE_HASH_INVALID; + struct ice_rss_hash_cfg cfg; + + /* Only check for none raw pattern case */ + if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + cfg.addl_hdrs = ICE_FLOW_SEG_HDR_NONE; + cfg.hash_flds = ICE_HASH_INVALID; + cfg.hdr_type = ICE_RSS_ANY_HEADERS; - if (!ice_vc_parse_rss_cfg(hw, rss_cfg, &addl_hdrs, - &hash_flds)) { + if (!ice_vc_parse_rss_cfg(hw, rss_cfg, &cfg)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (add) { - if (ice_add_rss_cfg(hw, vsi->idx, hash_flds, - addl_hdrs)) { + if (ice_add_rss_cfg(hw, vsi->idx, &cfg)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; dev_err(dev, "ice_add_rss_cfg failed for vsi = %d, v_ret = %d\n", vsi->vsi_num, v_ret); @@ -861,8 +870,7 @@ static int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add) } else { int status; - status = ice_rem_rss_cfg(hw, vsi->idx, hash_flds, - addl_hdrs); + status = ice_rem_rss_cfg(hw, vsi->idx, &cfg); /* We just ignore -ENOENT, because if two configurations * share the same profile remove one of them actually * removes both, since the profile is deleted. diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h index 99ae7960a8d1..1a836bdab968 100644 --- a/include/linux/avf/virtchnl.h +++ b/include/linux/avf/virtchnl.h @@ -912,6 +912,14 @@ struct virtchnl_rss_hena { VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_rss_hena); +/* Type of RSS algorithm */ +enum virtchnl_rss_algorithm { + VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC = 0, + VIRTCHNL_RSS_ALG_R_ASYMMETRIC = 1, + VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC = 2, + VIRTCHNL_RSS_ALG_XOR_SYMMETRIC = 3, +}; + /* VIRTCHNL_OP_ENABLE_CHANNELS * VIRTCHNL_OP_DISABLE_CHANNELS * VF sends these messages to enable or disable channels based on @@ -1096,14 +1104,6 @@ enum virtchnl_vfr_states { VIRTCHNL_VFR_VFACTIVE, }; -/* Type of RSS algorithm */ -enum virtchnl_rss_algorithm { - VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC = 0, - VIRTCHNL_RSS_ALG_R_ASYMMETRIC = 1, - VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC = 2, - VIRTCHNL_RSS_ALG_XOR_SYMMETRIC = 3, -}; - #define VIRTCHNL_MAX_NUM_PROTO_HDRS 32 #define PROTO_HDR_SHIFT 5 #define PROTO_HDR_FIELD_START(proto_hdr_type) ((proto_hdr_type) << PROTO_HDR_SHIFT) -- Gitee From 0c268335058434e1bef24189359b2fc424c2e5b7 Mon Sep 17 00:00:00 2001 From: Ahmed Zaki Date: Tue, 12 Dec 2023 17:33:19 -0700 Subject: [PATCH 4/6] ice: refactor the FD and RSS flow ID generation ANBZ: #23529 commit b1f5921a99ac8dedadf1f2599486b2ca9e01cc0f upstream The flow director and RSS blocks use separate methods to generate a unique 64 bit ID for the flow. This is not extendable, especially for the RSS that already uses all 64 bit space. Refactor the flow generation API so that the ID is generated within ice_flow_add_prof(). The FD and RSS blocks caches the generated ID for later use. Suggested-by: Dan Nowlin Reviewed-by: Wojciech Drewek Signed-off-by: Ahmed Zaki Link: https://lore.kernel.org/r/20231213003321.605376-7-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski Signed-off-by: Bitao Hu --- .../net/ethernet/intel/ice/ice_ethtool_fdir.c | 31 +++++------- .../net/ethernet/intel/ice/ice_flex_pipe.c | 11 +++++ .../net/ethernet/intel/ice/ice_flex_type.h | 6 +++ drivers/net/ethernet/intel/ice/ice_flow.c | 47 +++++-------------- drivers/net/ethernet/intel/ice/ice_flow.h | 2 +- drivers/net/ethernet/intel/ice/ice_main.c | 5 +- drivers/net/ethernet/intel/ice/ice_type.h | 1 + .../ethernet/intel/ice/ice_virtchnl_fdir.c | 33 ++++--------- 8 files changed, 55 insertions(+), 81 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c index d43b642cbc01..9b52364cb94e 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c @@ -302,9 +302,7 @@ void ice_fdir_rem_adq_chnl(struct ice_hw *hw, u16 vsi_idx) continue; for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) { - u64 prof_id; - - prof_id = flow + tun * ICE_FLTR_PTYPE_MAX; + u64 prof_id = prof->prof_id[tun]; for (i = 0; i < prof->cnt; i++) { if (prof->vsi_h[i] != vsi_idx) @@ -362,10 +360,9 @@ ice_fdir_erase_flow_from_hw(struct ice_hw *hw, enum ice_block blk, int flow) return; for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) { - u64 prof_id; + u64 prof_id = prof->prof_id[tun]; int j; - prof_id = flow + tun * ICE_FLTR_PTYPE_MAX; for (j = 0; j < prof->cnt; j++) { u16 vsi_num; @@ -439,12 +436,10 @@ void ice_fdir_replay_flows(struct ice_hw *hw) for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) { struct ice_flow_prof *hw_prof; struct ice_fd_hw_prof *prof; - u64 prof_id; int j; prof = hw->fdir_prof[flow]; - prof_id = flow + tun * ICE_FLTR_PTYPE_MAX; - ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, prof_id, + ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, prof->fdir_seg[tun], TNL_SEG_CNT(tun), &hw_prof); for (j = 0; j < prof->cnt; j++) { @@ -454,7 +449,7 @@ void ice_fdir_replay_flows(struct ice_hw *hw) prio = ICE_FLOW_PRIO_NORMAL; err = ice_flow_add_entry(hw, ICE_BLK_FD, - prof_id, + hw_prof->id, prof->vsi_h[0], prof->vsi_h[j], prio, prof->fdir_seg, @@ -464,6 +459,7 @@ void ice_fdir_replay_flows(struct ice_hw *hw) flow); continue; } + prof->prof_id[tun] = hw_prof->id; prof->entry_h[j][tun] = entry_h; } } @@ -638,7 +634,6 @@ ice_fdir_set_hw_fltr_rule(struct ice_pf *pf, struct ice_flow_seg_info *seg, u64 entry1_h = 0; u64 entry2_h = 0; bool del_last; - u64 prof_id; int err; int idx; @@ -686,23 +681,23 @@ ice_fdir_set_hw_fltr_rule(struct ice_pf *pf, struct ice_flow_seg_info *seg, * That is the final parameters are 1 header (segment), no * actions (NULL) and zero actions 0. */ - prof_id = flow + tun * ICE_FLTR_PTYPE_MAX; - err = ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, prof_id, seg, + err = ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, seg, TNL_SEG_CNT(tun), &prof); if (err) return err; - err = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, main_vsi->idx, + err = ice_flow_add_entry(hw, ICE_BLK_FD, prof->id, main_vsi->idx, main_vsi->idx, ICE_FLOW_PRIO_NORMAL, seg, &entry1_h); if (err) goto err_prof; - err = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, main_vsi->idx, + err = ice_flow_add_entry(hw, ICE_BLK_FD, prof->id, main_vsi->idx, ctrl_vsi->idx, ICE_FLOW_PRIO_NORMAL, seg, &entry2_h); if (err) goto err_entry; hw_prof->fdir_seg[tun] = seg; + hw_prof->prof_id[tun] = prof->id; hw_prof->entry_h[0][tun] = entry1_h; hw_prof->entry_h[1][tun] = entry2_h; hw_prof->vsi_h[0] = main_vsi->idx; @@ -719,7 +714,7 @@ ice_fdir_set_hw_fltr_rule(struct ice_pf *pf, struct ice_flow_seg_info *seg, entry1_h = 0; vsi_h = main_vsi->tc_map_vsi[idx]->idx; - err = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, + err = ice_flow_add_entry(hw, ICE_BLK_FD, prof->id, main_vsi->idx, vsi_h, ICE_FLOW_PRIO_NORMAL, seg, &entry1_h); @@ -756,7 +751,7 @@ ice_fdir_set_hw_fltr_rule(struct ice_pf *pf, struct ice_flow_seg_info *seg, if (!hw_prof->entry_h[idx][tun]) continue; - ice_rem_prof_id_flow(hw, ICE_BLK_FD, vsi_num, prof_id); + ice_rem_prof_id_flow(hw, ICE_BLK_FD, vsi_num, prof->id); ice_flow_rem_entry(hw, ICE_BLK_FD, hw_prof->entry_h[idx][tun]); hw_prof->entry_h[idx][tun] = 0; if (del_last) @@ -766,10 +761,10 @@ ice_fdir_set_hw_fltr_rule(struct ice_pf *pf, struct ice_flow_seg_info *seg, hw_prof->cnt = 0; err_entry: ice_rem_prof_id_flow(hw, ICE_BLK_FD, - ice_get_hw_vsi_num(hw, main_vsi->idx), prof_id); + ice_get_hw_vsi_num(hw, main_vsi->idx), prof->id); ice_flow_rem_entry(hw, ICE_BLK_FD, entry1_h); err_prof: - ice_flow_rem_prof(hw, ICE_BLK_FD, prof_id); + ice_flow_rem_prof(hw, ICE_BLK_FD, prof->id); dev_err(dev, "Failed to add filter. Flow director filters on each port must have the same input set.\n"); return err; diff --git a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c index 5ce413965930..b29c0720ce3a 100644 --- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c +++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c @@ -2118,6 +2118,7 @@ void ice_free_hw_tbls(struct ice_hw *hw) devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.ref_count); devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.written); devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.mask_ena); + devm_kfree(ice_hw_to_dev(hw), hw->blk[i].prof_id.id); } list_for_each_entry_safe(r, rt, &hw->rss_list_head, l_entry) { @@ -2150,6 +2151,7 @@ void ice_clear_hw_tbls(struct ice_hw *hw) for (i = 0; i < ICE_BLK_COUNT; i++) { struct ice_prof_redir *prof_redir = &hw->blk[i].prof_redir; + struct ice_prof_id *prof_id = &hw->blk[i].prof_id; struct ice_prof_tcam *prof = &hw->blk[i].prof; struct ice_xlt1 *xlt1 = &hw->blk[i].xlt1; struct ice_xlt2 *xlt2 = &hw->blk[i].xlt2; @@ -2180,6 +2182,8 @@ void ice_clear_hw_tbls(struct ice_hw *hw) memset(es->ref_count, 0, es->count * sizeof(*es->ref_count)); memset(es->written, 0, es->count * sizeof(*es->written)); memset(es->mask_ena, 0, es->count * sizeof(*es->mask_ena)); + + memset(prof_id->id, 0, prof_id->count * sizeof(*prof_id->id)); } } @@ -2196,6 +2200,7 @@ int ice_init_hw_tbls(struct ice_hw *hw) ice_init_all_prof_masks(hw); for (i = 0; i < ICE_BLK_COUNT; i++) { struct ice_prof_redir *prof_redir = &hw->blk[i].prof_redir; + struct ice_prof_id *prof_id = &hw->blk[i].prof_id; struct ice_prof_tcam *prof = &hw->blk[i].prof; struct ice_xlt1 *xlt1 = &hw->blk[i].xlt1; struct ice_xlt2 *xlt2 = &hw->blk[i].xlt2; @@ -2301,6 +2306,12 @@ int ice_init_hw_tbls(struct ice_hw *hw) sizeof(*es->mask_ena), GFP_KERNEL); if (!es->mask_ena) goto err; + + prof_id->count = blk_sizes[i].prof_id; + prof_id->id = devm_kcalloc(ice_hw_to_dev(hw), prof_id->count, + sizeof(*prof_id->id), GFP_KERNEL); + if (!prof_id->id) + goto err; } return 0; diff --git a/drivers/net/ethernet/intel/ice/ice_flex_type.h b/drivers/net/ethernet/intel/ice/ice_flex_type.h index 4f42e14ed3ae..395ebb18950a 100644 --- a/drivers/net/ethernet/intel/ice/ice_flex_type.h +++ b/drivers/net/ethernet/intel/ice/ice_flex_type.h @@ -304,10 +304,16 @@ struct ice_masks { struct ice_mask masks[ICE_PROF_MASK_COUNT]; }; +struct ice_prof_id { + unsigned long *id; + int count; +}; + /* Tables per block */ struct ice_blk_info { struct ice_xlt1 xlt1; struct ice_xlt2 xlt2; + struct ice_prof_id prof_id; struct ice_prof_tcam prof; struct ice_prof_redir prof_redir; struct ice_es es; diff --git a/drivers/net/ethernet/intel/ice/ice_flow.c b/drivers/net/ethernet/intel/ice/ice_flow.c index ff76eaabfb69..44f90d243fe7 100644 --- a/drivers/net/ethernet/intel/ice/ice_flow.c +++ b/drivers/net/ethernet/intel/ice/ice_flow.c @@ -1329,7 +1329,6 @@ ice_flow_rem_entry_sync(struct ice_hw *hw, enum ice_block __always_unused blk, * @hw: pointer to the HW struct * @blk: classification stage * @dir: flow direction - * @prof_id: unique ID to identify this flow profile * @segs: array of one or more packet segments that describe the flow * @segs_cnt: number of packet segments provided * @prof: stores the returned flow profile added @@ -1338,17 +1337,24 @@ ice_flow_rem_entry_sync(struct ice_hw *hw, enum ice_block __always_unused blk, */ static int ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk, - enum ice_flow_dir dir, u64 prof_id, + enum ice_flow_dir dir, struct ice_flow_seg_info *segs, u8 segs_cnt, struct ice_flow_prof **prof) { struct ice_flow_prof_params *params; + struct ice_prof_id *ids; int status; + u64 prof_id; u8 i; if (!prof) return -EINVAL; + ids = &hw->blk[blk].prof_id; + prof_id = find_first_zero_bit(ids->id, ids->count); + if (prof_id >= ids->count) + return -ENOSPC; + params = kzalloc(sizeof(*params), GFP_KERNEL); if (!params) return -ENOMEM; @@ -1394,6 +1400,7 @@ ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk, INIT_LIST_HEAD(¶ms->prof->entries); mutex_init(¶ms->prof->entries_lock); + set_bit(prof_id, ids->id); *prof = params->prof; out: @@ -1437,6 +1444,7 @@ ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk, /* Remove all hardware profiles associated with this flow profile */ status = ice_rem_prof(hw, blk, prof->id); if (!status) { + clear_bit(prof->id, hw->blk[blk].prof_id.id); list_del(&prof->l_entry); mutex_destroy(&prof->entries_lock); devm_kfree(ice_hw_to_dev(hw), prof); @@ -1512,14 +1520,13 @@ ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk, * @hw: pointer to the HW struct * @blk: classification stage * @dir: flow direction - * @prof_id: unique ID to identify this flow profile * @segs: array of one or more packet segments that describe the flow * @segs_cnt: number of packet segments provided * @prof: stores the returned flow profile added */ int ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, - u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt, + struct ice_flow_seg_info *segs, u8 segs_cnt, struct ice_flow_prof **prof) { int status; @@ -1539,8 +1546,7 @@ ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, mutex_lock(&hw->fl_profs_locks[blk]); - status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt, - prof); + status = ice_flow_add_prof_sync(hw, blk, dir, segs, segs_cnt, prof); if (!status) list_add(&(*prof)->l_entry, &hw->fl_profs[blk]); @@ -2069,28 +2075,6 @@ ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) return 0; } -#define ICE_FLOW_PROF_HASH_S 0 -#define ICE_FLOW_PROF_HASH_M GENMASK_ULL(31, 0) -#define ICE_FLOW_PROF_HDR_S 32 -#define ICE_FLOW_PROF_HDR_M GENMASK_ULL(61, 32) -#define ICE_FLOW_PROF_ENCAP_S 62 -#define ICE_FLOW_PROF_ENCAP_M GENMASK_ULL(63, 62) - -/* Flow profile ID format: - * [0:31] - Packet match fields - * [32:61] - Protocol header - * [62:63] - Encapsulation flag: - * 0 if non-tunneled - * 1 if tunneled - * 2 for tunneled with outer ipv4 - * 3 for tunneled with outer ipv6 - */ -#define ICE_FLOW_GEN_PROFID(hash, hdr, encap) \ - ((u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \ - (((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M) | \ - (((u64)(encap) << ICE_FLOW_PROF_ENCAP_S) & \ - ICE_FLOW_PROF_ENCAP_M))) - /** * ice_add_rss_cfg_sync - add an RSS configuration * @hw: pointer to the hardware structure @@ -2168,13 +2152,8 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, goto exit; } - /* Create a new flow profile with generated profile and packet - * segment information. - */ + /* Create a new flow profile with packet segment information. */ status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX, - ICE_FLOW_GEN_PROFID(cfg->hash_flds, - segs[segs_cnt - 1].hdrs, - cfg->hdr_type), segs, segs_cnt, &prof); if (status) goto exit; diff --git a/drivers/net/ethernet/intel/ice/ice_flow.h b/drivers/net/ethernet/intel/ice/ice_flow.h index 7a1db1df760e..73a54e1dd31f 100644 --- a/drivers/net/ethernet/intel/ice/ice_flow.h +++ b/drivers/net/ethernet/intel/ice/ice_flow.h @@ -406,7 +406,7 @@ struct ice_rss_cfg { int ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, - u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt, + struct ice_flow_seg_info *segs, u8 segs_cnt, struct ice_flow_prof **prof); int ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id); int diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index a2e029327bbf..cd8dea499978 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -8162,13 +8162,12 @@ static int ice_add_vsi_to_fdir(struct ice_pf *pf, struct ice_vsi *vsi) for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) { enum ice_flow_priority prio; - u64 prof_id; /* add this VSI to FDir profile for this flow */ prio = ICE_FLOW_PRIO_NORMAL; prof = hw->fdir_prof[flow]; - prof_id = flow + tun * ICE_FLTR_PTYPE_MAX; - status = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, + status = ice_flow_add_entry(hw, ICE_BLK_FD, + prof->prof_id[tun], prof->vsi_h[0], vsi->idx, prio, prof->fdir_seg[tun], &entry_h); diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h index 35ee5b29ea34..50762f6c4dec 100644 --- a/drivers/net/ethernet/intel/ice/ice_type.h +++ b/drivers/net/ethernet/intel/ice/ice_type.h @@ -246,6 +246,7 @@ struct ice_fd_hw_prof { int cnt; u64 entry_h[ICE_MAX_FDIR_VSI_PER_FILTER][ICE_FD_HW_SEG_MAX]; u16 vsi_h[ICE_MAX_FDIR_VSI_PER_FILTER]; + u64 prof_id[ICE_FD_HW_SEG_MAX]; }; /* Common HW capabilities for SW use */ diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c index 3ca5f44dea26..9e2e5c3c67ea 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c @@ -10,19 +10,6 @@ #define to_fltr_conf_from_desc(p) \ container_of(p, struct virtchnl_fdir_fltr_conf, input) -#define ICE_FLOW_PROF_TYPE_S 0 -#define ICE_FLOW_PROF_TYPE_M (0xFFFFFFFFULL << ICE_FLOW_PROF_TYPE_S) -#define ICE_FLOW_PROF_VSI_S 32 -#define ICE_FLOW_PROF_VSI_M (0xFFFFFFFFULL << ICE_FLOW_PROF_VSI_S) - -/* Flow profile ID format: - * [0:31] - flow type, flow + tun_offs - * [32:63] - VSI index - */ -#define ICE_FLOW_PROF_FD(vsi, flow, tun_offs) \ - ((u64)(((((flow) + (tun_offs)) & ICE_FLOW_PROF_TYPE_M)) | \ - (((u64)(vsi) << ICE_FLOW_PROF_VSI_S) & ICE_FLOW_PROF_VSI_M))) - #define GTPU_TEID_OFFSET 4 #define GTPU_EH_QFI_OFFSET 1 #define GTPU_EH_QFI_MASK 0x3F @@ -490,6 +477,7 @@ ice_vc_fdir_rem_prof(struct ice_vf *vf, enum ice_fltr_ptype flow, int tun) return; vf_prof = fdir->fdir_prof[flow]; + prof_id = vf_prof->prof_id[tun]; vf_vsi = ice_get_vf_vsi(vf); if (!vf_vsi) { @@ -500,9 +488,6 @@ ice_vc_fdir_rem_prof(struct ice_vf *vf, enum ice_fltr_ptype flow, int tun) if (!fdir->prof_entry_cnt[flow][tun]) return; - prof_id = ICE_FLOW_PROF_FD(vf_vsi->vsi_num, - flow, tun ? ICE_FLTR_PTYPE_MAX : 0); - for (i = 0; i < fdir->prof_entry_cnt[flow][tun]; i++) if (vf_prof->entry_h[i][tun]) { u16 vsi_num = ice_get_hw_vsi_num(hw, vf_prof->vsi_h[i]); @@ -646,7 +631,6 @@ ice_vc_fdir_write_flow_prof(struct ice_vf *vf, enum ice_fltr_ptype flow, struct ice_hw *hw; u64 entry1_h = 0; u64 entry2_h = 0; - u64 prof_id; int ret; pf = vf->pf; @@ -680,10 +664,7 @@ ice_vc_fdir_write_flow_prof(struct ice_vf *vf, enum ice_fltr_ptype flow, ice_vc_fdir_rem_prof(vf, flow, tun); } - prof_id = ICE_FLOW_PROF_FD(vf_vsi->vsi_num, flow, - tun ? ICE_FLTR_PTYPE_MAX : 0); - - ret = ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, prof_id, seg, + ret = ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, seg, tun + 1, &prof); if (ret) { dev_dbg(dev, "Could not add VSI flow 0x%x for VF %d\n", @@ -691,7 +672,7 @@ ice_vc_fdir_write_flow_prof(struct ice_vf *vf, enum ice_fltr_ptype flow, goto err_exit; } - ret = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, vf_vsi->idx, + ret = ice_flow_add_entry(hw, ICE_BLK_FD, prof->id, vf_vsi->idx, vf_vsi->idx, ICE_FLOW_PRIO_NORMAL, seg, &entry1_h); if (ret) { @@ -700,7 +681,7 @@ ice_vc_fdir_write_flow_prof(struct ice_vf *vf, enum ice_fltr_ptype flow, goto err_prof; } - ret = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, vf_vsi->idx, + ret = ice_flow_add_entry(hw, ICE_BLK_FD, prof->id, vf_vsi->idx, ctrl_vsi->idx, ICE_FLOW_PRIO_NORMAL, seg, &entry2_h); if (ret) { @@ -724,14 +705,16 @@ ice_vc_fdir_write_flow_prof(struct ice_vf *vf, enum ice_fltr_ptype flow, vf_prof->cnt++; fdir->prof_entry_cnt[flow][tun]++; + vf_prof->prof_id[tun] = prof->id; + return 0; err_entry_1: ice_rem_prof_id_flow(hw, ICE_BLK_FD, - ice_get_hw_vsi_num(hw, vf_vsi->idx), prof_id); + ice_get_hw_vsi_num(hw, vf_vsi->idx), prof->id); ice_flow_rem_entry(hw, ICE_BLK_FD, entry1_h); err_prof: - ice_flow_rem_prof(hw, ICE_BLK_FD, prof_id); + ice_flow_rem_prof(hw, ICE_BLK_FD, prof->id); err_exit: return ret; } -- Gitee From dad69bf99c4e1d788c7086ef9faf734147e054e0 Mon Sep 17 00:00:00 2001 From: Jeff Guo Date: Tue, 12 Dec 2023 17:33:20 -0700 Subject: [PATCH 5/6] ice: enable symmetric-xor RSS for Toeplitz hash function ANBZ: #23529 commit 352e9bf238133882dfaebc0dc59a590732a92006 upstream Allow the user to set the symmetric Toeplitz hash function via: # ethtool -X eth0 hfunc toeplitz symmetric-xor All existing RSS configurations will be converted to symmetric unless they have a non-symmetric field (other than IP src/dst and L4 src/dst ports) used for hashing. The driver will reject a new RSS configuration if such a field is requested. The hash function in the E800 NICs is set per-VSI and a specific AQ command is needed to modify the hash function. Use the AQ command to enable setting the symmetric Toeplitz RSS hash function for any VSI in the new ice_set_rss_hfunc(). When the Symmetric Toeplitz hash function is used, the hardware sets the input set of the RSS (Toeplitz) algorithm to be the XOR of the fields index by HSYMM and the fields index by the INSET registers. We use this to create a symmetric hash by setting the HSYMM registers to point to their counterparts in the INSET registers: HSYMM [src_fv] = dst_fv; HSYMM [dst_fv] = src_fv; where src_fv and dst_fv are the indexes of the protocol's src and dst fields. Reviewed-by: Wojciech Drewek Signed-off-by: Jeff Guo Signed-off-by: Jesse Brandeburg Co-developed-by: Ahmed Zaki Signed-off-by: Ahmed Zaki Link: https://lore.kernel.org/r/20231213003321.605376-8-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski Signed-off-by: Bitao Hu --- drivers/net/ethernet/intel/ice/ice.h | 2 + drivers/net/ethernet/intel/ice/ice_common.h | 1 + drivers/net/ethernet/intel/ice/ice_ethtool.c | 39 +-- .../net/ethernet/intel/ice/ice_ethtool_fdir.c | 4 +- .../net/ethernet/intel/ice/ice_flex_pipe.c | 33 ++- .../net/ethernet/intel/ice/ice_flex_pipe.h | 4 +- .../net/ethernet/intel/ice/ice_flex_type.h | 1 + drivers/net/ethernet/intel/ice/ice_flow.c | 265 ++++++++++++++++-- drivers/net/ethernet/intel/ice/ice_flow.h | 27 +- .../net/ethernet/intel/ice/ice_hw_autogen.h | 4 + drivers/net/ethernet/intel/ice/ice_lib.c | 40 +-- drivers/net/ethernet/intel/ice/ice_main.c | 53 ++++ drivers/net/ethernet/intel/ice/ice_virtchnl.c | 9 +- .../ethernet/intel/ice/ice_virtchnl_fdir.c | 2 +- 14 files changed, 402 insertions(+), 82 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index e29a7ffd5f14..79acd65995be 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -358,6 +358,7 @@ struct ice_vsi { /* RSS config */ u16 rss_table_size; /* HW RSS table size */ u16 rss_size; /* Allocated RSS queues */ + u8 rss_hfunc; /* User configured hash type */ u8 *rss_hkey_user; /* User configured hash keys */ u8 *rss_lut_user; /* User configured lookup table entries */ u8 rss_lut_type; /* used to configure Get/Set RSS LUT AQ call */ @@ -912,6 +913,7 @@ int ice_set_rss_lut(struct ice_vsi *vsi, u8 *lut, u16 lut_size); int ice_get_rss_lut(struct ice_vsi *vsi, u8 *lut, u16 lut_size); int ice_set_rss_key(struct ice_vsi *vsi, u8 *seed); int ice_get_rss_key(struct ice_vsi *vsi, u8 *seed); +int ice_set_rss_hfunc(struct ice_vsi *vsi, u8 hfunc); void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size); int ice_schedule_reset(struct ice_pf *pf, enum ice_reset_req reset); void ice_print_link_msg(struct ice_vsi *vsi, bool isup); diff --git a/drivers/net/ethernet/intel/ice/ice_common.h b/drivers/net/ethernet/intel/ice/ice_common.h index 226b81f97a92..fe598761eec1 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.h +++ b/drivers/net/ethernet/intel/ice/ice_common.h @@ -6,6 +6,7 @@ #include +#include "ice.h" #include "ice_type.h" #include "ice_nvm.h" #include "ice_flex_pipe.h" diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index 1d0101a22f11..e174514dc3a1 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -2419,27 +2419,15 @@ static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc) return hdrs; } -#define ICE_FLOW_HASH_FLD_IPV4_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) -#define ICE_FLOW_HASH_FLD_IPV6_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) -#define ICE_FLOW_HASH_FLD_IPV4_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) -#define ICE_FLOW_HASH_FLD_IPV6_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) -#define ICE_FLOW_HASH_FLD_TCP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) -#define ICE_FLOW_HASH_FLD_TCP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT) -#define ICE_FLOW_HASH_FLD_UDP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT) -#define ICE_FLOW_HASH_FLD_UDP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT) -#define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \ - BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) -#define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \ - BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT) - /** * ice_parse_hash_flds - parses hash fields from RSS hash input * @nfc: ethtool rxnfc command + * @symm: true if Symmetric Topelitz is set * * This function parses the rxnfc command and returns intended * hash fields for RSS configuration */ -static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc) +static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc, bool symm) { u64 hfld = ICE_HASH_INVALID; @@ -2512,6 +2500,7 @@ ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) struct device *dev; u64 hashed_flds; int status; + bool symm; u32 hdrs; dev = ice_pf_to_dev(pf); @@ -2521,7 +2510,8 @@ ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) return -EINVAL; } - hashed_flds = ice_parse_hash_flds(nfc); + symm = !!(vsi->rss_hfunc == ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ); + hashed_flds = ice_parse_hash_flds(nfc, symm); if (hashed_flds == ICE_HASH_INVALID) { dev_dbg(dev, "Invalid hash fields, vsi num = %d\n", vsi->vsi_num); @@ -2538,7 +2528,9 @@ ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) cfg.hash_flds = hashed_flds; cfg.addl_hdrs = hdrs; cfg.hdr_type = ICE_RSS_ANY_HEADERS; - status = ice_add_rss_cfg(&pf->hw, vsi->idx, &cfg); + cfg.symm = symm; + + status = ice_add_rss_cfg(&pf->hw, vsi, &cfg); if (status) { dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %d\n", vsi->vsi_num, status); @@ -2559,6 +2551,7 @@ ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) struct ice_pf *pf = vsi->back; struct device *dev; u64 hash_flds; + bool symm; u32 hdrs; dev = ice_pf_to_dev(pf); @@ -2577,7 +2570,7 @@ ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) return; } - hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs); + hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs, &symm); if (hash_flds == ICE_HASH_INVALID) { dev_dbg(dev, "No hash fields found for the given header type, vsi num = %d\n", vsi->vsi_num); @@ -3159,6 +3152,8 @@ ice_get_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh) } rxfh->hfunc = ETH_RSS_HASH_TOP; + if (vsi->rss_hfunc == ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ) + rxfh->input_xfrm |= RXH_XFRM_SYM_XOR; if (!rxfh->indir) return 0; @@ -3203,6 +3198,7 @@ ice_set_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh, struct netlink_ext_ack *extack) { struct ice_netdev_priv *np = netdev_priv(netdev); + u8 hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; struct ice_vsi *vsi = np->vsi; struct ice_pf *pf = vsi->back; struct device *dev; @@ -3227,6 +3223,14 @@ ice_set_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh, return -EOPNOTSUPP; } + /* Update the VSI's hash function */ + if (rxfh->input_xfrm & RXH_XFRM_SYM_XOR) + hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ; + + err = ice_set_rss_hfunc(vsi, hfunc); + if (err) + return err; + if (rxfh->key) { if (!vsi->rss_hkey_user) { vsi->rss_hkey_user = @@ -4122,6 +4126,7 @@ static const struct ethtool_ops ice_ethtool_ops = { .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_USE_ADAPTIVE | ETHTOOL_COALESCE_RX_USECS_HIGH, + .cap_rss_sym_xor_supported = true, .get_link_ksettings = ice_get_link_ksettings, .set_link_ksettings = ice_set_link_ksettings, .get_drvinfo = ice_get_drvinfo, diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c index 9b52364cb94e..534c09edfcb6 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c @@ -441,7 +441,7 @@ void ice_fdir_replay_flows(struct ice_hw *hw) prof = hw->fdir_prof[flow]; ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, prof->fdir_seg[tun], TNL_SEG_CNT(tun), - &hw_prof); + false, &hw_prof); for (j = 0; j < prof->cnt; j++) { enum ice_flow_priority prio; u64 entry_h = 0; @@ -682,7 +682,7 @@ ice_fdir_set_hw_fltr_rule(struct ice_pf *pf, struct ice_flow_seg_info *seg, * actions (NULL) and zero actions 0. */ err = ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, seg, - TNL_SEG_CNT(tun), &prof); + TNL_SEG_CNT(tun), false, &prof); if (err) return err; err = ice_flow_add_entry(hw, ICE_BLK_FD, prof->id, main_vsi->idx, diff --git a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c index b29c0720ce3a..85c57ec315c4 100644 --- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c +++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c @@ -1218,11 +1218,13 @@ ice_prof_has_mask(struct ice_hw *hw, enum ice_block blk, u8 prof, u16 *masks) * @blk: HW block * @fv: field vector to search for * @masks: masks for FV + * @symm: symmetric setting for RSS flows * @prof_id: receives the profile ID */ static int ice_find_prof_id_with_mask(struct ice_hw *hw, enum ice_block blk, - struct ice_fv_word *fv, u16 *masks, u8 *prof_id) + struct ice_fv_word *fv, u16 *masks, bool symm, + u8 *prof_id) { struct ice_es *es = &hw->blk[blk].es; u8 i; @@ -1236,6 +1238,9 @@ ice_find_prof_id_with_mask(struct ice_hw *hw, enum ice_block blk, for (i = 0; i < (u8)es->count; i++) { u16 off = i * es->fvw; + if (blk == ICE_BLK_RSS && es->symm[i] != symm) + continue; + if (memcmp(&es->t[off], fv, es->fvw * sizeof(*fv))) continue; @@ -1716,15 +1721,16 @@ ice_update_prof_masking(struct ice_hw *hw, enum ice_block blk, u16 prof_id, } /** - * ice_write_es - write an extraction sequence to hardware + * ice_write_es - write an extraction sequence and symmetric setting to hardware * @hw: pointer to the HW struct * @blk: the block in which to write the extraction sequence * @prof_id: the profile ID to write * @fv: pointer to the extraction sequence to write - NULL to clear extraction + * @symm: symmetric setting for RSS profiles */ static void ice_write_es(struct ice_hw *hw, enum ice_block blk, u8 prof_id, - struct ice_fv_word *fv) + struct ice_fv_word *fv, bool symm) { u16 off; @@ -1737,6 +1743,9 @@ ice_write_es(struct ice_hw *hw, enum ice_block blk, u8 prof_id, memcpy(&hw->blk[blk].es.t[off], fv, hw->blk[blk].es.fvw * sizeof(*fv)); } + + if (blk == ICE_BLK_RSS) + hw->blk[blk].es.symm[prof_id] = symm; } /** @@ -1753,7 +1762,7 @@ ice_prof_dec_ref(struct ice_hw *hw, enum ice_block blk, u8 prof_id) if (hw->blk[blk].es.ref_count[prof_id] > 0) { if (!--hw->blk[blk].es.ref_count[prof_id]) { - ice_write_es(hw, blk, prof_id, NULL); + ice_write_es(hw, blk, prof_id, NULL, false); ice_free_prof_masks(hw, blk, prof_id); return ice_free_prof_id(hw, blk, prof_id); } @@ -2116,6 +2125,7 @@ void ice_free_hw_tbls(struct ice_hw *hw) devm_kfree(ice_hw_to_dev(hw), hw->blk[i].prof_redir.t); devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.t); devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.ref_count); + devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.symm); devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.written); devm_kfree(ice_hw_to_dev(hw), hw->blk[i].es.mask_ena); devm_kfree(ice_hw_to_dev(hw), hw->blk[i].prof_id.id); @@ -2180,6 +2190,7 @@ void ice_clear_hw_tbls(struct ice_hw *hw) memset(es->t, 0, es->count * sizeof(*es->t) * es->fvw); memset(es->ref_count, 0, es->count * sizeof(*es->ref_count)); + memset(es->symm, 0, es->count * sizeof(*es->symm)); memset(es->written, 0, es->count * sizeof(*es->written)); memset(es->mask_ena, 0, es->count * sizeof(*es->mask_ena)); @@ -2297,6 +2308,11 @@ int ice_init_hw_tbls(struct ice_hw *hw) if (!es->ref_count) goto err; + es->symm = devm_kcalloc(ice_hw_to_dev(hw), es->count, + sizeof(*es->symm), GFP_KERNEL); + if (!es->symm) + goto err; + es->written = devm_kcalloc(ice_hw_to_dev(hw), es->count, sizeof(*es->written), GFP_KERNEL); if (!es->written) @@ -2974,6 +2990,7 @@ ice_add_prof_attrib(struct ice_prof_map *prof, u8 ptg, u16 ptype, * @attr_cnt: number of elements in attr array * @es: extraction sequence (length of array is determined by the block) * @masks: mask for extraction sequence + * @symm: symmetric setting for RSS profiles * * This function registers a profile, which matches a set of PTYPES with a * particular extraction sequence. While the hardware profile is allocated @@ -2983,7 +3000,7 @@ ice_add_prof_attrib(struct ice_prof_map *prof, u8 ptg, u16 ptype, int ice_add_prof(struct ice_hw *hw, enum ice_block blk, u64 id, u8 ptypes[], const struct ice_ptype_attributes *attr, u16 attr_cnt, - struct ice_fv_word *es, u16 *masks) + struct ice_fv_word *es, u16 *masks, bool symm) { u32 bytes = DIV_ROUND_UP(ICE_FLOW_PTYPE_MAX, BITS_PER_BYTE); DECLARE_BITMAP(ptgs_used, ICE_XLT1_CNT); @@ -2997,7 +3014,7 @@ ice_add_prof(struct ice_hw *hw, enum ice_block blk, u64 id, u8 ptypes[], mutex_lock(&hw->blk[blk].es.prof_map_lock); /* search for existing profile */ - status = ice_find_prof_id_with_mask(hw, blk, es, masks, &prof_id); + status = ice_find_prof_id_with_mask(hw, blk, es, masks, symm, &prof_id); if (status) { /* allocate profile ID */ status = ice_alloc_prof_id(hw, blk, &prof_id); @@ -3020,7 +3037,7 @@ ice_add_prof(struct ice_hw *hw, enum ice_block blk, u64 id, u8 ptypes[], goto err_ice_add_prof; /* and write new es */ - ice_write_es(hw, blk, prof_id, es); + ice_write_es(hw, blk, prof_id, es, symm); } ice_prof_inc_ref(hw, blk, prof_id); @@ -3108,7 +3125,7 @@ ice_add_prof(struct ice_hw *hw, enum ice_block blk, u64 id, u8 ptypes[], * This will search for a profile tracking ID which was previously added. * The profile map lock should be held before calling this function. */ -static struct ice_prof_map * +struct ice_prof_map * ice_search_prof_id(struct ice_hw *hw, enum ice_block blk, u64 id) { struct ice_prof_map *entry = NULL; diff --git a/drivers/net/ethernet/intel/ice/ice_flex_pipe.h b/drivers/net/ethernet/intel/ice/ice_flex_pipe.h index 7af7c8e9aa4e..b39d7cdc381f 100644 --- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.h +++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.h @@ -42,7 +42,9 @@ bool ice_hw_ptype_ena(struct ice_hw *hw, u16 ptype); int ice_add_prof(struct ice_hw *hw, enum ice_block blk, u64 id, u8 ptypes[], const struct ice_ptype_attributes *attr, u16 attr_cnt, - struct ice_fv_word *es, u16 *masks); + struct ice_fv_word *es, u16 *masks, bool symm); +struct ice_prof_map * +ice_search_prof_id(struct ice_hw *hw, enum ice_block blk, u64 id); int ice_add_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl); int diff --git a/drivers/net/ethernet/intel/ice/ice_flex_type.h b/drivers/net/ethernet/intel/ice/ice_flex_type.h index 395ebb18950a..d427a79d001a 100644 --- a/drivers/net/ethernet/intel/ice/ice_flex_type.h +++ b/drivers/net/ethernet/intel/ice/ice_flex_type.h @@ -146,6 +146,7 @@ struct ice_es { u32 *mask_ena; struct list_head prof_map; struct ice_fv_word *t; + u8 *symm; /* symmetric setting per profile (RSS blk)*/ struct mutex prof_map_lock; /* protect access to profiles list */ u8 *written; u8 reverse; /* set to true to reverse FV order */ diff --git a/drivers/net/ethernet/intel/ice/ice_flow.c b/drivers/net/ethernet/intel/ice/ice_flow.c index 44f90d243fe7..6bd45e3c6b9a 100644 --- a/drivers/net/ethernet/intel/ice/ice_flow.c +++ b/drivers/net/ethernet/intel/ice/ice_flow.c @@ -1235,6 +1235,7 @@ ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params) #define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001 #define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002 #define ICE_FLOW_FIND_PROF_NOT_CHK_DIR 0x00000004 +#define ICE_FLOW_FIND_PROF_CHK_SYMM 0x00000008 /** * ice_flow_find_prof_conds - Find a profile matching headers and conditions @@ -1243,13 +1244,14 @@ ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params) * @dir: flow direction * @segs: array of one or more packet segments that describe the flow * @segs_cnt: number of packet segments provided + * @symm: symmetric setting for RSS profiles * @vsi_handle: software VSI handle to check VSI (ICE_FLOW_FIND_PROF_CHK_VSI) * @conds: additional conditions to be checked (ICE_FLOW_FIND_PROF_CHK_*) */ static struct ice_flow_prof * ice_flow_find_prof_conds(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, struct ice_flow_seg_info *segs, - u8 segs_cnt, u16 vsi_handle, u32 conds) + u8 segs_cnt, bool symm, u16 vsi_handle, u32 conds) { struct ice_flow_prof *p, *prof = NULL; @@ -1265,6 +1267,11 @@ ice_flow_find_prof_conds(struct ice_hw *hw, enum ice_block blk, !test_bit(vsi_handle, p->vsis)) continue; + /* Check for symmetric settings */ + if ((conds & ICE_FLOW_FIND_PROF_CHK_SYMM) && + p->symm != symm) + continue; + /* Protocol headers must be checked. Matched fields are * checked if specified. */ @@ -1331,6 +1338,7 @@ ice_flow_rem_entry_sync(struct ice_hw *hw, enum ice_block __always_unused blk, * @dir: flow direction * @segs: array of one or more packet segments that describe the flow * @segs_cnt: number of packet segments provided + * @symm: symmetric setting for RSS profiles * @prof: stores the returned flow profile added * * Assumption: the caller has acquired the lock to the profile list @@ -1339,7 +1347,7 @@ static int ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, struct ice_flow_seg_info *segs, u8 segs_cnt, - struct ice_flow_prof **prof) + bool symm, struct ice_flow_prof **prof) { struct ice_flow_prof_params *params; struct ice_prof_id *ids; @@ -1376,6 +1384,7 @@ ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk, params->prof->id = prof_id; params->prof->dir = dir; params->prof->segs_cnt = segs_cnt; + params->prof->symm = symm; /* Make a copy of the segments that need to be persistent in the flow * profile instance @@ -1392,7 +1401,7 @@ ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk, /* Add a HW profile for this flow profile */ status = ice_add_prof(hw, blk, prof_id, (u8 *)params->ptypes, params->attr, params->attr_cnt, params->es, - params->mask); + params->mask, symm); if (status) { ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n"); goto out; @@ -1522,12 +1531,13 @@ ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk, * @dir: flow direction * @segs: array of one or more packet segments that describe the flow * @segs_cnt: number of packet segments provided + * @symm: symmetric setting for RSS profiles * @prof: stores the returned flow profile added */ int ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, struct ice_flow_seg_info *segs, u8 segs_cnt, - struct ice_flow_prof **prof) + bool symm, struct ice_flow_prof **prof) { int status; @@ -1546,7 +1556,8 @@ ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, mutex_lock(&hw->fl_profs_locks[blk]); - status = ice_flow_add_prof_sync(hw, blk, dir, segs, segs_cnt, prof); + status = ice_flow_add_prof_sync(hw, blk, dir, segs, segs_cnt, + symm, prof); if (!status) list_add(&(*prof)->l_entry, &hw->fl_profs[blk]); @@ -2068,6 +2079,7 @@ ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) rss_cfg->hash.hash_flds = prof->segs[prof->segs_cnt - 1].match; rss_cfg->hash.addl_hdrs = prof->segs[prof->segs_cnt - 1].hdrs; rss_cfg->hash.hdr_type = hdr_type; + rss_cfg->hash.symm = prof->symm; set_bit(vsi_handle, rss_cfg->vsis); list_add_tail(&rss_cfg->l_entry, &hw->rss_list_head); @@ -2075,6 +2087,139 @@ ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) return 0; } +/** + * ice_rss_config_xor_word - set the HSYMM registers for one input set word + * @hw: pointer to the hardware structure + * @prof_id: RSS hardware profile id + * @src: the FV index used by the protocol's source field + * @dst: the FV index used by the protocol's destination field + * + * Write to the HSYMM register with the index of @src FV the value of the @dst + * FV index. This will tell the hardware to XOR HSYMM[src] with INSET[dst] + * while calculating the RSS input set. + */ +static void +ice_rss_config_xor_word(struct ice_hw *hw, u8 prof_id, u8 src, u8 dst) +{ + u32 val, reg, bits_shift; + u8 reg_idx; + + reg_idx = src / GLQF_HSYMM_REG_SIZE; + bits_shift = ((src % GLQF_HSYMM_REG_SIZE) << 3); + val = dst | GLQF_HSYMM_ENABLE_BIT; + + reg = rd32(hw, GLQF_HSYMM(prof_id, reg_idx)); + reg = (reg & ~(0xff << bits_shift)) | (val << bits_shift); + wr32(hw, GLQF_HSYMM(prof_id, reg_idx), reg); +} + +/** + * ice_rss_config_xor - set the symmetric registers for a profile's protocol + * @hw: pointer to the hardware structure + * @prof_id: RSS hardware profile id + * @src: the FV index used by the protocol's source field + * @dst: the FV index used by the protocol's destination field + * @len: length of the source/destination fields in words + */ +static void +ice_rss_config_xor(struct ice_hw *hw, u8 prof_id, u8 src, u8 dst, u8 len) +{ + int fv_last_word = + ICE_FLOW_SW_FIELD_VECTOR_MAX / ICE_FLOW_FV_EXTRACT_SZ - 1; + int i; + + for (i = 0; i < len; i++) { + ice_rss_config_xor_word(hw, prof_id, + /* Yes, field vector in GLQF_HSYMM and + * GLQF_HINSET is inversed! + */ + fv_last_word - (src + i), + fv_last_word - (dst + i)); + ice_rss_config_xor_word(hw, prof_id, + fv_last_word - (dst + i), + fv_last_word - (src + i)); + } +} + +/** + * ice_rss_set_symm - set the symmetric settings for an RSS profile + * @hw: pointer to the hardware structure + * @prof: pointer to flow profile + * + * The symmetric hash will result from XORing the protocol's fields with + * indexes in GLQF_HSYMM and GLQF_HINSET. This function configures the profile's + * GLQF_HSYMM registers. + */ +static void ice_rss_set_symm(struct ice_hw *hw, struct ice_flow_prof *prof) +{ + struct ice_prof_map *map; + u8 prof_id, m; + + mutex_lock(&hw->blk[ICE_BLK_RSS].es.prof_map_lock); + map = ice_search_prof_id(hw, ICE_BLK_RSS, prof->id); + if (map) + prof_id = map->prof_id; + mutex_unlock(&hw->blk[ICE_BLK_RSS].es.prof_map_lock); + + if (!map) + return; + + /* clear to default */ + for (m = 0; m < GLQF_HSYMM_REG_PER_PROF; m++) + wr32(hw, GLQF_HSYMM(prof_id, m), 0); + + if (prof->symm) { + struct ice_flow_seg_xtrct *ipv4_src, *ipv4_dst; + struct ice_flow_seg_xtrct *ipv6_src, *ipv6_dst; + struct ice_flow_seg_xtrct *sctp_src, *sctp_dst; + struct ice_flow_seg_xtrct *tcp_src, *tcp_dst; + struct ice_flow_seg_xtrct *udp_src, *udp_dst; + struct ice_flow_seg_info *seg; + + seg = &prof->segs[prof->segs_cnt - 1]; + + ipv4_src = &seg->fields[ICE_FLOW_FIELD_IDX_IPV4_SA].xtrct; + ipv4_dst = &seg->fields[ICE_FLOW_FIELD_IDX_IPV4_DA].xtrct; + + ipv6_src = &seg->fields[ICE_FLOW_FIELD_IDX_IPV6_SA].xtrct; + ipv6_dst = &seg->fields[ICE_FLOW_FIELD_IDX_IPV6_DA].xtrct; + + tcp_src = &seg->fields[ICE_FLOW_FIELD_IDX_TCP_SRC_PORT].xtrct; + tcp_dst = &seg->fields[ICE_FLOW_FIELD_IDX_TCP_DST_PORT].xtrct; + + udp_src = &seg->fields[ICE_FLOW_FIELD_IDX_UDP_SRC_PORT].xtrct; + udp_dst = &seg->fields[ICE_FLOW_FIELD_IDX_UDP_DST_PORT].xtrct; + + sctp_src = &seg->fields[ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT].xtrct; + sctp_dst = &seg->fields[ICE_FLOW_FIELD_IDX_SCTP_DST_PORT].xtrct; + + /* xor IPv4 */ + if (ipv4_src->prot_id != 0 && ipv4_dst->prot_id != 0) + ice_rss_config_xor(hw, prof_id, + ipv4_src->idx, ipv4_dst->idx, 2); + + /* xor IPv6 */ + if (ipv6_src->prot_id != 0 && ipv6_dst->prot_id != 0) + ice_rss_config_xor(hw, prof_id, + ipv6_src->idx, ipv6_dst->idx, 8); + + /* xor TCP */ + if (tcp_src->prot_id != 0 && tcp_dst->prot_id != 0) + ice_rss_config_xor(hw, prof_id, + tcp_src->idx, tcp_dst->idx, 1); + + /* xor UDP */ + if (udp_src->prot_id != 0 && udp_dst->prot_id != 0) + ice_rss_config_xor(hw, prof_id, + udp_src->idx, udp_dst->idx, 1); + + /* xor SCTP */ + if (sctp_src->prot_id != 0 && sctp_dst->prot_id != 0) + ice_rss_config_xor(hw, prof_id, + sctp_src->idx, sctp_dst->idx, 1); + } +} + /** * ice_add_rss_cfg_sync - add an RSS configuration * @hw: pointer to the hardware structure @@ -2094,8 +2239,7 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, int status; segs_cnt = (cfg->hdr_type == ICE_RSS_OUTER_HEADERS) ? - ICE_FLOW_SEG_SINGLE : - ICE_FLOW_SEG_MAX; + ICE_FLOW_SEG_SINGLE : ICE_FLOW_SEG_MAX; segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL); if (!segs) @@ -2106,13 +2250,14 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, if (status) goto exit; - /* Search for a flow profile that has matching headers, hash fields - * and has the input VSI associated to it. If found, no further + /* Search for a flow profile that has matching headers, hash fields, + * symm and has the input VSI associated to it. If found, no further * operations required and exit. */ prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, - vsi_handle, + cfg->symm, vsi_handle, ICE_FLOW_FIND_PROF_CHK_FLDS | + ICE_FLOW_FIND_PROF_CHK_SYMM | ICE_FLOW_FIND_PROF_CHK_VSI); if (prof) goto exit; @@ -2123,7 +2268,8 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, * the protocol header and new hash field configuration. */ prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, - vsi_handle, ICE_FLOW_FIND_PROF_CHK_VSI); + cfg->symm, vsi_handle, + ICE_FLOW_FIND_PROF_CHK_VSI); if (prof) { status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle); if (!status) @@ -2139,11 +2285,12 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, } } - /* Search for a profile that has same match fields only. If this - * exists then associate the VSI to this profile. + /* Search for a profile that has the same match fields and symmetric + * setting. If this exists then associate the VSI to this profile. */ prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, - vsi_handle, + cfg->symm, vsi_handle, + ICE_FLOW_FIND_PROF_CHK_SYMM | ICE_FLOW_FIND_PROF_CHK_FLDS); if (prof) { status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); @@ -2154,10 +2301,12 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, /* Create a new flow profile with packet segment information. */ status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX, - segs, segs_cnt, &prof); + segs, segs_cnt, cfg->symm, &prof); if (status) goto exit; + prof->symm = cfg->symm; + ice_rss_set_symm(hw, prof); status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); /* If association to a new flow profile failed then this profile can * be removed. @@ -2177,7 +2326,7 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, /** * ice_add_rss_cfg - add an RSS configuration with specified hashed fields * @hw: pointer to the hardware structure - * @vsi_handle: software VSI handle + * @vsi: VSI to add the RSS configuration to * @cfg: configure parameters * * This function will generate a flow profile based on fields associated with @@ -2185,14 +2334,19 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, * a flow entry to the profile. */ int -ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, +ice_add_rss_cfg(struct ice_hw *hw, struct ice_vsi *vsi, const struct ice_rss_hash_cfg *cfg) { struct ice_rss_hash_cfg local_cfg; + u16 vsi_handle; int status; - if (!ice_is_vsi_valid(hw, vsi_handle) || !cfg || - cfg->hdr_type > ICE_RSS_ANY_HEADERS || + if (!vsi) + return -EINVAL; + + vsi_handle = vsi->idx; + if (!ice_is_vsi_valid(hw, vsi_handle) || + !cfg || cfg->hdr_type > ICE_RSS_ANY_HEADERS || cfg->hash_flds == ICE_HASH_INVALID) return -EINVAL; @@ -2233,8 +2387,7 @@ ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, int status; segs_cnt = (cfg->hdr_type == ICE_RSS_OUTER_HEADERS) ? - ICE_FLOW_SEG_SINGLE : - ICE_FLOW_SEG_MAX; + ICE_FLOW_SEG_SINGLE : ICE_FLOW_SEG_MAX; segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL); if (!segs) return -ENOMEM; @@ -2245,7 +2398,7 @@ ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, goto out; prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, - vsi_handle, + cfg->symm, vsi_handle, ICE_FLOW_FIND_PROF_CHK_FLDS); if (!prof) { status = -ENOENT; @@ -2288,8 +2441,8 @@ ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, struct ice_rss_hash_cfg local_cfg; int status; - if (!ice_is_vsi_valid(hw, vsi_handle) || !cfg || - cfg->hdr_type > ICE_RSS_ANY_HEADERS || + if (!ice_is_vsi_valid(hw, vsi_handle) || + !cfg || cfg->hdr_type > ICE_RSS_ANY_HEADERS || cfg->hash_flds == ICE_HASH_INVALID) return -EINVAL; @@ -2346,19 +2499,24 @@ ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, /** * ice_add_avf_rss_cfg - add an RSS configuration for AVF driver * @hw: pointer to the hardware structure - * @vsi_handle: software VSI handle + * @vsi: VF's VSI * @avf_hash: hash bit fields (ICE_AVF_FLOW_FIELD_*) to configure * * This function will take the hash bitmap provided by the AVF driver via a * message, convert it to ICE-compatible values, and configure RSS flow * profiles. */ -int ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash) +int ice_add_avf_rss_cfg(struct ice_hw *hw, struct ice_vsi *vsi, u64 avf_hash) { struct ice_rss_hash_cfg hcfg; + u16 vsi_handle; int status = 0; u64 hash_flds; + if (!vsi) + return -EINVAL; + + vsi_handle = vsi->idx; if (avf_hash == ICE_AVF_FLOW_FIELD_INVALID || !ice_is_vsi_valid(hw, vsi_handle)) return -EINVAL; @@ -2431,7 +2589,8 @@ int ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash) hcfg.addl_hdrs = ICE_FLOW_SEG_HDR_NONE; hcfg.hash_flds = rss_hash; hcfg.hdr_type = ICE_RSS_ANY_HEADERS; - status = ice_add_rss_cfg(hw, vsi_handle, &hcfg); + hcfg.symm = false; + status = ice_add_rss_cfg(hw, vsi, &hcfg); if (status) break; } @@ -2439,6 +2598,54 @@ int ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash) return status; } +static bool rss_cfg_symm_valid(u64 hfld) +{ + return !((!!(hfld & ICE_FLOW_HASH_FLD_IPV4_SA) ^ + !!(hfld & ICE_FLOW_HASH_FLD_IPV4_DA)) || + (!!(hfld & ICE_FLOW_HASH_FLD_IPV6_SA) ^ + !!(hfld & ICE_FLOW_HASH_FLD_IPV6_DA)) || + (!!(hfld & ICE_FLOW_HASH_FLD_TCP_SRC_PORT) ^ + !!(hfld & ICE_FLOW_HASH_FLD_TCP_DST_PORT)) || + (!!(hfld & ICE_FLOW_HASH_FLD_UDP_SRC_PORT) ^ + !!(hfld & ICE_FLOW_HASH_FLD_UDP_DST_PORT)) || + (!!(hfld & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT) ^ + !!(hfld & ICE_FLOW_HASH_FLD_SCTP_DST_PORT))); +} + +/** + * ice_set_rss_cfg_symm - set symmtery for all VSI's RSS configurations + * @hw: pointer to the hardware structure + * @vsi: VSI to set/unset Symmetric RSS + * @symm: TRUE to set Symmetric RSS hashing + */ +int ice_set_rss_cfg_symm(struct ice_hw *hw, struct ice_vsi *vsi, bool symm) +{ + struct ice_rss_hash_cfg local; + struct ice_rss_cfg *r, *tmp; + u16 vsi_handle = vsi->idx; + int status = 0; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return -EINVAL; + + mutex_lock(&hw->rss_locks); + list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry) { + if (test_bit(vsi_handle, r->vsis) && r->hash.symm != symm) { + local = r->hash; + local.symm = symm; + if (symm && !rss_cfg_symm_valid(r->hash.hash_flds)) + continue; + + status = ice_add_rss_cfg_sync(hw, vsi_handle, &local); + if (status) + break; + } + } + mutex_unlock(&hw->rss_locks); + + return status; +} + /** * ice_replay_rss_cfg - replay RSS configurations associated with VSI * @hw: pointer to the hardware structure @@ -2470,11 +2677,12 @@ int ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle) * @hw: pointer to the hardware structure * @vsi_handle: software VSI handle * @hdrs: protocol header type + * @symm: whether the RSS is symmetric (bool, output) * * This function will return the match fields of the first instance of flow * profile having the given header types and containing input VSI */ -u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs) +u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs, bool *symm) { u64 rss_hash = ICE_HASH_INVALID; struct ice_rss_cfg *r; @@ -2488,6 +2696,7 @@ u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs) if (test_bit(vsi_handle, r->vsis) && r->hash.addl_hdrs == hdrs) { rss_hash = r->hash.hash_flds; + *symm = r->hash.symm; break; } mutex_unlock(&hw->rss_locks); diff --git a/drivers/net/ethernet/intel/ice/ice_flow.h b/drivers/net/ethernet/intel/ice/ice_flow.h index 73a54e1dd31f..d2e97afebd49 100644 --- a/drivers/net/ethernet/intel/ice/ice_flow.h +++ b/drivers/net/ethernet/intel/ice/ice_flow.h @@ -229,6 +229,19 @@ enum ice_flow_field { ICE_FLOW_FIELD_IDX_MAX }; +#define ICE_FLOW_HASH_FLD_IPV4_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) +#define ICE_FLOW_HASH_FLD_IPV6_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) +#define ICE_FLOW_HASH_FLD_IPV4_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) +#define ICE_FLOW_HASH_FLD_IPV6_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) +#define ICE_FLOW_HASH_FLD_TCP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) +#define ICE_FLOW_HASH_FLD_TCP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT) +#define ICE_FLOW_HASH_FLD_UDP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT) +#define ICE_FLOW_HASH_FLD_UDP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT) +#define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \ + BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) +#define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \ + BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT) + /* Flow headers and fields for AVF support */ enum ice_flow_avf_hdr_field { /* Values 0 - 28 are reserved for future use */ @@ -296,6 +309,7 @@ struct ice_rss_hash_cfg { u32 addl_hdrs; /* protocol header fields */ u64 hash_flds; /* hash bit field (ICE_FLOW_HASH_*) to configure */ enum ice_rss_cfg_hdr_type hdr_type; /* to specify inner or outer */ + bool symm; /* symmetric or asymmetric hash */ }; enum ice_flow_dir { @@ -311,6 +325,7 @@ enum ice_flow_priority { #define ICE_FLOW_SEG_SINGLE 1 #define ICE_FLOW_SEG_MAX 2 #define ICE_FLOW_SEG_RAW_FLD_MAX 2 +#define ICE_FLOW_SW_FIELD_VECTOR_MAX 48 #define ICE_FLOW_FV_EXTRACT_SZ 2 #define ICE_FLOW_SET_HDRS(seg, val) ((seg)->hdrs |= (u32)(val)) @@ -395,6 +410,8 @@ struct ice_flow_prof { /* software VSI handles referenced by this flow profile */ DECLARE_BITMAP(vsis, ICE_MAX_VSI); + + bool symm; /* Symmetric Hash for RSS */ }; struct ice_rss_cfg { @@ -407,7 +424,7 @@ struct ice_rss_cfg { int ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, struct ice_flow_seg_info *segs, u8 segs_cnt, - struct ice_flow_prof **prof); + bool symm, struct ice_flow_prof **prof); int ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id); int ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id, @@ -423,11 +440,13 @@ ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len, int ice_flow_rem_vsi_prof(struct ice_hw *hw, u16 vsi_handle, u64 prof_id); void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle); int ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle); -int ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds); +int ice_set_rss_cfg_symm(struct ice_hw *hw, struct ice_vsi *vsi, bool symm); +int ice_add_avf_rss_cfg(struct ice_hw *hw, struct ice_vsi *vsi, + u64 hashed_flds); int ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle); -int ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, +int ice_add_rss_cfg(struct ice_hw *hw, struct ice_vsi *vsi, const struct ice_rss_hash_cfg *cfg); int ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, const struct ice_rss_hash_cfg *cfg); -u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs); +u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs, bool *symm); #endif /* _ICE_FLOW_H_ */ diff --git a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h index 96f70c0a9659..e662383dc5cb 100644 --- a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h +++ b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h @@ -403,6 +403,10 @@ #define GLQF_HMASK_SEL(_i) (0x00410000 + ((_i) * 4)) #define GLQF_HMASK_SEL_MAX_INDEX 127 #define GLQF_HMASK_SEL_MASK_SEL_S 0 +#define GLQF_HSYMM(_i, _j) (0x0040F000 + ((_i) * 4 + (_j) * 512)) +#define GLQF_HSYMM_REG_SIZE 4 +#define GLQF_HSYMM_REG_PER_PROF 6 +#define GLQF_HSYMM_ENABLE_BIT BIT(7) #define E800_PFQF_FD_CNT_FD_GCNT_M GENMASK(14, 0) #define E830_PFQF_FD_CNT_FD_GCNT_M GENMASK(15, 0) #define E800_PFQF_FD_CNT_FD_BCNT_M GENMASK(30, 16) diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 63d0a749024a..345d510b36cb 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -1182,12 +1182,10 @@ static void ice_set_rss_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi) case ICE_VSI_PF: /* PF VSI will inherit RSS instance of PF */ lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_PF; - hash_type = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; break; case ICE_VSI_VF: /* VF VSI will gets a small RSS table which is a VSI LUT type */ lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI; - hash_type = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; break; default: dev_dbg(dev, "Unsupported VSI type %s\n", @@ -1195,9 +1193,12 @@ static void ice_set_rss_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi) return; } - ctxt->info.q_opt_rss = ((lut_type << ICE_AQ_VSI_Q_OPT_RSS_LUT_S) & - ICE_AQ_VSI_Q_OPT_RSS_LUT_M) | - (hash_type & ICE_AQ_VSI_Q_OPT_RSS_HASH_M); + hash_type = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; + vsi->rss_hfunc = hash_type; + + ctxt->info.q_opt_rss = + FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_LUT_M, lut_type) | + FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_HASH_M, hash_type); } static void @@ -1596,7 +1597,7 @@ static void ice_vsi_set_vf_rss_flow_fld(struct ice_vsi *vsi) return; } - status = ice_add_avf_rss_cfg(&pf->hw, vsi->idx, ICE_DEFAULT_RSS_HENA); + status = ice_add_avf_rss_cfg(&pf->hw, vsi, ICE_DEFAULT_RSS_HENA); if (status) dev_dbg(dev, "ice_add_avf_rss_cfg failed for vsi = %d, error = %d\n", vsi->vsi_num, status); @@ -1604,34 +1605,34 @@ static void ice_vsi_set_vf_rss_flow_fld(struct ice_vsi *vsi) static const struct ice_rss_hash_cfg default_rss_cfgs[] = { /* configure RSS for IPv4 with input set IP src/dst */ - {ICE_FLOW_SEG_HDR_IPV4, ICE_FLOW_HASH_IPV4, ICE_RSS_ANY_HEADERS}, + {ICE_FLOW_SEG_HDR_IPV4, ICE_FLOW_HASH_IPV4, ICE_RSS_ANY_HEADERS, false}, /* configure RSS for IPv6 with input set IPv6 src/dst */ - {ICE_FLOW_SEG_HDR_IPV6, ICE_FLOW_HASH_IPV6, ICE_RSS_ANY_HEADERS}, + {ICE_FLOW_SEG_HDR_IPV6, ICE_FLOW_HASH_IPV6, ICE_RSS_ANY_HEADERS, false}, /* configure RSS for tcp4 with input set IP src/dst, TCP src/dst */ {ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4, - ICE_HASH_TCP_IPV4, ICE_RSS_ANY_HEADERS}, + ICE_HASH_TCP_IPV4, ICE_RSS_ANY_HEADERS, false}, /* configure RSS for udp4 with input set IP src/dst, UDP src/dst */ {ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4, - ICE_HASH_UDP_IPV4, ICE_RSS_ANY_HEADERS}, + ICE_HASH_UDP_IPV4, ICE_RSS_ANY_HEADERS, false}, /* configure RSS for sctp4 with input set IP src/dst - only support * RSS on SCTPv4 on outer headers (non-tunneled) */ {ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4, - ICE_HASH_SCTP_IPV4, ICE_RSS_OUTER_HEADERS}, + ICE_HASH_SCTP_IPV4, ICE_RSS_OUTER_HEADERS, false}, /* configure RSS for tcp6 with input set IPv6 src/dst, TCP src/dst */ {ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6, - ICE_HASH_TCP_IPV6, ICE_RSS_ANY_HEADERS}, + ICE_HASH_TCP_IPV6, ICE_RSS_ANY_HEADERS, false}, /* configure RSS for udp6 with input set IPv6 src/dst, UDP src/dst */ {ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6, - ICE_HASH_UDP_IPV6, ICE_RSS_ANY_HEADERS}, + ICE_HASH_UDP_IPV6, ICE_RSS_ANY_HEADERS, false}, /* configure RSS for sctp6 with input set IPv6 src/dst - only support * RSS on SCTPv6 on outer headers (non-tunneled) */ {ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6, - ICE_HASH_SCTP_IPV6, ICE_RSS_OUTER_HEADERS}, + ICE_HASH_SCTP_IPV6, ICE_RSS_OUTER_HEADERS, false}, /* configure RSS for IPSEC ESP SPI with input set MAC_IPV4_SPI */ {ICE_FLOW_SEG_HDR_ESP, - ICE_FLOW_HASH_ESP_SPI, ICE_RSS_OUTER_HEADERS}, + ICE_FLOW_HASH_ESP_SPI, ICE_RSS_OUTER_HEADERS, false}, }; /** @@ -1647,7 +1648,7 @@ static const struct ice_rss_hash_cfg default_rss_cfgs[] = { */ static void ice_vsi_set_rss_flow_fld(struct ice_vsi *vsi) { - u16 vsi_handle = vsi->idx, vsi_num = vsi->vsi_num; + u16 vsi_num = vsi->vsi_num; struct ice_pf *pf = vsi->back; struct ice_hw *hw = &pf->hw; struct device *dev; @@ -1663,10 +1664,11 @@ static void ice_vsi_set_rss_flow_fld(struct ice_vsi *vsi) for (i = 0; i < ARRAY_SIZE(default_rss_cfgs); i++) { const struct ice_rss_hash_cfg *cfg = &default_rss_cfgs[i]; - status = ice_add_rss_cfg(hw, vsi_handle, cfg); + status = ice_add_rss_cfg(hw, vsi, cfg); if (status) - dev_dbg(dev, "ice_add_rss_cfg failed, addl_hdrs = %x, hash_flds = %llx, hdr_type = %d\n", - cfg->addl_hdrs, cfg->hash_flds, cfg->hdr_type); + dev_dbg(dev, "ice_add_rss_cfg failed, addl_hdrs = %x, hash_flds = %llx, hdr_type = %d, symm = %d\n", + cfg->addl_hdrs, cfg->hash_flds, + cfg->hdr_type, cfg->symm); } } diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index cd8dea499978..ddf40a4ddaab 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -7728,6 +7728,59 @@ int ice_get_rss_key(struct ice_vsi *vsi, u8 *seed) return status; } +/** + * ice_set_rss_hfunc - Set RSS HASH function + * @vsi: Pointer to VSI structure + * @hfunc: hash function (ICE_AQ_VSI_Q_OPT_RSS_*) + * + * Returns 0 on success, negative on failure + */ +int ice_set_rss_hfunc(struct ice_vsi *vsi, u8 hfunc) +{ + struct ice_hw *hw = &vsi->back->hw; + struct ice_vsi_ctx *ctx; + bool symm; + int err; + + if (hfunc == vsi->rss_hfunc) + return 0; + + if (hfunc != ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ && + hfunc != ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ) + return -EOPNOTSUPP; + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID); + ctx->info.q_opt_rss = vsi->info.q_opt_rss; + ctx->info.q_opt_rss &= ~ICE_AQ_VSI_Q_OPT_RSS_HASH_M; + ctx->info.q_opt_rss |= + FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_HASH_M, hfunc); + ctx->info.q_opt_tc = vsi->info.q_opt_tc; + ctx->info.q_opt_flags = vsi->info.q_opt_rss; + + err = ice_update_vsi(hw, vsi->idx, ctx, NULL); + if (err) { + dev_err(ice_pf_to_dev(vsi->back), "Failed to configure RSS hash for VSI %d, error %d\n", + vsi->vsi_num, err); + } else { + vsi->info.q_opt_rss = ctx->info.q_opt_rss; + vsi->rss_hfunc = hfunc; + netdev_info(vsi->netdev, "Hash function set to: %sToeplitz\n", + hfunc == ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ ? + "Symmetric " : ""); + } + kfree(ctx); + if (err) + return err; + + /* Fix the symmetry setting for all existing RSS configurations */ + symm = !!(hfunc == ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ); + return ice_set_rss_cfg_symm(hw, vsi, symm); +} + /** * ice_bridge_getlink - Get the hardware bridge mode * @skb: skb buff diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c index b33f457af7f9..c770043da2ab 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c @@ -696,6 +696,11 @@ static bool ice_vc_parse_rss_cfg(struct ice_hw *hw, /* set outer layer RSS as default */ hash_cfg->hdr_type = ICE_RSS_OUTER_HEADERS; + if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) + hash_cfg->symm = true; + else + hash_cfg->symm = false; + hf_list = ice_vc_hash_field_list; hf_list_len = ARRAY_SIZE(ice_vc_hash_field_list); hdr_list = ice_vc_hdr_list; @@ -862,7 +867,7 @@ static int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add) } if (add) { - if (ice_add_rss_cfg(hw, vsi->idx, &cfg)) { + if (ice_add_rss_cfg(hw, vsi, &cfg)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; dev_err(dev, "ice_add_rss_cfg failed for vsi = %d, v_ret = %d\n", vsi->vsi_num, v_ret); @@ -2603,7 +2608,7 @@ static int ice_vc_set_rss_hena(struct ice_vf *vf, u8 *msg) } if (vrh->hena) { - status = ice_add_avf_rss_cfg(&pf->hw, vsi->idx, vrh->hena); + status = ice_add_avf_rss_cfg(&pf->hw, vsi, vrh->hena); v_ret = ice_err_to_virt_err(status); } diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c index 9e2e5c3c67ea..d515a097e932 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c @@ -665,7 +665,7 @@ ice_vc_fdir_write_flow_prof(struct ice_vf *vf, enum ice_fltr_ptype flow, } ret = ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, seg, - tun + 1, &prof); + tun + 1, false, &prof); if (ret) { dev_dbg(dev, "Could not add VSI flow 0x%x for VF %d\n", flow, vf->vf_id); -- Gitee From e560ce32589b9defa938415043a9d3049e47683b Mon Sep 17 00:00:00 2001 From: Ahmed Zaki Date: Tue, 12 Dec 2023 17:33:21 -0700 Subject: [PATCH 6/6] iavf: enable symmetric-xor RSS for Toeplitz hash function ANBZ: #23529 commit 4a3de3fb0eb6897488dd510006abd9673f1fb34c upstream Allow the user to set the symmetric Toeplitz hash function via: # ethtool -X eth0 hfunc toeplitz symmetric-xor The driver will reject any new RSS configuration if a field other than (IP src/dst and L4 src/dst ports) is requested for hashing. The symmetric RSS will not be supported on PFs not advertising the ADV RSS Offload flag (ADV_RSS_SUPPORT()), for example the E700 series (i40e). Reviewed-by: Madhu Chittim Signed-off-by: Ahmed Zaki Link: https://lore.kernel.org/r/20231213003321.605376-9-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski Signed-off-by: Bitao Hu --- drivers/net/ethernet/intel/iavf/iavf.h | 5 +- .../net/ethernet/intel/iavf/iavf_adv_rss.c | 8 ++- .../net/ethernet/intel/iavf/iavf_adv_rss.h | 3 +- .../net/ethernet/intel/iavf/iavf_ethtool.c | 32 ++++++++++-- drivers/net/ethernet/intel/iavf/iavf_main.c | 4 ++ .../net/ethernet/intel/iavf/iavf_virtchnl.c | 41 +++++++++++++++ drivers/net/ethernet/intel/ice/ice_virtchnl.c | 50 +++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_virtchnl.h | 1 + .../intel/ice/ice_virtchnl_allowlist.c | 1 + include/linux/avf/virtchnl.h | 19 +++++++ 10 files changed, 156 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/intel/iavf/iavf.h b/drivers/net/ethernet/intel/iavf/iavf.h index 431d9d62c8c6..259a5dbd5b25 100644 --- a/drivers/net/ethernet/intel/iavf/iavf.h +++ b/drivers/net/ethernet/intel/iavf/iavf.h @@ -324,7 +324,8 @@ struct iavf_adapter { #define IAVF_FLAG_AQ_SET_HENA BIT_ULL(12) #define IAVF_FLAG_AQ_SET_RSS_KEY BIT_ULL(13) #define IAVF_FLAG_AQ_SET_RSS_LUT BIT_ULL(14) -#define IAVF_FLAG_AQ_CONFIGURE_PROMISC_MODE BIT_ULL(15) +#define IAVF_FLAG_AQ_SET_RSS_HFUNC BIT_ULL(15) +#define IAVF_FLAG_AQ_CONFIGURE_PROMISC_MODE BIT_ULL(16) #define IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING BIT_ULL(19) #define IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING BIT_ULL(20) #define IAVF_FLAG_AQ_ENABLE_CHANNELS BIT_ULL(21) @@ -430,6 +431,7 @@ struct iavf_adapter { struct iavf_vsi vsi; u32 aq_wait_count; /* RSS stuff */ + enum virtchnl_rss_algorithm hfunc; u64 hena; u16 rss_key_size; u16 rss_lut_size; @@ -561,6 +563,7 @@ void iavf_get_hena(struct iavf_adapter *adapter); void iavf_set_hena(struct iavf_adapter *adapter); void iavf_set_rss_key(struct iavf_adapter *adapter); void iavf_set_rss_lut(struct iavf_adapter *adapter); +void iavf_set_rss_hfunc(struct iavf_adapter *adapter); void iavf_enable_vlan_stripping(struct iavf_adapter *adapter); void iavf_disable_vlan_stripping(struct iavf_adapter *adapter); void iavf_virtchnl_completion(struct iavf_adapter *adapter, diff --git a/drivers/net/ethernet/intel/iavf/iavf_adv_rss.c b/drivers/net/ethernet/intel/iavf/iavf_adv_rss.c index 6edbf134b73f..a9e1da35e248 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_adv_rss.c +++ b/drivers/net/ethernet/intel/iavf/iavf_adv_rss.c @@ -95,17 +95,21 @@ iavf_fill_adv_rss_sctp_hdr(struct virtchnl_proto_hdr *hdr, u64 hash_flds) * @rss_cfg: the virtchnl message to be filled with RSS configuration setting * @packet_hdrs: the RSS configuration protocol header types * @hash_flds: the RSS configuration protocol hash fields + * @symm: if true, symmetric hash is required * * Returns 0 if the RSS configuration virtchnl message is filled successfully */ int iavf_fill_adv_rss_cfg_msg(struct virtchnl_rss_cfg *rss_cfg, - u32 packet_hdrs, u64 hash_flds) + u32 packet_hdrs, u64 hash_flds, bool symm) { struct virtchnl_proto_hdrs *proto_hdrs = &rss_cfg->proto_hdrs; struct virtchnl_proto_hdr *hdr; - rss_cfg->rss_algorithm = VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC; + if (symm) + rss_cfg->rss_algorithm = VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC; + else + rss_cfg->rss_algorithm = VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC; proto_hdrs->tunnel_level = 0; /* always outer layer */ diff --git a/drivers/net/ethernet/intel/iavf/iavf_adv_rss.h b/drivers/net/ethernet/intel/iavf/iavf_adv_rss.h index 4d3be11af7aa..e31eb2afebea 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_adv_rss.h +++ b/drivers/net/ethernet/intel/iavf/iavf_adv_rss.h @@ -80,13 +80,14 @@ struct iavf_adv_rss { u32 packet_hdrs; u64 hash_flds; + bool symm; struct virtchnl_rss_cfg cfg_msg; }; int iavf_fill_adv_rss_cfg_msg(struct virtchnl_rss_cfg *rss_cfg, - u32 packet_hdrs, u64 hash_flds); + u32 packet_hdrs, u64 hash_flds, bool symm); struct iavf_adv_rss * iavf_find_adv_rss_cfg_by_hdrs(struct iavf_adapter *adapter, u32 packet_hdrs); void diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c index d652ea908e0f..d8a1cb566691 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c +++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c @@ -1544,11 +1544,12 @@ static u32 iavf_adv_rss_parse_hdrs(struct ethtool_rxnfc *cmd) /** * iavf_adv_rss_parse_hash_flds - parses hash fields from RSS hash input * @cmd: ethtool rxnfc command + * @symm: true if Symmetric Topelitz is set * * This function parses the rxnfc command and returns intended hash fields for * RSS configuration */ -static u64 iavf_adv_rss_parse_hash_flds(struct ethtool_rxnfc *cmd) +static u64 iavf_adv_rss_parse_hash_flds(struct ethtool_rxnfc *cmd, bool symm) { u64 hfld = IAVF_ADV_RSS_HASH_INVALID; @@ -1620,17 +1621,20 @@ iavf_set_adv_rss_hash_opt(struct iavf_adapter *adapter, struct iavf_adv_rss *rss_old, *rss_new; bool rss_new_add = false; int count = 50, err = 0; + bool symm = false; u64 hash_flds; u32 hdrs; if (!ADV_RSS_SUPPORT(adapter)) return -EOPNOTSUPP; + symm = !!(adapter->hfunc == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC); + hdrs = iavf_adv_rss_parse_hdrs(cmd); if (hdrs == IAVF_ADV_RSS_FLOW_SEG_HDR_NONE) return -EINVAL; - hash_flds = iavf_adv_rss_parse_hash_flds(cmd); + hash_flds = iavf_adv_rss_parse_hash_flds(cmd, symm); if (hash_flds == IAVF_ADV_RSS_HASH_INVALID) return -EINVAL; @@ -1638,7 +1642,8 @@ iavf_set_adv_rss_hash_opt(struct iavf_adapter *adapter, if (!rss_new) return -ENOMEM; - if (iavf_fill_adv_rss_cfg_msg(&rss_new->cfg_msg, hdrs, hash_flds)) { + if (iavf_fill_adv_rss_cfg_msg(&rss_new->cfg_msg, hdrs, hash_flds, + symm)) { kfree(rss_new); return -EINVAL; } @@ -1657,9 +1662,11 @@ iavf_set_adv_rss_hash_opt(struct iavf_adapter *adapter, if (rss_old) { if (rss_old->state != IAVF_ADV_RSS_ACTIVE) { err = -EBUSY; - } else if (rss_old->hash_flds != hash_flds) { + } else if (rss_old->hash_flds != hash_flds || + rss_old->symm != symm) { rss_old->state = IAVF_ADV_RSS_ADD_REQUEST; rss_old->hash_flds = hash_flds; + rss_old->symm = symm; memcpy(&rss_old->cfg_msg, &rss_new->cfg_msg, sizeof(rss_new->cfg_msg)); adapter->aq_required |= IAVF_FLAG_AQ_ADD_ADV_RSS_CFG; @@ -1671,6 +1678,7 @@ iavf_set_adv_rss_hash_opt(struct iavf_adapter *adapter, rss_new->state = IAVF_ADV_RSS_ADD_REQUEST; rss_new->packet_hdrs = hdrs; rss_new->hash_flds = hash_flds; + rss_new->symm = symm; list_add_tail(&rss_new->list, &adapter->adv_rss_list_head); adapter->aq_required |= IAVF_FLAG_AQ_ADD_ADV_RSS_CFG; } @@ -1922,6 +1930,9 @@ static int iavf_get_rxfh(struct net_device *netdev, u16 i; rxfh->hfunc = ETH_RSS_HASH_TOP; + if (adapter->hfunc == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) + rxfh->input_xfrm |= RXH_XFRM_SYM_XOR; + if (rxfh->key) memcpy(rxfh->key, adapter->rss_key, adapter->rss_key_size); @@ -1954,6 +1965,18 @@ static int iavf_set_rxfh(struct net_device *netdev, rxfh->hfunc != ETH_RSS_HASH_TOP) return -EOPNOTSUPP; + if ((rxfh->input_xfrm & RXH_XFRM_SYM_XOR) && + adapter->hfunc != VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) { + if (!ADV_RSS_SUPPORT(adapter)) + return -EOPNOTSUPP; + adapter->hfunc = VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC; + adapter->aq_required |= IAVF_FLAG_AQ_SET_RSS_HFUNC; + } else if (!(rxfh->input_xfrm & RXH_XFRM_SYM_XOR) && + adapter->hfunc != VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC) { + adapter->hfunc = VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC; + adapter->aq_required |= IAVF_FLAG_AQ_SET_RSS_HFUNC; + } + if (!rxfh->key && !rxfh->indir) return 0; @@ -1972,6 +1995,7 @@ static int iavf_set_rxfh(struct net_device *netdev, static const struct ethtool_ops iavf_ethtool_ops = { .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_USE_ADAPTIVE, + .cap_rss_sym_xor_supported = true, .get_drvinfo = iavf_get_drvinfo, .get_link = ethtool_op_get_link, .get_ringparam = iavf_get_ringparam, diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index fde8d7b80ca6..ea0b49ca35d3 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -2158,6 +2158,10 @@ static int iavf_process_aq_command(struct iavf_adapter *adapter) iavf_set_rss_lut(adapter); return 0; } + if (adapter->aq_required & IAVF_FLAG_AQ_SET_RSS_HFUNC) { + iavf_set_rss_hfunc(adapter); + return 0; + } if (adapter->aq_required & IAVF_FLAG_AQ_CONFIGURE_PROMISC_MODE) { iavf_set_promiscuous(adapter); diff --git a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c index b95a4f903204..cb82dd2fd547 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c +++ b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c @@ -1138,6 +1138,34 @@ void iavf_set_rss_lut(struct iavf_adapter *adapter) kfree(vrl); } +/** + * iavf_set_rss_hfunc + * @adapter: adapter structure + * + * Request the PF to set our RSS Hash function + **/ +void iavf_set_rss_hfunc(struct iavf_adapter *adapter) +{ + struct virtchnl_rss_hfunc *vrh; + int len = sizeof(*vrh); + + if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) { + /* bail because we already have a command pending */ + dev_err(&adapter->pdev->dev, "Cannot set RSS Hash function, command %d pending\n", + adapter->current_op); + return; + } + vrh = kzalloc(len, GFP_KERNEL); + if (!vrh) + return; + vrh->vsi_id = adapter->vsi.id; + vrh->rss_algorithm = adapter->hfunc; + adapter->current_op = VIRTCHNL_OP_CONFIG_RSS_HFUNC; + adapter->aq_required &= ~IAVF_FLAG_AQ_SET_RSS_HFUNC; + iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_RSS_HFUNC, (u8 *)vrh, len); + kfree(vrh); +} + /** * iavf_enable_vlan_stripping * @adapter: adapter structure @@ -2193,6 +2221,19 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter, dev_warn(&adapter->pdev->dev, "Failed to add VLAN filter, error %s\n", iavf_stat_str(&adapter->hw, v_retval)); break; + case VIRTCHNL_OP_CONFIG_RSS_HFUNC: + dev_warn(&adapter->pdev->dev, "Failed to configure hash function, error %s\n", + iavf_stat_str(&adapter->hw, v_retval)); + + if (adapter->hfunc == + VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) + adapter->hfunc = + VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC; + else + adapter->hfunc = + VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC; + + break; default: dev_err(&adapter->pdev->dev, "PF returned error %d (%s) to our request %d\n", v_retval, iavf_stat_str(&adapter->hw, v_retval), diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c index c770043da2ab..5a05979439c1 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c @@ -985,6 +985,51 @@ static int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg) NULL, 0); } +/** + * ice_vc_config_rss_hfunc + * @vf: pointer to the VF info + * @msg: pointer to the msg buffer + * + * Configure the VF's RSS Hash function + */ +static int ice_vc_config_rss_hfunc(struct ice_vf *vf, u8 *msg) +{ + struct virtchnl_rss_hfunc *vrh = (struct virtchnl_rss_hfunc *)msg; + enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; + u8 hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; + struct ice_vsi *vsi; + + if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (!ice_vc_isvalid_vsi_id(vf, vrh->vsi_id)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + vsi = ice_get_vf_vsi(vf); + if (!vsi) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (vrh->rss_algorithm == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) + hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ; + + if (ice_set_rss_hfunc(vsi, hfunc)) + v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR; +error_param: + return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_HFUNC, v_ret, + NULL, 0); +} + /** * ice_vc_cfg_promiscuous_mode_msg * @vf: pointer to the VF info @@ -3706,6 +3751,7 @@ static const struct ice_virtchnl_ops ice_virtchnl_dflt_ops = { .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg, .config_rss_key = ice_vc_config_rss_key, .config_rss_lut = ice_vc_config_rss_lut, + .config_rss_hfunc = ice_vc_config_rss_hfunc, .get_stats_msg = ice_vc_get_stats_msg, .cfg_promiscuous_mode_msg = ice_vc_cfg_promiscuous_mode_msg, .add_vlan_msg = ice_vc_add_vlan_msg, @@ -3835,6 +3881,7 @@ static const struct ice_virtchnl_ops ice_virtchnl_repr_ops = { .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg, .config_rss_key = ice_vc_config_rss_key, .config_rss_lut = ice_vc_config_rss_lut, + .config_rss_hfunc = ice_vc_config_rss_hfunc, .get_stats_msg = ice_vc_get_stats_msg, .cfg_promiscuous_mode_msg = ice_vc_repr_cfg_promiscuous_mode, .add_vlan_msg = ice_vc_add_vlan_msg, @@ -4019,6 +4066,9 @@ void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event, case VIRTCHNL_OP_CONFIG_RSS_LUT: err = ops->config_rss_lut(vf, msg); break; + case VIRTCHNL_OP_CONFIG_RSS_HFUNC: + err = ops->config_rss_hfunc(vf, msg); + break; case VIRTCHNL_OP_GET_STATS: err = ops->get_stats_msg(vf, msg); break; diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.h b/drivers/net/ethernet/intel/ice/ice_virtchnl.h index a0d03f350dfc..3a4115869153 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl.h +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.h @@ -41,6 +41,7 @@ struct ice_virtchnl_ops { int (*cfg_irq_map_msg)(struct ice_vf *vf, u8 *msg); int (*config_rss_key)(struct ice_vf *vf, u8 *msg); int (*config_rss_lut)(struct ice_vf *vf, u8 *msg); + int (*config_rss_hfunc)(struct ice_vf *vf, u8 *msg); int (*get_stats_msg)(struct ice_vf *vf, u8 *msg); int (*cfg_promiscuous_mode_msg)(struct ice_vf *vf, u8 *msg); int (*add_vlan_msg)(struct ice_vf *vf, u8 *msg); diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_allowlist.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_allowlist.c index 588b77f1a4bf..d796dbd2a440 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_allowlist.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_allowlist.c @@ -66,6 +66,7 @@ static const u32 vlan_v2_allowlist_opcodes[] = { static const u32 rss_pf_allowlist_opcodes[] = { VIRTCHNL_OP_CONFIG_RSS_KEY, VIRTCHNL_OP_CONFIG_RSS_LUT, VIRTCHNL_OP_GET_RSS_HENA_CAPS, VIRTCHNL_OP_SET_RSS_HENA, + VIRTCHNL_OP_CONFIG_RSS_HFUNC, }; /* VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC */ diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h index 1a836bdab968..8e177b67e82f 100644 --- a/include/linux/avf/virtchnl.h +++ b/include/linux/avf/virtchnl.h @@ -119,6 +119,7 @@ enum virtchnl_ops { VIRTCHNL_OP_GET_STATS = 15, VIRTCHNL_OP_RSVD = 16, VIRTCHNL_OP_EVENT = 17, /* must ALWAYS be 17 */ + VIRTCHNL_OP_CONFIG_RSS_HFUNC = 18, /* opcode 19 is reserved */ VIRTCHNL_OP_IWARP = 20, /* advanced opcode */ VIRTCHNL_OP_RDMA = VIRTCHNL_OP_IWARP, @@ -920,6 +921,21 @@ enum virtchnl_rss_algorithm { VIRTCHNL_RSS_ALG_XOR_SYMMETRIC = 3, }; +/* VIRTCHNL_OP_CONFIG_RSS_HFUNC + * VF sends this message to configure the RSS hash function. Only supported + * if both PF and VF drivers set the VIRTCHNL_VF_OFFLOAD_RSS_PF bit during + * configuration negotiation. + * The hash function is initialized to VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC + * by the PF. + */ +struct virtchnl_rss_hfunc { + u16 vsi_id; + u16 rss_algorithm; /* enum virtchnl_rss_algorithm */ + u32 reserved; +}; + +VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_rss_hfunc); + /* VIRTCHNL_OP_ENABLE_CHANNELS * VIRTCHNL_OP_DISABLE_CHANNELS * VF sends these messages to enable or disable channels based on @@ -1543,6 +1559,9 @@ virtchnl_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode, vrl->lut_entries); } break; + case VIRTCHNL_OP_CONFIG_RSS_HFUNC: + valid_len = sizeof(struct virtchnl_rss_hfunc); + break; case VIRTCHNL_OP_GET_RSS_HENA_CAPS: break; case VIRTCHNL_OP_SET_RSS_HENA: -- Gitee