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authorWei Dai <wei.dai@intel.com>2018-05-10 19:56:55 +0800
committerFerruh Yigit <ferruh.yigit@intel.com>2018-05-14 22:31:51 +0100
commita4996bd89c42590f8886454a06a994f71acf89dd (patch)
tree473add5786efaaa017690953bf7f3994a2a5e9e0 /drivers/net/mlx5/mlx5_txq.c
parentdf428ceef4fdbceacda8d50341c25ddd46a76a39 (diff)
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ethdev: new Rx/Tx offloads API
This patch check if a input requested offloading is valid or not. Any reuqested offloading must be supported in the device capabilities. Any offloading is disabled by default if it is not set in the parameter dev_conf->[rt]xmode.offloads to rte_eth_dev_configure() and [rt]x_conf->offloads to rte_eth_[rt]x_queue_setup(). If any offloading is enabled in rte_eth_dev_configure() by application, it is enabled on all queues no matter whether it is per-queue or per-port type and no matter whether it is set or cleared in [rt]x_conf->offloads to rte_eth_[rt]x_queue_setup(). If a per-queue offloading hasn't be enabled in rte_eth_dev_configure(), it can be enabled or disabled for individual queue in ret_eth_[rt]x_queue_setup(). A new added offloading is the one which hasn't been enabled in rte_eth_dev_configure() and is reuqested to be enabled in rte_eth_[rt]x_queue_setup(), it must be per-queue type, otherwise trigger an error log. The underlying PMD must be aware that the requested offloadings to PMD specific queue_setup() function only carries those new added offloadings of per-queue type. This patch can make above such checking in a common way in rte_ethdev layer to avoid same checking in underlying PMD. This patch assumes that all PMDs in 18.05-rc2 have already converted to offload API defined in 17.11 . It also assumes that all PMDs can return correct offloading capabilities in rte_eth_dev_infos_get(). In the beginning of [rt]x_queue_setup() of underlying PMD, add offloads = [rt]xconf->offloads | dev->data->dev_conf.[rt]xmode.offloads; to keep same as offload API defined in 17.11 to avoid upper application broken due to offload API change. PMD can use the info that input [rt]xconf->offloads only carry the new added per-queue offloads to do some optimization or some code change on base of this patch. Signed-off-by: Wei Dai <wei.dai@intel.com> Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Diffstat (limited to 'drivers/net/mlx5/mlx5_txq.c')
-rw-r--r--drivers/net/mlx5/mlx5_txq.c44
1 files changed, 2 insertions, 42 deletions
diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c
index af25373..6fe8673 100644
--- a/drivers/net/mlx5/mlx5_txq.c
+++ b/drivers/net/mlx5/mlx5_txq.c
@@ -127,31 +127,6 @@ mlx5_get_tx_port_offloads(struct rte_eth_dev *dev)
}
/**
- * Checks if the per-queue offload configuration is valid.
- *
- * @param dev
- * Pointer to Ethernet device.
- * @param offloads
- * Per-queue offloads configuration.
- *
- * @return
- * 1 if the configuration is valid, 0 otherwise.
- */
-static int
-mlx5_is_tx_queue_offloads_allowed(struct rte_eth_dev *dev, uint64_t offloads)
-{
- uint64_t port_offloads = dev->data->dev_conf.txmode.offloads;
- uint64_t port_supp_offloads = mlx5_get_tx_port_offloads(dev);
-
- /* There are no Tx offloads which are per queue. */
- if ((offloads & port_supp_offloads) != offloads)
- return 0;
- if ((port_offloads ^ offloads) & port_supp_offloads)
- return 0;
- return 1;
-}
-
-/**
* DPDK callback to configure a TX queue.
*
* @param dev
@@ -177,22 +152,6 @@ mlx5_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
struct mlx5_txq_ctrl *txq_ctrl =
container_of(txq, struct mlx5_txq_ctrl, txq);
- /*
- * Don't verify port offloads for application which
- * use the old API.
- */
- if (!!(conf->txq_flags & ETH_TXQ_FLAGS_IGNORE) &&
- !mlx5_is_tx_queue_offloads_allowed(dev, conf->offloads)) {
- rte_errno = ENOTSUP;
- DRV_LOG(ERR,
- "port %u Tx queue offloads 0x%" PRIx64 " don't match"
- " port offloads 0x%" PRIx64 " or supported offloads 0x%"
- PRIx64,
- dev->data->port_id, conf->offloads,
- dev->data->dev_conf.txmode.offloads,
- mlx5_get_tx_port_offloads(dev));
- return -rte_errno;
- }
if (desc <= MLX5_TX_COMP_THRESH) {
DRV_LOG(WARNING,
"port %u number of descriptors requested for Tx queue"
@@ -798,7 +757,8 @@ mlx5_txq_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
return NULL;
}
assert(desc > MLX5_TX_COMP_THRESH);
- tmpl->txq.offloads = conf->offloads;
+ tmpl->txq.offloads = conf->offloads |
+ dev->data->dev_conf.txmode.offloads;
tmpl->priv = priv;
tmpl->socket = socket;
tmpl->txq.elts_n = log2above(desc);