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igb: set default Rx/Tx configuration

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Many sample apps use duplicated code to set rte_eth_txconf and rte_eth_rxconf
structures. This patch allows the user to get a default optimal RX/TX configuration
through rte_eth_dev_info get, and still any parameters may be tweaked as wished,
before setting up queues.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: David Marchand <david.marchand@6wind.com>
[Thomas: split patch]
This commit is contained in:
Pablo de Lara 2014-10-01 10:49:04 +01:00 committed by Thomas Monjalon
parent fbde27f19a
commit 90daa93a1c
1 changed files with 31 additions and 0 deletions
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31
lib/librte_pmd_e1000/igb_ethdev.c
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@ -57,6 +57,18 @@
#include "e1000/e1000_api.h"
#include "e1000_ethdev.h"
/*
* Default values for port configuration
*/
#define IGB_DEFAULT_RX_FREE_THRESH 32
#define IGB_DEFAULT_RX_PTHRESH 8
#define IGB_DEFAULT_RX_HTHRESH 8
#define IGB_DEFAULT_RX_WTHRESH 0
#define IGB_DEFAULT_TX_PTHRESH 32
#define IGB_DEFAULT_TX_HTHRESH 0
#define IGB_DEFAULT_TX_WTHRESH 0
static int eth_igb_configure(struct rte_eth_dev *dev);
static int eth_igb_start(struct rte_eth_dev *dev);
static void eth_igb_stop(struct rte_eth_dev *dev);
@ -1336,6 +1348,25 @@ eth_igb_infos_get(struct rte_eth_dev *dev,
dev_info->max_tx_queues = 0;
dev_info->max_vmdq_pools = 0;
}
dev_info->default_rxconf = (struct rte_eth_rxconf) {
.rx_thresh = {
.pthresh = IGB_DEFAULT_RX_PTHRESH,
.hthresh = IGB_DEFAULT_RX_HTHRESH,
.wthresh = IGB_DEFAULT_RX_WTHRESH,
},
.rx_free_thresh = IGB_DEFAULT_RX_FREE_THRESH,
.rx_drop_en = 0,
};
dev_info->default_txconf = (struct rte_eth_txconf) {
.tx_thresh = {
.pthresh = IGB_DEFAULT_TX_PTHRESH,
.hthresh = IGB_DEFAULT_TX_HTHRESH,
.wthresh = IGB_DEFAULT_TX_WTHRESH,
},
.txq_flags = 0,
};
}
/* return 0 means link status changed, -1 means not changed */