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octeon: enable ethernet pause frame support

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This patch adds support for MAC pause flow control.
By default, pause flow control is enabled in the device
configuration.

Type: feature

Signed-off-by: Alok Mishra <almishra@marvell.com>
Change-Id: I0f448479a38fae615d87af7e736c6053ada89cca
This commit is contained in:
Alok Mishra
2024-08-09 13:29:24 +05:00
committed by Damjan Marion
parent 156694162c
commit 53239b45ca
1 changed files with 73 additions and 0 deletions
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73
src/plugins/dev_octeon/port.c
View File

@ -52,6 +52,72 @@ oct_roc_err (vnet_dev_t *dev, int rv, char *fmt, ...)
return VNET_DEV_ERR_INTERNAL;
}
vnet_dev_rv_t
oct_port_pause_flow_control_init (vlib_main_t *vm, vnet_dev_port_t *port)
{
vnet_dev_t *dev = port->dev;
oct_device_t *cd = vnet_dev_get_data (dev);
struct roc_nix *nix = cd->nix;
struct roc_nix_fc_cfg fc_cfg;
struct roc_nix_sq *sq;
struct roc_nix_cq *cq;
struct roc_nix_rq *rq;
int rrv;
if (roc_nix_is_sdp (nix) || roc_nix_is_lbk (nix))
return VNET_DEV_ERR_UNSUPPORTED_DEVICE;
fc_cfg.type = ROC_NIX_FC_RXCHAN_CFG;
fc_cfg.rxchan_cfg.enable = true;
rrv = roc_nix_fc_config_set (nix, &fc_cfg);
if (rrv)
return oct_roc_err (dev, rrv, "roc_nix_fc_config_set failed");
memset (&fc_cfg, 0, sizeof (struct roc_nix_fc_cfg));
fc_cfg.type = ROC_NIX_FC_RQ_CFG;
fc_cfg.rq_cfg.enable = true;
fc_cfg.rq_cfg.tc = 0;
foreach_vnet_dev_port_rx_queue (rxq, port)
{
oct_rxq_t *crq = vnet_dev_get_rx_queue_data (rxq);
rq = &crq->rq;
cq = &crq->cq;
fc_cfg.rq_cfg.rq = rq->qid;
fc_cfg.rq_cfg.cq_drop = cq->drop_thresh;
rrv = roc_nix_fc_config_set (nix, &fc_cfg);
if (rrv)
return oct_roc_err (dev, rrv, "roc_nix_fc_config_set failed");
}
memset (&fc_cfg, 0, sizeof (struct roc_nix_fc_cfg));
fc_cfg.type = ROC_NIX_FC_TM_CFG;
fc_cfg.tm_cfg.tc = 0;
fc_cfg.tm_cfg.enable = true;
foreach_vnet_dev_port_tx_queue (txq, port)
{
oct_txq_t *ctq = vnet_dev_get_tx_queue_data (txq);
sq = &ctq->sq;
fc_cfg.tm_cfg.sq = sq->qid;
rrv = roc_nix_fc_config_set (nix, &fc_cfg);
if (rrv)
return oct_roc_err (dev, rrv, "roc_nix_fc_config_set failed");
}
/* By default, enable pause flow control */
rrv = roc_nix_fc_mode_set (nix, ROC_NIX_FC_FULL);
if (rrv)
return oct_roc_err (dev, rrv, "roc_nix_fc_mode_set failed");
return VNET_DEV_OK;
}
vnet_dev_rv_t
oct_port_init (vlib_main_t *vm, vnet_dev_port_t *port)
{
@ -148,6 +214,13 @@ oct_port_init (vlib_main_t *vm, vnet_dev_port_t *port)
return rv;
}
/* Configure pause frame flow control*/
if ((rv = oct_port_pause_flow_control_init (vm, port)))
{
oct_port_deinit (vm, port);
return rv;
}
return VNET_DEV_OK;
}