diff options
| author |   Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> | 2020-05-15 22:41:05 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-05-15 10:54:07 -0700 |
| commit | 5148e5950c675a26ab1f5eb4b291e9bd986116c9 (patch) | |
| tree | dcc8837cbe53a9962875875c46f4a538c0950681 /drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c | |
| parent | cxgb4: tune burst buffer size for TC-MQPRIO offload (diff) | |
| download | wireguard-linux-5148e5950c675a26ab1f5eb4b291e9bd986116c9.tar.xz wireguard-linux-5148e5950c675a26ab1f5eb4b291e9bd986116c9.zip | |
cxgb4: add EOTID tracking and software context dump
Rework and add support for dumping EOTID software context used by
TC-MQPRIO. Also track number of EOTIDs in use.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c index 56079c9937db..ae7123a9de8e 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c @@ -574,6 +574,7 @@ static void cxgb4_mqprio_disable_offload(struct net_device *dev) int cxgb4_setup_tc_mqprio(struct net_device *dev, struct tc_mqprio_qopt_offload *mqprio) { + struct adapter *adap = netdev2adap(dev); bool needs_bring_up = false; int ret; @@ -581,6 +582,8 @@ int cxgb4_setup_tc_mqprio(struct net_device *dev, if (ret) return ret; + mutex_lock(&adap->tc_mqprio->mqprio_mutex); + /* To configure tc params, the current allocated EOTIDs must * be freed up. However, they can't be freed up if there's * traffic running on the interface. So, ensure interface is @@ -616,6 +619,7 @@ out: if (needs_bring_up) cxgb_open(dev); + mutex_unlock(&adap->tc_mqprio->mqprio_mutex); return ret; } @@ -628,6 +632,7 @@ void cxgb4_mqprio_stop_offload(struct adapter *adap) if (!adap->tc_mqprio || !adap->tc_mqprio->port_mqprio) return; + mutex_lock(&adap->tc_mqprio->mqprio_mutex); for_each_port(adap, i) { dev = adap->port[i]; if (!dev) @@ -639,6 +644,7 @@ void cxgb4_mqprio_stop_offload(struct adapter *adap) cxgb4_mqprio_disable_offload(dev); } + mutex_unlock(&adap->tc_mqprio->mqprio_mutex); } int cxgb4_init_tc_mqprio(struct adapter *adap) @@ -660,6 +666,8 @@ int cxgb4_init_tc_mqprio(struct adapter *adap) goto out_free_mqprio; } + mutex_init(&tc_mqprio->mqprio_mutex); + tc_mqprio->port_mqprio = tc_port_mqprio; for (i = 0; i < adap->params.nports; i++) { port_mqprio = &tc_mqprio->port_mqprio[i]; @@ -694,6 +702,7 @@ void cxgb4_cleanup_tc_mqprio(struct adapter *adap) u8 i; if (adap->tc_mqprio) { + mutex_lock(&adap->tc_mqprio->mqprio_mutex); if (adap->tc_mqprio->port_mqprio) { for (i = 0; i < adap->params.nports; i++) { struct net_device *dev = adap->port[i]; @@ -705,6 +714,7 @@ void cxgb4_cleanup_tc_mqprio(struct adapter *adap) } kfree(adap->tc_mqprio->port_mqprio); } + mutex_unlock(&adap->tc_mqprio->mqprio_mutex); kfree(adap->tc_mqprio); } } |