cxgb3 - enable lro control through ethtool
Implement ethtool's get_flags and set_flags methods. It enables ethtool to control the LRO settings. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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@ -493,6 +493,36 @@ static void enable_all_napi(struct adapter *adap)
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napi_enable(&adap->sge.qs[i].napi);
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napi_enable(&adap->sge.qs[i].napi);
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}
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}
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/**
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* set_qset_lro - Turn a queue set's LRO capability on and off
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* @dev: the device the qset is attached to
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* @qset_idx: the queue set index
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* @val: the LRO switch
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*
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* Sets LRO on or off for a particular queue set.
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* the device's features flag is updated to reflect the LRO
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* capability when all queues belonging to the device are
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* in the same state.
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*/
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static void set_qset_lro(struct net_device *dev, int qset_idx, int val)
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{
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struct port_info *pi = netdev_priv(dev);
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struct adapter *adapter = pi->adapter;
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int i, lro_on = 1;
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adapter->params.sge.qset[qset_idx].lro = !!val;
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adapter->sge.qs[qset_idx].lro_enabled = !!val;
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/* let ethtool report LRO on only if all queues are LRO enabled */
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for (i = pi->first_qset; i < pi->first_qset + pi->nqsets; ++i)
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lro_on &= adapter->params.sge.qset[i].lro;
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if (lro_on)
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dev->features |= NETIF_F_LRO;
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else
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dev->features &= ~NETIF_F_LRO;
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}
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/**
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/**
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* setup_sge_qsets - configure SGE Tx/Rx/response queues
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* setup_sge_qsets - configure SGE Tx/Rx/response queues
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* @adap: the adapter
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* @adap: the adapter
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@ -516,8 +546,7 @@ static int setup_sge_qsets(struct adapter *adap)
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pi->qs = &adap->sge.qs[pi->first_qset];
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pi->qs = &adap->sge.qs[pi->first_qset];
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for (j = pi->first_qset; j < pi->first_qset + pi->nqsets;
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for (j = pi->first_qset; j < pi->first_qset + pi->nqsets;
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++j, ++qset_idx) {
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++j, ++qset_idx) {
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if (!pi->rx_csum_offload)
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set_qset_lro(dev, qset_idx, pi->rx_csum_offload);
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adap->params.sge.qset[qset_idx].lro = 0;
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err = t3_sge_alloc_qset(adap, qset_idx, 1,
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err = t3_sge_alloc_qset(adap, qset_idx, 1,
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(adap->flags & USING_MSIX) ? qset_idx + 1 :
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(adap->flags & USING_MSIX) ? qset_idx + 1 :
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irq_idx,
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irq_idx,
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@ -1632,13 +1661,10 @@ static int set_rx_csum(struct net_device *dev, u32 data)
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p->rx_csum_offload = data;
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p->rx_csum_offload = data;
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if (!data) {
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if (!data) {
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struct adapter *adap = p->adapter;
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int i;
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int i;
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for (i = p->first_qset; i < p->first_qset + p->nqsets; i++) {
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for (i = p->first_qset; i < p->first_qset + p->nqsets; i++)
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adap->params.sge.qset[i].lro = 0;
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set_qset_lro(dev, i, 0);
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adap->sge.qs[i].lro_enabled = 0;
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}
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}
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}
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return 0;
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return 0;
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}
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}
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@ -1793,6 +1819,25 @@ static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
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memset(&wol->sopass, 0, sizeof(wol->sopass));
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memset(&wol->sopass, 0, sizeof(wol->sopass));
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}
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}
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static int cxgb3_set_flags(struct net_device *dev, u32 data)
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{
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struct port_info *pi = netdev_priv(dev);
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int i;
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if (data & ETH_FLAG_LRO) {
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if (!pi->rx_csum_offload)
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return -EINVAL;
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for (i = pi->first_qset; i < pi->first_qset + pi->nqsets; i++)
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set_qset_lro(dev, i, 1);
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} else
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for (i = pi->first_qset; i < pi->first_qset + pi->nqsets; i++)
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set_qset_lro(dev, i, 0);
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return 0;
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}
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static const struct ethtool_ops cxgb_ethtool_ops = {
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static const struct ethtool_ops cxgb_ethtool_ops = {
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.get_settings = get_settings,
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.get_settings = get_settings,
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.set_settings = set_settings,
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.set_settings = set_settings,
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@ -1822,6 +1867,8 @@ static const struct ethtool_ops cxgb_ethtool_ops = {
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.get_regs = get_regs,
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.get_regs = get_regs,
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.get_wol = get_wol,
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.get_wol = get_wol,
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.set_tso = ethtool_op_set_tso,
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.set_tso = ethtool_op_set_tso,
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.get_flags = ethtool_op_get_flags,
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.set_flags = cxgb3_set_flags,
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};
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};
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static int in_range(int val, int lo, int hi)
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static int in_range(int val, int lo, int hi)
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@ -1938,11 +1985,9 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
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}
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}
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}
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}
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}
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}
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if (t.lro >= 0) {
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if (t.lro >= 0)
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struct sge_qset *qs = &adapter->sge.qs[t.qset_idx];
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set_qset_lro(dev, t.qset_idx, t.lro);
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q->lro = t.lro;
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qs->lro_enabled = t.lro;
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}
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break;
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break;
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}
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}
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case CHELSIO_GET_QSET_PARAMS:{
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case CHELSIO_GET_QSET_PARAMS:{
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