leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

qede: Add support for populating ethernet TLVs.

Browse Source 
This patch adds callbacks for providing the ethernet protocol driver TLVs.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sudarsana Reddy Kalluru 2018-05-22 00:28:42 -07:00 committed by David S. Miller
parent 59ccf86fe6
commit d25b859ccd
1 changed files with 101 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

101
drivers/net/ethernet/qlogic/qede/qede_main.c
View File

@ -133,6 +133,9 @@ static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id);
static void qede_remove(struct pci_dev *pdev);
static void qede_shutdown(struct pci_dev *pdev);
static void qede_link_update(void *dev, struct qed_link_output *link);
static void qede_get_eth_tlv_data(void *edev, void *data);
static void qede_get_generic_tlv_data(void *edev,
struct qed_generic_tlvs *data);
/* The qede lock is used to protect driver state change and driver flows that
* are not reentrant.
@ -228,6 +231,8 @@ static struct qed_eth_cb_ops qede_ll_ops = {
.arfs_filter_op = qede_arfs_filter_op,
#endif
.link_update = qede_link_update,
.get_generic_tlv_data = qede_get_generic_tlv_data,
.get_protocol_tlv_data = qede_get_eth_tlv_data,
},
.force_mac = qede_force_mac,
.ports_update = qede_udp_ports_update,
@ -2131,3 +2136,99 @@ static void qede_link_update(void *dev, struct qed_link_output *link)
}
}
}
static bool qede_is_txq_full(struct qede_dev *edev, struct qede_tx_queue *txq)
{
struct netdev_queue *netdev_txq;
netdev_txq = netdev_get_tx_queue(edev->ndev, txq->index);
if (netif_xmit_stopped(netdev_txq))
return true;
return false;
}
static void qede_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data)
{
struct qede_dev *edev = dev;
struct netdev_hw_addr *ha;
int i;
if (edev->ndev->features & NETIF_F_IP_CSUM)
data->feat_flags |= QED_TLV_IP_CSUM;
if (edev->ndev->features & NETIF_F_TSO)
data->feat_flags |= QED_TLV_LSO;
ether_addr_copy(data->mac[0], edev->ndev->dev_addr);
memset(data->mac[1], 0, ETH_ALEN);
memset(data->mac[2], 0, ETH_ALEN);
/* Copy the first two UC macs */
netif_addr_lock_bh(edev->ndev);
i = 1;
netdev_for_each_uc_addr(ha, edev->ndev) {
ether_addr_copy(data->mac[i++], ha->addr);
if (i == QED_TLV_MAC_COUNT)
break;
}
netif_addr_unlock_bh(edev->ndev);
}
static void qede_get_eth_tlv_data(void *dev, void *data)
{
struct qed_mfw_tlv_eth *etlv = data;
struct qede_dev *edev = dev;
struct qede_fastpath *fp;
int i;
etlv->lso_maxoff_size = 0XFFFF;
etlv->lso_maxoff_size_set = true;
etlv->lso_minseg_size = (u16)ETH_TX_LSO_WINDOW_MIN_LEN;
etlv->lso_minseg_size_set = true;
etlv->prom_mode = !!(edev->ndev->flags & IFF_PROMISC);
etlv->prom_mode_set = true;
etlv->tx_descr_size = QEDE_TSS_COUNT(edev);
etlv->tx_descr_size_set = true;
etlv->rx_descr_size = QEDE_RSS_COUNT(edev);
etlv->rx_descr_size_set = true;
etlv->iov_offload = QED_MFW_TLV_IOV_OFFLOAD_VEB;
etlv->iov_offload_set = true;
/* Fill information regarding queues; Should be done under the qede
* lock to guarantee those don't change beneath our feet.
*/
etlv->txqs_empty = true;
etlv->rxqs_empty = true;
etlv->num_txqs_full = 0;
etlv->num_rxqs_full = 0;
__qede_lock(edev);
for_each_queue(i) {
fp = &edev->fp_array[i];
if (fp->type & QEDE_FASTPATH_TX) {
if (fp->txq->sw_tx_cons != fp->txq->sw_tx_prod)
etlv->txqs_empty = false;
if (qede_is_txq_full(edev, fp->txq))
etlv->num_txqs_full++;
}
if (fp->type & QEDE_FASTPATH_RX) {
if (qede_has_rx_work(fp->rxq))
etlv->rxqs_empty = false;
/* This one is a bit tricky; Firmware might stop
* placing packets if ring is not yet full.
* Give an approximation.
*/
if (le16_to_cpu(*fp->rxq->hw_cons_ptr) -
qed_chain_get_cons_idx(&fp->rxq->rx_comp_ring) >
RX_RING_SIZE - 100)
etlv->num_rxqs_full++;
}
}
__qede_unlock(edev);
etlv->txqs_empty_set = true;
etlv->rxqs_empty_set = true;
etlv->num_txqs_full_set = true;
etlv->num_rxqs_full_set = true;
}