mirror of https://gitee.com/openkylin/linux.git
ionic: Add the basic NDO callbacks for netdev support
Set up the initial NDO structure and callbacks for netdev to use, and register the netdev. This will allow us to do a few basic operations on the device, but no traffic yet. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shannon Nelson
David S. Miller
parent
77ceb68e29
commit
beead698b1
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@ -28,6 +28,7 @@ struct ionic_lif;
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struct ionic {
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struct pci_dev *pdev;
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struct device *dev;
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struct devlink_port dl_port;
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struct ionic_dev idev;
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struct mutex dev_cmd_lock; /* lock for dev_cmd operations */
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struct dentry *dentry;
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@ -35,6 +36,7 @@ struct ionic {
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unsigned int num_bars;
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struct ionic_identity ident;
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struct list_head lifs;
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struct ionic_lif *master_lif;
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unsigned int nnqs_per_lif;
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unsigned int neqs_per_lif;
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unsigned int ntxqs_per_lif;
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@ -206,12 +206,24 @@ static int ionic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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goto err_out_free_lifs;
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}
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err = ionic_lifs_register(ionic);
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if (err) {
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dev_err(dev, "Cannot register LIFs: %d, aborting\n", err);
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goto err_out_deinit_lifs;
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}
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err = ionic_devlink_register(ionic);
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if (err)
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if (err) {
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dev_err(dev, "Cannot register devlink: %d\n", err);
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goto err_out_deregister_lifs;
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}
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return 0;
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err_out_deregister_lifs:
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ionic_lifs_unregister(ionic);
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err_out_deinit_lifs:
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ionic_lifs_deinit(ionic);
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err_out_free_lifs:
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ionic_lifs_free(ionic);
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err_out_free_irqs:
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@ -246,6 +258,7 @@ static void ionic_remove(struct pci_dev *pdev)
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return;
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ionic_devlink_unregister(ionic);
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ionic_lifs_unregister(ionic);
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ionic_lifs_deinit(ionic);
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ionic_lifs_free(ionic);
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ionic_bus_free_irq_vectors(ionic);
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@ -10,6 +10,8 @@
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#include "ionic_if.h"
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#include "ionic_regs.h"
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#define IONIC_MIN_MTU ETH_MIN_MTU
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#define IONIC_MAX_MTU 9194
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#define IONIC_LIFS_MAX 1024
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struct ionic_dev_bar {
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@ -6,6 +6,7 @@
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#include "ionic.h"
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#include "ionic_bus.h"
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#include "ionic_lif.h"
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#include "ionic_devlink.h"
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static int ionic_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
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@ -72,8 +73,19 @@ int ionic_devlink_register(struct ionic *ionic)
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int err;
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err = devlink_register(dl, ionic->dev);
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if (err)
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if (err) {
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dev_warn(ionic->dev, "devlink_register failed: %d\n", err);
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return err;
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}
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devlink_port_attrs_set(&ionic->dl_port, DEVLINK_PORT_FLAVOUR_PHYSICAL,
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0, false, 0, NULL, 0);
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err = devlink_port_register(dl, &ionic->dl_port, 0);
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if (err)
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dev_err(ionic->dev, "devlink_port_register failed: %d\n", err);
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else
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devlink_port_type_eth_set(&ionic->dl_port,
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ionic->master_lif->netdev);
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return err;
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}
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@ -82,5 +94,6 @@ void ionic_devlink_unregister(struct ionic *ionic)
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{
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struct devlink *dl = priv_to_devlink(ionic);
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devlink_port_unregister(&ionic->dl_port);
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devlink_unregister(dl);
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}
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@ -399,6 +399,305 @@ static int ionic_adminq_napi(struct napi_struct *napi, int budget)
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return max(n_work, a_work);
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}
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static __le64 ionic_netdev_features_to_nic(netdev_features_t features)
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{
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u64 wanted = 0;
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if (features & NETIF_F_HW_VLAN_CTAG_TX)
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wanted |= IONIC_ETH_HW_VLAN_TX_TAG;
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if (features & NETIF_F_HW_VLAN_CTAG_RX)
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wanted |= IONIC_ETH_HW_VLAN_RX_STRIP;
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if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
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wanted |= IONIC_ETH_HW_VLAN_RX_FILTER;
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if (features & NETIF_F_RXHASH)
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wanted |= IONIC_ETH_HW_RX_HASH;
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if (features & NETIF_F_RXCSUM)
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wanted |= IONIC_ETH_HW_RX_CSUM;
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if (features & NETIF_F_SG)
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wanted |= IONIC_ETH_HW_TX_SG;
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if (features & NETIF_F_HW_CSUM)
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wanted |= IONIC_ETH_HW_TX_CSUM;
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if (features & NETIF_F_TSO)
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wanted |= IONIC_ETH_HW_TSO;
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if (features & NETIF_F_TSO6)
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wanted |= IONIC_ETH_HW_TSO_IPV6;
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if (features & NETIF_F_TSO_ECN)
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wanted |= IONIC_ETH_HW_TSO_ECN;
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if (features & NETIF_F_GSO_GRE)
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wanted |= IONIC_ETH_HW_TSO_GRE;
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if (features & NETIF_F_GSO_GRE_CSUM)
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wanted |= IONIC_ETH_HW_TSO_GRE_CSUM;
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if (features & NETIF_F_GSO_IPXIP4)
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wanted |= IONIC_ETH_HW_TSO_IPXIP4;
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if (features & NETIF_F_GSO_IPXIP6)
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wanted |= IONIC_ETH_HW_TSO_IPXIP6;
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if (features & NETIF_F_GSO_UDP_TUNNEL)
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wanted |= IONIC_ETH_HW_TSO_UDP;
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if (features & NETIF_F_GSO_UDP_TUNNEL_CSUM)
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wanted |= IONIC_ETH_HW_TSO_UDP_CSUM;
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return cpu_to_le64(wanted);
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}
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static int ionic_set_nic_features(struct ionic_lif *lif,
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netdev_features_t features)
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{
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struct device *dev = lif->ionic->dev;
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struct ionic_admin_ctx ctx = {
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.work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
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.cmd.lif_setattr = {
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.opcode = IONIC_CMD_LIF_SETATTR,
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.index = cpu_to_le16(lif->index),
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.attr = IONIC_LIF_ATTR_FEATURES,
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},
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};
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u64 vlan_flags = IONIC_ETH_HW_VLAN_TX_TAG |
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IONIC_ETH_HW_VLAN_RX_STRIP |
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IONIC_ETH_HW_VLAN_RX_FILTER;
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int err;
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ctx.cmd.lif_setattr.features = ionic_netdev_features_to_nic(features);
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err = ionic_adminq_post_wait(lif, &ctx);
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if (err)
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return err;
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lif->hw_features = le64_to_cpu(ctx.cmd.lif_setattr.features &
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ctx.comp.lif_setattr.features);
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if ((vlan_flags & features) &&
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!(vlan_flags & le64_to_cpu(ctx.comp.lif_setattr.features)))
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dev_info_once(lif->ionic->dev, "NIC is not supporting vlan offload, likely in SmartNIC mode\n");
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if (lif->hw_features & IONIC_ETH_HW_VLAN_TX_TAG)
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dev_dbg(dev, "feature ETH_HW_VLAN_TX_TAG\n");
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if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_STRIP)
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dev_dbg(dev, "feature ETH_HW_VLAN_RX_STRIP\n");
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if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_FILTER)
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dev_dbg(dev, "feature ETH_HW_VLAN_RX_FILTER\n");
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if (lif->hw_features & IONIC_ETH_HW_RX_HASH)
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dev_dbg(dev, "feature ETH_HW_RX_HASH\n");
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if (lif->hw_features & IONIC_ETH_HW_TX_SG)
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dev_dbg(dev, "feature ETH_HW_TX_SG\n");
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if (lif->hw_features & IONIC_ETH_HW_TX_CSUM)
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dev_dbg(dev, "feature ETH_HW_TX_CSUM\n");
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if (lif->hw_features & IONIC_ETH_HW_RX_CSUM)
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dev_dbg(dev, "feature ETH_HW_RX_CSUM\n");
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if (lif->hw_features & IONIC_ETH_HW_TSO)
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dev_dbg(dev, "feature ETH_HW_TSO\n");
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if (lif->hw_features & IONIC_ETH_HW_TSO_IPV6)
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dev_dbg(dev, "feature ETH_HW_TSO_IPV6\n");
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if (lif->hw_features & IONIC_ETH_HW_TSO_ECN)
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dev_dbg(dev, "feature ETH_HW_TSO_ECN\n");
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if (lif->hw_features & IONIC_ETH_HW_TSO_GRE)
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dev_dbg(dev, "feature ETH_HW_TSO_GRE\n");
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if (lif->hw_features & IONIC_ETH_HW_TSO_GRE_CSUM)
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dev_dbg(dev, "feature ETH_HW_TSO_GRE_CSUM\n");
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if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP4)
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dev_dbg(dev, "feature ETH_HW_TSO_IPXIP4\n");
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if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP6)
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dev_dbg(dev, "feature ETH_HW_TSO_IPXIP6\n");
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if (lif->hw_features & IONIC_ETH_HW_TSO_UDP)
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dev_dbg(dev, "feature ETH_HW_TSO_UDP\n");
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if (lif->hw_features & IONIC_ETH_HW_TSO_UDP_CSUM)
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dev_dbg(dev, "feature ETH_HW_TSO_UDP_CSUM\n");
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return 0;
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}
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static int ionic_init_nic_features(struct ionic_lif *lif)
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{
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struct net_device *netdev = lif->netdev;
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netdev_features_t features;
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int err;
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/* set up what we expect to support by default */
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features = NETIF_F_HW_VLAN_CTAG_TX |
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NETIF_F_HW_VLAN_CTAG_RX |
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NETIF_F_HW_VLAN_CTAG_FILTER |
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NETIF_F_RXHASH |
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NETIF_F_SG |
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NETIF_F_HW_CSUM |
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NETIF_F_RXCSUM |
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NETIF_F_TSO |
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NETIF_F_TSO6 |
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NETIF_F_TSO_ECN;
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err = ionic_set_nic_features(lif, features);
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if (err)
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return err;
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/* tell the netdev what we actually can support */
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netdev->features |= NETIF_F_HIGHDMA;
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if (lif->hw_features & IONIC_ETH_HW_VLAN_TX_TAG)
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netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
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if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_STRIP)
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netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
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if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_FILTER)
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netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
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if (lif->hw_features & IONIC_ETH_HW_RX_HASH)
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netdev->hw_features |= NETIF_F_RXHASH;
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if (lif->hw_features & IONIC_ETH_HW_TX_SG)
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netdev->hw_features |= NETIF_F_SG;
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if (lif->hw_features & IONIC_ETH_HW_TX_CSUM)
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netdev->hw_enc_features |= NETIF_F_HW_CSUM;
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if (lif->hw_features & IONIC_ETH_HW_RX_CSUM)
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netdev->hw_enc_features |= NETIF_F_RXCSUM;
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if (lif->hw_features & IONIC_ETH_HW_TSO)
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netdev->hw_enc_features |= NETIF_F_TSO;
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if (lif->hw_features & IONIC_ETH_HW_TSO_IPV6)
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netdev->hw_enc_features |= NETIF_F_TSO6;
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if (lif->hw_features & IONIC_ETH_HW_TSO_ECN)
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netdev->hw_enc_features |= NETIF_F_TSO_ECN;
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if (lif->hw_features & IONIC_ETH_HW_TSO_GRE)
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netdev->hw_enc_features |= NETIF_F_GSO_GRE;
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if (lif->hw_features & IONIC_ETH_HW_TSO_GRE_CSUM)
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netdev->hw_enc_features |= NETIF_F_GSO_GRE_CSUM;
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if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP4)
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netdev->hw_enc_features |= NETIF_F_GSO_IPXIP4;
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if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP6)
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netdev->hw_enc_features |= NETIF_F_GSO_IPXIP6;
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if (lif->hw_features & IONIC_ETH_HW_TSO_UDP)
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netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
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if (lif->hw_features & IONIC_ETH_HW_TSO_UDP_CSUM)
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netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM;
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netdev->hw_features |= netdev->hw_enc_features;
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netdev->features |= netdev->hw_features;
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netdev->priv_flags |= IFF_UNICAST_FLT;
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return 0;
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}
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static int ionic_set_features(struct net_device *netdev,
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netdev_features_t features)
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{
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struct ionic_lif *lif = netdev_priv(netdev);
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int err;
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netdev_dbg(netdev, "%s: lif->features=0x%08llx new_features=0x%08llx\n",
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__func__, (u64)lif->netdev->features, (u64)features);
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err = ionic_set_nic_features(lif, features);
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return err;
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}
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static int ionic_set_mac_address(struct net_device *netdev, void *sa)
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{
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netdev_info(netdev, "%s: stubbed\n", __func__);
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return 0;
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}
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static int ionic_change_mtu(struct net_device *netdev, int new_mtu)
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{
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struct ionic_lif *lif = netdev_priv(netdev);
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struct ionic_admin_ctx ctx = {
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.work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
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.cmd.lif_setattr = {
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.opcode = IONIC_CMD_LIF_SETATTR,
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.index = cpu_to_le16(lif->index),
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.attr = IONIC_LIF_ATTR_MTU,
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.mtu = cpu_to_le32(new_mtu),
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},
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};
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int err;
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err = ionic_adminq_post_wait(lif, &ctx);
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if (err)
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return err;
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netdev->mtu = new_mtu;
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err = ionic_reset_queues(lif);
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return err;
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}
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static void ionic_tx_timeout(struct net_device *netdev)
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{
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netdev_info(netdev, "%s: stubbed\n", __func__);
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}
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static int ionic_vlan_rx_add_vid(struct net_device *netdev, __be16 proto,
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u16 vid)
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{
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netdev_info(netdev, "%s: stubbed\n", __func__);
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return 0;
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}
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static int ionic_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto,
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u16 vid)
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{
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netdev_info(netdev, "%s: stubbed\n", __func__);
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return 0;
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}
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int ionic_open(struct net_device *netdev)
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{
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struct ionic_lif *lif = netdev_priv(netdev);
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netif_carrier_off(netdev);
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set_bit(IONIC_LIF_UP, lif->state);
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return 0;
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}
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int ionic_stop(struct net_device *netdev)
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{
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struct ionic_lif *lif = netdev_priv(netdev);
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int err = 0;
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if (!test_bit(IONIC_LIF_UP, lif->state)) {
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dev_dbg(lif->ionic->dev, "%s: %s state=DOWN\n",
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__func__, lif->name);
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return 0;
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}
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dev_dbg(lif->ionic->dev, "%s: %s state=UP\n", __func__, lif->name);
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clear_bit(IONIC_LIF_UP, lif->state);
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/* carrier off before disabling queues to avoid watchdog timeout */
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netif_carrier_off(netdev);
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return err;
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}
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static const struct net_device_ops ionic_netdev_ops = {
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.ndo_open = ionic_open,
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.ndo_stop = ionic_stop,
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.ndo_set_features = ionic_set_features,
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.ndo_set_mac_address = ionic_set_mac_address,
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.ndo_validate_addr = eth_validate_addr,
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.ndo_tx_timeout = ionic_tx_timeout,
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.ndo_change_mtu = ionic_change_mtu,
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.ndo_vlan_rx_add_vid = ionic_vlan_rx_add_vid,
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.ndo_vlan_rx_kill_vid = ionic_vlan_rx_kill_vid,
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};
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int ionic_reset_queues(struct ionic_lif *lif)
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{
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bool running;
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int err = 0;
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/* Put off the next watchdog timeout */
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netif_trans_update(lif->netdev);
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if (!ionic_wait_for_bit(lif, IONIC_LIF_QUEUE_RESET))
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return -EBUSY;
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running = netif_running(lif->netdev);
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if (running)
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err = ionic_stop(lif->netdev);
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if (!err && running)
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ionic_open(lif->netdev);
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clear_bit(IONIC_LIF_QUEUE_RESET, lif->state);
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return err;
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}
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static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index)
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{
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struct device *dev = ionic->dev;
|
||||
|
|
@ -417,6 +716,12 @@ static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index
|
|||
|
||||
lif = netdev_priv(netdev);
|
||||
lif->netdev = netdev;
|
||||
ionic->master_lif = lif;
|
||||
netdev->netdev_ops = &ionic_netdev_ops;
|
||||
|
||||
netdev->watchdog_timeo = 2 * HZ;
|
||||
netdev->min_mtu = IONIC_MIN_MTU;
|
||||
netdev->max_mtu = IONIC_MAX_MTU;
|
||||
|
||||
lif->neqs = ionic->neqs_per_lif;
|
||||
lif->nxqs = ionic->ntxqs_per_lif;
|
||||
|
|
@ -700,6 +1005,10 @@ static int ionic_lif_init(struct ionic_lif *lif)
|
|||
goto err_out_notifyq_deinit;
|
||||
}
|
||||
|
||||
err = ionic_init_nic_features(lif);
|
||||
if (err)
|
||||
goto err_out_notifyq_deinit;
|
||||
|
||||
set_bit(IONIC_LIF_INITED, lif->state);
|
||||
|
||||
return 0;
|
||||
|
|
@ -734,6 +1043,32 @@ int ionic_lifs_init(struct ionic *ionic)
|
|||
return 0;
|
||||
}
|
||||
|
||||
int ionic_lifs_register(struct ionic *ionic)
|
||||
{
|
||||
int err;
|
||||
|
||||
/* only register LIF0 for now */
|
||||
err = register_netdev(ionic->master_lif->netdev);
|
||||
if (err) {
|
||||
dev_err(ionic->dev, "Cannot register net device, aborting\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
ionic->master_lif->registered = true;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void ionic_lifs_unregister(struct ionic *ionic)
|
||||
{
|
||||
/* There is only one lif ever registered in the
|
||||
* current model, so don't bother searching the
|
||||
* ionic->lif for candidates to unregister
|
||||
*/
|
||||
if (ionic->master_lif->netdev->reg_state == NETREG_REGISTERED)
|
||||
unregister_netdev(ionic->master_lif->netdev);
|
||||
}
|
||||
|
||||
int ionic_lif_identify(struct ionic *ionic, u8 lif_type,
|
||||
union ionic_lif_identity *lid)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -59,6 +59,8 @@ struct ionic_qcq {
|
|||
|
||||
enum ionic_lif_state_flags {
|
||||
IONIC_LIF_INITED,
|
||||
IONIC_LIF_UP,
|
||||
IONIC_LIF_QUEUE_RESET,
|
||||
|
||||
/* leave this as last */
|
||||
IONIC_LIF_STATE_SIZE
|
||||
|
|
@ -82,6 +84,7 @@ struct ionic_lif {
|
|||
u64 last_eid;
|
||||
unsigned int neqs;
|
||||
unsigned int nxqs;
|
||||
u64 hw_features;
|
||||
|
||||
struct ionic_lif_info *info;
|
||||
dma_addr_t info_pa;
|
||||
|
|
@ -93,14 +96,31 @@ struct ionic_lif {
|
|||
u32 flags;
|
||||
};
|
||||
|
||||
static inline int ionic_wait_for_bit(struct ionic_lif *lif, int bitname)
|
||||
{
|
||||
unsigned long tlimit = jiffies + HZ;
|
||||
|
||||
while (test_and_set_bit(bitname, lif->state) &&
|
||||
time_before(jiffies, tlimit))
|
||||
usleep_range(100, 200);
|
||||
|
||||
return test_bit(bitname, lif->state);
|
||||
}
|
||||
|
||||
int ionic_lifs_alloc(struct ionic *ionic);
|
||||
void ionic_lifs_free(struct ionic *ionic);
|
||||
void ionic_lifs_deinit(struct ionic *ionic);
|
||||
int ionic_lifs_init(struct ionic *ionic);
|
||||
int ionic_lifs_register(struct ionic *ionic);
|
||||
void ionic_lifs_unregister(struct ionic *ionic);
|
||||
int ionic_lif_identify(struct ionic *ionic, u8 lif_type,
|
||||
union ionic_lif_identity *lif_ident);
|
||||
int ionic_lifs_size(struct ionic *ionic);
|
||||
|
||||
int ionic_open(struct net_device *netdev);
|
||||
int ionic_stop(struct net_device *netdev);
|
||||
int ionic_reset_queues(struct ionic_lif *lif);
|
||||
|
||||
static inline void debug_stats_napi_poll(struct ionic_qcq *qcq,
|
||||
unsigned int work_done)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue