Standard configuration of SRIOV VFs through the host is done over the following chain of calls: libvirt --> netlink --> PF netdevice
When this comes to IB/IPoIB we should normalize this into the verbs framework so we further go: PF IPoIB --> verbs API --> PF HW driver Virtualization systems assign VMs 48 bits mac, to allow working with non-modified SW layers (open-stack, libvirt, etc), we can safely extend this mac to unique 64 bits GUID. Hence the IPoIB ndo_set_vf_mac entry calls the set_vf_guid verb. Signed-off-by: Or Gerlitz <[email protected]> --- drivers/infiniband/ulp/ipoib/ipoib_main.c | 39 +++++++++++++++++++++++++++++ include/rdma/ib_verbs.h | 4 +++ 2 files changed, 43 insertions(+), 0 deletions(-) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 9e1b203..8f82870 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1357,6 +1357,43 @@ void ipoib_dev_cleanup(struct net_device *dev) priv->tx_ring = NULL; } +static int ipoib_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivf) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + + if (priv->ca->get_vf_config) + return priv->ca->get_vf_config(priv->ca, priv->port, vf, ivf); + else + return -EINVAL; +} + +static int ipoib_set_vf_mac(struct net_device *dev, int queue, u8 *mac) +{ + char *raw_guid; + u64 guid = 0; + + struct ipoib_dev_priv *priv = netdev_priv(dev); + + raw_guid = (char *)&guid; + raw_guid[0] = mac[0]; + raw_guid[1] = mac[1]; + raw_guid[2] = mac[2]; + raw_guid[3] = 0xff; + raw_guid[4] = 0xfe; + raw_guid[5] = mac[3]; + raw_guid[6] = mac[4]; + raw_guid[7] = mac[5]; + + guid &= ~(cpu_to_be64(1ULL << 56)); + guid |= cpu_to_be64(1ULL << 57); + + if (priv->ca->set_vf_guid) + return priv->ca->set_vf_guid(priv->ca, priv->port, queue, guid); + else + return -EINVAL; +} + + static const struct header_ops ipoib_header_ops = { .create = ipoib_hard_header, }; @@ -1371,6 +1408,8 @@ static const struct net_device_ops ipoib_netdev_ops = { .ndo_tx_timeout = ipoib_timeout, .ndo_set_rx_mode = ipoib_set_mcast_list, .ndo_get_iflink = ipoib_get_iflink, + .ndo_get_vf_config = ipoib_get_vf_config, + .ndo_set_vf_mac = ipoib_set_vf_mac, }; void ipoib_setup(struct net_device *dev) diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 65994a1..6589520 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -53,6 +53,7 @@ #include <linux/atomic.h> #include <linux/mmu_notifier.h> #include <asm/uaccess.h> +#include <linux/if_link.h> extern struct workqueue_struct *ib_wq; @@ -1653,6 +1654,9 @@ struct ib_device { int (*check_mr_status)(struct ib_mr *mr, u32 check_mask, struct ib_mr_status *mr_status); + int (*set_vf_guid) (struct ib_device *device, int port, int vf, u64 guid); + int (*get_vf_config)(struct ib_device *device, int port, int vf, struct ifla_vf_info *ivf); + struct ib_dma_mapping_ops *dma_ops; struct module *owner; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
