[PATCH net-next 1/6] qed: Pass MAC hints to VFs
From: Yuval Mintz <hidden>
Date: 2016-10-09 16:18:15
Subsystem:
networking drivers, qlogic ql4xxx ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Yuval Mintz <redacted> Some hypervisors can support MAC hints to their VFs. Even though we don't have such a hypervisor API in linux, we add sufficient logic for the VF to be able to receive such hints and set the mac accordingly - as long as the VF has not been set with a MAC already. Signed-off-by: Yuval Mintz <redacted> --- drivers/net/ethernet/qlogic/qed/qed_vf.c | 4 ++-- drivers/net/ethernet/qlogic/qede/qede_main.c | 6 +++++- include/linux/qed/qed_eth_if.h | 2 +- 3 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c
index abf5bf1..f580bf4 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_vf.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c@@ -1230,8 +1230,8 @@ static void qed_handle_bulletin_change(struct qed_hwfn *hwfn) is_mac_exist = qed_vf_bulletin_get_forced_mac(hwfn, mac, &is_mac_forced); - if (is_mac_exist && is_mac_forced && cookie) - ops->force_mac(cookie, mac); + if (is_mac_exist && cookie) + ops->force_mac(cookie, mac, !!is_mac_forced); /* Always update link configuration according to bulletin */ qed_link_update(hwfn);
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 343038c..9866d95 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c@@ -171,10 +171,14 @@ static struct pci_driver qede_pci_driver = { #endif }; -static void qede_force_mac(void *dev, u8 *mac) +static void qede_force_mac(void *dev, u8 *mac, bool forced) { struct qede_dev *edev = dev; + /* MAC hints take effect only if we haven't set one already */ + if (is_valid_ether_addr(edev->ndev->dev_addr) && !forced) + return; + ether_addr_copy(edev->ndev->dev_addr, mac); ether_addr_copy(edev->primary_mac, mac); }
diff --git a/include/linux/qed/qed_eth_if.h b/include/linux/qed/qed_eth_if.h
index 33c24eb..1c77948 100644
--- a/include/linux/qed/qed_eth_if.h
+++ b/include/linux/qed/qed_eth_if.h@@ -129,7 +129,7 @@ struct qed_tunn_params { struct qed_eth_cb_ops { struct qed_common_cb_ops common; - void (*force_mac) (void *dev, u8 *mac); + void (*force_mac) (void *dev, u8 *mac, bool forced); }; #ifdef CONFIG_DCB
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1.9.3