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Message-Id: <1522518861-9845-6-git-send-email-michael.chan@broadcom.com>
Date: Sat, 31 Mar 2018 13:54:10 -0400
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org
Subject: [PATCH net-next 05/16] bnxt_en: Add support for ndo_set_vf_trust
From: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Trusted VFs are allowed to modify MAC address, even when PF
has assigned one.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 1 +
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 +
drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 41 ++++++++++++++++++++-----
drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h | 3 +-
4 files changed, 37 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 62a1443..527ef26 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -8206,6 +8206,7 @@ static int bnxt_swdev_port_attr_get(struct net_device *dev,
.ndo_set_vf_rate = bnxt_set_vf_bw,
.ndo_set_vf_link_state = bnxt_set_vf_link_state,
.ndo_set_vf_spoofchk = bnxt_set_vf_spoofchk,
+ .ndo_set_vf_trust = bnxt_set_vf_trust,
#endif
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = bnxt_poll_controller,
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 9290d3c..ae7c69b 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -815,6 +815,7 @@ struct bnxt_vf_info {
#define BNXT_VF_SPOOFCHK 0x2
#define BNXT_VF_LINK_FORCED 0x4
#define BNXT_VF_LINK_UP 0x8
+#define BNXT_VF_TRUST 0x10
u32 func_flags; /* func cfg flags */
u32 min_tx_rate;
u32 max_tx_rate;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
index d87faad..a3d368e 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
@@ -1,7 +1,7 @@
/* Broadcom NetXtreme-C/E network driver.
*
* Copyright (c) 2014-2016 Broadcom Corporation
- * Copyright (c) 2016-2017 Broadcom Limited
+ * Copyright (c) 2016-2018 Broadcom Limited
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -121,6 +121,23 @@ int bnxt_set_vf_spoofchk(struct net_device *dev, int vf_id, bool setting)
return rc;
}
+int bnxt_set_vf_trust(struct net_device *dev, int vf_id, bool trusted)
+{
+ struct bnxt *bp = netdev_priv(dev);
+ struct bnxt_vf_info *vf;
+
+ if (bnxt_vf_ndo_prep(bp, vf_id))
+ return -EINVAL;
+
+ vf = &bp->pf.vf[vf_id];
+ if (trusted)
+ vf->flags |= BNXT_VF_TRUST;
+ else
+ vf->flags &= ~BNXT_VF_TRUST;
+
+ return 0;
+}
+
int bnxt_get_vf_config(struct net_device *dev, int vf_id,
struct ifla_vf_info *ivi)
{
@@ -147,6 +164,7 @@ int bnxt_get_vf_config(struct net_device *dev, int vf_id,
else
ivi->qos = 0;
ivi->spoofchk = !!(vf->flags & BNXT_VF_SPOOFCHK);
+ ivi->trusted = !!(vf->flags & BNXT_VF_TRUST);
if (!(vf->flags & BNXT_VF_LINK_FORCED))
ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
else if (vf->flags & BNXT_VF_LINK_UP)
@@ -886,18 +904,19 @@ static int bnxt_hwrm_exec_fwd_resp(struct bnxt *bp, struct bnxt_vf_info *vf,
return rc;
}
-static int bnxt_vf_store_mac(struct bnxt *bp, struct bnxt_vf_info *vf)
+static int bnxt_vf_configure_mac(struct bnxt *bp, struct bnxt_vf_info *vf)
{
u32 msg_size = sizeof(struct hwrm_func_vf_cfg_input);
struct hwrm_func_vf_cfg_input *req =
(struct hwrm_func_vf_cfg_input *)vf->hwrm_cmd_req_addr;
- /* Only allow VF to set a valid MAC address if the PF assigned MAC
- * address is zero
+ /* Allow VF to set a valid MAC address, if trust is set to on or
+ * if the PF assigned MAC address is zero
*/
if (req->enables & cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_DFLT_MAC_ADDR)) {
if (is_valid_ether_addr(req->dflt_mac_addr) &&
- !is_valid_ether_addr(vf->mac_addr)) {
+ ((vf->flags & BNXT_VF_TRUST) ||
+ (!is_valid_ether_addr(vf->mac_addr)))) {
ether_addr_copy(vf->vf_mac_addr, req->dflt_mac_addr);
return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);
}
@@ -913,11 +932,17 @@ static int bnxt_vf_validate_set_mac(struct bnxt *bp, struct bnxt_vf_info *vf)
(struct hwrm_cfa_l2_filter_alloc_input *)vf->hwrm_cmd_req_addr;
bool mac_ok = false;
- /* VF MAC address must first match PF MAC address, if it is valid.
+ if (!is_valid_ether_addr((const u8 *)req->l2_addr))
+ return bnxt_hwrm_fwd_err_resp(bp, vf, msg_size);
+
+ /* Allow VF to set a valid MAC address, if trust is set to on.
+ * Or VF MAC address must first match MAC address in PF's context.
* Otherwise, it must match the VF MAC address if firmware spec >=
* 1.2.2
*/
- if (is_valid_ether_addr(vf->mac_addr)) {
+ if (vf->flags & BNXT_VF_TRUST) {
+ mac_ok = true;
+ } else if (is_valid_ether_addr(vf->mac_addr)) {
if (ether_addr_equal((const u8 *)req->l2_addr, vf->mac_addr))
mac_ok = true;
} else if (is_valid_ether_addr(vf->vf_mac_addr)) {
@@ -993,7 +1018,7 @@ static int bnxt_vf_req_validate_snd(struct bnxt *bp, struct bnxt_vf_info *vf)
switch (req_type) {
case HWRM_FUNC_VF_CFG:
- rc = bnxt_vf_store_mac(bp, vf);
+ rc = bnxt_vf_configure_mac(bp, vf);
break;
case HWRM_CFA_L2_FILTER_ALLOC:
rc = bnxt_vf_validate_set_mac(bp, vf);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h
index dbc8d97..d10f6f6 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h
@@ -1,7 +1,7 @@
/* Broadcom NetXtreme-C/E network driver.
*
* Copyright (c) 2014-2016 Broadcom Corporation
- * Copyright (c) 2016-2017 Broadcom Limited
+ * Copyright (c) 2016-2018 Broadcom Limited
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -17,6 +17,7 @@
int bnxt_set_vf_bw(struct net_device *, int, int, int);
int bnxt_set_vf_link_state(struct net_device *, int, int);
int bnxt_set_vf_spoofchk(struct net_device *, int, bool);
+int bnxt_set_vf_trust(struct net_device *dev, int vf_id, bool trust);
int bnxt_sriov_configure(struct pci_dev *pdev, int num_vfs);
void bnxt_sriov_disable(struct bnxt *);
void bnxt_hwrm_exec_fwd_req(struct bnxt *);
--
1.8.3.1
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