netdev - [PATCH net-next 13/14] bnxt_en: Reserve RSS and L2 contexts for VF.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1524703257-12812-14-git-send-email-michael.chan@broadcom.com>
Date:   Wed, 25 Apr 2018 20:40:56 -0400
From:   Michael Chan <michael.chan@...adcom.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org
Subject: [PATCH net-next 13/14] bnxt_en: Reserve RSS and L2 contexts for VF.

For completeness and correctness, the VF driver needs to reserve these
RSS and L2 contexts.

Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c       |  4 ++++
 drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 10 +++++-----
 drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h |  5 +++++
 3 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 0884e49..fee1c0d 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -4713,6 +4713,10 @@ int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings)
 
 	__bnxt_hwrm_reserve_vf_rings(bp, &req, tx_rings, rx_rings, ring_grps,
 				     cp_rings, vnics);
+	req.enables |= cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS |
+				   FUNC_VF_CFG_REQ_ENABLES_NUM_L2_CTXS);
+	req.num_rsscos_ctxs = cpu_to_le16(BNXT_VF_MAX_RSS_CTX);
+	req.num_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);
 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 	if (rc)
 		return -ENOMEM;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
index 18ee471..cc21d87 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
@@ -462,13 +462,13 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs)
 	vf_vnics = hw_resc->max_vnics - bp->nr_vnics;
 	vf_vnics = min_t(u16, vf_vnics, vf_rx_rings);
 
-	req.min_rsscos_ctx = cpu_to_le16(1);
-	req.max_rsscos_ctx = cpu_to_le16(1);
+	req.min_rsscos_ctx = cpu_to_le16(BNXT_VF_MIN_RSS_CTX);
+	req.max_rsscos_ctx = cpu_to_le16(BNXT_VF_MAX_RSS_CTX);
 	if (pf->vf_resv_strategy == BNXT_VF_RESV_STRATEGY_MINIMAL) {
 		req.min_cmpl_rings = cpu_to_le16(1);
 		req.min_tx_rings = cpu_to_le16(1);
 		req.min_rx_rings = cpu_to_le16(1);
-		req.min_l2_ctxs = cpu_to_le16(1);
+		req.min_l2_ctxs = cpu_to_le16(BNXT_VF_MIN_L2_CTX);
 		req.min_vnics = cpu_to_le16(1);
 		req.min_stat_ctx = cpu_to_le16(1);
 		req.min_hw_ring_grps = cpu_to_le16(1);
@@ -483,7 +483,7 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs)
 		req.min_cmpl_rings = cpu_to_le16(vf_cp_rings);
 		req.min_tx_rings = cpu_to_le16(vf_tx_rings);
 		req.min_rx_rings = cpu_to_le16(vf_rx_rings);
-		req.min_l2_ctxs = cpu_to_le16(4);
+		req.min_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);
 		req.min_vnics = cpu_to_le16(vf_vnics);
 		req.min_stat_ctx = cpu_to_le16(vf_stat_ctx);
 		req.min_hw_ring_grps = cpu_to_le16(vf_ring_grps);
@@ -491,7 +491,7 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs)
 	req.max_cmpl_rings = cpu_to_le16(vf_cp_rings);
 	req.max_tx_rings = cpu_to_le16(vf_tx_rings);
 	req.max_rx_rings = cpu_to_le16(vf_rx_rings);
-	req.max_l2_ctxs = cpu_to_le16(4);
+	req.max_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);
 	req.max_vnics = cpu_to_le16(vf_vnics);
 	req.max_stat_ctx = cpu_to_le16(vf_stat_ctx);
 	req.max_hw_ring_grps = cpu_to_le16(vf_ring_grps);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h
index 6f6d850..e9b20cd 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.h
@@ -23,6 +23,11 @@
 	((offsetof(struct hwrm_reject_fwd_resp_input, encap_request) + n) >\
 	 offsetof(struct hwrm_reject_fwd_resp_input, encap_resp_target_id))
 
+#define BNXT_VF_MIN_RSS_CTX	1
+#define BNXT_VF_MAX_RSS_CTX	1
+#define BNXT_VF_MIN_L2_CTX	1
+#define BNXT_VF_MAX_L2_CTX	4
+
 int bnxt_get_vf_config(struct net_device *, int, struct ifla_vf_info *);
 int bnxt_set_vf_mac(struct net_device *, int, u8 *);
 int bnxt_set_vf_vlan(struct net_device *, int, u16, u8, __be16);
-- 
1.8.3.1