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Message-ID: <1392221997-25525-7-git-send-email-yuvalmin@broadcom.com>
Date: Wed, 12 Feb 2014 18:19:54 +0200
From: Yuval Mintz <yuvalmin@...adcom.com>
To: <davem@...emloft.net>, <netdev@...r.kernel.org>
CC: <ariele@...adcom.com>, Yuval Mintz <yuvalmin@...adcom.com>
Subject: [PATCH net-next 6/9] bnx2x: Revise IOV vlan/mac validation
There are several places in IOV related flows where PF needs to determine
whether a VF slowpath elements have already been configured (i.e., this
affect its ability to configure/remove classifications for the VF).
This patch changes the conditions for the validation and performs a cleaner
validation (e.g., by replacing several validations with a single one).
Signed-off-by: Yuval Mintz <yuvalmin@...adcom.com>
Signed-off-by: Ariel Elior <ariele@...adcom.com>
---
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c | 10 --
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h | 2 -
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 127 +++++++++++-----------
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h | 1 +
drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 1 +
5 files changed, 67 insertions(+), 74 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index 270ba19..31297266 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -4158,16 +4158,6 @@ void bnx2x_init_rss_config_obj(struct bnx2x *bp,
rss_obj->config_rss = bnx2x_setup_rss;
}
-int validate_vlan_mac(struct bnx2x *bp,
- struct bnx2x_vlan_mac_obj *vlan_mac)
-{
- if (!vlan_mac->get_n_elements) {
- BNX2X_ERR("vlan mac object was not intialized\n");
- return -EINVAL;
- }
- return 0;
-}
-
/********************** Queue state object ***********************************/
/**
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
index f7af21f..80f6c79 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
@@ -1422,6 +1422,4 @@ int bnx2x_config_rss(struct bnx2x *bp,
void bnx2x_get_rss_ind_table(struct bnx2x_rss_config_obj *rss_obj,
u8 *ind_table);
-int validate_vlan_mac(struct bnx2x *bp,
- struct bnx2x_vlan_mac_obj *vlan_mac);
#endif /* BNX2X_SP_VERBS */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index e72070a..8af71d3 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -102,6 +102,21 @@ static void bnx2x_vf_igu_ack_sb(struct bnx2x *bp, struct bnx2x_virtf *vf,
mmiowb();
barrier();
}
+
+static bool bnx2x_validate_vf_sp_objs(struct bnx2x *bp,
+ struct bnx2x_virtf *vf,
+ bool print_err)
+{
+ if (!bnx2x_leading_vfq(vf, sp_initialized)) {
+ if (print_err)
+ BNX2X_ERR("Slowpath objects not yet initialized!\n");
+ else
+ DP(BNX2X_MSG_IOV, "Slowpath objects not yet initialized!\n");
+ return false;
+ }
+ return true;
+}
+
/* VFOP - VF slow-path operation support */
#define BNX2X_VFOP_FILTER_ADD_CNT_MAX 0x10000
@@ -721,7 +736,6 @@ static int bnx2x_vfop_mac_delall_cmd(struct bnx2x *bp,
int qid, bool drv_only)
{
struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
- int rc;
if (vfop) {
struct bnx2x_vfop_args_filters filters = {
@@ -741,9 +755,6 @@ static int bnx2x_vfop_mac_delall_cmd(struct bnx2x *bp,
bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
/* set object */
- rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj));
- if (rc)
- return rc;
ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
/* set extra args */
@@ -763,9 +774,12 @@ int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp,
struct bnx2x_vfop_filters *macs,
int qid, bool drv_only)
{
- struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
- int rc;
+ struct bnx2x_vfop *vfop;
+ if (!bnx2x_validate_vf_sp_objs(bp, vf, true))
+ return -EINVAL;
+
+ vfop = bnx2x_vfop_add(bp, vf);
if (vfop) {
struct bnx2x_vfop_args_filters filters = {
.multi_filter = macs,
@@ -787,9 +801,6 @@ int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp,
bnx2x_vfop_mac_prep_ramrod(ramrod, &flags);
/* set object */
- rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj));
- if (rc)
- return rc;
ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
/* set extra args */
@@ -809,9 +820,12 @@ static int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp,
struct bnx2x_vfop_cmd *cmd,
int qid, u16 vid, bool add)
{
- struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
- int rc;
+ struct bnx2x_vfop *vfop;
+
+ if (!bnx2x_validate_vf_sp_objs(bp, vf, true))
+ return -EINVAL;
+ vfop = bnx2x_vfop_add(bp, vf);
if (vfop) {
struct bnx2x_vfop_args_filters filters = {
.multi_filter = NULL, /* single command */
@@ -831,9 +845,6 @@ static int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp,
ramrod->user_req.u.vlan.vlan = vid;
/* set object */
- rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
- if (rc)
- return rc;
ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
/* set extra args */
@@ -853,7 +864,6 @@ static int bnx2x_vfop_vlan_delall_cmd(struct bnx2x *bp,
int qid, bool drv_only)
{
struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
- int rc;
if (vfop) {
struct bnx2x_vfop_args_filters filters = {
@@ -873,9 +883,6 @@ static int bnx2x_vfop_vlan_delall_cmd(struct bnx2x *bp,
bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
/* set object */
- rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
- if (rc)
- return rc;
ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
/* set extra args */
@@ -895,9 +902,12 @@ int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp,
struct bnx2x_vfop_filters *vlans,
int qid, bool drv_only)
{
- struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
- int rc;
+ struct bnx2x_vfop *vfop;
+
+ if (!bnx2x_validate_vf_sp_objs(bp, vf, true))
+ return -EINVAL;
+ vfop = bnx2x_vfop_add(bp, vf);
if (vfop) {
struct bnx2x_vfop_args_filters filters = {
.multi_filter = vlans,
@@ -916,9 +926,6 @@ int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp,
bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags);
/* set object */
- rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj));
- if (rc)
- return rc;
ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
/* set extra args */
@@ -1030,34 +1037,20 @@ static void bnx2x_vfop_qflr(struct bnx2x *bp, struct bnx2x_virtf *vf)
/* vlan-clear-all: driver-only, don't consume credit */
vfop->state = BNX2X_VFOP_QFLR_CLR_MAC;
- if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj))) {
- /* the vlan_mac vfop will re-schedule us */
- vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd,
- qid, true);
- if (vfop->rc)
- goto op_err;
- return;
-
- } else {
- /* need to reschedule ourselves */
- bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
- }
+ /* the vlan_mac vfop will re-schedule us */
+ vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, true);
+ if (vfop->rc)
+ goto op_err;
+ return;
case BNX2X_VFOP_QFLR_CLR_MAC:
/* mac-clear-all: driver only consume credit */
vfop->state = BNX2X_VFOP_QFLR_TERMINATE;
- if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj))) {
- /* the vlan_mac vfop will re-schedule us */
- vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd,
- qid, true);
- if (vfop->rc)
- goto op_err;
- return;
-
- } else {
- /* need to reschedule ourselves */
- bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
- }
+ /* the vlan_mac vfop will re-schedule us */
+ vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, true);
+ if (vfop->rc)
+ goto op_err;
+ return;
case BNX2X_VFOP_QFLR_TERMINATE:
qstate = &vfop->op_p->qctor.qstate;
@@ -1100,8 +1093,13 @@ static int bnx2x_vfop_qflr_cmd(struct bnx2x *bp,
if (vfop) {
vfop->args.qx.qid = qid;
- bnx2x_vfop_opset(BNX2X_VFOP_QFLR_CLR_VLAN,
- bnx2x_vfop_qflr, cmd->done);
+ if ((qid == LEADING_IDX) &&
+ bnx2x_validate_vf_sp_objs(bp, vf, false))
+ bnx2x_vfop_opset(BNX2X_VFOP_QFLR_CLR_VLAN,
+ bnx2x_vfop_qflr, cmd->done);
+ else
+ bnx2x_vfop_opset(BNX2X_VFOP_QFLR_TERMINATE,
+ bnx2x_vfop_qflr, cmd->done);
return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qflr,
cmd->block);
}
@@ -1315,7 +1313,10 @@ static void bnx2x_vfop_qdown(struct bnx2x *bp, struct bnx2x_virtf *vf)
switch (state) {
case BNX2X_VFOP_QTEARDOWN_RXMODE:
/* Drop all */
- vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_VLAN;
+ if (bnx2x_validate_vf_sp_objs(bp, vf, true))
+ vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_VLAN;
+ else
+ vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR;
vfop->rc = bnx2x_vfop_rxmode_cmd(bp, vf, &cmd, qid, 0);
if (vfop->rc)
goto op_err;
@@ -2171,6 +2172,9 @@ static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
bnx2x_vf_sp_map(bp, vf, q_data),
q_type);
+ /* sp indication is set only when vlan/mac/etc. are initialized */
+ q->sp_initialized = false;
+
DP(BNX2X_MSG_IOV,
"initialized vf %d's queue object. func id set to %d. cid set to 0x%x\n",
vf->abs_vfid, q->sp_obj.func_id, q->cid);
@@ -3478,13 +3482,13 @@ int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
ivi->spoofchk = 1; /*always enabled */
if (vf->state == VF_ENABLED) {
/* mac and vlan are in vlan_mac objects */
- if (validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj)))
+ if (bnx2x_validate_vf_sp_objs(bp, vf, false)) {
mac_obj->get_n_elements(bp, mac_obj, 1, (u8 *)&ivi->mac,
0, ETH_ALEN);
- if (validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, vlan_obj)))
vlan_obj->get_n_elements(bp, vlan_obj, 1,
(u8 *)&ivi->vlan, 0,
VLAN_HLEN);
+ }
} else {
/* mac */
if (bulletin->valid_bitmap & (1 << MAC_ADDR_VALID))
@@ -3558,17 +3562,17 @@ int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac)
q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) {
/* configure the mac in device on this vf's queue */
unsigned long ramrod_flags = 0;
- struct bnx2x_vlan_mac_obj *mac_obj =
- &bnx2x_leading_vfq(vf, mac_obj);
+ struct bnx2x_vlan_mac_obj *mac_obj;
- rc = validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj));
- if (rc)
- return rc;
+ /* User should be able to see failure reason in system logs */
+ if (!bnx2x_validate_vf_sp_objs(bp, vf, true))
+ return -EINVAL;
/* must lock vfpf channel to protect against vf flows */
bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
/* remove existing eth macs */
+ mac_obj = &bnx2x_leading_vfq(vf, mac_obj);
rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true);
if (rc) {
BNX2X_ERR("failed to delete eth macs\n");
@@ -3642,17 +3646,16 @@ int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos)
BNX2X_Q_LOGICAL_STATE_ACTIVE)
return rc;
- /* configure the vlan in device on this vf's queue */
- vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj);
- rc = validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj));
- if (rc)
- return rc;
+ /* User should be able to see error in system logs */
+ if (!bnx2x_validate_vf_sp_objs(bp, vf, true))
+ return -EINVAL;
/* must lock vfpf channel to protect against vf flows */
bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
/* remove existing vlans */
__set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
+ vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj);
rc = vlan_obj->delete_all(bp, vlan_obj, &vlan_mac_flags,
&ramrod_flags);
if (rc) {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index 9b60e80..b1dc751 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -83,6 +83,7 @@ struct bnx2x_vf_queue {
u16 index;
u16 sb_idx;
bool is_leading;
+ bool sp_initialized;
};
/* struct bnx2x_vfop_qctor_params - prepare queue construction parameters:
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index dfaed28..1117ed7 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -548,6 +548,7 @@ static void bnx2x_leading_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
vf->leading_rss = cl_id;
q->is_leading = true;
+ q->sp_initialized = true;
}
/* ask the pf to open a queue for the vf */
--
1.8.1.227.g44fe835
--
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