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Date: Thu, 26 Jun 2014 14:31:04 +0300
From: Yuval Mintz <Yuval.Mintz@...gic.com>
To: <davem@...emloft.net>, <netdev@...r.kernel.org>
CC: <Ariel.Elior@...gic.com>,
Dmitry Kravkov <Dmitry.Kravkov@...gic.com>,
Yuval Mintz <Yuval.Mintz@...gic.com>
Subject: [PATCH net-next 1/3] bnx2x: VF can report link speed
From: Dmitry Kravkov <Dmitry.Kravkov@...gic.com>
Until now VFs were oblvious to the actual configured link parameters.
This patch does 2 things:
1. It enables a PF to inform its VF using the bulletin board of the link
configured, and allows the VF to present that information.
2. It adds support of `ndo_set_vf_link_state', allowing the hypervisor
to set the VF link state.
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@...gic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@...gic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@...gic.com>
---
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 3 +
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 55 +++--
.../net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 44 +++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 9 +
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 261 ++++++++++++++++-----
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h | 35 ++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 30 ++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h | 17 +-
8 files changed, 366 insertions(+), 88 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 4cab09d..faf262a 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1482,6 +1482,7 @@ struct bnx2x {
union pf_vf_bulletin *pf2vf_bulletin;
dma_addr_t pf2vf_bulletin_mapping;
+ union pf_vf_bulletin shadow_bulletin;
struct pf_vf_bulletin_content old_bulletin;
u16 requested_nr_virtfn;
@@ -1928,6 +1929,8 @@ struct bnx2x {
struct semaphore stats_sema;
u8 phys_port_id[ETH_ALEN];
+
+ struct bnx2x_link_report_data vf_link_vars;
};
/* Tx queues may be less or equal to Rx queues */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 47c5814..cb15e3a 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -1185,29 +1185,38 @@ u16 bnx2x_get_mf_speed(struct bnx2x *bp)
static void bnx2x_fill_report_data(struct bnx2x *bp,
struct bnx2x_link_report_data *data)
{
- u16 line_speed = bnx2x_get_mf_speed(bp);
-
memset(data, 0, sizeof(*data));
- /* Fill the report data: effective line speed */
- data->line_speed = line_speed;
-
- /* Link is down */
- if (!bp->link_vars.link_up || (bp->flags & MF_FUNC_DIS))
- __set_bit(BNX2X_LINK_REPORT_LINK_DOWN,
- &data->link_report_flags);
-
- /* Full DUPLEX */
- if (bp->link_vars.duplex == DUPLEX_FULL)
- __set_bit(BNX2X_LINK_REPORT_FD, &data->link_report_flags);
-
- /* Rx Flow Control is ON */
- if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX)
- __set_bit(BNX2X_LINK_REPORT_RX_FC_ON, &data->link_report_flags);
-
- /* Tx Flow Control is ON */
- if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX)
- __set_bit(BNX2X_LINK_REPORT_TX_FC_ON, &data->link_report_flags);
+ if (IS_PF(bp)) {
+ /* Fill the report data: effective line speed */
+ data->line_speed = bnx2x_get_mf_speed(bp);
+
+ /* Link is down */
+ if (!bp->link_vars.link_up || (bp->flags & MF_FUNC_DIS))
+ __set_bit(BNX2X_LINK_REPORT_LINK_DOWN,
+ &data->link_report_flags);
+
+ if (!BNX2X_NUM_ETH_QUEUES(bp))
+ __set_bit(BNX2X_LINK_REPORT_LINK_DOWN,
+ &data->link_report_flags);
+
+ /* Full DUPLEX */
+ if (bp->link_vars.duplex == DUPLEX_FULL)
+ __set_bit(BNX2X_LINK_REPORT_FD,
+ &data->link_report_flags);
+
+ /* Rx Flow Control is ON */
+ if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX)
+ __set_bit(BNX2X_LINK_REPORT_RX_FC_ON,
+ &data->link_report_flags);
+
+ /* Tx Flow Control is ON */
+ if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX)
+ __set_bit(BNX2X_LINK_REPORT_TX_FC_ON,
+ &data->link_report_flags);
+ } else { /* VF */
+ *data = bp->vf_link_vars;
+ }
}
/**
@@ -1261,6 +1270,10 @@ void __bnx2x_link_report(struct bnx2x *bp)
*/
memcpy(&bp->last_reported_link, &cur_data, sizeof(cur_data));
+ /* propagate status to VFs */
+ if (IS_PF(bp))
+ bnx2x_iov_link_update(bp);
+
if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN,
&cur_data.link_report_flags)) {
netif_carrier_off(bp->dev);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index bd0600c..08ea91c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -216,6 +216,43 @@ static int bnx2x_get_port_type(struct bnx2x *bp)
return port_type;
}
+static int bnx2x_get_vf_settings(struct net_device *dev,
+ struct ethtool_cmd *cmd)
+{
+ struct bnx2x *bp = netdev_priv(dev);
+
+ if (bp->state == BNX2X_STATE_OPEN) {
+ if (test_bit(BNX2X_LINK_REPORT_FD,
+ &bp->vf_link_vars.link_report_flags))
+ cmd->duplex = DUPLEX_FULL;
+ else
+ cmd->duplex = DUPLEX_HALF;
+
+ ethtool_cmd_speed_set(cmd, bp->vf_link_vars.line_speed);
+ } else {
+ cmd->duplex = DUPLEX_UNKNOWN;
+ ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
+ }
+
+ cmd->port = PORT_OTHER;
+ cmd->phy_address = 0;
+ cmd->transceiver = XCVR_INTERNAL;
+ cmd->autoneg = AUTONEG_DISABLE;
+ cmd->maxtxpkt = 0;
+ cmd->maxrxpkt = 0;
+
+ DP(BNX2X_MSG_ETHTOOL, "ethtool_cmd: cmd %d\n"
+ " supported 0x%x advertising 0x%x speed %u\n"
+ " duplex %d port %d phy_address %d transceiver %d\n"
+ " autoneg %d maxtxpkt %d maxrxpkt %d\n",
+ cmd->cmd, cmd->supported, cmd->advertising,
+ ethtool_cmd_speed(cmd),
+ cmd->duplex, cmd->port, cmd->phy_address, cmd->transceiver,
+ cmd->autoneg, cmd->maxtxpkt, cmd->maxrxpkt);
+
+ return 0;
+}
+
static int bnx2x_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct bnx2x *bp = netdev_priv(dev);
@@ -1110,6 +1147,10 @@ static u32 bnx2x_get_link(struct net_device *dev)
if (bp->flags & MF_FUNC_DIS || (bp->state != BNX2X_STATE_OPEN))
return 0;
+ if (IS_VF(bp))
+ return !test_bit(BNX2X_LINK_REPORT_LINK_DOWN,
+ &bp->vf_link_vars.link_report_flags);
+
return bp->link_vars.link_up;
}
@@ -3484,8 +3525,7 @@ static const struct ethtool_ops bnx2x_ethtool_ops = {
};
static const struct ethtool_ops bnx2x_vf_ethtool_ops = {
- .get_settings = bnx2x_get_settings,
- .set_settings = bnx2x_set_settings,
+ .get_settings = bnx2x_get_vf_settings,
.get_drvinfo = bnx2x_get_drvinfo,
.get_msglevel = bnx2x_get_msglevel,
.set_msglevel = bnx2x_set_msglevel,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 2887034..6af9e3c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -2698,6 +2698,14 @@ void bnx2x__link_status_update(struct bnx2x *bp)
bp->link_vars.duplex = DUPLEX_FULL;
bp->link_vars.flow_ctrl = BNX2X_FLOW_CTRL_NONE;
__bnx2x_link_report(bp);
+
+ bnx2x_sample_bulletin(bp);
+
+ /* if bulletin board did not have an update for link status
+ * __bnx2x_link_report will report current status
+ * but it will NOT duplicate report in case of already reported
+ * during sampling bulletin board.
+ */
bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
}
}
@@ -12424,6 +12432,7 @@ static const struct net_device_ops bnx2x_netdev_ops = {
.ndo_busy_poll = bnx2x_low_latency_recv,
#endif
.ndo_get_phys_port_id = bnx2x_get_phys_port_id,
+ .ndo_set_vf_link_state = bnx2x_set_vf_link_state,
};
static int bnx2x_set_coherency_mask(struct bnx2x *bp)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index c9988e3..662310c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -24,6 +24,11 @@
#include <linux/crc32.h>
#include <linux/if_vlan.h>
+static int bnx2x_vf_op_prep(struct bnx2x *bp, int vfidx,
+ struct bnx2x_virtf **vf,
+ struct pf_vf_bulletin_content **bulletin,
+ bool test_queue);
+
/* General service functions */
static void storm_memset_vf_to_pf(struct bnx2x *bp, u16 abs_fid,
u16 pf_id)
@@ -1327,6 +1332,8 @@ int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param,
/* Prepare the VFs event synchronization mechanism */
mutex_init(&bp->vfdb->event_mutex);
+ mutex_init(&bp->vfdb->bulletin_mutex);
+
return 0;
failed:
DP(BNX2X_MSG_IOV, "Failed err=%d\n", err);
@@ -1472,6 +1479,107 @@ static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
vf->abs_vfid, q->sp_obj.func_id, q->cid);
}
+static int bnx2x_max_speed_cap(struct bnx2x *bp)
+{
+ u32 supported = bp->port.supported[bnx2x_get_link_cfg_idx(bp)];
+
+ if (supported &
+ (SUPPORTED_20000baseMLD2_Full | SUPPORTED_20000baseKR2_Full))
+ return 20000;
+
+ return 10000; /* assume lowest supported speed is 10G */
+}
+
+int bnx2x_iov_link_update_vf(struct bnx2x *bp, int idx)
+{
+ struct bnx2x_link_report_data *state = &bp->last_reported_link;
+ struct pf_vf_bulletin_content *bulletin;
+ struct bnx2x_virtf *vf;
+ bool update = true;
+ int rc = 0;
+
+ /* sanity and init */
+ rc = bnx2x_vf_op_prep(bp, idx, &vf, &bulletin, false);
+ if (rc)
+ return rc;
+
+ mutex_lock(&bp->vfdb->bulletin_mutex);
+
+ if (vf->link_cfg == IFLA_VF_LINK_STATE_AUTO) {
+ bulletin->valid_bitmap |= 1 << LINK_VALID;
+
+ bulletin->link_speed = state->line_speed;
+ bulletin->link_flags = 0;
+ if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN,
+ &state->link_report_flags))
+ bulletin->link_flags |= VFPF_LINK_REPORT_LINK_DOWN;
+ if (test_bit(BNX2X_LINK_REPORT_FD,
+ &state->link_report_flags))
+ bulletin->link_flags |= VFPF_LINK_REPORT_FULL_DUPLEX;
+ if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON,
+ &state->link_report_flags))
+ bulletin->link_flags |= VFPF_LINK_REPORT_RX_FC_ON;
+ if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON,
+ &state->link_report_flags))
+ bulletin->link_flags |= VFPF_LINK_REPORT_TX_FC_ON;
+ } else if (vf->link_cfg == IFLA_VF_LINK_STATE_DISABLE &&
+ !(bulletin->link_flags & VFPF_LINK_REPORT_LINK_DOWN)) {
+ bulletin->valid_bitmap |= 1 << LINK_VALID;
+ bulletin->link_flags |= VFPF_LINK_REPORT_LINK_DOWN;
+ } else if (vf->link_cfg == IFLA_VF_LINK_STATE_ENABLE &&
+ (bulletin->link_flags & VFPF_LINK_REPORT_LINK_DOWN)) {
+ bulletin->valid_bitmap |= 1 << LINK_VALID;
+ bulletin->link_speed = bnx2x_max_speed_cap(bp);
+ bulletin->link_flags &= ~VFPF_LINK_REPORT_LINK_DOWN;
+ } else {
+ update = false;
+ }
+
+ if (update) {
+ DP(NETIF_MSG_LINK | BNX2X_MSG_IOV,
+ "vf %d mode %u speed %d flags %x\n", idx,
+ vf->link_cfg, bulletin->link_speed, bulletin->link_flags);
+
+ /* Post update on VF's bulletin board */
+ rc = bnx2x_post_vf_bulletin(bp, idx);
+ if (rc) {
+ BNX2X_ERR("failed to update VF[%d] bulletin\n", idx);
+ goto out;
+ }
+ }
+
+out:
+ mutex_unlock(&bp->vfdb->bulletin_mutex);
+ return rc;
+}
+
+int bnx2x_set_vf_link_state(struct net_device *dev, int idx, int link_state)
+{
+ struct bnx2x *bp = netdev_priv(dev);
+ struct bnx2x_virtf *vf = BP_VF(bp, idx);
+
+ if (!vf)
+ return -EINVAL;
+
+ if (vf->link_cfg == link_state)
+ return 0; /* nothing todo */
+
+ vf->link_cfg = link_state;
+
+ return bnx2x_iov_link_update_vf(bp, idx);
+}
+
+void bnx2x_iov_link_update(struct bnx2x *bp)
+{
+ int vfid;
+
+ if (!IS_SRIOV(bp))
+ return;
+
+ for_each_vf(bp, vfid)
+ bnx2x_iov_link_update_vf(bp, vfid);
+}
+
/* called by bnx2x_nic_load */
int bnx2x_iov_nic_init(struct bnx2x *bp)
{
@@ -2509,22 +2617,23 @@ void bnx2x_disable_sriov(struct bnx2x *bp)
pci_disable_sriov(bp->pdev);
}
-static int bnx2x_vf_ndo_prep(struct bnx2x *bp, int vfidx,
- struct bnx2x_virtf **vf,
- struct pf_vf_bulletin_content **bulletin)
+static int bnx2x_vf_op_prep(struct bnx2x *bp, int vfidx,
+ struct bnx2x_virtf **vf,
+ struct pf_vf_bulletin_content **bulletin,
+ bool test_queue)
{
if (bp->state != BNX2X_STATE_OPEN) {
- BNX2X_ERR("vf ndo called though PF is down\n");
+ BNX2X_ERR("PF is down - can't utilize iov-related functionality\n");
return -EINVAL;
}
if (!IS_SRIOV(bp)) {
- BNX2X_ERR("vf ndo called though sriov is disabled\n");
+ BNX2X_ERR("sriov is disabled - can't utilize iov-realted functionality\n");
return -EINVAL;
}
if (vfidx >= BNX2X_NR_VIRTFN(bp)) {
- BNX2X_ERR("vf ndo called for uninitialized VF. vfidx was %d BNX2X_NR_VIRTFN was %d\n",
+ BNX2X_ERR("VF is uninitialized - can't utilize iov-related functionality. vfidx was %d BNX2X_NR_VIRTFN was %d\n",
vfidx, BNX2X_NR_VIRTFN(bp));
return -EINVAL;
}
@@ -2534,19 +2643,18 @@ static int bnx2x_vf_ndo_prep(struct bnx2x *bp, int vfidx,
*bulletin = BP_VF_BULLETIN(bp, vfidx);
if (!*vf) {
- BNX2X_ERR("vf ndo called but vf struct is null. vfidx was %d\n",
- vfidx);
+ BNX2X_ERR("Unable to get VF structure for vfidx %d\n", vfidx);
return -EINVAL;
}
- if (!(*vf)->vfqs) {
- BNX2X_ERR("vf ndo called but vfqs struct is null. Was ndo invoked before dynamically enabling SR-IOV? vfidx was %d\n",
+ if (test_queue && !(*vf)->vfqs) {
+ BNX2X_ERR("vfqs struct is null. Was this invoked before dynamically enabling SR-IOV? vfidx was %d\n",
vfidx);
return -EINVAL;
}
if (!*bulletin) {
- BNX2X_ERR("vf ndo called but Bulletin Board struct is null. vfidx was %d\n",
+ BNX2X_ERR("Bulletin Board struct is null for vfidx %d\n",
vfidx);
return -EINVAL;
}
@@ -2565,9 +2673,10 @@ int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
int rc;
/* sanity and init */
- rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
+ rc = bnx2x_vf_op_prep(bp, vfidx, &vf, &bulletin, true);
if (rc)
return rc;
+
mac_obj = &bnx2x_leading_vfq(vf, mac_obj);
vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj);
if (!mac_obj || !vlan_obj) {
@@ -2590,6 +2699,7 @@ int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
VLAN_HLEN);
}
} else {
+ mutex_lock(&bp->vfdb->bulletin_mutex);
/* mac */
if (bulletin->valid_bitmap & (1 << MAC_ADDR_VALID))
/* mac configured by ndo so its in bulletin board */
@@ -2605,6 +2715,8 @@ int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
else
/* function has not been loaded yet. Show vlans as 0s */
memset(&ivi->vlan, 0, VLAN_HLEN);
+
+ mutex_unlock(&bp->vfdb->bulletin_mutex);
}
return 0;
@@ -2634,15 +2746,18 @@ int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac)
struct bnx2x_virtf *vf = NULL;
struct pf_vf_bulletin_content *bulletin = NULL;
- /* sanity and init */
- rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
- if (rc)
- return rc;
if (!is_valid_ether_addr(mac)) {
BNX2X_ERR("mac address invalid\n");
return -EINVAL;
}
+ /* sanity and init */
+ rc = bnx2x_vf_op_prep(bp, vfidx, &vf, &bulletin, true);
+ if (rc)
+ return rc;
+
+ mutex_lock(&bp->vfdb->bulletin_mutex);
+
/* update PF's copy of the VF's bulletin. Will no longer accept mac
* configuration requests from vf unless match this mac
*/
@@ -2651,6 +2766,10 @@ int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac)
/* Post update on VF's bulletin board */
rc = bnx2x_post_vf_bulletin(bp, vfidx);
+
+ /* release lock before checking return code */
+ mutex_unlock(&bp->vfdb->bulletin_mutex);
+
if (rc) {
BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx);
return rc;
@@ -2715,11 +2834,6 @@ int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos)
unsigned long accept_flags;
int rc;
- /* sanity and init */
- rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
- if (rc)
- return rc;
-
if (vlan > 4095) {
BNX2X_ERR("illegal vlan value %d\n", vlan);
return -EINVAL;
@@ -2728,18 +2842,27 @@ int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos)
DP(BNX2X_MSG_IOV, "configuring VF %d with VLAN %d qos %d\n",
vfidx, vlan, 0);
+ /* sanity and init */
+ rc = bnx2x_vf_op_prep(bp, vfidx, &vf, &bulletin, true);
+ if (rc)
+ return rc;
+
/* update PF's copy of the VF's bulletin. No point in posting the vlan
* to the VF since it doesn't have anything to do with it. But it useful
* to store it here in case the VF is not up yet and we can only
* configure the vlan later when it does. Treat vlan id 0 as remove the
* Host tag.
*/
+ mutex_lock(&bp->vfdb->bulletin_mutex);
+
if (vlan > 0)
bulletin->valid_bitmap |= 1 << VLAN_VALID;
else
bulletin->valid_bitmap &= ~(1 << VLAN_VALID);
bulletin->vlan = vlan;
+ mutex_unlock(&bp->vfdb->bulletin_mutex);
+
/* is vf initialized and queue set up? */
if (vf->state != VF_ENABLED ||
bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj)) !=
@@ -2849,10 +2972,9 @@ out:
* entire bulletin board excluding the crc field itself. Use the length field
* as the Bulletin Board was posted by a PF with possibly a different version
* from the vf which will sample it. Therefore, the length is computed by the
- * PF and the used blindly by the VF.
+ * PF and then used blindly by the VF.
*/
-u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
- struct pf_vf_bulletin_content *bulletin)
+u32 bnx2x_crc_vf_bulletin(struct pf_vf_bulletin_content *bulletin)
{
return crc32(BULLETIN_CRC_SEED,
((u8 *)bulletin) + sizeof(bulletin->crc),
@@ -2862,47 +2984,74 @@ u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
/* Check for new posts on the bulletin board */
enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
{
- struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content;
+ struct pf_vf_bulletin_content *bulletin;
int attempts;
- /* bulletin board hasn't changed since last sample */
- if (bp->old_bulletin.version == bulletin.version)
- return PFVF_BULLETIN_UNCHANGED;
+ /* sampling structure in mid post may result with corrupted data
+ * validate crc to ensure coherency.
+ */
+ for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) {
+ u32 crc;
- /* validate crc of new bulletin board */
- if (bp->old_bulletin.version != bp->pf2vf_bulletin->content.version) {
- /* sampling structure in mid post may result with corrupted data
- * validate crc to ensure coherency.
- */
- for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) {
- bulletin = bp->pf2vf_bulletin->content;
- if (bulletin.crc == bnx2x_crc_vf_bulletin(bp,
- &bulletin))
- break;
- BNX2X_ERR("bad crc on bulletin board. Contained %x computed %x\n",
- bulletin.crc,
- bnx2x_crc_vf_bulletin(bp, &bulletin));
- }
- if (attempts >= BULLETIN_ATTEMPTS) {
- BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n",
- attempts);
- return PFVF_BULLETIN_CRC_ERR;
- }
+ /* sample the bulletin board */
+ memcpy(&bp->shadow_bulletin, bp->pf2vf_bulletin,
+ sizeof(union pf_vf_bulletin));
+
+ crc = bnx2x_crc_vf_bulletin(&bp->shadow_bulletin.content);
+
+ if (bp->shadow_bulletin.content.crc == crc)
+ break;
+
+ BNX2X_ERR("bad crc on bulletin board. Contained %x computed %x\n",
+ bp->shadow_bulletin.content.crc, crc);
+ }
+
+ if (attempts >= BULLETIN_ATTEMPTS) {
+ BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n",
+ attempts);
+ return PFVF_BULLETIN_CRC_ERR;
}
+ bulletin = &bp->shadow_bulletin.content;
+
+ /* bulletin board hasn't changed since last sample */
+ if (bp->old_bulletin.version == bulletin->version)
+ return PFVF_BULLETIN_UNCHANGED;
/* the mac address in bulletin board is valid and is new */
- if (bulletin.valid_bitmap & 1 << MAC_ADDR_VALID &&
- !ether_addr_equal(bulletin.mac, bp->old_bulletin.mac)) {
+ if (bulletin->valid_bitmap & 1 << MAC_ADDR_VALID &&
+ !ether_addr_equal(bulletin->mac, bp->old_bulletin.mac)) {
/* update new mac to net device */
- memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN);
+ memcpy(bp->dev->dev_addr, bulletin->mac, ETH_ALEN);
+ }
+
+ if (bulletin->valid_bitmap & (1 << LINK_VALID)) {
+ DP(BNX2X_MSG_IOV, "link update speed %d flags %x\n",
+ bulletin->link_speed, bulletin->link_flags);
+
+ bp->vf_link_vars.line_speed = bulletin->link_speed;
+ bp->vf_link_vars.link_report_flags = 0;
+ /* Link is down */
+ if (bulletin->link_flags & VFPF_LINK_REPORT_LINK_DOWN)
+ __set_bit(BNX2X_LINK_REPORT_LINK_DOWN,
+ &bp->vf_link_vars.link_report_flags);
+ /* Full DUPLEX */
+ if (bulletin->link_flags & VFPF_LINK_REPORT_FULL_DUPLEX)
+ __set_bit(BNX2X_LINK_REPORT_FD,
+ &bp->vf_link_vars.link_report_flags);
+ /* Rx Flow Control is ON */
+ if (bulletin->link_flags & VFPF_LINK_REPORT_RX_FC_ON)
+ __set_bit(BNX2X_LINK_REPORT_RX_FC_ON,
+ &bp->vf_link_vars.link_report_flags);
+ /* Tx Flow Control is ON */
+ if (bulletin->link_flags & VFPF_LINK_REPORT_TX_FC_ON)
+ __set_bit(BNX2X_LINK_REPORT_TX_FC_ON,
+ &bp->vf_link_vars.link_report_flags);
+ __bnx2x_link_report(bp);
}
- /* the vlan in bulletin board is valid and is new */
- if (bulletin.valid_bitmap & 1 << VLAN_VALID)
- memcpy(&bulletin.vlan, &bp->old_bulletin.vlan, VLAN_HLEN);
-
/* copy new bulletin board to bp */
- bp->old_bulletin = bulletin;
+ memcpy(&bp->old_bulletin, bulletin,
+ sizeof(struct pf_vf_bulletin_content));
return PFVF_BULLETIN_UPDATED;
}
@@ -2947,6 +3096,8 @@ int bnx2x_vf_pci_alloc(struct bnx2x *bp)
if (!bp->pf2vf_bulletin)
goto alloc_mem_err;
+ bnx2x_vf_bulletin_finalize(&bp->pf2vf_bulletin->content, true);
+
return 0;
alloc_mem_err:
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index 96c575e..ca1055f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -126,7 +126,11 @@ struct bnx2x_virtf {
#define VF_CACHE_LINE 0x0010
#define VF_CFG_VLAN 0x0020
#define VF_CFG_STATS_COALESCE 0x0040
-
+#define VF_CFG_EXT_BULLETIN 0x0080
+ u8 link_cfg; /* IFLA_VF_LINK_STATE_AUTO
+ * IFLA_VF_LINK_STATE_ENABLE
+ * IFLA_VF_LINK_STATE_DISABLE
+ */
u8 state;
#define VF_FREE 0 /* VF ready to be acquired holds no resc */
#define VF_ACQUIRED 1 /* VF acquired, but not initialized */
@@ -295,22 +299,22 @@ struct bnx2x_vfdb {
#define BP_VFDB(bp) ((bp)->vfdb)
/* vf array */
struct bnx2x_virtf *vfs;
-#define BP_VF(bp, idx) (&((bp)->vfdb->vfs[(idx)]))
-#define bnx2x_vf(bp, idx, var) ((bp)->vfdb->vfs[(idx)].var)
+#define BP_VF(bp, idx) (&((bp)->vfdb->vfs[idx]))
+#define bnx2x_vf(bp, idx, var) ((bp)->vfdb->vfs[idx].var)
/* queue array - for all vfs */
struct bnx2x_vf_queue *vfqs;
/* vf HW contexts */
struct hw_dma context[BNX2X_VF_CIDS/ILT_PAGE_CIDS];
-#define BP_VF_CXT_PAGE(bp, i) (&(bp)->vfdb->context[(i)])
+#define BP_VF_CXT_PAGE(bp, i) (&(bp)->vfdb->context[i])
/* SR-IOV information */
struct bnx2x_sriov sriov;
struct hw_dma mbx_dma;
#define BP_VF_MBX_DMA(bp) (&((bp)->vfdb->mbx_dma))
struct bnx2x_vf_mbx mbxs[BNX2X_MAX_NUM_OF_VFS];
-#define BP_VF_MBX(bp, vfid) (&((bp)->vfdb->mbxs[(vfid)]))
+#define BP_VF_MBX(bp, vfid) (&((bp)->vfdb->mbxs[vfid]))
struct hw_dma bulletin_dma;
#define BP_VF_BULLETIN_DMA(bp) (&((bp)->vfdb->bulletin_dma))
@@ -336,6 +340,9 @@ struct bnx2x_vfdb {
/* sp_rtnl synchronization */
struct mutex event_mutex;
u64 event_occur;
+
+ /* bulletin board update synchronization */
+ struct mutex bulletin_mutex;
};
/* queue access */
@@ -467,9 +474,10 @@ void bnx2x_vf_handle_flr_event(struct bnx2x *bp);
bool bnx2x_tlv_supported(u16 tlvtype);
-u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
- struct pf_vf_bulletin_content *bulletin);
+u32 bnx2x_crc_vf_bulletin(struct pf_vf_bulletin_content *bulletin);
int bnx2x_post_vf_bulletin(struct bnx2x *bp, int vf);
+void bnx2x_vf_bulletin_finalize(struct pf_vf_bulletin_content *bulletin,
+ bool support_long);
enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp);
@@ -520,6 +528,11 @@ void bnx2x_iov_task(struct work_struct *work);
void bnx2x_schedule_iov_task(struct bnx2x *bp, enum bnx2x_iov_flag flag);
+void bnx2x_iov_link_update(struct bnx2x *bp);
+int bnx2x_iov_link_update_vf(struct bnx2x *bp, int idx);
+
+int bnx2x_set_vf_link_state(struct net_device *dev, int vf, int link_state);
+
#else /* CONFIG_BNX2X_SRIOV */
static inline void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
@@ -579,6 +592,14 @@ static inline void bnx2x_iov_channel_down(struct bnx2x *bp) {}
static inline void bnx2x_iov_task(struct work_struct *work) {}
static inline void bnx2x_schedule_iov_task(struct bnx2x *bp, enum bnx2x_iov_flag flag) {}
+static inline void bnx2x_iov_link_update(struct bnx2x *bp) {}
+static inline int bnx2x_iov_link_update_vf(struct bnx2x *bp, int idx) {return 0; }
+
+static inline int bnx2x_set_vf_link_state(struct net_device *dev, int vf,
+ int link_state) {return 0; }
+struct pf_vf_bulletin_content;
+static inline void bnx2x_vf_bulletin_finalize(struct pf_vf_bulletin_content *bulletin,
+ bool support_long) {}
#endif /* CONFIG_BNX2X_SRIOV */
#endif /* bnx2x_sriov.h */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index d712d0d..f350773 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -251,6 +251,9 @@ int bnx2x_vfpf_acquire(struct bnx2x *bp, u8 tx_count, u8 rx_count)
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length,
CHANNEL_TLV_PHYS_PORT_ID, sizeof(struct channel_tlv));
+ /* Bulletin support for bulletin board with length > legacy length */
+ req->vfdev_info.caps |= VF_CAP_SUPPORT_EXT_BULLETIN;
+
/* add list termination tlv */
bnx2x_add_tlv(bp, req,
req->first_tlv.tl.length + sizeof(struct channel_tlv),
@@ -1252,6 +1255,13 @@ static void bnx2x_vf_mbx_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
/* store address of vf's bulletin board */
vf->bulletin_map = acquire->bulletin_addr;
+ if (acquire->vfdev_info.caps & VF_CAP_SUPPORT_EXT_BULLETIN) {
+ DP(BNX2X_MSG_IOV, "VF[%d] supports long bulletin boards\n",
+ vf->abs_vfid);
+ vf->cfg_flags |= VF_CFG_EXT_BULLETIN;
+ } else {
+ vf->cfg_flags &= ~VF_CFG_EXT_BULLETIN;
+ }
/* response */
bnx2x_vf_mbx_acquire_resp(bp, vf, mbx, rc);
@@ -1273,6 +1283,10 @@ static void bnx2x_vf_mbx_init_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
if (init->flags & VFPF_INIT_FLG_STATS_COALESCE)
vf->cfg_flags |= VF_CFG_STATS_COALESCE;
+ /* Update VF's view of link state */
+ if (vf->cfg_flags & VF_CFG_EXT_BULLETIN)
+ bnx2x_iov_link_update_vf(bp, vf->index);
+
/* response */
bnx2x_vf_mbx_resp(bp, vf, rc);
}
@@ -2007,6 +2021,17 @@ void bnx2x_vf_mbx(struct bnx2x *bp)
}
}
+void bnx2x_vf_bulletin_finalize(struct pf_vf_bulletin_content *bulletin,
+ bool support_long)
+{
+ /* Older VFs contain a bug where they can't check CRC for bulletin
+ * boards of length greater than legacy size.
+ */
+ bulletin->length = support_long ? BULLETIN_CONTENT_SIZE :
+ BULLETIN_CONTENT_LEGACY_SIZE;
+ bulletin->crc = bnx2x_crc_vf_bulletin(bulletin);
+}
+
/* propagate local bulletin board to vf */
int bnx2x_post_vf_bulletin(struct bnx2x *bp, int vf)
{
@@ -2023,8 +2048,9 @@ int bnx2x_post_vf_bulletin(struct bnx2x *bp, int vf)
/* increment bulletin board version and compute crc */
bulletin->version++;
- bulletin->length = BULLETIN_CONTENT_SIZE;
- bulletin->crc = bnx2x_crc_vf_bulletin(bp, bulletin);
+ bnx2x_vf_bulletin_finalize(bulletin,
+ (bnx2x_vf(bp, vf, cfg_flags) &
+ VF_CFG_EXT_BULLETIN) ? true : false);
/* propagate bulletin board via dmae to vm memory */
rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h
index e21e706..ace4d7b 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h
@@ -65,6 +65,7 @@ struct hw_sb_info {
#define VFPF_RX_MASK_ACCEPT_ALL_MULTICAST 0x00000008
#define VFPF_RX_MASK_ACCEPT_BROADCAST 0x00000010
#define BULLETIN_CONTENT_SIZE (sizeof(struct pf_vf_bulletin_content))
+#define BULLETIN_CONTENT_LEGACY_SIZE (32)
#define BULLETIN_ATTEMPTS 5 /* crc failures before throwing towel */
#define BULLETIN_CRC_SEED 0
@@ -117,7 +118,9 @@ struct vfpf_acquire_tlv {
/* the following fields are for debug purposes */
u8 vf_id; /* ME register value */
u8 vf_os; /* e.g. Linux, W2K8 */
- u8 padding[2];
+ u8 padding;
+ u8 caps;
+#define VF_CAP_SUPPORT_EXT_BULLETIN (1 << 0)
} vfdev_info;
struct vf_pf_resc_request resc_request;
@@ -393,11 +396,23 @@ struct pf_vf_bulletin_content {
* to attempt to send messages on the
* channel after this bit is set
*/
+#define LINK_VALID 3 /* alert the VF thet a new link status
+ * update is available for it
+ */
u8 mac[ETH_ALEN];
u8 mac_padding[2];
u16 vlan;
u8 vlan_padding[6];
+
+ u16 link_speed; /* Effective line speed */
+ u8 link_speed_padding[6];
+ u32 link_flags; /* VFPF_LINK_REPORT_XXX flags */
+#define VFPF_LINK_REPORT_LINK_DOWN (1 << 0)
+#define VFPF_LINK_REPORT_FULL_DUPLEX (1 << 1)
+#define VFPF_LINK_REPORT_RX_FC_ON (1 << 2)
+#define VFPF_LINK_REPORT_TX_FC_ON (1 << 3)
+ u8 link_flags_padding[4];
};
union pf_vf_bulletin {
--
1.8.3.1
--
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