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Copy pathbnx2x_sriov.c
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bnx2x_sriov.c
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/* bnx2x_sriov.c: QLogic Everest network driver.
*
* Copyright 2009-2013 Broadcom Corporation
* Copyright 2014 QLogic Corporation
* All rights reserved
*
* Unless you and QLogic execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2, available
* at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other QLogic software provided under a
* license other than the GPL, without QLogic's express prior written
* consent.
*
* Maintained by: Ariel Elior <ariel.elior@qlogic.com>
* Written by: Shmulik Ravid
* Ariel Elior <ariel.elior@qlogic.com>
*
*/
#include "bnx2x.h"
#include "bnx2x_init.h"
#include "bnx2x_cmn.h"
#include "bnx2x_sp.h"
#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)
{
REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_VF_TO_PF_OFFSET(abs_fid),
pf_id);
REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_VF_TO_PF_OFFSET(abs_fid),
pf_id);
REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_VF_TO_PF_OFFSET(abs_fid),
pf_id);
REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_VF_TO_PF_OFFSET(abs_fid),
pf_id);
}
static void storm_memset_func_en(struct bnx2x *bp, u16 abs_fid,
u8 enable)
{
REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(abs_fid),
enable);
REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(abs_fid),
enable);
REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(abs_fid),
enable);
REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(abs_fid),
enable);
}
int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
{
int idx;
for_each_vf(bp, idx)
if (bnx2x_vf(bp, idx, abs_vfid) == abs_vfid)
break;
return idx;
}
static
struct bnx2x_virtf *bnx2x_vf_by_abs_fid(struct bnx2x *bp, u16 abs_vfid)
{
u16 idx = (u16)bnx2x_vf_idx_by_abs_fid(bp, abs_vfid);
return (idx < BNX2X_NR_VIRTFN(bp)) ? BP_VF(bp, idx) : NULL;
}
static void bnx2x_vf_igu_ack_sb(struct bnx2x *bp, struct bnx2x_virtf *vf,
u8 igu_sb_id, u8 segment, u16 index, u8 op,
u8 update)
{
/* acking a VF sb through the PF - use the GRC */
u32 ctl;
u32 igu_addr_data = IGU_REG_COMMAND_REG_32LSB_DATA;
u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL;
u32 func_encode = vf->abs_vfid;
u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + igu_sb_id;
struct igu_regular cmd_data = {0};
cmd_data.sb_id_and_flags =
((index << IGU_REGULAR_SB_INDEX_SHIFT) |
(segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
(update << IGU_REGULAR_BUPDATE_SHIFT) |
(op << IGU_REGULAR_ENABLE_INT_SHIFT));
ctl = addr_encode << IGU_CTRL_REG_ADDRESS_SHIFT |
func_encode << IGU_CTRL_REG_FID_SHIFT |
IGU_CTRL_CMD_TYPE_WR << IGU_CTRL_REG_TYPE_SHIFT;
DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
cmd_data.sb_id_and_flags, igu_addr_data);
REG_WR(bp, igu_addr_data, cmd_data.sb_id_and_flags);
mmiowb();
barrier();
DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
ctl, igu_addr_ctl);
REG_WR(bp, igu_addr_ctl, ctl);
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 operations states */
void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_queue_init_params *init_params,
struct bnx2x_queue_setup_params *setup_params,
u16 q_idx, u16 sb_idx)
{
DP(BNX2X_MSG_IOV,
"VF[%d] Q_SETUP: txq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, flags=0x%lx, traffic-type=%d",
vf->abs_vfid,
q_idx,
sb_idx,
init_params->tx.sb_cq_index,
init_params->tx.hc_rate,
setup_params->flags,
setup_params->txq_params.traffic_type);
}
void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_queue_init_params *init_params,
struct bnx2x_queue_setup_params *setup_params,
u16 q_idx, u16 sb_idx)
{
struct bnx2x_rxq_setup_params *rxq_params = &setup_params->rxq_params;
DP(BNX2X_MSG_IOV, "VF[%d] Q_SETUP: rxq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, mtu=%d, buf-size=%d\n"
"sge-size=%d, max_sge_pkt=%d, tpa-agg-size=%d, flags=0x%lx, drop-flags=0x%x, cache-log=%d\n",
vf->abs_vfid,
q_idx,
sb_idx,
init_params->rx.sb_cq_index,
init_params->rx.hc_rate,
setup_params->gen_params.mtu,
rxq_params->buf_sz,
rxq_params->sge_buf_sz,
rxq_params->max_sges_pkt,
rxq_params->tpa_agg_sz,
setup_params->flags,
rxq_params->drop_flags,
rxq_params->cache_line_log);
}
void bnx2x_vfop_qctor_prep(struct bnx2x *bp,
struct bnx2x_virtf *vf,
struct bnx2x_vf_queue *q,
struct bnx2x_vf_queue_construct_params *p,
unsigned long q_type)
{
struct bnx2x_queue_init_params *init_p = &p->qstate.params.init;
struct bnx2x_queue_setup_params *setup_p = &p->prep_qsetup;
/* INIT */
/* Enable host coalescing in the transition to INIT state */
if (test_bit(BNX2X_Q_FLG_HC, &init_p->rx.flags))
__set_bit(BNX2X_Q_FLG_HC_EN, &init_p->rx.flags);
if (test_bit(BNX2X_Q_FLG_HC, &init_p->tx.flags))
__set_bit(BNX2X_Q_FLG_HC_EN, &init_p->tx.flags);
/* FW SB ID */
init_p->rx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
init_p->tx.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
/* context */
init_p->cxts[0] = q->cxt;
/* SETUP */
/* Setup-op general parameters */
setup_p->gen_params.spcl_id = vf->sp_cl_id;
setup_p->gen_params.stat_id = vfq_stat_id(vf, q);
setup_p->gen_params.fp_hsi = vf->fp_hsi;
/* Setup-op flags:
* collect statistics, zero statistics, local-switching, security,
* OV for Flex10, RSS and MCAST for leading
*/
if (test_bit(BNX2X_Q_FLG_STATS, &setup_p->flags))
__set_bit(BNX2X_Q_FLG_ZERO_STATS, &setup_p->flags);
/* for VFs, enable tx switching, bd coherency, and mac address
* anti-spoofing
*/
__set_bit(BNX2X_Q_FLG_TX_SWITCH, &setup_p->flags);
__set_bit(BNX2X_Q_FLG_TX_SEC, &setup_p->flags);
__set_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags);
/* Setup-op rx parameters */
if (test_bit(BNX2X_Q_TYPE_HAS_RX, &q_type)) {
struct bnx2x_rxq_setup_params *rxq_p = &setup_p->rxq_params;
rxq_p->cl_qzone_id = vfq_qzone_id(vf, q);
rxq_p->fw_sb_id = vf_igu_sb(vf, q->sb_idx);
rxq_p->rss_engine_id = FW_VF_HANDLE(vf->abs_vfid);
if (test_bit(BNX2X_Q_FLG_TPA, &setup_p->flags))
rxq_p->max_tpa_queues = BNX2X_VF_MAX_TPA_AGG_QUEUES;
}
/* Setup-op tx parameters */
if (test_bit(BNX2X_Q_TYPE_HAS_TX, &q_type)) {
setup_p->txq_params.tss_leading_cl_id = vf->leading_rss;
setup_p->txq_params.fw_sb_id = vf_igu_sb(vf, q->sb_idx);
}
}
static int bnx2x_vf_queue_create(struct bnx2x *bp,
struct bnx2x_virtf *vf, int qid,
struct bnx2x_vf_queue_construct_params *qctor)
{
struct bnx2x_queue_state_params *q_params;
int rc = 0;
DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid);
/* Prepare ramrod information */
q_params = &qctor->qstate;
q_params->q_obj = &bnx2x_vfq(vf, qid, sp_obj);
set_bit(RAMROD_COMP_WAIT, &q_params->ramrod_flags);
if (bnx2x_get_q_logical_state(bp, q_params->q_obj) ==
BNX2X_Q_LOGICAL_STATE_ACTIVE) {
DP(BNX2X_MSG_IOV, "queue was already up. Aborting gracefully\n");
goto out;
}
/* Run Queue 'construction' ramrods */
q_params->cmd = BNX2X_Q_CMD_INIT;
rc = bnx2x_queue_state_change(bp, q_params);
if (rc)
goto out;
memcpy(&q_params->params.setup, &qctor->prep_qsetup,
sizeof(struct bnx2x_queue_setup_params));
q_params->cmd = BNX2X_Q_CMD_SETUP;
rc = bnx2x_queue_state_change(bp, q_params);
if (rc)
goto out;
/* enable interrupts */
bnx2x_vf_igu_ack_sb(bp, vf, vf_igu_sb(vf, bnx2x_vfq(vf, qid, sb_idx)),
USTORM_ID, 0, IGU_INT_ENABLE, 0);
out:
return rc;
}
static int bnx2x_vf_queue_destroy(struct bnx2x *bp, struct bnx2x_virtf *vf,
int qid)
{
enum bnx2x_queue_cmd cmds[] = {BNX2X_Q_CMD_HALT,
BNX2X_Q_CMD_TERMINATE,
BNX2X_Q_CMD_CFC_DEL};
struct bnx2x_queue_state_params q_params;
int rc, i;
DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
/* Prepare ramrod information */
memset(&q_params, 0, sizeof(struct bnx2x_queue_state_params));
q_params.q_obj = &bnx2x_vfq(vf, qid, sp_obj);
set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
if (bnx2x_get_q_logical_state(bp, q_params.q_obj) ==
BNX2X_Q_LOGICAL_STATE_STOPPED) {
DP(BNX2X_MSG_IOV, "queue was already stopped. Aborting gracefully\n");
goto out;
}
/* Run Queue 'destruction' ramrods */
for (i = 0; i < ARRAY_SIZE(cmds); i++) {
q_params.cmd = cmds[i];
rc = bnx2x_queue_state_change(bp, &q_params);
if (rc) {
BNX2X_ERR("Failed to run Queue command %d\n", cmds[i]);
return rc;
}
}
out:
/* Clean Context */
if (bnx2x_vfq(vf, qid, cxt)) {
bnx2x_vfq(vf, qid, cxt)->ustorm_ag_context.cdu_usage = 0;
bnx2x_vfq(vf, qid, cxt)->xstorm_ag_context.cdu_reserved = 0;
}
return 0;
}
static void
bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid)
{
struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
if (vf) {
/* the first igu entry belonging to VFs of this PF */
if (!BP_VFDB(bp)->first_vf_igu_entry)
BP_VFDB(bp)->first_vf_igu_entry = igu_sb_id;
/* the first igu entry belonging to this VF */
if (!vf_sb_count(vf))
vf->igu_base_id = igu_sb_id;
++vf_sb_count(vf);
++vf->sb_count;
}
BP_VFDB(bp)->vf_sbs_pool++;
}
static inline void bnx2x_vf_vlan_credit(struct bnx2x *bp,
struct bnx2x_vlan_mac_obj *obj,
atomic_t *counter)
{
struct list_head *pos;
int read_lock;
int cnt = 0;
read_lock = bnx2x_vlan_mac_h_read_lock(bp, obj);
if (read_lock)
DP(BNX2X_MSG_SP, "Failed to take vlan mac read head; continuing anyway\n");
list_for_each(pos, &obj->head)
cnt++;
if (!read_lock)
bnx2x_vlan_mac_h_read_unlock(bp, obj);
atomic_set(counter, cnt);
}
static int bnx2x_vf_vlan_mac_clear(struct bnx2x *bp, struct bnx2x_virtf *vf,
int qid, bool drv_only, int type)
{
struct bnx2x_vlan_mac_ramrod_params ramrod;
int rc;
DP(BNX2X_MSG_IOV, "vf[%d] - deleting all %s\n", vf->abs_vfid,
(type == BNX2X_VF_FILTER_VLAN_MAC) ? "VLAN-MACs" :
(type == BNX2X_VF_FILTER_MAC) ? "MACs" : "VLANs");
/* Prepare ramrod params */
memset(&ramrod, 0, sizeof(struct bnx2x_vlan_mac_ramrod_params));
if (type == BNX2X_VF_FILTER_VLAN_MAC) {
set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags);
ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_mac_obj);
} else if (type == BNX2X_VF_FILTER_MAC) {
set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags);
ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
} else {
ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
}
ramrod.user_req.cmd = BNX2X_VLAN_MAC_DEL;
set_bit(RAMROD_EXEC, &ramrod.ramrod_flags);
if (drv_only)
set_bit(RAMROD_DRV_CLR_ONLY, &ramrod.ramrod_flags);
else
set_bit(RAMROD_COMP_WAIT, &ramrod.ramrod_flags);
/* Start deleting */
rc = ramrod.vlan_mac_obj->delete_all(bp,
ramrod.vlan_mac_obj,
&ramrod.user_req.vlan_mac_flags,
&ramrod.ramrod_flags);
if (rc) {
BNX2X_ERR("Failed to delete all %s\n",
(type == BNX2X_VF_FILTER_VLAN_MAC) ? "VLAN-MACs" :
(type == BNX2X_VF_FILTER_MAC) ? "MACs" : "VLANs");
return rc;
}
return 0;
}
static int bnx2x_vf_mac_vlan_config(struct bnx2x *bp,
struct bnx2x_virtf *vf, int qid,
struct bnx2x_vf_mac_vlan_filter *filter,
bool drv_only)
{
struct bnx2x_vlan_mac_ramrod_params ramrod;
int rc;
DP(BNX2X_MSG_IOV, "vf[%d] - %s a %s filter\n",
vf->abs_vfid, filter->add ? "Adding" : "Deleting",
(filter->type == BNX2X_VF_FILTER_VLAN_MAC) ? "VLAN-MAC" :
(filter->type == BNX2X_VF_FILTER_MAC) ? "MAC" : "VLAN");
/* Prepare ramrod params */
memset(&ramrod, 0, sizeof(struct bnx2x_vlan_mac_ramrod_params));
if (filter->type == BNX2X_VF_FILTER_VLAN_MAC) {
ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_mac_obj);
ramrod.user_req.u.vlan.vlan = filter->vid;
memcpy(&ramrod.user_req.u.mac.mac, filter->mac, ETH_ALEN);
set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags);
} else if (filter->type == BNX2X_VF_FILTER_VLAN) {
ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj);
ramrod.user_req.u.vlan.vlan = filter->vid;
} else {
set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags);
ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj);
memcpy(&ramrod.user_req.u.mac.mac, filter->mac, ETH_ALEN);
}
ramrod.user_req.cmd = filter->add ? BNX2X_VLAN_MAC_ADD :
BNX2X_VLAN_MAC_DEL;
set_bit(RAMROD_EXEC, &ramrod.ramrod_flags);
if (drv_only)
set_bit(RAMROD_DRV_CLR_ONLY, &ramrod.ramrod_flags);
else
set_bit(RAMROD_COMP_WAIT, &ramrod.ramrod_flags);
/* Add/Remove the filter */
rc = bnx2x_config_vlan_mac(bp, &ramrod);
if (rc == -EEXIST)
return 0;
if (rc) {
BNX2X_ERR("Failed to %s %s\n",
filter->add ? "add" : "delete",
(filter->type == BNX2X_VF_FILTER_VLAN_MAC) ?
"VLAN-MAC" :
(filter->type == BNX2X_VF_FILTER_MAC) ?
"MAC" : "VLAN");
return rc;
}
filter->applied = true;
return 0;
}
int bnx2x_vf_mac_vlan_config_list(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mac_vlan_filters *filters,
int qid, bool drv_only)
{
int rc = 0, i;
DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
if (!bnx2x_validate_vf_sp_objs(bp, vf, true))
return -EINVAL;
/* Prepare ramrod params */
for (i = 0; i < filters->count; i++) {
rc = bnx2x_vf_mac_vlan_config(bp, vf, qid,
&filters->filters[i], drv_only);
if (rc)
break;
}
/* Rollback if needed */
if (i != filters->count) {
BNX2X_ERR("Managed only %d/%d filters - rolling back\n",
i, filters->count);
while (--i >= 0) {
if (!filters->filters[i].applied)
continue;
filters->filters[i].add = !filters->filters[i].add;
bnx2x_vf_mac_vlan_config(bp, vf, qid,
&filters->filters[i],
drv_only);
}
}
/* It's our responsibility to free the filters */
kfree(filters);
return rc;
}
int bnx2x_vf_queue_setup(struct bnx2x *bp, struct bnx2x_virtf *vf, int qid,
struct bnx2x_vf_queue_construct_params *qctor)
{
int rc;
DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid);
rc = bnx2x_vf_queue_create(bp, vf, qid, qctor);
if (rc)
goto op_err;
/* Schedule the configuration of any pending vlan filters */
bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_HYPERVISOR_VLAN,
BNX2X_MSG_IOV);
return 0;
op_err:
BNX2X_ERR("QSETUP[%d:%d] error: rc %d\n", vf->abs_vfid, qid, rc);
return rc;
}
static int bnx2x_vf_queue_flr(struct bnx2x *bp, struct bnx2x_virtf *vf,
int qid)
{
int rc;
DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid);
/* If needed, clean the filtering data base */
if ((qid == LEADING_IDX) &&
bnx2x_validate_vf_sp_objs(bp, vf, false)) {
rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, true,
BNX2X_VF_FILTER_VLAN_MAC);
if (rc)
goto op_err;
rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, true,
BNX2X_VF_FILTER_VLAN);
if (rc)
goto op_err;
rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, true,
BNX2X_VF_FILTER_MAC);
if (rc)
goto op_err;
}
/* Terminate queue */
if (bnx2x_vfq(vf, qid, sp_obj).state != BNX2X_Q_STATE_RESET) {
struct bnx2x_queue_state_params qstate;
memset(&qstate, 0, sizeof(struct bnx2x_queue_state_params));
qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj);
qstate.q_obj->state = BNX2X_Q_STATE_STOPPED;
qstate.cmd = BNX2X_Q_CMD_TERMINATE;
set_bit(RAMROD_COMP_WAIT, &qstate.ramrod_flags);
rc = bnx2x_queue_state_change(bp, &qstate);
if (rc)
goto op_err;
}
return 0;
op_err:
BNX2X_ERR("vf[%d:%d] error: rc %d\n", vf->abs_vfid, qid, rc);
return rc;
}
int bnx2x_vf_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf,
bnx2x_mac_addr_t *mcasts, int mc_num, bool drv_only)
{
struct bnx2x_mcast_list_elem *mc = NULL;
struct bnx2x_mcast_ramrod_params mcast;
int rc, i;
DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
/* Prepare Multicast command */
memset(&mcast, 0, sizeof(struct bnx2x_mcast_ramrod_params));
mcast.mcast_obj = &vf->mcast_obj;
if (drv_only)
set_bit(RAMROD_DRV_CLR_ONLY, &mcast.ramrod_flags);
else
set_bit(RAMROD_COMP_WAIT, &mcast.ramrod_flags);
if (mc_num) {
mc = kcalloc(mc_num, sizeof(struct bnx2x_mcast_list_elem),
GFP_KERNEL);
if (!mc) {
BNX2X_ERR("Cannot Configure multicasts due to lack of memory\n");
return -ENOMEM;
}
}
if (mc_num) {
INIT_LIST_HEAD(&mcast.mcast_list);
for (i = 0; i < mc_num; i++) {
mc[i].mac = mcasts[i];
list_add_tail(&mc[i].link,
&mcast.mcast_list);
}
/* add new mcasts */
mcast.mcast_list_len = mc_num;
rc = bnx2x_config_mcast(bp, &mcast, BNX2X_MCAST_CMD_SET);
if (rc)
BNX2X_ERR("Failed to set multicasts\n");
} else {
/* clear existing mcasts */
rc = bnx2x_config_mcast(bp, &mcast, BNX2X_MCAST_CMD_DEL);
if (rc)
BNX2X_ERR("Failed to remove multicasts\n");
}
kfree(mc);
return rc;
}
static void bnx2x_vf_prep_rx_mode(struct bnx2x *bp, u8 qid,
struct bnx2x_rx_mode_ramrod_params *ramrod,
struct bnx2x_virtf *vf,
unsigned long accept_flags)
{
struct bnx2x_vf_queue *vfq = vfq_get(vf, qid);
memset(ramrod, 0, sizeof(*ramrod));
ramrod->cid = vfq->cid;
ramrod->cl_id = vfq_cl_id(vf, vfq);
ramrod->rx_mode_obj = &bp->rx_mode_obj;
ramrod->func_id = FW_VF_HANDLE(vf->abs_vfid);
ramrod->rx_accept_flags = accept_flags;
ramrod->tx_accept_flags = accept_flags;
ramrod->pstate = &vf->filter_state;
ramrod->state = BNX2X_FILTER_RX_MODE_PENDING;
set_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
set_bit(RAMROD_RX, &ramrod->ramrod_flags);
set_bit(RAMROD_TX, &ramrod->ramrod_flags);
ramrod->rdata = bnx2x_vf_sp(bp, vf, rx_mode_rdata.e2);
ramrod->rdata_mapping = bnx2x_vf_sp_map(bp, vf, rx_mode_rdata.e2);
}
int bnx2x_vf_rxmode(struct bnx2x *bp, struct bnx2x_virtf *vf,
int qid, unsigned long accept_flags)
{
struct bnx2x_rx_mode_ramrod_params ramrod;
DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
bnx2x_vf_prep_rx_mode(bp, qid, &ramrod, vf, accept_flags);
set_bit(RAMROD_COMP_WAIT, &ramrod.ramrod_flags);
vfq_get(vf, qid)->accept_flags = ramrod.rx_accept_flags;
return bnx2x_config_rx_mode(bp, &ramrod);
}
int bnx2x_vf_queue_teardown(struct bnx2x *bp, struct bnx2x_virtf *vf, int qid)
{
int rc;
DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid);
/* Remove all classification configuration for leading queue */
if (qid == LEADING_IDX) {
rc = bnx2x_vf_rxmode(bp, vf, qid, 0);
if (rc)
goto op_err;
/* Remove filtering if feasible */
if (bnx2x_validate_vf_sp_objs(bp, vf, true)) {
rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid,
false,
BNX2X_VF_FILTER_VLAN_MAC);
if (rc)
goto op_err;
rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid,
false,
BNX2X_VF_FILTER_VLAN);
if (rc)
goto op_err;
rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid,
false,
BNX2X_VF_FILTER_MAC);
if (rc)
goto op_err;
rc = bnx2x_vf_mcast(bp, vf, NULL, 0, false);
if (rc)
goto op_err;
}
}
/* Destroy queue */
rc = bnx2x_vf_queue_destroy(bp, vf, qid);
if (rc)
goto op_err;
return rc;
op_err:
BNX2X_ERR("vf[%d:%d] error: rc %d\n",
vf->abs_vfid, qid, rc);
return rc;
}
/* VF enable primitives
* when pretend is required the caller is responsible
* for calling pretend prior to calling these routines
*/
/* internal vf enable - until vf is enabled internally all transactions
* are blocked. This routine should always be called last with pretend.
*/
static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable)
{
REG_WR(bp, PGLUE_B_REG_INTERNAL_VFID_ENABLE, enable ? 1 : 0);
}
/* clears vf error in all semi blocks */
static void bnx2x_vf_semi_clear_err(struct bnx2x *bp, u8 abs_vfid)
{
REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, abs_vfid);
REG_WR(bp, USEM_REG_VFPF_ERR_NUM, abs_vfid);
REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, abs_vfid);
REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, abs_vfid);
}
static void bnx2x_vf_pglue_clear_err(struct bnx2x *bp, u8 abs_vfid)
{
u32 was_err_group = (2 * BP_PATH(bp) + abs_vfid) >> 5;
u32 was_err_reg = 0;
switch (was_err_group) {
case 0:
was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR;
break;
case 1:
was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_63_32_CLR;
break;
case 2:
was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_95_64_CLR;
break;
case 3:
was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_127_96_CLR;
break;
}
REG_WR(bp, was_err_reg, 1 << (abs_vfid & 0x1f));
}
static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf)
{
int i;
u32 val;
/* Set VF masks and configuration - pretend */
bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
REG_WR(bp, IGU_REG_SB_MASK_LSB, 0);
REG_WR(bp, IGU_REG_SB_MASK_MSB, 0);
REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0);
REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0);
val = REG_RD(bp, IGU_REG_VF_CONFIGURATION);
val |= (IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_MSI_MSIX_EN);
val &= ~IGU_VF_CONF_PARENT_MASK;
val |= (BP_ABS_FUNC(bp) >> 1) << IGU_VF_CONF_PARENT_SHIFT;
REG_WR(bp, IGU_REG_VF_CONFIGURATION, val);
DP(BNX2X_MSG_IOV,
"value in IGU_REG_VF_CONFIGURATION of vf %d after write is 0x%08x\n",
vf->abs_vfid, val);
bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
/* iterate over all queues, clear sb consumer */
for (i = 0; i < vf_sb_count(vf); i++) {
u8 igu_sb_id = vf_igu_sb(vf, i);
/* zero prod memory */
REG_WR(bp, IGU_REG_PROD_CONS_MEMORY + igu_sb_id * 4, 0);
/* clear sb state machine */
bnx2x_igu_clear_sb_gen(bp, vf->abs_vfid, igu_sb_id,
false /* VF */);
/* disable + update */
bnx2x_vf_igu_ack_sb(bp, vf, igu_sb_id, USTORM_ID, 0,
IGU_INT_DISABLE, 1);
}
}
void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid)
{
/* set the VF-PF association in the FW */
storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp));
storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1);
/* clear vf errors*/
bnx2x_vf_semi_clear_err(bp, abs_vfid);
bnx2x_vf_pglue_clear_err(bp, abs_vfid);
/* internal vf-enable - pretend */
bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, abs_vfid));
DP(BNX2X_MSG_IOV, "enabling internal access for vf %x\n", abs_vfid);
bnx2x_vf_enable_internal(bp, true);
bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
}
static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf)
{
/* Reset vf in IGU interrupts are still disabled */
bnx2x_vf_igu_reset(bp, vf);
/* pretend to enable the vf with the PBF */
bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
REG_WR(bp, PBF_REG_DISABLE_VF, 0);
bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
}
static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
{
struct pci_dev *dev;
struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
if (!vf)
return false;
dev = pci_get_domain_bus_and_slot(vf->domain, vf->bus, vf->devfn);
if (dev)
return bnx2x_is_pcie_pending(dev);
return false;
}
int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid)
{
/* Verify no pending pci transactions */
if (bnx2x_vf_is_pcie_pending(bp, abs_vfid))
BNX2X_ERR("PCIE Transactions still pending\n");
return 0;
}
/* must be called after the number of PF queues and the number of VFs are
* both known
*/
static void
bnx2x_iov_static_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
{
struct vf_pf_resc_request *resc = &vf->alloc_resc;
/* will be set only during VF-ACQUIRE */
resc->num_rxqs = 0;
resc->num_txqs = 0;
resc->num_mac_filters = VF_MAC_CREDIT_CNT;
resc->num_vlan_filters = VF_VLAN_CREDIT_CNT;
/* no real limitation */
resc->num_mc_filters = 0;
/* num_sbs already set */
resc->num_sbs = vf->sb_count;
}
/* FLR routines: */
static void bnx2x_vf_free_resc(struct bnx2x *bp, struct bnx2x_virtf *vf)
{
/* reset the state variables */
bnx2x_iov_static_resc(bp, vf);
vf->state = VF_FREE;
}
static void bnx2x_vf_flr_clnup_hw(struct bnx2x *bp, struct bnx2x_virtf *vf)
{
u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp);
/* DQ usage counter */
bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid));
bnx2x_flr_clnup_poll_hw_counter(bp, DORQ_REG_VF_USAGE_CNT,
"DQ VF usage counter timed out",
poll_cnt);
bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
/* FW cleanup command - poll for the results */
if (bnx2x_send_final_clnup(bp, (u8)FW_VF_HANDLE(vf->abs_vfid),
poll_cnt))
BNX2X_ERR("VF[%d] Final cleanup timed-out\n", vf->abs_vfid);
/* verify TX hw is flushed */
bnx2x_tx_hw_flushed(bp, poll_cnt);
}
static void bnx2x_vf_flr(struct bnx2x *bp, struct bnx2x_virtf *vf)
{
int rc, i;
DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid);
/* the cleanup operations are valid if and only if the VF
* was first acquired.
*/
for (i = 0; i < vf_rxq_count(vf); i++) {
rc = bnx2x_vf_queue_flr(bp, vf, i);
if (rc)
goto out;
}
/* remove multicasts */
bnx2x_vf_mcast(bp, vf, NULL, 0, true);
/* dispatch final cleanup and wait for HW queues to flush */
bnx2x_vf_flr_clnup_hw(bp, vf);
/* release VF resources */
bnx2x_vf_free_resc(bp, vf);
vf->malicious = false;
/* re-open the mailbox */
bnx2x_vf_enable_mbx(bp, vf->abs_vfid);
return;
out:
BNX2X_ERR("vf[%d:%d] failed flr: rc %d\n",
vf->abs_vfid, i, rc);
}
static void bnx2x_vf_flr_clnup(struct bnx2x *bp)
{
struct bnx2x_virtf *vf;
int i;
for (i = 0; i < BNX2X_NR_VIRTFN(bp); i++) {
/* VF should be RESET & in FLR cleanup states */
if (bnx2x_vf(bp, i, state) != VF_RESET ||
!bnx2x_vf(bp, i, flr_clnup_stage))
continue;
DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. Num of vfs: %d\n",
i, BNX2X_NR_VIRTFN(bp));
vf = BP_VF(bp, i);
/* lock the vf pf channel */
bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
/* invoke the VF FLR SM */
bnx2x_vf_flr(bp, vf);
/* mark the VF to be ACKED and continue */
vf->flr_clnup_stage = false;
bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR);
}
/* Acknowledge the handled VFs.
* we are acknowledge all the vfs which an flr was requested for, even
* if amongst them there are such that we never opened, since the mcp
* will interrupt us immediately again if we only ack some of the bits,
* resulting in an endless loop. This can happen for example in KVM
* where an 'all ones' flr request is sometimes given by hyper visor
*/
DP(BNX2X_MSG_MCP, "DRV_STATUS_VF_DISABLED ACK for vfs 0x%x 0x%x\n",
bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
for (i = 0; i < FLRD_VFS_DWORDS; i++)
SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i],
bp->vfdb->flrd_vfs[i]);
bnx2x_fw_command(bp, DRV_MSG_CODE_VF_DISABLED_DONE, 0);
/* clear the acked bits - better yet if the MCP implemented
* write to clear semantics
*/
for (i = 0; i < FLRD_VFS_DWORDS; i++)
SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 0);
}
void bnx2x_vf_handle_flr_event(struct bnx2x *bp)
{
int i;
/* Read FLR'd VFs */
for (i = 0; i < FLRD_VFS_DWORDS; i++)
bp->vfdb->flrd_vfs[i] = SHMEM2_RD(bp, mcp_vf_disabled[i]);
DP(BNX2X_MSG_MCP,
"DRV_STATUS_VF_DISABLED received for vfs 0x%x 0x%x\n",
bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]);
for_each_vf(bp, i) {
struct bnx2x_virtf *vf = BP_VF(bp, i);
u32 reset = 0;
if (vf->abs_vfid < 32)
reset = bp->vfdb->flrd_vfs[0] & (1 << vf->abs_vfid);
else
reset = bp->vfdb->flrd_vfs[1] &
(1 << (vf->abs_vfid - 32));
if (reset) {
/* set as reset and ready for cleanup */
vf->state = VF_RESET;
vf->flr_clnup_stage = true;
DP(BNX2X_MSG_IOV,
"Initiating Final cleanup for VF %d\n",
vf->abs_vfid);
}
}
/* do the FLR cleanup for all marked VFs*/
bnx2x_vf_flr_clnup(bp);
}
/* IOV global initialization routines */