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linux/linux-5.4.31/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c

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/* bnx2x_vfpf.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_cmn.h"
#include <linux/crc32.h>
static int bnx2x_vfpf_teardown_queue(struct bnx2x *bp, int qidx);
/* place a given tlv on the tlv buffer at a given offset */
static void bnx2x_add_tlv(struct bnx2x *bp, void *tlvs_list,
u16 offset, u16 type, u16 length)
{
struct channel_tlv *tl =
(struct channel_tlv *)(tlvs_list + offset);
tl->type = type;
tl->length = length;
}
/* Clear the mailbox and init the header of the first tlv */
static void bnx2x_vfpf_prep(struct bnx2x *bp, struct vfpf_first_tlv *first_tlv,
u16 type, u16 length)
{
mutex_lock(&bp->vf2pf_mutex);
DP(BNX2X_MSG_IOV, "preparing to send %d tlv over vf pf channel\n",
type);
/* Clear mailbox */
memset(bp->vf2pf_mbox, 0, sizeof(struct bnx2x_vf_mbx_msg));
/* init type and length */
bnx2x_add_tlv(bp, &first_tlv->tl, 0, type, length);
/* init first tlv header */
first_tlv->resp_msg_offset = sizeof(bp->vf2pf_mbox->req);
}
/* releases the mailbox */
static void bnx2x_vfpf_finalize(struct bnx2x *bp,
struct vfpf_first_tlv *first_tlv)
{
DP(BNX2X_MSG_IOV, "done sending [%d] tlv over vf pf channel\n",
first_tlv->tl.type);
mutex_unlock(&bp->vf2pf_mutex);
}
/* Finds a TLV by type in a TLV buffer; If found, returns pointer to the TLV */
static void *bnx2x_search_tlv_list(struct bnx2x *bp, void *tlvs_list,
enum channel_tlvs req_tlv)
{
struct channel_tlv *tlv = (struct channel_tlv *)tlvs_list;
do {
if (tlv->type == req_tlv)
return tlv;
if (!tlv->length) {
BNX2X_ERR("Found TLV with length 0\n");
return NULL;
}
tlvs_list += tlv->length;
tlv = (struct channel_tlv *)tlvs_list;
} while (tlv->type != CHANNEL_TLV_LIST_END);
DP(BNX2X_MSG_IOV, "TLV list does not contain %d TLV\n", req_tlv);
return NULL;
}
/* list the types and lengths of the tlvs on the buffer */
static void bnx2x_dp_tlv_list(struct bnx2x *bp, void *tlvs_list)
{
int i = 1;
struct channel_tlv *tlv = (struct channel_tlv *)tlvs_list;
while (tlv->type != CHANNEL_TLV_LIST_END) {
/* output tlv */
DP(BNX2X_MSG_IOV, "TLV number %d: type %d, length %d\n", i,
tlv->type, tlv->length);
/* advance to next tlv */
tlvs_list += tlv->length;
/* cast general tlv list pointer to channel tlv header*/
tlv = (struct channel_tlv *)tlvs_list;
i++;
/* break condition for this loop */
if (i > MAX_TLVS_IN_LIST) {
WARN(true, "corrupt tlvs");
return;
}
}
/* output last tlv */
DP(BNX2X_MSG_IOV, "TLV number %d: type %d, length %d\n", i,
tlv->type, tlv->length);
}
/* test whether we support a tlv type */
bool bnx2x_tlv_supported(u16 tlvtype)
{
return CHANNEL_TLV_NONE < tlvtype && tlvtype < CHANNEL_TLV_MAX;
}
static inline int bnx2x_pfvf_status_codes(int rc)
{
switch (rc) {
case 0:
return PFVF_STATUS_SUCCESS;
case -ENOMEM:
return PFVF_STATUS_NO_RESOURCE;
default:
return PFVF_STATUS_FAILURE;
}
}
static int bnx2x_send_msg2pf(struct bnx2x *bp, u8 *done, dma_addr_t msg_mapping)
{
struct cstorm_vf_zone_data __iomem *zone_data =
REG_ADDR(bp, PXP_VF_ADDR_CSDM_GLOBAL_START);
int tout = 100, interval = 100; /* wait for 10 seconds */
if (*done) {
BNX2X_ERR("done was non zero before message to pf was sent\n");
WARN_ON(true);
return -EINVAL;
}
/* if PF indicated channel is down avoid sending message. Return success
* so calling flow can continue
*/
bnx2x_sample_bulletin(bp);
if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
DP(BNX2X_MSG_IOV, "detecting channel down. Aborting message\n");
*done = PFVF_STATUS_SUCCESS;
return -EINVAL;
}
/* Write message address */
writel(U64_LO(msg_mapping),
&zone_data->non_trigger.vf_pf_channel.msg_addr_lo);
writel(U64_HI(msg_mapping),
&zone_data->non_trigger.vf_pf_channel.msg_addr_hi);
/* make sure the address is written before FW accesses it */
wmb();
/* Trigger the PF FW */
writeb_relaxed(1, &zone_data->trigger.vf_pf_channel.addr_valid);
/* Wait for PF to complete */
while ((tout >= 0) && (!*done)) {
msleep(interval);
tout -= 1;
/* progress indicator - HV can take its own sweet time in
* answering VFs...
*/
DP_CONT(BNX2X_MSG_IOV, ".");
}
if (!*done) {
BNX2X_ERR("PF response has timed out\n");
return -EAGAIN;
}
DP(BNX2X_MSG_SP, "Got a response from PF\n");
return 0;
}
static int bnx2x_get_vf_id(struct bnx2x *bp, u32 *vf_id)
{
u32 me_reg;
int tout = 10, interval = 100; /* Wait for 1 sec */
do {
/* pxp traps vf read of doorbells and returns me reg value */
me_reg = readl(bp->doorbells);
if (GOOD_ME_REG(me_reg))
break;
msleep(interval);
BNX2X_ERR("Invalid ME register value: 0x%08x\n. Is pf driver up?",
me_reg);
} while (tout-- > 0);
if (!GOOD_ME_REG(me_reg)) {
BNX2X_ERR("Invalid ME register value: 0x%08x\n", me_reg);
return -EINVAL;
}
DP(BNX2X_MSG_IOV, "valid ME register value: 0x%08x\n", me_reg);
*vf_id = (me_reg & ME_REG_VF_NUM_MASK) >> ME_REG_VF_NUM_SHIFT;
return 0;
}
int bnx2x_vfpf_acquire(struct bnx2x *bp, u8 tx_count, u8 rx_count)
{
int rc = 0, attempts = 0;
struct vfpf_acquire_tlv *req = &bp->vf2pf_mbox->req.acquire;
struct pfvf_acquire_resp_tlv *resp = &bp->vf2pf_mbox->resp.acquire_resp;
struct vfpf_port_phys_id_resp_tlv *phys_port_resp;
struct vfpf_fp_hsi_resp_tlv *fp_hsi_resp;
u32 vf_id;
bool resources_acquired = false;
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_ACQUIRE, sizeof(*req));
if (bnx2x_get_vf_id(bp, &vf_id)) {
rc = -EAGAIN;
goto out;
}
req->vfdev_info.vf_id = vf_id;
req->vfdev_info.vf_os = 0;
req->vfdev_info.fp_hsi_ver = ETH_FP_HSI_VERSION;
req->resc_request.num_rxqs = rx_count;
req->resc_request.num_txqs = tx_count;
req->resc_request.num_sbs = bp->igu_sb_cnt;
req->resc_request.num_mac_filters = VF_ACQUIRE_MAC_FILTERS;
req->resc_request.num_mc_filters = VF_ACQUIRE_MC_FILTERS;
req->resc_request.num_vlan_filters = VF_ACQUIRE_VLAN_FILTERS;
/* pf 2 vf bulletin board address */
req->bulletin_addr = bp->pf2vf_bulletin_mapping;
/* Request physical port identifier */
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;
/* vlan filtering is supported */
req->vfdev_info.caps |= VF_CAP_SUPPORT_VLAN_FILTER;
/* add list termination tlv */
bnx2x_add_tlv(bp, req,
req->first_tlv.tl.length + sizeof(struct channel_tlv),
CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
while (!resources_acquired) {
DP(BNX2X_MSG_SP, "attempting to acquire resources\n");
/* send acquire request */
rc = bnx2x_send_msg2pf(bp,
&resp->hdr.status,
bp->vf2pf_mbox_mapping);
/* PF timeout */
if (rc)
goto out;
/* copy acquire response from buffer to bp */
memcpy(&bp->acquire_resp, resp, sizeof(bp->acquire_resp));
attempts++;
/* test whether the PF accepted our request. If not, humble
* the request and try again.
*/
if (bp->acquire_resp.hdr.status == PFVF_STATUS_SUCCESS) {
DP(BNX2X_MSG_SP, "resources acquired\n");
resources_acquired = true;
} else if (bp->acquire_resp.hdr.status ==
PFVF_STATUS_NO_RESOURCE &&
attempts < VF_ACQUIRE_THRESH) {
DP(BNX2X_MSG_SP,
"PF unwilling to fulfill resource request. Try PF recommended amount\n");
/* humble our request */
req->resc_request.num_txqs =
min(req->resc_request.num_txqs,
bp->acquire_resp.resc.num_txqs);
req->resc_request.num_rxqs =
min(req->resc_request.num_rxqs,
bp->acquire_resp.resc.num_rxqs);
req->resc_request.num_sbs =
min(req->resc_request.num_sbs,
bp->acquire_resp.resc.num_sbs);
req->resc_request.num_mac_filters =
min(req->resc_request.num_mac_filters,
bp->acquire_resp.resc.num_mac_filters);
req->resc_request.num_vlan_filters =
min(req->resc_request.num_vlan_filters,
bp->acquire_resp.resc.num_vlan_filters);
req->resc_request.num_mc_filters =
min(req->resc_request.num_mc_filters,
bp->acquire_resp.resc.num_mc_filters);
/* Clear response buffer */
memset(&bp->vf2pf_mbox->resp, 0,
sizeof(union pfvf_tlvs));
} else {
/* Determine reason of PF failure of acquire process */
fp_hsi_resp = bnx2x_search_tlv_list(bp, resp,
CHANNEL_TLV_FP_HSI_SUPPORT);
if (fp_hsi_resp && !fp_hsi_resp->is_supported)
BNX2X_ERR("Old hypervisor - doesn't support current fastpath HSI version; Need to downgrade VF driver [or upgrade hypervisor]\n");
else
BNX2X_ERR("Failed to get the requested amount of resources: %d. Breaking...\n",
bp->acquire_resp.hdr.status);
rc = -EAGAIN;
goto out;
}
}
/* Retrieve physical port id (if possible) */
phys_port_resp = (struct vfpf_port_phys_id_resp_tlv *)
bnx2x_search_tlv_list(bp, resp,
CHANNEL_TLV_PHYS_PORT_ID);
if (phys_port_resp) {
memcpy(bp->phys_port_id, phys_port_resp->id, ETH_ALEN);
bp->flags |= HAS_PHYS_PORT_ID;
}
/* Old Hypevisors might not even support the FP_HSI_SUPPORT TLV.
* If that's the case, we need to make certain required FW was
* supported by such a hypervisor [i.e., v0-v2].
*/
fp_hsi_resp = bnx2x_search_tlv_list(bp, resp,
CHANNEL_TLV_FP_HSI_SUPPORT);
if (!fp_hsi_resp && (ETH_FP_HSI_VERSION > ETH_FP_HSI_VER_2)) {
BNX2X_ERR("Old hypervisor - need to downgrade VF's driver\n");
/* Since acquire succeeded on the PF side, we need to send a
* release message in order to allow future probes.
*/
bnx2x_vfpf_finalize(bp, &req->first_tlv);
bnx2x_vfpf_release(bp);
rc = -EINVAL;
goto out;
}
/* get HW info */
bp->common.chip_id |= (bp->acquire_resp.pfdev_info.chip_num & 0xffff);
bp->link_params.chip_id = bp->common.chip_id;
bp->db_size = bp->acquire_resp.pfdev_info.db_size;
bp->common.int_block = INT_BLOCK_IGU;
bp->common.chip_port_mode = CHIP_2_PORT_MODE;
bp->igu_dsb_id = -1;
bp->mf_ov = 0;
bp->mf_mode = 0;
bp->common.flash_size = 0;
bp->flags |=
NO_WOL_FLAG | NO_ISCSI_OOO_FLAG | NO_ISCSI_FLAG | NO_FCOE_FLAG;
bp->igu_sb_cnt = bp->acquire_resp.resc.num_sbs;
bp->igu_base_sb = bp->acquire_resp.resc.hw_sbs[0].hw_sb_id;
bp->vlan_credit = bp->acquire_resp.resc.num_vlan_filters;
strlcpy(bp->fw_ver, bp->acquire_resp.pfdev_info.fw_ver,
sizeof(bp->fw_ver));
if (is_valid_ether_addr(bp->acquire_resp.resc.current_mac_addr))
memcpy(bp->dev->dev_addr,
bp->acquire_resp.resc.current_mac_addr,
ETH_ALEN);
out:
bnx2x_vfpf_finalize(bp, &req->first_tlv);
return rc;
}
int bnx2x_vfpf_release(struct bnx2x *bp)
{
struct vfpf_release_tlv *req = &bp->vf2pf_mbox->req.release;
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
u32 rc, vf_id;
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_RELEASE, sizeof(*req));
if (bnx2x_get_vf_id(bp, &vf_id)) {
rc = -EAGAIN;
goto out;
}
req->vf_id = vf_id;
/* add list termination tlv */
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
/* send release request */
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
if (rc)
/* PF timeout */
goto out;
if (resp->hdr.status == PFVF_STATUS_SUCCESS) {
/* PF released us */
DP(BNX2X_MSG_SP, "vf released\n");
} else {
/* PF reports error */
BNX2X_ERR("PF failed our release request - are we out of sync? Response status: %d\n",
resp->hdr.status);
rc = -EAGAIN;
goto out;
}
out:
bnx2x_vfpf_finalize(bp, &req->first_tlv);
return rc;
}
/* Tell PF about SB addresses */
int bnx2x_vfpf_init(struct bnx2x *bp)
{
struct vfpf_init_tlv *req = &bp->vf2pf_mbox->req.init;
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
int rc, i;
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_INIT, sizeof(*req));
/* status blocks */
for_each_eth_queue(bp, i)
req->sb_addr[i] = (dma_addr_t)bnx2x_fp(bp, i,
status_blk_mapping);
/* statistics - requests only supports single queue for now */
req->stats_addr = bp->fw_stats_data_mapping +
offsetof(struct bnx2x_fw_stats_data, queue_stats);
req->stats_stride = sizeof(struct per_queue_stats);
/* add list termination tlv */
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
if (rc)
goto out;
if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
BNX2X_ERR("INIT VF failed: %d. Breaking...\n",
resp->hdr.status);
rc = -EAGAIN;
goto out;
}
DP(BNX2X_MSG_SP, "INIT VF Succeeded\n");
out:
bnx2x_vfpf_finalize(bp, &req->first_tlv);
return rc;
}
/* CLOSE VF - opposite to INIT_VF */
void bnx2x_vfpf_close_vf(struct bnx2x *bp)
{
struct vfpf_close_tlv *req = &bp->vf2pf_mbox->req.close;
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
int i, rc;
u32 vf_id;
/* If we haven't got a valid VF id, there is no sense to
* continue with sending messages
*/
if (bnx2x_get_vf_id(bp, &vf_id))
goto free_irq;
/* Close the queues */
for_each_queue(bp, i)
bnx2x_vfpf_teardown_queue(bp, i);
/* remove mac */
bnx2x_vfpf_config_mac(bp, bp->dev->dev_addr, bp->fp->index, false);
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_CLOSE, sizeof(*req));
req->vf_id = vf_id;
/* add list termination tlv */
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
if (rc)
BNX2X_ERR("Sending CLOSE failed. rc was: %d\n", rc);
else if (resp->hdr.status != PFVF_STATUS_SUCCESS)
BNX2X_ERR("Sending CLOSE failed: pf response was %d\n",
resp->hdr.status);
bnx2x_vfpf_finalize(bp, &req->first_tlv);
free_irq:
/* Disable HW interrupts, NAPI */
bnx2x_netif_stop(bp, 0);
/* Delete all NAPI objects */
bnx2x_del_all_napi(bp);
/* Release IRQs */
bnx2x_free_irq(bp);
}
static void bnx2x_leading_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_queue *q)
{
u8 cl_id = vfq_cl_id(vf, q);
u8 func_id = FW_VF_HANDLE(vf->abs_vfid);
/* mac */
bnx2x_init_mac_obj(bp, &q->mac_obj,
cl_id, q->cid, func_id,
bnx2x_vf_sp(bp, vf, mac_rdata),
bnx2x_vf_sp_map(bp, vf, mac_rdata),
BNX2X_FILTER_MAC_PENDING,
&vf->filter_state,
BNX2X_OBJ_TYPE_RX_TX,
&vf->vf_macs_pool);
/* vlan */
bnx2x_init_vlan_obj(bp, &q->vlan_obj,
cl_id, q->cid, func_id,
bnx2x_vf_sp(bp, vf, vlan_rdata),
bnx2x_vf_sp_map(bp, vf, vlan_rdata),
BNX2X_FILTER_VLAN_PENDING,
&vf->filter_state,
BNX2X_OBJ_TYPE_RX_TX,
&vf->vf_vlans_pool);
/* vlan-mac */
bnx2x_init_vlan_mac_obj(bp, &q->vlan_mac_obj,
cl_id, q->cid, func_id,
bnx2x_vf_sp(bp, vf, vlan_mac_rdata),
bnx2x_vf_sp_map(bp, vf, vlan_mac_rdata),
BNX2X_FILTER_VLAN_MAC_PENDING,
&vf->filter_state,
BNX2X_OBJ_TYPE_RX_TX,
&vf->vf_macs_pool,
&vf->vf_vlans_pool);
/* mcast */
bnx2x_init_mcast_obj(bp, &vf->mcast_obj, cl_id,
q->cid, func_id, func_id,
bnx2x_vf_sp(bp, vf, mcast_rdata),
bnx2x_vf_sp_map(bp, vf, mcast_rdata),
BNX2X_FILTER_MCAST_PENDING,
&vf->filter_state,
BNX2X_OBJ_TYPE_RX_TX);
/* rss */
bnx2x_init_rss_config_obj(bp, &vf->rss_conf_obj, cl_id, q->cid,
func_id, func_id,
bnx2x_vf_sp(bp, vf, rss_rdata),
bnx2x_vf_sp_map(bp, vf, rss_rdata),
BNX2X_FILTER_RSS_CONF_PENDING,
&vf->filter_state,
BNX2X_OBJ_TYPE_RX_TX);
vf->leading_rss = cl_id;
q->is_leading = true;
q->sp_initialized = true;
}
/* ask the pf to open a queue for the vf */
int bnx2x_vfpf_setup_q(struct bnx2x *bp, struct bnx2x_fastpath *fp,
bool is_leading)
{
struct vfpf_setup_q_tlv *req = &bp->vf2pf_mbox->req.setup_q;
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
u8 fp_idx = fp->index;
u16 tpa_agg_size = 0, flags = 0;
int rc;
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SETUP_Q, sizeof(*req));
/* select tpa mode to request */
if (fp->mode != TPA_MODE_DISABLED) {
flags |= VFPF_QUEUE_FLG_TPA;
flags |= VFPF_QUEUE_FLG_TPA_IPV6;
if (fp->mode == TPA_MODE_GRO)
flags |= VFPF_QUEUE_FLG_TPA_GRO;
tpa_agg_size = TPA_AGG_SIZE;
}
if (is_leading)
flags |= VFPF_QUEUE_FLG_LEADING_RSS;
/* calculate queue flags */
flags |= VFPF_QUEUE_FLG_STATS;
flags |= VFPF_QUEUE_FLG_CACHE_ALIGN;
flags |= VFPF_QUEUE_FLG_VLAN;
/* Common */
req->vf_qid = fp_idx;
req->param_valid = VFPF_RXQ_VALID | VFPF_TXQ_VALID;
/* Rx */
req->rxq.rcq_addr = fp->rx_comp_mapping;
req->rxq.rcq_np_addr = fp->rx_comp_mapping + BCM_PAGE_SIZE;
req->rxq.rxq_addr = fp->rx_desc_mapping;
req->rxq.sge_addr = fp->rx_sge_mapping;
req->rxq.vf_sb = fp_idx;
req->rxq.sb_index = HC_INDEX_ETH_RX_CQ_CONS;
req->rxq.hc_rate = bp->rx_ticks ? 1000000/bp->rx_ticks : 0;
req->rxq.mtu = bp->dev->mtu;
req->rxq.buf_sz = fp->rx_buf_size;
req->rxq.sge_buf_sz = BCM_PAGE_SIZE * PAGES_PER_SGE;
req->rxq.tpa_agg_sz = tpa_agg_size;
req->rxq.max_sge_pkt = SGE_PAGE_ALIGN(bp->dev->mtu) >> SGE_PAGE_SHIFT;
req->rxq.max_sge_pkt = ((req->rxq.max_sge_pkt + PAGES_PER_SGE - 1) &
(~(PAGES_PER_SGE-1))) >> PAGES_PER_SGE_SHIFT;
req->rxq.flags = flags;
req->rxq.drop_flags = 0;
req->rxq.cache_line_log = BNX2X_RX_ALIGN_SHIFT;
req->rxq.stat_id = -1; /* No stats at the moment */
/* Tx */
req->txq.txq_addr = fp->txdata_ptr[FIRST_TX_COS_INDEX]->tx_desc_mapping;
req->txq.vf_sb = fp_idx;
req->txq.sb_index = HC_INDEX_ETH_TX_CQ_CONS_COS0;
req->txq.hc_rate = bp->tx_ticks ? 1000000/bp->tx_ticks : 0;
req->txq.flags = flags;
req->txq.traffic_type = LLFC_TRAFFIC_TYPE_NW;
/* add list termination tlv */
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
if (rc)
BNX2X_ERR("Sending SETUP_Q message for queue[%d] failed!\n",
fp_idx);
if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
BNX2X_ERR("Status of SETUP_Q for queue[%d] is %d\n",
fp_idx, resp->hdr.status);
rc = -EINVAL;
}
bnx2x_vfpf_finalize(bp, &req->first_tlv);
return rc;
}
static int bnx2x_vfpf_teardown_queue(struct bnx2x *bp, int qidx)
{
struct vfpf_q_op_tlv *req = &bp->vf2pf_mbox->req.q_op;
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
int rc;
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_TEARDOWN_Q,
sizeof(*req));
req->vf_qid = qidx;
/* add list termination tlv */
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
if (rc) {
BNX2X_ERR("Sending TEARDOWN for queue %d failed: %d\n", qidx,
rc);
goto out;
}
/* PF failed the transaction */
if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
BNX2X_ERR("TEARDOWN for queue %d failed: %d\n", qidx,
resp->hdr.status);
rc = -EINVAL;
}
out:
bnx2x_vfpf_finalize(bp, &req->first_tlv);
return rc;
}
/* request pf to add a mac for the vf */
int bnx2x_vfpf_config_mac(struct bnx2x *bp, u8 *addr, u8 vf_qid, bool set)
{
struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content;
int rc = 0;
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
sizeof(*req));
req->flags = VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED;
req->vf_qid = vf_qid;
req->n_mac_vlan_filters = 1;
req->filters[0].flags = VFPF_Q_FILTER_DEST_MAC_VALID;
if (set)
req->filters[0].flags |= VFPF_Q_FILTER_SET;
/* sample bulletin board for new mac */
bnx2x_sample_bulletin(bp);
/* copy mac from device to request */
memcpy(req->filters[0].mac, addr, ETH_ALEN);
/* add list termination tlv */
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
/* send message to pf */
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
if (rc) {
BNX2X_ERR("failed to send message to pf. rc was %d\n", rc);
goto out;
}
/* failure may mean PF was configured with a new mac for us */
while (resp->hdr.status == PFVF_STATUS_FAILURE) {
DP(BNX2X_MSG_IOV,
"vfpf SET MAC failed. Check bulletin board for new posts\n");
/* copy mac from bulletin to device */
memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN);
/* check if bulletin board was updated */
if (bnx2x_sample_bulletin(bp) == PFVF_BULLETIN_UPDATED) {
/* copy mac from device to request */
memcpy(req->filters[0].mac, bp->dev->dev_addr,
ETH_ALEN);
/* send message to pf */
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status,
bp->vf2pf_mbox_mapping);
} else {
/* no new info in bulletin */
break;
}
}
if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
BNX2X_ERR("vfpf SET MAC failed: %d\n", resp->hdr.status);
rc = -EINVAL;
}
out:
bnx2x_vfpf_finalize(bp, &req->first_tlv);
return rc;
}
/* request pf to config rss table for vf queues*/
int bnx2x_vfpf_config_rss(struct bnx2x *bp,
struct bnx2x_config_rss_params *params)
{
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
struct vfpf_rss_tlv *req = &bp->vf2pf_mbox->req.update_rss;
int rc = 0;
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_UPDATE_RSS,
sizeof(*req));
/* add list termination tlv */
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
memcpy(req->ind_table, params->ind_table, T_ETH_INDIRECTION_TABLE_SIZE);
memcpy(req->rss_key, params->rss_key, sizeof(params->rss_key));
req->ind_table_size = T_ETH_INDIRECTION_TABLE_SIZE;
req->rss_key_size = T_ETH_RSS_KEY;
req->rss_result_mask = params->rss_result_mask;
/* flags handled individually for backward/forward compatibility */
if (params->rss_flags & (1 << BNX2X_RSS_MODE_DISABLED))
req->rss_flags |= VFPF_RSS_MODE_DISABLED;
if (params->rss_flags & (1 << BNX2X_RSS_MODE_REGULAR))
req->rss_flags |= VFPF_RSS_MODE_REGULAR;
if (params->rss_flags & (1 << BNX2X_RSS_SET_SRCH))
req->rss_flags |= VFPF_RSS_SET_SRCH;
if (params->rss_flags & (1 << BNX2X_RSS_IPV4))
req->rss_flags |= VFPF_RSS_IPV4;
if (params->rss_flags & (1 << BNX2X_RSS_IPV4_TCP))
req->rss_flags |= VFPF_RSS_IPV4_TCP;
if (params->rss_flags & (1 << BNX2X_RSS_IPV4_UDP))
req->rss_flags |= VFPF_RSS_IPV4_UDP;
if (params->rss_flags & (1 << BNX2X_RSS_IPV6))
req->rss_flags |= VFPF_RSS_IPV6;
if (params->rss_flags & (1 << BNX2X_RSS_IPV6_TCP))
req->rss_flags |= VFPF_RSS_IPV6_TCP;
if (params->rss_flags & (1 << BNX2X_RSS_IPV6_UDP))
req->rss_flags |= VFPF_RSS_IPV6_UDP;
DP(BNX2X_MSG_IOV, "rss flags %x\n", req->rss_flags);
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
/* send message to pf */
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
if (rc) {
BNX2X_ERR("failed to send message to pf. rc was %d\n", rc);
goto out;
}
if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
/* Since older drivers don't support this feature (and VF has
* no way of knowing other than failing this), don't propagate
* an error in this case.
*/
DP(BNX2X_MSG_IOV,
"Failed to send rss message to PF over VF-PF channel [%d]\n",
resp->hdr.status);
}
out:
bnx2x_vfpf_finalize(bp, &req->first_tlv);
return rc;
}
int bnx2x_vfpf_set_mcast(struct net_device *dev)
{
struct bnx2x *bp = netdev_priv(dev);
struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
int rc = 0, i = 0;
struct netdev_hw_addr *ha;
if (bp->state != BNX2X_STATE_OPEN) {
DP(NETIF_MSG_IFUP, "state is %x, returning\n", bp->state);
return -EINVAL;
}
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
sizeof(*req));
/* Get Rx mode requested */
DP(NETIF_MSG_IFUP, "dev->flags = %x\n", dev->flags);
/* We support PFVF_MAX_MULTICAST_PER_VF mcast addresses tops */
if (netdev_mc_count(dev) > PFVF_MAX_MULTICAST_PER_VF) {
DP(NETIF_MSG_IFUP,
"VF supports not more than %d multicast MAC addresses\n",
PFVF_MAX_MULTICAST_PER_VF);
rc = -EINVAL;
goto out;
}
netdev_for_each_mc_addr(ha, dev) {
DP(NETIF_MSG_IFUP, "Adding mcast MAC: %pM\n",
bnx2x_mc_addr(ha));
memcpy(req->multicast[i], bnx2x_mc_addr(ha), ETH_ALEN);
i++;
}
req->n_multicast = i;
req->flags |= VFPF_SET_Q_FILTERS_MULTICAST_CHANGED;
req->vf_qid = 0;
/* add list termination tlv */
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
if (rc) {
BNX2X_ERR("Sending a message failed: %d\n", rc);
goto out;
}
if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
BNX2X_ERR("Set Rx mode/multicast failed: %d\n",
resp->hdr.status);
rc = -EINVAL;
}
out:
bnx2x_vfpf_finalize(bp, &req->first_tlv);
return rc;
}
/* request pf to add a vlan for the vf */
int bnx2x_vfpf_update_vlan(struct bnx2x *bp, u16 vid, u8 vf_qid, bool add)
{
struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
int rc = 0;
if (!(bp->acquire_resp.pfdev_info.pf_cap & PFVF_CAP_VLAN_FILTER)) {
DP(BNX2X_MSG_IOV, "HV does not support vlan filtering\n");
return 0;
}
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
sizeof(*req));
req->flags = VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED;
req->vf_qid = vf_qid;
req->n_mac_vlan_filters = 1;
req->filters[0].flags = VFPF_Q_FILTER_VLAN_TAG_VALID;
if (add)
req->filters[0].flags |= VFPF_Q_FILTER_SET;
/* sample bulletin board for hypervisor vlan */
bnx2x_sample_bulletin(bp);
if (bp->shadow_bulletin.content.valid_bitmap & 1 << VLAN_VALID) {
BNX2X_ERR("Hypervisor will decline the request, avoiding\n");
rc = -EINVAL;
goto out;
}
req->filters[0].vlan_tag = vid;
/* add list termination tlv */
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
/* send message to pf */
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
if (rc) {
BNX2X_ERR("failed to send message to pf. rc was %d\n", rc);
goto out;
}
if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
BNX2X_ERR("vfpf %s VLAN %d failed\n", add ? "add" : "del",
vid);
rc = -EINVAL;
}
out:
bnx2x_vfpf_finalize(bp, &req->first_tlv);
return rc;
}
int bnx2x_vfpf_storm_rx_mode(struct bnx2x *bp)
{
int mode = bp->rx_mode;
struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
int rc;
/* clear mailbox and prep first tlv */
bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
sizeof(*req));
DP(NETIF_MSG_IFUP, "Rx mode is %d\n", mode);
/* Ignore everything accept MODE_NONE */
if (mode == BNX2X_RX_MODE_NONE) {
req->rx_mask = VFPF_RX_MASK_ACCEPT_NONE;
} else {
/* Current PF driver will not look at the specific flags,
* but they are required when working with older drivers on hv.
*/
req->rx_mask = VFPF_RX_MASK_ACCEPT_MATCHED_MULTICAST;
req->rx_mask |= VFPF_RX_MASK_ACCEPT_MATCHED_UNICAST;
req->rx_mask |= VFPF_RX_MASK_ACCEPT_BROADCAST;
if (mode == BNX2X_RX_MODE_PROMISC)
req->rx_mask |= VFPF_RX_MASK_ACCEPT_ANY_VLAN;
}
if (bp->accept_any_vlan)
req->rx_mask |= VFPF_RX_MASK_ACCEPT_ANY_VLAN;
req->flags |= VFPF_SET_Q_FILTERS_RX_MASK_CHANGED;
req->vf_qid = 0;
/* add list termination tlv */
bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* output tlvs list */
bnx2x_dp_tlv_list(bp, req);
rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
if (rc)
BNX2X_ERR("Sending a message failed: %d\n", rc);
if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
BNX2X_ERR("Set Rx mode failed: %d\n", resp->hdr.status);
rc = -EINVAL;
}
bnx2x_vfpf_finalize(bp, &req->first_tlv);
return rc;
}
/* General service functions */
static void storm_memset_vf_mbx_ack(struct bnx2x *bp, u16 abs_fid)
{
u32 addr = BAR_CSTRORM_INTMEM +
CSTORM_VF_PF_CHANNEL_STATE_OFFSET(abs_fid);
REG_WR8(bp, addr, VF_PF_CHANNEL_STATE_READY);
}
static void storm_memset_vf_mbx_valid(struct bnx2x *bp, u16 abs_fid)
{
u32 addr = BAR_CSTRORM_INTMEM +
CSTORM_VF_PF_CHANNEL_VALID_OFFSET(abs_fid);
REG_WR8(bp, addr, 1);
}
/* enable vf_pf mailbox (aka vf-pf-channel) */
void bnx2x_vf_enable_mbx(struct bnx2x *bp, u8 abs_vfid)
{
bnx2x_vf_flr_clnup_epilog(bp, abs_vfid);
/* enable the mailbox in the FW */
storm_memset_vf_mbx_ack(bp, abs_vfid);
storm_memset_vf_mbx_valid(bp, abs_vfid);
/* enable the VF access to the mailbox */
bnx2x_vf_enable_access(bp, abs_vfid);
}
/* this works only on !E1h */
static int bnx2x_copy32_vf_dmae(struct bnx2x *bp, u8 from_vf,
dma_addr_t pf_addr, u8 vfid, u32 vf_addr_hi,
u32 vf_addr_lo, u32 len32)
{
struct dmae_command dmae;
if (CHIP_IS_E1x(bp)) {
BNX2X_ERR("Chip revision does not support VFs\n");
return DMAE_NOT_RDY;
}
if (!bp->dmae_ready) {
BNX2X_ERR("DMAE is not ready, can not copy\n");
return DMAE_NOT_RDY;
}
/* set opcode and fixed command fields */
bnx2x_prep_dmae_with_comp(bp, &dmae, DMAE_SRC_PCI, DMAE_DST_PCI);
if (from_vf) {
dmae.opcode_iov = (vfid << DMAE_COMMAND_SRC_VFID_SHIFT) |
(DMAE_SRC_VF << DMAE_COMMAND_SRC_VFPF_SHIFT) |
(DMAE_DST_PF << DMAE_COMMAND_DST_VFPF_SHIFT);
dmae.opcode |= (DMAE_C_DST << DMAE_COMMAND_C_FUNC_SHIFT);
dmae.src_addr_lo = vf_addr_lo;
dmae.src_addr_hi = vf_addr_hi;
dmae.dst_addr_lo = U64_LO(pf_addr);
dmae.dst_addr_hi = U64_HI(pf_addr);
} else {
dmae.opcode_iov = (vfid << DMAE_COMMAND_DST_VFID_SHIFT) |
(DMAE_DST_VF << DMAE_COMMAND_DST_VFPF_SHIFT) |
(DMAE_SRC_PF << DMAE_COMMAND_SRC_VFPF_SHIFT);
dmae.opcode |= (DMAE_C_SRC << DMAE_COMMAND_C_FUNC_SHIFT);
dmae.src_addr_lo = U64_LO(pf_addr);
dmae.src_addr_hi = U64_HI(pf_addr);
dmae.dst_addr_lo = vf_addr_lo;
dmae.dst_addr_hi = vf_addr_hi;
}
dmae.len = len32;
/* issue the command and wait for completion */
return bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp));
}
static void bnx2x_vf_mbx_resp_single_tlv(struct bnx2x *bp,
struct bnx2x_virtf *vf)
{
struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf->index);
u16 length, type;
/* prepare response */
type = mbx->first_tlv.tl.type;
length = type == CHANNEL_TLV_ACQUIRE ?
sizeof(struct pfvf_acquire_resp_tlv) :
sizeof(struct pfvf_general_resp_tlv);
bnx2x_add_tlv(bp, &mbx->msg->resp, 0, type, length);
bnx2x_add_tlv(bp, &mbx->msg->resp, length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
}
static void bnx2x_vf_mbx_resp_send_msg(struct bnx2x *bp,
struct bnx2x_virtf *vf,
int vf_rc)
{
struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf->index);
struct pfvf_general_resp_tlv *resp = &mbx->msg->resp.general_resp;
dma_addr_t pf_addr;
u64 vf_addr;
int rc;
bnx2x_dp_tlv_list(bp, resp);
DP(BNX2X_MSG_IOV, "mailbox vf address hi 0x%x, lo 0x%x, offset 0x%x\n",
mbx->vf_addr_hi, mbx->vf_addr_lo, mbx->first_tlv.resp_msg_offset);
resp->hdr.status = bnx2x_pfvf_status_codes(vf_rc);
/* send response */
vf_addr = HILO_U64(mbx->vf_addr_hi, mbx->vf_addr_lo) +
mbx->first_tlv.resp_msg_offset;
pf_addr = mbx->msg_mapping +
offsetof(struct bnx2x_vf_mbx_msg, resp);
/* Copy the response buffer. The first u64 is written afterwards, as
* the vf is sensitive to the header being written
*/
vf_addr += sizeof(u64);
pf_addr += sizeof(u64);
rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr, vf->abs_vfid,
U64_HI(vf_addr),
U64_LO(vf_addr),
(sizeof(union pfvf_tlvs) - sizeof(u64))/4);
if (rc) {
BNX2X_ERR("Failed to copy response body to VF %d\n",
vf->abs_vfid);
goto mbx_error;
}
vf_addr -= sizeof(u64);
pf_addr -= sizeof(u64);
/* ack the FW */
storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
/* copy the response header including status-done field,
* must be last dmae, must be after FW is acked
*/
rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr, vf->abs_vfid,
U64_HI(vf_addr),
U64_LO(vf_addr),
sizeof(u64)/4);
/* unlock channel mutex */
bnx2x_unlock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
if (rc) {
BNX2X_ERR("Failed to copy response status to VF %d\n",
vf->abs_vfid);
goto mbx_error;
}
return;
mbx_error:
bnx2x_vf_release(bp, vf);
}
static void bnx2x_vf_mbx_resp(struct bnx2x *bp,
struct bnx2x_virtf *vf,
int rc)
{
bnx2x_vf_mbx_resp_single_tlv(bp, vf);
bnx2x_vf_mbx_resp_send_msg(bp, vf, rc);
}
static void bnx2x_vf_mbx_resp_phys_port(struct bnx2x *bp,
struct bnx2x_virtf *vf,
void *buffer,
u16 *offset)
{
struct vfpf_port_phys_id_resp_tlv *port_id;
if (!(bp->flags & HAS_PHYS_PORT_ID))
return;
bnx2x_add_tlv(bp, buffer, *offset, CHANNEL_TLV_PHYS_PORT_ID,
sizeof(struct vfpf_port_phys_id_resp_tlv));
port_id = (struct vfpf_port_phys_id_resp_tlv *)
(((u8 *)buffer) + *offset);
memcpy(port_id->id, bp->phys_port_id, ETH_ALEN);
/* Offset should continue representing the offset to the tail
* of TLV data (outside this function scope)
*/
*offset += sizeof(struct vfpf_port_phys_id_resp_tlv);
}
static void bnx2x_vf_mbx_resp_fp_hsi_ver(struct bnx2x *bp,
struct bnx2x_virtf *vf,
void *buffer,
u16 *offset)
{
struct vfpf_fp_hsi_resp_tlv *fp_hsi;
bnx2x_add_tlv(bp, buffer, *offset, CHANNEL_TLV_FP_HSI_SUPPORT,
sizeof(struct vfpf_fp_hsi_resp_tlv));
fp_hsi = (struct vfpf_fp_hsi_resp_tlv *)
(((u8 *)buffer) + *offset);
fp_hsi->is_supported = (vf->fp_hsi > ETH_FP_HSI_VERSION) ? 0 : 1;
/* Offset should continue representing the offset to the tail
* of TLV data (outside this function scope)
*/
*offset += sizeof(struct vfpf_fp_hsi_resp_tlv);
}
static void bnx2x_vf_mbx_acquire_resp(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx, int vfop_status)
{
int i;
struct pfvf_acquire_resp_tlv *resp = &mbx->msg->resp.acquire_resp;
struct pf_vf_resc *resc = &resp->resc;
u8 status = bnx2x_pfvf_status_codes(vfop_status);
u16 length;
memset(resp, 0, sizeof(*resp));
/* fill in pfdev info */
resp->pfdev_info.chip_num = bp->common.chip_id;
resp->pfdev_info.db_size = bp->db_size;
resp->pfdev_info.indices_per_sb = HC_SB_MAX_INDICES_E2;
resp->pfdev_info.pf_cap = (PFVF_CAP_RSS |
PFVF_CAP_TPA |
PFVF_CAP_TPA_UPDATE |
PFVF_CAP_VLAN_FILTER);
bnx2x_fill_fw_str(bp, resp->pfdev_info.fw_ver,
sizeof(resp->pfdev_info.fw_ver));
if (status == PFVF_STATUS_NO_RESOURCE ||
status == PFVF_STATUS_SUCCESS) {
/* set resources numbers, if status equals NO_RESOURCE these
* are max possible numbers
*/
resc->num_rxqs = vf_rxq_count(vf) ? :
bnx2x_vf_max_queue_cnt(bp, vf);
resc->num_txqs = vf_txq_count(vf) ? :
bnx2x_vf_max_queue_cnt(bp, vf);
resc->num_sbs = vf_sb_count(vf);
resc->num_mac_filters = vf_mac_rules_cnt(vf);
resc->num_vlan_filters = vf_vlan_rules_cnt(vf);
resc->num_mc_filters = 0;
if (status == PFVF_STATUS_SUCCESS) {
/* fill in the allocated resources */
struct pf_vf_bulletin_content *bulletin =
BP_VF_BULLETIN(bp, vf->index);
for_each_vfq(vf, i)
resc->hw_qid[i] =
vfq_qzone_id(vf, vfq_get(vf, i));
for_each_vf_sb(vf, i) {
resc->hw_sbs[i].hw_sb_id = vf_igu_sb(vf, i);
resc->hw_sbs[i].sb_qid = vf_hc_qzone(vf, i);
}
/* if a mac has been set for this vf, supply it */
if (bulletin->valid_bitmap & 1 << MAC_ADDR_VALID) {
memcpy(resc->current_mac_addr, bulletin->mac,
ETH_ALEN);
}
}
}
DP(BNX2X_MSG_IOV, "VF[%d] ACQUIRE_RESPONSE: pfdev_info- chip_num=0x%x, db_size=%d, idx_per_sb=%d, pf_cap=0x%x\n"
"resources- n_rxq-%d, n_txq-%d, n_sbs-%d, n_macs-%d, n_vlans-%d, n_mcs-%d, fw_ver: '%s'\n",
vf->abs_vfid,
resp->pfdev_info.chip_num,
resp->pfdev_info.db_size,
resp->pfdev_info.indices_per_sb,
resp->pfdev_info.pf_cap,
resc->num_rxqs,
resc->num_txqs,
resc->num_sbs,
resc->num_mac_filters,
resc->num_vlan_filters,
resc->num_mc_filters,
resp->pfdev_info.fw_ver);
DP_CONT(BNX2X_MSG_IOV, "hw_qids- [ ");
for (i = 0; i < vf_rxq_count(vf); i++)
DP_CONT(BNX2X_MSG_IOV, "%d ", resc->hw_qid[i]);
DP_CONT(BNX2X_MSG_IOV, "], sb_info- [ ");
for (i = 0; i < vf_sb_count(vf); i++)
DP_CONT(BNX2X_MSG_IOV, "%d:%d ",
resc->hw_sbs[i].hw_sb_id,
resc->hw_sbs[i].sb_qid);
DP_CONT(BNX2X_MSG_IOV, "]\n");
/* prepare response */
length = sizeof(struct pfvf_acquire_resp_tlv);
bnx2x_add_tlv(bp, &mbx->msg->resp, 0, CHANNEL_TLV_ACQUIRE, length);
/* Handle possible VF requests for physical port identifiers.
* 'length' should continue to indicate the offset of the first empty
* place in the buffer (i.e., where next TLV should be inserted)
*/
if (bnx2x_search_tlv_list(bp, &mbx->msg->req,
CHANNEL_TLV_PHYS_PORT_ID))
bnx2x_vf_mbx_resp_phys_port(bp, vf, &mbx->msg->resp, &length);
/* `New' vfs will want to know if fastpath HSI is supported, since
* if that's not the case they could print into system log the fact
* the driver version must be updated.
*/
bnx2x_vf_mbx_resp_fp_hsi_ver(bp, vf, &mbx->msg->resp, &length);
bnx2x_add_tlv(bp, &mbx->msg->resp, length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
/* send the response */
bnx2x_vf_mbx_resp_send_msg(bp, vf, vfop_status);
}
static bool bnx2x_vf_mbx_is_windows_vm(struct bnx2x *bp,
struct vfpf_acquire_tlv *acquire)
{
/* Windows driver does one of three things:
* 1. Old driver doesn't have bulletin board address set.
* 2. 'Middle' driver sends mc_num == 32.
* 3. New driver sets the OS field.
*/
if (!acquire->bulletin_addr ||
acquire->resc_request.num_mc_filters == 32 ||
((acquire->vfdev_info.vf_os & VF_OS_MASK) ==
VF_OS_WINDOWS))
return true;
return false;
}
static int bnx2x_vf_mbx_acquire_chk_dorq(struct bnx2x *bp,
struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
/* Linux drivers which correctly set the doorbell size also
* send a physical port request
*/
if (bnx2x_search_tlv_list(bp, &mbx->msg->req,
CHANNEL_TLV_PHYS_PORT_ID))
return 0;
/* Issue does not exist in windows VMs */
if (bnx2x_vf_mbx_is_windows_vm(bp, &mbx->msg->req.acquire))
return 0;
return -EOPNOTSUPP;
}
static void bnx2x_vf_mbx_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
int rc;
struct vfpf_acquire_tlv *acquire = &mbx->msg->req.acquire;
/* log vfdef info */
DP(BNX2X_MSG_IOV,
"VF[%d] ACQUIRE: vfdev_info- vf_id %d, vf_os %d resources- n_rxq-%d, n_txq-%d, n_sbs-%d, n_macs-%d, n_vlans-%d, n_mcs-%d\n",
vf->abs_vfid, acquire->vfdev_info.vf_id, acquire->vfdev_info.vf_os,
acquire->resc_request.num_rxqs, acquire->resc_request.num_txqs,
acquire->resc_request.num_sbs, acquire->resc_request.num_mac_filters,
acquire->resc_request.num_vlan_filters,
acquire->resc_request.num_mc_filters);
/* Prevent VFs with old drivers from loading, since they calculate
* CIDs incorrectly requiring a VF-flr [VM reboot] in order to recover
* while being upgraded.
*/
rc = bnx2x_vf_mbx_acquire_chk_dorq(bp, vf, mbx);
if (rc) {
DP(BNX2X_MSG_IOV,
"VF [%d] - Can't support acquire request due to doorbell mismatch. Please update VM driver\n",
vf->abs_vfid);
goto out;
}
/* Verify the VF fastpath HSI can be supported by the loaded FW.
* Linux vfs should be oblivious to changes between v0 and v2.
*/
if (bnx2x_vf_mbx_is_windows_vm(bp, &mbx->msg->req.acquire))
vf->fp_hsi = acquire->vfdev_info.fp_hsi_ver;
else
vf->fp_hsi = max_t(u8, acquire->vfdev_info.fp_hsi_ver,
ETH_FP_HSI_VER_2);
if (vf->fp_hsi > ETH_FP_HSI_VERSION) {
DP(BNX2X_MSG_IOV,
"VF [%d] - Can't support acquire request since VF requests a FW version which is too new [%02x > %02x]\n",
vf->abs_vfid, acquire->vfdev_info.fp_hsi_ver,
ETH_FP_HSI_VERSION);
rc = -EINVAL;
goto out;
}
/* acquire the resources */
rc = bnx2x_vf_acquire(bp, vf, &acquire->resc_request);
/* 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;
}
if (acquire->vfdev_info.caps & VF_CAP_SUPPORT_VLAN_FILTER) {
DP(BNX2X_MSG_IOV, "VF[%d] supports vlan filtering\n",
vf->abs_vfid);
vf->cfg_flags |= VF_CFG_VLAN_FILTER;
} else {
vf->cfg_flags &= ~VF_CFG_VLAN_FILTER;
}
out:
/* response */
bnx2x_vf_mbx_acquire_resp(bp, vf, mbx, rc);
}
static void bnx2x_vf_mbx_init_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
struct vfpf_init_tlv *init = &mbx->msg->req.init;
int rc;
/* record ghost addresses from vf message */
vf->fw_stat_map = init->stats_addr;
vf->stats_stride = init->stats_stride;
rc = bnx2x_vf_init(bp, vf, (dma_addr_t *)init->sb_addr);
/* set VF multiqueue statistics collection mode */
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);
}
/* convert MBX queue-flags to standard SP queue-flags */
static void bnx2x_vf_mbx_set_q_flags(struct bnx2x *bp, u32 mbx_q_flags,
unsigned long *sp_q_flags)
{
if (mbx_q_flags & VFPF_QUEUE_FLG_TPA)
__set_bit(BNX2X_Q_FLG_TPA, sp_q_flags);
if (mbx_q_flags & VFPF_QUEUE_FLG_TPA_IPV6)
__set_bit(BNX2X_Q_FLG_TPA_IPV6, sp_q_flags);
if (mbx_q_flags & VFPF_QUEUE_FLG_TPA_GRO)
__set_bit(BNX2X_Q_FLG_TPA_GRO, sp_q_flags);
if (mbx_q_flags & VFPF_QUEUE_FLG_STATS)
__set_bit(BNX2X_Q_FLG_STATS, sp_q_flags);
if (mbx_q_flags & VFPF_QUEUE_FLG_VLAN)
__set_bit(BNX2X_Q_FLG_VLAN, sp_q_flags);
if (mbx_q_flags & VFPF_QUEUE_FLG_COS)
__set_bit(BNX2X_Q_FLG_COS, sp_q_flags);
if (mbx_q_flags & VFPF_QUEUE_FLG_HC)
__set_bit(BNX2X_Q_FLG_HC, sp_q_flags);
if (mbx_q_flags & VFPF_QUEUE_FLG_DHC)
__set_bit(BNX2X_Q_FLG_DHC, sp_q_flags);
if (mbx_q_flags & VFPF_QUEUE_FLG_LEADING_RSS)
__set_bit(BNX2X_Q_FLG_LEADING_RSS, sp_q_flags);
/* outer vlan removal is set according to PF's multi function mode */
if (IS_MF_SD(bp))
__set_bit(BNX2X_Q_FLG_OV, sp_q_flags);
}
static void bnx2x_vf_mbx_setup_q(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
struct vfpf_setup_q_tlv *setup_q = &mbx->msg->req.setup_q;
struct bnx2x_vf_queue_construct_params qctor;
int rc = 0;
/* verify vf_qid */
if (setup_q->vf_qid >= vf_rxq_count(vf)) {
BNX2X_ERR("vf_qid %d invalid, max queue count is %d\n",
setup_q->vf_qid, vf_rxq_count(vf));
rc = -EINVAL;
goto response;
}
/* tx queues must be setup alongside rx queues thus if the rx queue
* is not marked as valid there's nothing to do.
*/
if (setup_q->param_valid & (VFPF_RXQ_VALID|VFPF_TXQ_VALID)) {
struct bnx2x_vf_queue *q = vfq_get(vf, setup_q->vf_qid);
unsigned long q_type = 0;
struct bnx2x_queue_init_params *init_p;
struct bnx2x_queue_setup_params *setup_p;
if (bnx2x_vfq_is_leading(q))
bnx2x_leading_vfq_init(bp, vf, q);
/* re-init the VF operation context */
memset(&qctor, 0 ,
sizeof(struct bnx2x_vf_queue_construct_params));
setup_p = &qctor.prep_qsetup;
init_p = &qctor.qstate.params.init;
/* activate immediately */
__set_bit(BNX2X_Q_FLG_ACTIVE, &setup_p->flags);
if (setup_q->param_valid & VFPF_TXQ_VALID) {
struct bnx2x_txq_setup_params *txq_params =
&setup_p->txq_params;
__set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
/* save sb resource index */
q->sb_idx = setup_q->txq.vf_sb;
/* tx init */
init_p->tx.hc_rate = setup_q->txq.hc_rate;
init_p->tx.sb_cq_index = setup_q->txq.sb_index;
bnx2x_vf_mbx_set_q_flags(bp, setup_q->txq.flags,
&init_p->tx.flags);
/* tx setup - flags */
bnx2x_vf_mbx_set_q_flags(bp, setup_q->txq.flags,
&setup_p->flags);
/* tx setup - general, nothing */
/* tx setup - tx */
txq_params->dscr_map = setup_q->txq.txq_addr;
txq_params->sb_cq_index = setup_q->txq.sb_index;
txq_params->traffic_type = setup_q->txq.traffic_type;
bnx2x_vfop_qctor_dump_tx(bp, vf, init_p, setup_p,
q->index, q->sb_idx);
}
if (setup_q->param_valid & VFPF_RXQ_VALID) {
struct bnx2x_rxq_setup_params *rxq_params =
&setup_p->rxq_params;
__set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
/* Note: there is no support for different SBs
* for TX and RX
*/
q->sb_idx = setup_q->rxq.vf_sb;
/* rx init */
init_p->rx.hc_rate = setup_q->rxq.hc_rate;
init_p->rx.sb_cq_index = setup_q->rxq.sb_index;
bnx2x_vf_mbx_set_q_flags(bp, setup_q->rxq.flags,
&init_p->rx.flags);
/* rx setup - flags */
bnx2x_vf_mbx_set_q_flags(bp, setup_q->rxq.flags,
&setup_p->flags);
/* rx setup - general */
setup_p->gen_params.mtu = setup_q->rxq.mtu;
/* rx setup - rx */
rxq_params->drop_flags = setup_q->rxq.drop_flags;
rxq_params->dscr_map = setup_q->rxq.rxq_addr;
rxq_params->sge_map = setup_q->rxq.sge_addr;
rxq_params->rcq_map = setup_q->rxq.rcq_addr;
rxq_params->rcq_np_map = setup_q->rxq.rcq_np_addr;
rxq_params->buf_sz = setup_q->rxq.buf_sz;
rxq_params->tpa_agg_sz = setup_q->rxq.tpa_agg_sz;
rxq_params->max_sges_pkt = setup_q->rxq.max_sge_pkt;
rxq_params->sge_buf_sz = setup_q->rxq.sge_buf_sz;
rxq_params->cache_line_log =
setup_q->rxq.cache_line_log;
rxq_params->sb_cq_index = setup_q->rxq.sb_index;
/* rx setup - multicast engine */
if (bnx2x_vfq_is_leading(q)) {
u8 mcast_id = FW_VF_HANDLE(vf->abs_vfid);
rxq_params->mcast_engine_id = mcast_id;
__set_bit(BNX2X_Q_FLG_MCAST, &setup_p->flags);
}
bnx2x_vfop_qctor_dump_rx(bp, vf, init_p, setup_p,
q->index, q->sb_idx);
}
/* complete the preparations */
bnx2x_vfop_qctor_prep(bp, vf, q, &qctor, q_type);
rc = bnx2x_vf_queue_setup(bp, vf, q->index, &qctor);
if (rc)
goto response;
}
response:
bnx2x_vf_mbx_resp(bp, vf, rc);
}
static int bnx2x_vf_mbx_macvlan_list(struct bnx2x *bp,
struct bnx2x_virtf *vf,
struct vfpf_set_q_filters_tlv *tlv,
struct bnx2x_vf_mac_vlan_filters **pfl,
u32 type_flag)
{
int i, j;
struct bnx2x_vf_mac_vlan_filters *fl = NULL;
fl = kzalloc(struct_size(fl, filters, tlv->n_mac_vlan_filters),
GFP_KERNEL);
if (!fl)
return -ENOMEM;
for (i = 0, j = 0; i < tlv->n_mac_vlan_filters; i++) {
struct vfpf_q_mac_vlan_filter *msg_filter = &tlv->filters[i];
if ((msg_filter->flags & type_flag) != type_flag)
continue;
memset(&fl->filters[j], 0, sizeof(fl->filters[j]));
if (type_flag & VFPF_Q_FILTER_DEST_MAC_VALID) {
fl->filters[j].mac = msg_filter->mac;
fl->filters[j].type |= BNX2X_VF_FILTER_MAC;
}
if (type_flag & VFPF_Q_FILTER_VLAN_TAG_VALID) {
fl->filters[j].vid = msg_filter->vlan_tag;
fl->filters[j].type |= BNX2X_VF_FILTER_VLAN;
}
fl->filters[j].add = !!(msg_filter->flags & VFPF_Q_FILTER_SET);
fl->count++;
j++;
}
if (!fl->count)
kfree(fl);
else
*pfl = fl;
return 0;
}
static int bnx2x_vf_filters_contain(struct vfpf_set_q_filters_tlv *filters,
u32 flags)
{
int i, cnt = 0;
for (i = 0; i < filters->n_mac_vlan_filters; i++)
if ((filters->filters[i].flags & flags) == flags)
cnt++;
return cnt;
}
static void bnx2x_vf_mbx_dp_q_filter(struct bnx2x *bp, int msglvl, int idx,
struct vfpf_q_mac_vlan_filter *filter)
{
DP(msglvl, "MAC-VLAN[%d] -- flags=0x%x\n", idx, filter->flags);
if (filter->flags & VFPF_Q_FILTER_VLAN_TAG_VALID)
DP_CONT(msglvl, ", vlan=%d", filter->vlan_tag);
if (filter->flags & VFPF_Q_FILTER_DEST_MAC_VALID)
DP_CONT(msglvl, ", MAC=%pM", filter->mac);
DP_CONT(msglvl, "\n");
}
static void bnx2x_vf_mbx_dp_q_filters(struct bnx2x *bp, int msglvl,
struct vfpf_set_q_filters_tlv *filters)
{
int i;
if (filters->flags & VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED)
for (i = 0; i < filters->n_mac_vlan_filters; i++)
bnx2x_vf_mbx_dp_q_filter(bp, msglvl, i,
&filters->filters[i]);
if (filters->flags & VFPF_SET_Q_FILTERS_RX_MASK_CHANGED)
DP(msglvl, "RX-MASK=0x%x\n", filters->rx_mask);
if (filters->flags & VFPF_SET_Q_FILTERS_MULTICAST_CHANGED)
for (i = 0; i < filters->n_multicast; i++)
DP(msglvl, "MULTICAST=%pM\n", filters->multicast[i]);
}
#define VFPF_MAC_FILTER VFPF_Q_FILTER_DEST_MAC_VALID
#define VFPF_VLAN_FILTER VFPF_Q_FILTER_VLAN_TAG_VALID
#define VFPF_VLAN_MAC_FILTER (VFPF_VLAN_FILTER | VFPF_MAC_FILTER)
static int bnx2x_vf_mbx_qfilters(struct bnx2x *bp, struct bnx2x_virtf *vf)
{
int rc = 0;
struct vfpf_set_q_filters_tlv *msg =
&BP_VF_MBX(bp, vf->index)->msg->req.set_q_filters;
/* check for any mac/vlan changes */
if (msg->flags & VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED) {
struct bnx2x_vf_mac_vlan_filters *fl = NULL;
/* build vlan-mac list */
rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl,
VFPF_VLAN_MAC_FILTER);
if (rc)
goto op_err;
if (fl) {
/* set vlan-mac list */
rc = bnx2x_vf_mac_vlan_config_list(bp, vf, fl,
msg->vf_qid,
false);
if (rc)
goto op_err;
}
/* build mac list */
fl = NULL;
rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl,
VFPF_MAC_FILTER);
if (rc)
goto op_err;
if (fl) {
/* set mac list */
rc = bnx2x_vf_mac_vlan_config_list(bp, vf, fl,
msg->vf_qid,
false);
if (rc)
goto op_err;
}
/* build vlan list */
fl = NULL;
rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl,
VFPF_VLAN_FILTER);
if (rc)
goto op_err;
if (fl) {
/* set vlan list */
rc = bnx2x_vf_mac_vlan_config_list(bp, vf, fl,
msg->vf_qid,
false);
if (rc)
goto op_err;
}
}
if (msg->flags & VFPF_SET_Q_FILTERS_RX_MASK_CHANGED) {
unsigned long accept = 0;
struct pf_vf_bulletin_content *bulletin =
BP_VF_BULLETIN(bp, vf->index);
/* Ignore VF requested mode; instead set a regular mode */
if (msg->rx_mask != VFPF_RX_MASK_ACCEPT_NONE) {
__set_bit(BNX2X_ACCEPT_UNICAST, &accept);
__set_bit(BNX2X_ACCEPT_MULTICAST, &accept);
__set_bit(BNX2X_ACCEPT_BROADCAST, &accept);
}
/* any_vlan is not configured if HV is forcing VLAN
* any_vlan is configured if
* 1. VF does not support vlan filtering
* OR
* 2. VF supports vlan filtering and explicitly requested it
*/
if (!(bulletin->valid_bitmap & (1 << VLAN_VALID)) &&
(!(vf->cfg_flags & VF_CFG_VLAN_FILTER) ||
msg->rx_mask & VFPF_RX_MASK_ACCEPT_ANY_VLAN))
__set_bit(BNX2X_ACCEPT_ANY_VLAN, &accept);
/* set rx-mode */
rc = bnx2x_vf_rxmode(bp, vf, msg->vf_qid, accept);
if (rc)
goto op_err;
}
if (msg->flags & VFPF_SET_Q_FILTERS_MULTICAST_CHANGED) {
/* set mcasts */
rc = bnx2x_vf_mcast(bp, vf, msg->multicast,
msg->n_multicast, false);
if (rc)
goto op_err;
}
op_err:
if (rc)
BNX2X_ERR("QFILTERS[%d:%d] error: rc %d\n",
vf->abs_vfid, msg->vf_qid, rc);
return rc;
}
static int bnx2x_filters_validate_mac(struct bnx2x *bp,
struct bnx2x_virtf *vf,
struct vfpf_set_q_filters_tlv *filters)
{
struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vf->index);
int rc = 0;
/* if a mac was already set for this VF via the set vf mac ndo, we only
* accept mac configurations of that mac. Why accept them at all?
* because PF may have been unable to configure the mac at the time
* since queue was not set up.
*/
if (bulletin->valid_bitmap & 1 << MAC_ADDR_VALID) {
struct vfpf_q_mac_vlan_filter *filter = NULL;
int i;
for (i = 0; i < filters->n_mac_vlan_filters; i++) {
if (!(filters->filters[i].flags &
VFPF_Q_FILTER_DEST_MAC_VALID))
continue;
/* once a mac was set by ndo can only accept
* a single mac...
*/
if (filter) {
BNX2X_ERR("VF[%d] requested the addition of multiple macs after set_vf_mac ndo was called [%d filters]\n",
vf->abs_vfid,
filters->n_mac_vlan_filters);
rc = -EPERM;
goto response;
}
filter = &filters->filters[i];
}
/* ...and only the mac set by the ndo */
if (filter &&
!ether_addr_equal(filter->mac, bulletin->mac)) {
BNX2X_ERR("VF[%d] requested the addition of a mac address not matching the one configured by set_vf_mac ndo\n",
vf->abs_vfid);
rc = -EPERM;
goto response;
}
}
response:
return rc;
}
static int bnx2x_filters_validate_vlan(struct bnx2x *bp,
struct bnx2x_virtf *vf,
struct vfpf_set_q_filters_tlv *filters)
{
struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vf->index);
int rc = 0;
/* if vlan was set by hypervisor we don't allow guest to config vlan */
if (bulletin->valid_bitmap & 1 << VLAN_VALID) {
/* search for vlan filters */
if (bnx2x_vf_filters_contain(filters,
VFPF_Q_FILTER_VLAN_TAG_VALID)) {
BNX2X_ERR("VF[%d] attempted to configure vlan but one was already set by Hypervisor. Aborting request\n",
vf->abs_vfid);
rc = -EPERM;
goto response;
}
}
/* verify vf_qid */
if (filters->vf_qid > vf_rxq_count(vf)) {
rc = -EPERM;
goto response;
}
response:
return rc;
}
static void bnx2x_vf_mbx_set_q_filters(struct bnx2x *bp,
struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
struct vfpf_set_q_filters_tlv *filters = &mbx->msg->req.set_q_filters;
int rc;
rc = bnx2x_filters_validate_mac(bp, vf, filters);
if (rc)
goto response;
rc = bnx2x_filters_validate_vlan(bp, vf, filters);
if (rc)
goto response;
DP(BNX2X_MSG_IOV, "VF[%d] Q_FILTERS: queue[%d]\n",
vf->abs_vfid,
filters->vf_qid);
/* print q_filter message */
bnx2x_vf_mbx_dp_q_filters(bp, BNX2X_MSG_IOV, filters);
rc = bnx2x_vf_mbx_qfilters(bp, vf);
response:
bnx2x_vf_mbx_resp(bp, vf, rc);
}
static void bnx2x_vf_mbx_teardown_q(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
int qid = mbx->msg->req.q_op.vf_qid;
int rc;
DP(BNX2X_MSG_IOV, "VF[%d] Q_TEARDOWN: vf_qid=%d\n",
vf->abs_vfid, qid);
rc = bnx2x_vf_queue_teardown(bp, vf, qid);
bnx2x_vf_mbx_resp(bp, vf, rc);
}
static void bnx2x_vf_mbx_close_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
int rc;
DP(BNX2X_MSG_IOV, "VF[%d] VF_CLOSE\n", vf->abs_vfid);
rc = bnx2x_vf_close(bp, vf);
bnx2x_vf_mbx_resp(bp, vf, rc);
}
static void bnx2x_vf_mbx_release_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
int rc;
DP(BNX2X_MSG_IOV, "VF[%d] VF_RELEASE\n", vf->abs_vfid);
rc = bnx2x_vf_free(bp, vf);
bnx2x_vf_mbx_resp(bp, vf, rc);
}
static void bnx2x_vf_mbx_update_rss(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
struct bnx2x_config_rss_params rss;
struct vfpf_rss_tlv *rss_tlv = &mbx->msg->req.update_rss;
int rc = 0;
if (rss_tlv->ind_table_size != T_ETH_INDIRECTION_TABLE_SIZE ||
rss_tlv->rss_key_size != T_ETH_RSS_KEY) {
BNX2X_ERR("failing rss configuration of vf %d due to size mismatch\n",
vf->index);
rc = -EINVAL;
goto mbx_resp;
}
memset(&rss, 0, sizeof(struct bnx2x_config_rss_params));
/* set vfop params according to rss tlv */
memcpy(rss.ind_table, rss_tlv->ind_table,
T_ETH_INDIRECTION_TABLE_SIZE);
memcpy(rss.rss_key, rss_tlv->rss_key, sizeof(rss_tlv->rss_key));
rss.rss_obj = &vf->rss_conf_obj;
rss.rss_result_mask = rss_tlv->rss_result_mask;
/* flags handled individually for backward/forward compatibility */
rss.rss_flags = 0;
rss.ramrod_flags = 0;
if (rss_tlv->rss_flags & VFPF_RSS_MODE_DISABLED)
__set_bit(BNX2X_RSS_MODE_DISABLED, &rss.rss_flags);
if (rss_tlv->rss_flags & VFPF_RSS_MODE_REGULAR)
__set_bit(BNX2X_RSS_MODE_REGULAR, &rss.rss_flags);
if (rss_tlv->rss_flags & VFPF_RSS_SET_SRCH)
__set_bit(BNX2X_RSS_SET_SRCH, &rss.rss_flags);
if (rss_tlv->rss_flags & VFPF_RSS_IPV4)
__set_bit(BNX2X_RSS_IPV4, &rss.rss_flags);
if (rss_tlv->rss_flags & VFPF_RSS_IPV4_TCP)
__set_bit(BNX2X_RSS_IPV4_TCP, &rss.rss_flags);
if (rss_tlv->rss_flags & VFPF_RSS_IPV4_UDP)
__set_bit(BNX2X_RSS_IPV4_UDP, &rss.rss_flags);
if (rss_tlv->rss_flags & VFPF_RSS_IPV6)
__set_bit(BNX2X_RSS_IPV6, &rss.rss_flags);
if (rss_tlv->rss_flags & VFPF_RSS_IPV6_TCP)
__set_bit(BNX2X_RSS_IPV6_TCP, &rss.rss_flags);
if (rss_tlv->rss_flags & VFPF_RSS_IPV6_UDP)
__set_bit(BNX2X_RSS_IPV6_UDP, &rss.rss_flags);
if ((!(rss_tlv->rss_flags & VFPF_RSS_IPV4_TCP) &&
rss_tlv->rss_flags & VFPF_RSS_IPV4_UDP) ||
(!(rss_tlv->rss_flags & VFPF_RSS_IPV6_TCP) &&
rss_tlv->rss_flags & VFPF_RSS_IPV6_UDP)) {
BNX2X_ERR("about to hit a FW assert. aborting...\n");
rc = -EINVAL;
goto mbx_resp;
}
rc = bnx2x_vf_rss_update(bp, vf, &rss);
mbx_resp:
bnx2x_vf_mbx_resp(bp, vf, rc);
}
static int bnx2x_validate_tpa_params(struct bnx2x *bp,
struct vfpf_tpa_tlv *tpa_tlv)
{
int rc = 0;
if (tpa_tlv->tpa_client_info.max_sges_for_packet >
U_ETH_MAX_SGES_FOR_PACKET) {
rc = -EINVAL;
BNX2X_ERR("TPA update: max_sges received %d, max is %d\n",
tpa_tlv->tpa_client_info.max_sges_for_packet,
U_ETH_MAX_SGES_FOR_PACKET);
}
if (tpa_tlv->tpa_client_info.max_tpa_queues > MAX_AGG_QS(bp)) {
rc = -EINVAL;
BNX2X_ERR("TPA update: max_tpa_queues received %d, max is %d\n",
tpa_tlv->tpa_client_info.max_tpa_queues,
MAX_AGG_QS(bp));
}
return rc;
}
static void bnx2x_vf_mbx_update_tpa(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
struct bnx2x_queue_update_tpa_params vf_op_params;
struct vfpf_tpa_tlv *tpa_tlv = &mbx->msg->req.update_tpa;
int rc = 0;
memset(&vf_op_params, 0, sizeof(vf_op_params));
if (bnx2x_validate_tpa_params(bp, tpa_tlv))
goto mbx_resp;
vf_op_params.complete_on_both_clients =
tpa_tlv->tpa_client_info.complete_on_both_clients;
vf_op_params.dont_verify_thr =
tpa_tlv->tpa_client_info.dont_verify_thr;
vf_op_params.max_agg_sz =
tpa_tlv->tpa_client_info.max_agg_size;
vf_op_params.max_sges_pkt =
tpa_tlv->tpa_client_info.max_sges_for_packet;
vf_op_params.max_tpa_queues =
tpa_tlv->tpa_client_info.max_tpa_queues;
vf_op_params.sge_buff_sz =
tpa_tlv->tpa_client_info.sge_buff_size;
vf_op_params.sge_pause_thr_high =
tpa_tlv->tpa_client_info.sge_pause_thr_high;
vf_op_params.sge_pause_thr_low =
tpa_tlv->tpa_client_info.sge_pause_thr_low;
vf_op_params.tpa_mode =
tpa_tlv->tpa_client_info.tpa_mode;
vf_op_params.update_ipv4 =
tpa_tlv->tpa_client_info.update_ipv4;
vf_op_params.update_ipv6 =
tpa_tlv->tpa_client_info.update_ipv6;
rc = bnx2x_vf_tpa_update(bp, vf, tpa_tlv, &vf_op_params);
mbx_resp:
bnx2x_vf_mbx_resp(bp, vf, rc);
}
/* dispatch request */
static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
int i;
if (vf->state == VF_LOST) {
/* Just ack the FW and return if VFs are lost
* in case of parity error. VFs are supposed to be timedout
* on waiting for PF response.
*/
DP(BNX2X_MSG_IOV,
"VF 0x%x lost, not handling the request\n", vf->abs_vfid);
storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
return;
}
/* check if tlv type is known */
if (bnx2x_tlv_supported(mbx->first_tlv.tl.type)) {
/* Lock the per vf op mutex and note the locker's identity.
* The unlock will take place in mbx response.
*/
bnx2x_lock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
/* switch on the opcode */
switch (mbx->first_tlv.tl.type) {
case CHANNEL_TLV_ACQUIRE:
bnx2x_vf_mbx_acquire(bp, vf, mbx);
return;
case CHANNEL_TLV_INIT:
bnx2x_vf_mbx_init_vf(bp, vf, mbx);
return;
case CHANNEL_TLV_SETUP_Q:
bnx2x_vf_mbx_setup_q(bp, vf, mbx);
return;
case CHANNEL_TLV_SET_Q_FILTERS:
bnx2x_vf_mbx_set_q_filters(bp, vf, mbx);
return;
case CHANNEL_TLV_TEARDOWN_Q:
bnx2x_vf_mbx_teardown_q(bp, vf, mbx);
return;
case CHANNEL_TLV_CLOSE:
bnx2x_vf_mbx_close_vf(bp, vf, mbx);
return;
case CHANNEL_TLV_RELEASE:
bnx2x_vf_mbx_release_vf(bp, vf, mbx);
return;
case CHANNEL_TLV_UPDATE_RSS:
bnx2x_vf_mbx_update_rss(bp, vf, mbx);
return;
case CHANNEL_TLV_UPDATE_TPA:
bnx2x_vf_mbx_update_tpa(bp, vf, mbx);
return;
}
} else {
/* unknown TLV - this may belong to a VF driver from the future
* - a version written after this PF driver was written, which
* supports features unknown as of yet. Too bad since we don't
* support them. Or this may be because someone wrote a crappy
* VF driver and is sending garbage over the channel.
*/
BNX2X_ERR("unknown TLV. type %d length %d vf->state was %d. first 20 bytes of mailbox buffer:\n",
mbx->first_tlv.tl.type, mbx->first_tlv.tl.length,
vf->state);
for (i = 0; i < 20; i++)
DP_CONT(BNX2X_MSG_IOV, "%x ",
mbx->msg->req.tlv_buf_size.tlv_buffer[i]);
}
/* can we respond to VF (do we have an address for it?) */
if (vf->state == VF_ACQUIRED || vf->state == VF_ENABLED) {
/* notify the VF that we do not support this request */
bnx2x_vf_mbx_resp(bp, vf, PFVF_STATUS_NOT_SUPPORTED);
} else {
/* can't send a response since this VF is unknown to us
* just ack the FW to release the mailbox and unlock
* the channel.
*/
storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
/* Firmware ack should be written before unlocking channel */
bnx2x_unlock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
}
}
void bnx2x_vf_mbx_schedule(struct bnx2x *bp,
struct vf_pf_event_data *vfpf_event)
{
u8 vf_idx;
DP(BNX2X_MSG_IOV,
"vf pf event received: vfid %d, address_hi %x, address lo %x",
vfpf_event->vf_id, vfpf_event->msg_addr_hi, vfpf_event->msg_addr_lo);
/* Sanity checks consider removing later */
/* check if the vf_id is valid */
if (vfpf_event->vf_id - BP_VFDB(bp)->sriov.first_vf_in_pf >
BNX2X_NR_VIRTFN(bp)) {
BNX2X_ERR("Illegal vf_id %d max allowed: %d\n",
vfpf_event->vf_id, BNX2X_NR_VIRTFN(bp));
return;
}
vf_idx = bnx2x_vf_idx_by_abs_fid(bp, vfpf_event->vf_id);
/* Update VFDB with current message and schedule its handling */
mutex_lock(&BP_VFDB(bp)->event_mutex);
BP_VF_MBX(bp, vf_idx)->vf_addr_hi =
le32_to_cpu(vfpf_event->msg_addr_hi);
BP_VF_MBX(bp, vf_idx)->vf_addr_lo =
le32_to_cpu(vfpf_event->msg_addr_lo);
BP_VFDB(bp)->event_occur |= (1ULL << vf_idx);
mutex_unlock(&BP_VFDB(bp)->event_mutex);
bnx2x_schedule_iov_task(bp, BNX2X_IOV_HANDLE_VF_MSG);
}
/* handle new vf-pf messages */
void bnx2x_vf_mbx(struct bnx2x *bp)
{
struct bnx2x_vfdb *vfdb = BP_VFDB(bp);
u64 events;
u8 vf_idx;
int rc;
if (!vfdb)
return;
mutex_lock(&vfdb->event_mutex);
events = vfdb->event_occur;
vfdb->event_occur = 0;
mutex_unlock(&vfdb->event_mutex);
for_each_vf(bp, vf_idx) {
struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf_idx);
struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
/* Handle VFs which have pending events */
if (!(events & (1ULL << vf_idx)))
continue;
DP(BNX2X_MSG_IOV,
"Handling vf pf event vfid %d, address: [%x:%x], resp_offset 0x%x\n",
vf_idx, mbx->vf_addr_hi, mbx->vf_addr_lo,
mbx->first_tlv.resp_msg_offset);
/* dmae to get the VF request */
rc = bnx2x_copy32_vf_dmae(bp, true, mbx->msg_mapping,
vf->abs_vfid, mbx->vf_addr_hi,
mbx->vf_addr_lo,
sizeof(union vfpf_tlvs)/4);
if (rc) {
BNX2X_ERR("Failed to copy request VF %d\n",
vf->abs_vfid);
bnx2x_vf_release(bp, vf);
return;
}
/* process the VF message header */
mbx->first_tlv = mbx->msg->req.first_tlv;
/* Clean response buffer to refrain from falsely
* seeing chains.
*/
memset(&mbx->msg->resp, 0, sizeof(union pfvf_tlvs));
/* dispatch the request (will prepare the response) */
bnx2x_vf_mbx_request(bp, vf, mbx);
}
}
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)
{
struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vf);
dma_addr_t pf_addr = BP_VF_BULLETIN_DMA(bp)->mapping +
vf * BULLETIN_CONTENT_SIZE;
dma_addr_t vf_addr = bnx2x_vf(bp, vf, bulletin_map);
int rc;
/* can only update vf after init took place */
if (bnx2x_vf(bp, vf, state) != VF_ENABLED &&
bnx2x_vf(bp, vf, state) != VF_ACQUIRED)
return 0;
/* increment bulletin board version and compute crc */
bulletin->version++;
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,
bnx2x_vf(bp, vf, abs_vfid), U64_HI(vf_addr),
U64_LO(vf_addr), bulletin->length / 4);
return rc;
}
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