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googlers / maze / linux / f0f6b80368133411414762d1ce42d983ff618c95 / . / drivers / net / ethernet / broadcom / bnx2x / bnx2x_vfpf.c
blob: 928b074d7d80bdf9b71ea2a7e5121d9c393050ba [file] [log] [blame]
/* bnx2x_vfpf.c: Broadcom Everest network driver.
*
* Copyright 2009-2013 Broadcom Corporation
*
* Unless you and Broadcom 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 Broadcom software provided under a
* license other than the GPL, without Broadcom's express prior written
* consent.
*
* Maintained by: Eilon Greenstein <eilong@broadcom.com>
* Written by: Shmulik Ravid <shmulikr@broadcom.com>
* Ariel Elior <ariele@broadcom.com>
*/
#include "bnx2x.h"
#include "bnx2x_cmn.h"
#include <linux/crc32.h>
/* place a given tlv on the tlv buffer at a given offset */
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 */
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 */
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);
}
/* list the types and lengths of the tlvs on the buffer */
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 = 600, interval = 100; /* wait for 60 seconds */
if (*done) {
BNX2X_ERR("done was non zero before message to pf was sent\n");
WARN_ON(true);
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(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;
}
BNX2X_ERR("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;
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->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;
/* pf 2 vf bulletin board address */
req->bulletin_addr = bp->pf2vf_bulletin_mapping;
/* 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);
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
* 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 =
bp->acquire_resp.resc.num_txqs;
req->resc_request.num_rxqs =
bp->acquire_resp.resc.num_rxqs;
req->resc_request.num_sbs =
bp->acquire_resp.resc.num_sbs;
req->resc_request.num_mac_filters =
bp->acquire_resp.resc.num_mac_filters;
req->resc_request.num_vlan_filters =
bp->acquire_resp.resc.num_vlan_filters;
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 {
/* PF reports error */
BNX2X_ERR("Failed to get the requested amount of resources: %d. Breaking...\n",
bp->acquire_resp.hdr.status);
rc = -EAGAIN;
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 = 1;
bp->igu_base_sb = bp->acquire_resp.resc.hw_sbs[0].hw_sb_id;
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);
/* 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);
}
/* ask the pf to open a queue for the vf */
int bnx2x_vfpf_setup_q(struct bnx2x *bp, int fp_idx)
{
struct vfpf_setup_q_tlv *req = &bp->vf2pf_mbox->req.setup_q;
struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
struct bnx2x_fastpath *fp = &bp->fp[fp_idx];
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->disable_tpa) {
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;
}
/* calculate queue flags */
flags |= VFPF_QUEUE_FLG_STATS;
flags |= VFPF_QUEUE_FLG_CACHE_ALIGN;
flags |= VFPF_QUEUE_FLG_VLAN;
DP(NETIF_MSG_IFUP, "vlan removal enabled\n");
/* 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;
}
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_MAC;
/* 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 0;
}
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, 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);
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++;
}
/* We support four PFVF_MAX_MULTICAST_PER_VF mcast
* addresses tops
*/
if (i >= PFVF_MAX_MULTICAST_PER_VF) {
DP(NETIF_MSG_IFUP,
"VF supports not more than %d multicast MAC addresses\n",
PFVF_MAX_MULTICAST_PER_VF);
return -EINVAL;
}
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 0;
}
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);
switch (mode) {
case BNX2X_RX_MODE_NONE: /* no Rx */
req->rx_mask = VFPF_RX_MASK_ACCEPT_NONE;
break;
case BNX2X_RX_MODE_NORMAL:
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;
break;
case BNX2X_RX_MODE_ALLMULTI:
req->rx_mask = VFPF_RX_MASK_ACCEPT_ALL_MULTICAST;
req->rx_mask |= VFPF_RX_MASK_ACCEPT_MATCHED_UNICAST;
req->rx_mask |= VFPF_RX_MASK_ACCEPT_BROADCAST;
break;
case BNX2X_RX_MODE_PROMISC:
req->rx_mask = VFPF_RX_MASK_ACCEPT_ALL_UNICAST;
req->rx_mask |= VFPF_RX_MASK_ACCEPT_ALL_MULTICAST;
req->rx_mask |= VFPF_RX_MASK_ACCEPT_BROADCAST;
break;
default:
BNX2X_ERR("BAD rx mode (%d)\n", mode);
rc = -EINVAL;
goto out;
}
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;
}
out:
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);
}
static inline void bnx2x_set_vf_mbxs_valid(struct bnx2x *bp)
{
int i;
for_each_vf(bp, i)
storm_memset_vf_mbx_valid(bp, bnx2x_vf(bp, i, abs_vfid));
}
/* enable vf_pf mailbox (aka vf-pf-chanell) */
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;
bnx2x_dp_dmae(bp, &dmae, BNX2X_MSG_DMAE);
/* issue the command and wait for completion */
return bnx2x_issue_dmae_with_comp(bp, &dmae);
}
static void bnx2x_vf_mbx_resp(struct bnx2x *bp, struct bnx2x_virtf *vf)
{
struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf->index);
u64 vf_addr;
dma_addr_t pf_addr;
u16 length, type;
int rc;
struct pfvf_general_resp_tlv *resp = &mbx->msg->resp.general_resp;
/* 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, resp, 0, type, length);
resp->hdr.status = bnx2x_pfvf_status_codes(vf->op_rc);
bnx2x_add_tlv(bp, resp, length, CHANNEL_TLV_LIST_END,
sizeof(struct channel_list_end_tlv));
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);
/* 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 body, if there is one, before the header, as the vf
* is sensitive to the header being written
*/
if (resp->hdr.tl.length > sizeof(u64)) {
length = resp->hdr.tl.length - sizeof(u64);
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),
length/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);
mmiowb();
/* initiate dmae to send the response */
mbx->flags &= ~VF_MSG_INPROCESS;
/* 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, false); /* non blocking */
}
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);
memset(resp, 0, sizeof(*resp));
/* fill in pfdev info */
resp->pfdev_info.chip_num = bp->common.chip_id;
resp->pfdev_info.db_size = (1 << BNX2X_DB_SHIFT);
resp->pfdev_info.indices_per_sb = HC_SB_MAX_INDICES_E2;
resp->pfdev_info.pf_cap = (PFVF_CAP_RSS |
/* PFVF_CAP_DHC |*/ PFVF_CAP_TPA);
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");
/* send the response */
vf->op_rc = vfop_status;
bnx2x_vf_mbx_resp(bp, vf);
}
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);
/* 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;
/* 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;
/* record ghost addresses from vf message */
vf->spq_map = init->spq_addr;
vf->fw_stat_map = init->stats_addr;
vf->op_rc = bnx2x_vf_init(bp, vf, (dma_addr_t *)init->sb_addr);
/* response */
bnx2x_vf_mbx_resp(bp, vf);
}
/* 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);
/* outer vlan removal is set according to the PF's multi fuction 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_vfop_cmd cmd = {
.done = bnx2x_vf_mbx_resp,
.block = false,
};
/* 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));
vf->op_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;
/* reinit the VF operation context */
memset(&vf->op_params.qctor, 0 , sizeof(vf->op_params.qctor));
setup_p = &vf->op_params.qctor.prep_qsetup;
init_p = &vf->op_params.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;
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, &vf->op_params.qctor, q_type);
vf->op_rc = bnx2x_vfop_qsetup_cmd(bp, vf, &cmd, q->index);
if (vf->op_rc)
goto response;
return;
}
response:
bnx2x_vf_mbx_resp(bp, vf);
}
enum bnx2x_vfop_filters_state {
BNX2X_VFOP_MBX_Q_FILTERS_MACS,
BNX2X_VFOP_MBX_Q_FILTERS_VLANS,
BNX2X_VFOP_MBX_Q_FILTERS_RXMODE,
BNX2X_VFOP_MBX_Q_FILTERS_MCAST,
BNX2X_VFOP_MBX_Q_FILTERS_DONE
};
static int bnx2x_vf_mbx_macvlan_list(struct bnx2x *bp,
struct bnx2x_virtf *vf,
struct vfpf_set_q_filters_tlv *tlv,
struct bnx2x_vfop_filters **pfl,
u32 type_flag)
{
int i, j;
struct bnx2x_vfop_filters *fl = NULL;
size_t fsz;
fsz = tlv->n_mac_vlan_filters * sizeof(struct bnx2x_vfop_filter) +
sizeof(struct bnx2x_vfop_filters);
fl = kzalloc(fsz, GFP_KERNEL);
if (!fl)
return -ENOMEM;
INIT_LIST_HEAD(&fl->head);
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;
if (type_flag == VFPF_Q_FILTER_DEST_MAC_VALID) {
fl->filters[j].mac = msg_filter->mac;
fl->filters[j].type = BNX2X_VFOP_FILTER_MAC;
} else {
fl->filters[j].vid = msg_filter->vlan_tag;
fl->filters[j].type = BNX2X_VFOP_FILTER_VLAN;
}
fl->filters[j].add =
(msg_filter->flags & VFPF_Q_FILTER_SET_MAC) ?
true : false;
list_add_tail(&fl->filters[j++].link, &fl->head);
}
if (list_empty(&fl->head))
kfree(fl);
else
*pfl = fl;
return 0;
}
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
static void bnx2x_vfop_mbx_qfilters(struct bnx2x *bp, struct bnx2x_virtf *vf)
{
int rc;
struct vfpf_set_q_filters_tlv *msg =
&BP_VF_MBX(bp, vf->index)->msg->req.set_q_filters;
struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf);
enum bnx2x_vfop_filters_state state = vfop->state;
struct bnx2x_vfop_cmd cmd = {
.done = bnx2x_vfop_mbx_qfilters,
.block = false,
};
DP(BNX2X_MSG_IOV, "STATE: %d\n", state);
if (vfop->rc < 0)
goto op_err;
switch (state) {
case BNX2X_VFOP_MBX_Q_FILTERS_MACS:
/* next state */
vfop->state = BNX2X_VFOP_MBX_Q_FILTERS_VLANS;
/* check for any vlan/mac changes */
if (msg->flags & VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED) {
/* build mac list */
struct bnx2x_vfop_filters *fl = NULL;
vfop->rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl,
VFPF_MAC_FILTER);
if (vfop->rc)
goto op_err;
if (fl) {
/* set mac list */
rc = bnx2x_vfop_mac_list_cmd(bp, vf, &cmd, fl,
msg->vf_qid,
false);
if (rc) {
vfop->rc = rc;
goto op_err;
}
return;
}
}
/* fall through */
case BNX2X_VFOP_MBX_Q_FILTERS_VLANS:
/* next state */
vfop->state = BNX2X_VFOP_MBX_Q_FILTERS_RXMODE;
/* check for any vlan/mac changes */
if (msg->flags & VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED) {
/* build vlan list */
struct bnx2x_vfop_filters *fl = NULL;
vfop->rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl,
VFPF_VLAN_FILTER);
if (vfop->rc)
goto op_err;
if (fl) {
/* set vlan list */
rc = bnx2x_vfop_vlan_list_cmd(bp, vf, &cmd, fl,
msg->vf_qid,
false);
if (rc) {
vfop->rc = rc;
goto op_err;
}
return;
}
}
/* fall through */
case BNX2X_VFOP_MBX_Q_FILTERS_RXMODE:
/* next state */
vfop->state = BNX2X_VFOP_MBX_Q_FILTERS_MCAST;
if (msg->flags & VFPF_SET_Q_FILTERS_RX_MASK_CHANGED) {
unsigned long accept = 0;
/* covert VF-PF if mask to bnx2x accept flags */
if (msg->rx_mask & VFPF_RX_MASK_ACCEPT_MATCHED_UNICAST)
__set_bit(BNX2X_ACCEPT_UNICAST, &accept);
if (msg->rx_mask &
VFPF_RX_MASK_ACCEPT_MATCHED_MULTICAST)
__set_bit(BNX2X_ACCEPT_MULTICAST, &accept);
if (msg->rx_mask & VFPF_RX_MASK_ACCEPT_ALL_UNICAST)
__set_bit(BNX2X_ACCEPT_ALL_UNICAST, &accept);
if (msg->rx_mask & VFPF_RX_MASK_ACCEPT_ALL_MULTICAST)
__set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &accept);
if (msg->rx_mask & VFPF_RX_MASK_ACCEPT_BROADCAST)
__set_bit(BNX2X_ACCEPT_BROADCAST, &accept);
/* A packet arriving the vf's mac should be accepted
* with any vlan
*/
__set_bit(BNX2X_ACCEPT_ANY_VLAN, &accept);
/* set rx-mode */
rc = bnx2x_vfop_rxmode_cmd(bp, vf, &cmd,
msg->vf_qid, accept);
if (rc) {
vfop->rc = rc;
goto op_err;
}
return;
}
/* fall through */
case BNX2X_VFOP_MBX_Q_FILTERS_MCAST:
/* next state */
vfop->state = BNX2X_VFOP_MBX_Q_FILTERS_DONE;
if (msg->flags & VFPF_SET_Q_FILTERS_MULTICAST_CHANGED) {
/* set mcasts */
rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, msg->multicast,
msg->n_multicast, false);
if (rc) {
vfop->rc = rc;
goto op_err;
}
return;
}
/* fall through */
op_done:
case BNX2X_VFOP_MBX_Q_FILTERS_DONE:
bnx2x_vfop_end(bp, vf, vfop);
return;
op_err:
BNX2X_ERR("QFILTERS[%d:%d] error: rc %d\n",
vf->abs_vfid, msg->vf_qid, vfop->rc);
goto op_done;
default:
bnx2x_vfop_default(state);
}
}
static int bnx2x_vfop_mbx_qfilters_cmd(struct bnx2x *bp,
struct bnx2x_virtf *vf,
struct bnx2x_vfop_cmd *cmd)
{
struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
if (vfop) {
bnx2x_vfop_opset(BNX2X_VFOP_MBX_Q_FILTERS_MACS,
bnx2x_vfop_mbx_qfilters, cmd->done);
return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_mbx_qfilters,
cmd->block);
}
return -ENOMEM;
}
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;
struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vf->index);
struct bnx2x_vfop_cmd cmd = {
.done = bnx2x_vf_mbx_resp,
.block = false,
};
/* 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) {
/* once a mac was set by ndo can only accept a single mac... */
if (filters->n_mac_vlan_filters > 1) {
BNX2X_ERR("VF[%d] requested the addition of multiple macs after set_vf_mac ndo was called\n",
vf->abs_vfid);
vf->op_rc = -EPERM;
goto response;
}
/* ...and only the mac set by the ndo */
if (filters->n_mac_vlan_filters == 1 &&
memcmp(filters->filters->mac, bulletin->mac, ETH_ALEN)) {
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);
vf->op_rc = -EPERM;
goto response;
}
}
/* verify vf_qid */
if (filters->vf_qid > vf_rxq_count(vf))
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);
vf->op_rc = bnx2x_vfop_mbx_qfilters_cmd(bp, vf, &cmd);
if (vf->op_rc)
goto response;
return;
response:
bnx2x_vf_mbx_resp(bp, vf);
}
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;
struct bnx2x_vfop_cmd cmd = {
.done = bnx2x_vf_mbx_resp,
.block = false,
};
DP(BNX2X_MSG_IOV, "VF[%d] Q_TEARDOWN: vf_qid=%d\n",
vf->abs_vfid, qid);
vf->op_rc = bnx2x_vfop_qdown_cmd(bp, vf, &cmd, qid);
if (vf->op_rc)
bnx2x_vf_mbx_resp(bp, vf);
}
static void bnx2x_vf_mbx_close_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
struct bnx2x_vfop_cmd cmd = {
.done = bnx2x_vf_mbx_resp,
.block = false,
};
DP(BNX2X_MSG_IOV, "VF[%d] VF_CLOSE\n", vf->abs_vfid);
vf->op_rc = bnx2x_vfop_close_cmd(bp, vf, &cmd);
if (vf->op_rc)
bnx2x_vf_mbx_resp(bp, vf);
}
static void bnx2x_vf_mbx_release_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
struct bnx2x_vfop_cmd cmd = {
.done = bnx2x_vf_mbx_resp,
.block = false,
};
DP(BNX2X_MSG_IOV, "VF[%d] VF_RELEASE\n", vf->abs_vfid);
vf->op_rc = bnx2x_vfop_release_cmd(bp, vf, &cmd);
if (vf->op_rc)
bnx2x_vf_mbx_resp(bp, vf);
}
/* dispatch request */
static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct bnx2x_vf_mbx *mbx)
{
int i;
/* 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);
break;
case CHANNEL_TLV_INIT:
bnx2x_vf_mbx_init_vf(bp, vf, mbx);
break;
case CHANNEL_TLV_SETUP_Q:
bnx2x_vf_mbx_setup_q(bp, vf, mbx);
break;
case CHANNEL_TLV_SET_Q_FILTERS:
bnx2x_vf_mbx_set_q_filters(bp, vf, mbx);
break;
case CHANNEL_TLV_TEARDOWN_Q:
bnx2x_vf_mbx_teardown_q(bp, vf, mbx);
break;
case CHANNEL_TLV_CLOSE:
bnx2x_vf_mbx_close_vf(bp, vf, mbx);
break;
case CHANNEL_TLV_RELEASE:
bnx2x_vf_mbx_release_vf(bp, vf, mbx);
break;
}
} 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. first 20 bytes of mailbox buffer:\n",
mbx->first_tlv.tl.type, mbx->first_tlv.tl.length);
for (i = 0; i < 20; i++)
DP_CONT(BNX2X_MSG_IOV, "%x ",
mbx->msg->req.tlv_buf_size.tlv_buffer[i]);
/* test whether we can respond to the VF (do we have an address
* for it?)
*/
if (vf->state == VF_ACQUIRED) {
/* mbx_resp uses the op_rc of the VF */
vf->op_rc = PFVF_STATUS_NOT_SUPPORTED;
/* notify the VF that we do not support this request */
bnx2x_vf_mbx_resp(bp, vf);
} else {
/* can't send a response since this VF is unknown to us
* just unlock the channel and be done with.
*/
bnx2x_unlock_vf_pf_channel(bp, vf,
mbx->first_tlv.tl.type);
}
}
}
/* handle new vf-pf message */
void bnx2x_vf_mbx(struct bnx2x *bp, struct vf_pf_event_data *vfpf_event)
{
struct bnx2x_virtf *vf;
struct bnx2x_vf_mbx *mbx;
u8 vf_idx;
int rc;
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));
goto mbx_done;
}
vf_idx = bnx2x_vf_idx_by_abs_fid(bp, vfpf_event->vf_id);
mbx = BP_VF_MBX(bp, vf_idx);
/* verify an event is not currently being processed -
* debug failsafe only
*/
if (mbx->flags & VF_MSG_INPROCESS) {
BNX2X_ERR("Previous message is still being processed, vf_id %d\n",
vfpf_event->vf_id);
goto mbx_done;
}
vf = BP_VF(bp, vf_idx);
/* save the VF message address */
mbx->vf_addr_hi = vfpf_event->msg_addr_hi;
mbx->vf_addr_lo = vfpf_event->msg_addr_lo;
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);
/* 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);
goto mbx_error;
}
/* process the VF message header */
mbx->first_tlv = mbx->msg->req.first_tlv;
/* dispatch the request (will prepare the response) */
bnx2x_vf_mbx_request(bp, vf, mbx);
goto mbx_done;
mbx_error:
bnx2x_vf_release(bp, vf, false); /* non blocking */
mbx_done:
return;
}
/* 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++;
bulletin->length = BULLETIN_CONTENT_SIZE;
bulletin->crc = bnx2x_crc_vf_bulletin(bp, bulletin);
/* 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;
}