static int bnxt_send_msg(struct bnxt_en_dev *edev, int ulp_id,
struct bnxt_fw_msg *fw_msg)
{
struct net_device *dev = edev->net;
struct bnxt *bp = netdev_priv(dev);
struct input *req;
int rc;
mutex_lock(&bp->hwrm_cmd_lock);
req = fw_msg->msg;
req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr);
rc = _hwrm_send_message(bp, fw_msg->msg, fw_msg->msg_len,
fw_msg->timeout);
if (!rc) {
struct output *resp = bp->hwrm_cmd_resp_addr;
u32 len = le16_to_cpu(resp->resp_len);
if (fw_msg->resp_max_len < len)
len = fw_msg->resp_max_len;
memcpy(fw_msg->resp, resp, len);
}
mutex_unlock(&bp->hwrm_cmd_lock);
return rc;
}
static int bnxt_hwrm_exec_fwd_resp(struct bnxt *bp, struct bnxt_vf_info *vf,
u32 msg_size)
{
int rc = 0;
struct hwrm_exec_fwd_resp_input req = {0};
struct hwrm_exec_fwd_resp_output *resp = bp->hwrm_cmd_resp_addr;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_EXEC_FWD_RESP, -1, -1);
/* Set the new target id */
req.target_id = cpu_to_le16(vf->fw_fid);
req.encap_resp_target_id = cpu_to_le16(vf->fw_fid);
memcpy(req.encap_request, vf->hwrm_cmd_req_addr, msg_size);
mutex_lock(&bp->hwrm_cmd_lock);
rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
if (rc) {
netdev_err(bp->dev, "hwrm_exec_fw_resp failed. rc:%d\n", rc);
goto exec_fwd_resp_exit;
}
if (resp->error_code) {
netdev_err(bp->dev, "hwrm_exec_fw_resp error %d\n",
resp->error_code);
rc = -1;
}
exec_fwd_resp_exit:
mutex_unlock(&bp->hwrm_cmd_lock);
return rc;
}
static int hwrm_cfa_encap_record_alloc(struct bnxt *bp,
struct ip_tunnel_key *encap_key,
struct bnxt_tc_l2_key *l2_info,
__le32 *encap_record_handle)
{
struct hwrm_cfa_encap_record_alloc_output *resp =
bp->hwrm_cmd_resp_addr;
struct hwrm_cfa_encap_record_alloc_input req = { 0 };
struct hwrm_cfa_encap_data_vxlan *encap =
(struct hwrm_cfa_encap_data_vxlan *)&req.encap_data;
struct hwrm_vxlan_ipv4_hdr *encap_ipv4 =
(struct hwrm_vxlan_ipv4_hdr *)encap->l3;
int rc;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_ENCAP_RECORD_ALLOC, -1, -1);
req.encap_type = CFA_ENCAP_RECORD_ALLOC_REQ_ENCAP_TYPE_VXLAN;
ether_addr_copy(encap->dst_mac_addr, l2_info->dmac);
ether_addr_copy(encap->src_mac_addr, l2_info->smac);
if (l2_info->num_vlans) {
encap->num_vlan_tags = l2_info->num_vlans;
encap->ovlan_tci = l2_info->inner_vlan_tci;
encap->ovlan_tpid = l2_info->inner_vlan_tpid;
}
encap_ipv4->ver_hlen = 4 << VXLAN_IPV4_HDR_VER_HLEN_VERSION_SFT;
encap_ipv4->ver_hlen |= 5 << VXLAN_IPV4_HDR_VER_HLEN_HEADER_LENGTH_SFT;
encap_ipv4->ttl = encap_key->ttl;
encap_ipv4->dest_ip_addr = encap_key->u.ipv4.dst;
encap_ipv4->src_ip_addr = encap_key->u.ipv4.src;
encap_ipv4->protocol = IPPROTO_UDP;
encap->dst_port = encap_key->tp_dst;
encap->vni = tunnel_id_to_key32(encap_key->tun_id);
mutex_lock(&bp->hwrm_cmd_lock);
rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
if (!rc)
*encap_record_handle = resp->encap_record_id;
else
netdev_info(bp->dev, "%s: Error rc=%d", __func__, rc);
mutex_unlock(&bp->hwrm_cmd_lock);
if (rc)
rc = -EIO;
return rc;
}
static int nvm_get_dir_info(struct net_device *dev, u32 *entries, u32 *length)
{
struct bnxt *bp = netdev_priv(dev);
int rc;
struct hwrm_nvm_get_dir_info_input req = {0};
struct hwrm_nvm_get_dir_info_output *output = bp->hwrm_cmd_resp_addr;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_DIR_INFO, -1, -1);
mutex_lock(&bp->hwrm_cmd_lock);
rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
if (!rc) {
*entries = le32_to_cpu(output->entries);
*length = le32_to_cpu(output->entry_length);
}
mutex_unlock(&bp->hwrm_cmd_lock);
return rc;
}
static int bnxt_hwrm_func_vf_resource_free(struct bnxt *bp, int num_vfs)
{
int i, rc = 0;
struct bnxt_pf_info *pf = &bp->pf;
struct hwrm_func_vf_resc_free_input req = {0};
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_RESC_FREE, -1, -1);
mutex_lock(&bp->hwrm_cmd_lock);
for (i = pf->first_vf_id; i < pf->first_vf_id + num_vfs; i++) {
req.vf_id = cpu_to_le16(i);
rc = _hwrm_send_message(bp, &req, sizeof(req),
HWRM_CMD_TIMEOUT);
if (rc)
break;
}
mutex_unlock(&bp->hwrm_cmd_lock);
return rc;
}
void bnxt_update_vf_mac(struct bnxt *bp)
{
struct hwrm_func_qcaps_input req = {0};
struct hwrm_func_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCAPS, -1, -1);
req.fid = cpu_to_le16(0xffff);
mutex_lock(&bp->hwrm_cmd_lock);
if (_hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT))
goto update_vf_mac_exit;
if (!is_valid_ether_addr(resp->perm_mac_address))
goto update_vf_mac_exit;
if (!ether_addr_equal(resp->perm_mac_address, bp->vf.mac_addr))
memcpy(bp->vf.mac_addr, resp->perm_mac_address, ETH_ALEN);
/* overwrite netdev dev_adr with admin VF MAC */
memcpy(bp->dev->dev_addr, bp->vf.mac_addr, ETH_ALEN);
update_vf_mac_exit:
mutex_unlock(&bp->hwrm_cmd_lock);
}
static int bnxt_hwrm_fwd_async_event_cmpl(struct bnxt *bp,
struct bnxt_vf_info *vf, u16 event_id)
{
struct hwrm_fwd_async_event_cmpl_output *resp = bp->hwrm_cmd_resp_addr;
struct hwrm_fwd_async_event_cmpl_input req = {0};
struct hwrm_async_event_cmpl *async_cmpl;
int rc = 0;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FWD_ASYNC_EVENT_CMPL, -1, -1);
if (vf)
req.encap_async_event_target_id = cpu_to_le16(vf->fw_fid);
else
/* broadcast this async event to all VFs */
req.encap_async_event_target_id = cpu_to_le16(0xffff);
async_cmpl = (struct hwrm_async_event_cmpl *)req.encap_async_event_cmpl;
async_cmpl->type = cpu_to_le16(ASYNC_EVENT_CMPL_TYPE_HWRM_ASYNC_EVENT);
async_cmpl->event_id = cpu_to_le16(event_id);
mutex_lock(&bp->hwrm_cmd_lock);
rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
if (rc) {
netdev_err(bp->dev, "hwrm_fwd_async_event_cmpl failed. rc:%d\n",
rc);
goto fwd_async_event_cmpl_exit;
}
if (resp->error_code) {
netdev_err(bp->dev, "hwrm_fwd_async_event_cmpl error %d\n",
resp->error_code);
rc = -1;
}
fwd_async_event_cmpl_exit:
mutex_unlock(&bp->hwrm_cmd_lock);
return rc;
}
/* only call by PF to reserve resources for VF */
static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs)
{
u32 rc = 0, mtu, i;
u16 vf_tx_rings, vf_rx_rings, vf_cp_rings, vf_stat_ctx, vf_vnics;
u16 vf_ring_grps;
struct hwrm_func_cfg_input req = {0};
struct bnxt_pf_info *pf = &bp->pf;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
/* Remaining rings are distributed equally amongs VF's for now */
/* TODO: the following workaroud is needed to restrict total number
* of vf_cp_rings not exceed number of HW ring groups. This WA should
* be removed once new HWRM provides HW ring groups capability in
* hwrm_func_qcap.
*/
vf_cp_rings = min_t(u16, pf->max_cp_rings, pf->max_stat_ctxs);
vf_cp_rings = (vf_cp_rings - bp->cp_nr_rings) / num_vfs;
/* TODO: restore this logic below once the WA above is removed */
/* vf_cp_rings = (pf->max_cp_rings - bp->cp_nr_rings) / num_vfs; */
vf_stat_ctx = (pf->max_stat_ctxs - bp->num_stat_ctxs) / num_vfs;
if (bp->flags & BNXT_FLAG_AGG_RINGS)
vf_rx_rings = (pf->max_rx_rings - bp->rx_nr_rings * 2) /
num_vfs;
else
vf_rx_rings = (pf->max_rx_rings - bp->rx_nr_rings) / num_vfs;
vf_ring_grps = (bp->pf.max_hw_ring_grps - bp->rx_nr_rings) / num_vfs;
vf_tx_rings = (pf->max_tx_rings - bp->tx_nr_rings) / num_vfs;
req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_MTU |
FUNC_CFG_REQ_ENABLES_MRU |
FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS |
FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS |
FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS |
FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS |
FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS |
FUNC_CFG_REQ_ENABLES_NUM_L2_CTXS |
FUNC_CFG_REQ_ENABLES_NUM_VNICS |
FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS);
mtu = bp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
req.mru = cpu_to_le16(mtu);
req.mtu = cpu_to_le16(mtu);
req.num_rsscos_ctxs = cpu_to_le16(1);
req.num_cmpl_rings = cpu_to_le16(vf_cp_rings);
req.num_tx_rings = cpu_to_le16(vf_tx_rings);
req.num_rx_rings = cpu_to_le16(vf_rx_rings);
req.num_hw_ring_grps = cpu_to_le16(vf_ring_grps);
req.num_l2_ctxs = cpu_to_le16(4);
vf_vnics = 1;
req.num_vnics = cpu_to_le16(vf_vnics);
/* FIXME spec currently uses 1 bit for stats ctx */
req.num_stat_ctxs = cpu_to_le16(vf_stat_ctx);
mutex_lock(&bp->hwrm_cmd_lock);
for (i = 0; i < num_vfs; i++) {
req.fid = cpu_to_le16(pf->first_vf_id + i);
rc = _hwrm_send_message(bp, &req, sizeof(req),
HWRM_CMD_TIMEOUT);
if (rc)
break;
pf->active_vfs = i + 1;
pf->vf[i].fw_fid = le16_to_cpu(req.fid);
}
mutex_unlock(&bp->hwrm_cmd_lock);
if (!rc) {
pf->max_tx_rings -= vf_tx_rings * num_vfs;
pf->max_rx_rings -= vf_rx_rings * num_vfs;
pf->max_hw_ring_grps -= vf_ring_grps * num_vfs;
pf->max_cp_rings -= vf_cp_rings * num_vfs;
pf->max_rsscos_ctxs -= num_vfs;
pf->max_stat_ctxs -= vf_stat_ctx * num_vfs;
pf->max_vnics -= vf_vnics * num_vfs;
}
return rc;
}
static int hwrm_cfa_decap_filter_alloc(struct bnxt *bp,
struct bnxt_tc_flow *flow,
struct bnxt_tc_l2_key *l2_info,
__le32 ref_decap_handle,
__le32 *decap_filter_handle)
{
struct hwrm_cfa_decap_filter_alloc_output *resp =
bp->hwrm_cmd_resp_addr;
struct hwrm_cfa_decap_filter_alloc_input req = { 0 };
struct ip_tunnel_key *tun_key = &flow->tun_key;
u32 enables = 0;
int rc;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_DECAP_FILTER_ALLOC, -1, -1);
req.flags = cpu_to_le32(CFA_DECAP_FILTER_ALLOC_REQ_FLAGS_OVS_TUNNEL);
enables |= CFA_DECAP_FILTER_ALLOC_REQ_ENABLES_TUNNEL_TYPE |
CFA_DECAP_FILTER_ALLOC_REQ_ENABLES_IP_PROTOCOL;
req.tunnel_type = CFA_DECAP_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
req.ip_protocol = CFA_DECAP_FILTER_ALLOC_REQ_IP_PROTOCOL_UDP;
if (flow->flags & BNXT_TC_FLOW_FLAGS_TUNL_ID) {
enables |= CFA_DECAP_FILTER_ALLOC_REQ_ENABLES_TUNNEL_ID;
/* tunnel_id is wrongly defined in hsi defn. as __le32 */
req.tunnel_id = tunnel_id_to_key32(tun_key->tun_id);
}
if (flow->flags & BNXT_TC_FLOW_FLAGS_TUNL_ETH_ADDRS) {
enables |= CFA_DECAP_FILTER_ALLOC_REQ_ENABLES_DST_MACADDR;
ether_addr_copy(req.dst_macaddr, l2_info->dmac);
}
if (l2_info->num_vlans) {
enables |= CFA_DECAP_FILTER_ALLOC_REQ_ENABLES_T_IVLAN_VID;
req.t_ivlan_vid = l2_info->inner_vlan_tci;
}
enables |= CFA_DECAP_FILTER_ALLOC_REQ_ENABLES_ETHERTYPE;
req.ethertype = htons(ETH_P_IP);
if (flow->flags & BNXT_TC_FLOW_FLAGS_TUNL_IPV4_ADDRS) {
enables |= CFA_DECAP_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR |
CFA_DECAP_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR |
CFA_DECAP_FILTER_ALLOC_REQ_ENABLES_IPADDR_TYPE;
req.ip_addr_type = CFA_DECAP_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV4;
req.dst_ipaddr[0] = tun_key->u.ipv4.dst;
req.src_ipaddr[0] = tun_key->u.ipv4.src;
}
if (flow->flags & BNXT_TC_FLOW_FLAGS_TUNL_PORTS) {
enables |= CFA_DECAP_FILTER_ALLOC_REQ_ENABLES_DST_PORT;
req.dst_port = tun_key->tp_dst;
}
/* Eventhough the decap_handle returned by hwrm_cfa_decap_filter_alloc
* is defined as __le32, l2_ctxt_ref_id is defined in HSI as __le16.
*/
req.l2_ctxt_ref_id = (__force __le16)ref_decap_handle;
req.enables = cpu_to_le32(enables);
mutex_lock(&bp->hwrm_cmd_lock);
rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
if (!rc)
*decap_filter_handle = resp->decap_filter_id;
else
netdev_info(bp->dev, "%s: Error rc=%d", __func__, rc);
mutex_unlock(&bp->hwrm_cmd_lock);
if (rc)
rc = -EIO;
return rc;
}
static int bnxt_hwrm_cfa_flow_alloc(struct bnxt *bp, struct bnxt_tc_flow *flow,
__le16 ref_flow_handle,
__le32 tunnel_handle, __le16 *flow_handle)
{
struct hwrm_cfa_flow_alloc_output *resp = bp->hwrm_cmd_resp_addr;
struct bnxt_tc_actions *actions = &flow->actions;
struct bnxt_tc_l3_key *l3_mask = &flow->l3_mask;
struct bnxt_tc_l3_key *l3_key = &flow->l3_key;
struct hwrm_cfa_flow_alloc_input req = { 0 };
u16 flow_flags = 0, action_flags = 0;
int rc;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_FLOW_ALLOC, -1, -1);
req.src_fid = cpu_to_le16(flow->src_fid);
req.ref_flow_handle = ref_flow_handle;
if (actions->flags & BNXT_TC_ACTION_FLAG_TUNNEL_DECAP ||
actions->flags & BNXT_TC_ACTION_FLAG_TUNNEL_ENCAP) {
req.tunnel_handle = tunnel_handle;
flow_flags |= CFA_FLOW_ALLOC_REQ_FLAGS_TUNNEL;
action_flags |= CFA_FLOW_ALLOC_REQ_ACTION_FLAGS_TUNNEL;
}
req.ethertype = flow->l2_key.ether_type;
req.ip_proto = flow->l4_key.ip_proto;
if (flow->flags & BNXT_TC_FLOW_FLAGS_ETH_ADDRS) {
memcpy(req.dmac, flow->l2_key.dmac, ETH_ALEN);
memcpy(req.smac, flow->l2_key.smac, ETH_ALEN);
}
if (flow->l2_key.num_vlans > 0) {
flow_flags |= CFA_FLOW_ALLOC_REQ_FLAGS_NUM_VLAN_ONE;
/* FW expects the inner_vlan_tci value to be set
* in outer_vlan_tci when num_vlans is 1 (which is
* always the case in TC.)
*/
req.outer_vlan_tci = flow->l2_key.inner_vlan_tci;
}
/* If all IP and L4 fields are wildcarded then this is an L2 flow */
if (is_wildcard(l3_mask, sizeof(*l3_mask)) &&
is_wildcard(&flow->l4_mask, sizeof(flow->l4_mask))) {
flow_flags |= CFA_FLOW_ALLOC_REQ_FLAGS_FLOWTYPE_L2;
} else {
flow_flags |= flow->l2_key.ether_type == htons(ETH_P_IP) ?
CFA_FLOW_ALLOC_REQ_FLAGS_FLOWTYPE_IPV4 :
CFA_FLOW_ALLOC_REQ_FLAGS_FLOWTYPE_IPV6;
if (flow->flags & BNXT_TC_FLOW_FLAGS_IPV4_ADDRS) {
req.ip_dst[0] = l3_key->ipv4.daddr.s_addr;
req.ip_dst_mask_len =
inet_mask_len(l3_mask->ipv4.daddr.s_addr);
req.ip_src[0] = l3_key->ipv4.saddr.s_addr;
req.ip_src_mask_len =
inet_mask_len(l3_mask->ipv4.saddr.s_addr);
} else if (flow->flags & BNXT_TC_FLOW_FLAGS_IPV6_ADDRS) {
memcpy(req.ip_dst, l3_key->ipv6.daddr.s6_addr32,
sizeof(req.ip_dst));
req.ip_dst_mask_len =
ipv6_mask_len(&l3_mask->ipv6.daddr);
memcpy(req.ip_src, l3_key->ipv6.saddr.s6_addr32,
sizeof(req.ip_src));
req.ip_src_mask_len =
ipv6_mask_len(&l3_mask->ipv6.saddr);
}
}
if (flow->flags & BNXT_TC_FLOW_FLAGS_PORTS) {
req.l4_src_port = flow->l4_key.ports.sport;
req.l4_src_port_mask = flow->l4_mask.ports.sport;
req.l4_dst_port = flow->l4_key.ports.dport;
req.l4_dst_port_mask = flow->l4_mask.ports.dport;
} else if (flow->flags & BNXT_TC_FLOW_FLAGS_ICMP) {
/* l4 ports serve as type/code when ip_proto is ICMP */
req.l4_src_port = htons(flow->l4_key.icmp.type);
req.l4_src_port_mask = htons(flow->l4_mask.icmp.type);
req.l4_dst_port = htons(flow->l4_key.icmp.code);
req.l4_dst_port_mask = htons(flow->l4_mask.icmp.code);
}
req.flags = cpu_to_le16(flow_flags);
if (actions->flags & BNXT_TC_ACTION_FLAG_DROP) {
action_flags |= CFA_FLOW_ALLOC_REQ_ACTION_FLAGS_DROP;
} else {
if (actions->flags & BNXT_TC_ACTION_FLAG_FWD) {
action_flags |= CFA_FLOW_ALLOC_REQ_ACTION_FLAGS_FWD;
req.dst_fid = cpu_to_le16(actions->dst_fid);
}
if (actions->flags & BNXT_TC_ACTION_FLAG_PUSH_VLAN) {
action_flags |=
CFA_FLOW_ALLOC_REQ_ACTION_FLAGS_L2_HEADER_REWRITE;
req.l2_rewrite_vlan_tpid = actions->push_vlan_tpid;
req.l2_rewrite_vlan_tci = actions->push_vlan_tci;
memcpy(&req.l2_rewrite_dmac, &req.dmac, ETH_ALEN);
memcpy(&req.l2_rewrite_smac, &req.smac, ETH_ALEN);
}
if (actions->flags & BNXT_TC_ACTION_FLAG_POP_VLAN) {
action_flags |=
CFA_FLOW_ALLOC_REQ_ACTION_FLAGS_L2_HEADER_REWRITE;
/* Rewrite config with tpid = 0 implies vlan pop */
req.l2_rewrite_vlan_tpid = 0;
memcpy(&req.l2_rewrite_dmac, &req.dmac, ETH_ALEN);
memcpy(&req.l2_rewrite_smac, &req.smac, ETH_ALEN);
}
}
req.action_flags = cpu_to_le16(action_flags);
mutex_lock(&bp->hwrm_cmd_lock);
rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
if (!rc)
*flow_handle = resp->flow_handle;
mutex_unlock(&bp->hwrm_cmd_lock);
if (rc == HWRM_ERR_CODE_RESOURCE_ALLOC_ERROR)
rc = -ENOSPC;
else if (rc)
rc = -EIO;
return rc;
}