numam-dpdk/drivers/net/octeontx2/otx2_vlan.c
Satheesh Paul c8238116ec net/octeontx2: fix VLAN filter
This patch fixes incorrect MCAM key preparation when creating
MCAM entry to allow VLAN IDs after vlan filtering is enabled on port.

Fixes: ba1b3b081e ("net/octeontx2: support VLAN offloads")
Cc: stable@dpdk.org

Signed-off-by: Satheesh Paul <psatheesh@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
2021-03-08 14:31:22 +01:00

1036 lines
25 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(C) 2019 Marvell International Ltd.
*/
#include <rte_malloc.h>
#include <rte_tailq.h>
#include "otx2_ethdev.h"
#include "otx2_flow.h"
#define VLAN_ID_MATCH 0x1
#define VTAG_F_MATCH 0x2
#define MAC_ADDR_MATCH 0x4
#define QINQ_F_MATCH 0x8
#define VLAN_DROP 0x10
#define DEF_F_ENTRY 0x20
enum vtag_cfg_dir {
VTAG_TX,
VTAG_RX
};
static int
nix_vlan_mcam_enb_dis(struct otx2_eth_dev *dev,
uint32_t entry, const int enable)
{
struct npc_mcam_ena_dis_entry_req *req;
struct otx2_mbox *mbox = dev->mbox;
int rc = -EINVAL;
if (enable)
req = otx2_mbox_alloc_msg_npc_mcam_ena_entry(mbox);
else
req = otx2_mbox_alloc_msg_npc_mcam_dis_entry(mbox);
req->entry = entry;
rc = otx2_mbox_process_msg(mbox, NULL);
return rc;
}
static void
nix_set_rx_vlan_action(struct rte_eth_dev *eth_dev,
struct mcam_entry *entry, bool qinq, bool drop)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
int pcifunc = otx2_pfvf_func(dev->pf, dev->vf);
uint64_t action = 0, vtag_action = 0;
action = NIX_RX_ACTIONOP_UCAST;
if (eth_dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
action = NIX_RX_ACTIONOP_RSS;
action |= (uint64_t)(dev->rss_info.alg_idx) << 56;
}
action |= (uint64_t)pcifunc << 4;
entry->action = action;
if (drop) {
entry->action &= ~((uint64_t)0xF);
entry->action |= NIX_RX_ACTIONOP_DROP;
return;
}
if (!qinq) {
/* VTAG0 fields denote CTAG in single vlan case */
vtag_action |= (NIX_RX_VTAGACTION_VTAG_VALID << 15);
vtag_action |= (NPC_LID_LB << 8);
vtag_action |= NIX_RX_VTAGACTION_VTAG0_RELPTR;
} else {
/* VTAG0 & VTAG1 fields denote CTAG & STAG respectively */
vtag_action |= (NIX_RX_VTAGACTION_VTAG_VALID << 15);
vtag_action |= (NPC_LID_LB << 8);
vtag_action |= NIX_RX_VTAGACTION_VTAG1_RELPTR;
vtag_action |= (NIX_RX_VTAGACTION_VTAG_VALID << 47);
vtag_action |= ((uint64_t)(NPC_LID_LB) << 40);
vtag_action |= (NIX_RX_VTAGACTION_VTAG0_RELPTR << 32);
}
entry->vtag_action = vtag_action;
}
static void
nix_set_tx_vlan_action(struct mcam_entry *entry, enum rte_vlan_type type,
int vtag_index)
{
union {
uint64_t reg;
struct nix_tx_vtag_action_s act;
} vtag_action;
uint64_t action;
action = NIX_TX_ACTIONOP_UCAST_DEFAULT;
/*
* Take offset from LA since in case of untagged packet,
* lbptr is zero.
*/
if (type == ETH_VLAN_TYPE_OUTER) {
vtag_action.act.vtag0_def = vtag_index;
vtag_action.act.vtag0_lid = NPC_LID_LA;
vtag_action.act.vtag0_op = NIX_TX_VTAGOP_INSERT;
vtag_action.act.vtag0_relptr = NIX_TX_VTAGACTION_VTAG0_RELPTR;
} else {
vtag_action.act.vtag1_def = vtag_index;
vtag_action.act.vtag1_lid = NPC_LID_LA;
vtag_action.act.vtag1_op = NIX_TX_VTAGOP_INSERT;
vtag_action.act.vtag1_relptr = NIX_TX_VTAGACTION_VTAG1_RELPTR;
}
entry->action = action;
entry->vtag_action = vtag_action.reg;
}
static int
nix_vlan_mcam_free(struct otx2_eth_dev *dev, uint32_t entry)
{
struct npc_mcam_free_entry_req *req;
struct otx2_mbox *mbox = dev->mbox;
int rc = -EINVAL;
req = otx2_mbox_alloc_msg_npc_mcam_free_entry(mbox);
req->entry = entry;
rc = otx2_mbox_process_msg(mbox, NULL);
return rc;
}
static int
nix_vlan_mcam_write(struct rte_eth_dev *eth_dev, uint16_t ent_idx,
struct mcam_entry *entry, uint8_t intf, uint8_t ena)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct npc_mcam_write_entry_req *req;
struct otx2_mbox *mbox = dev->mbox;
struct msghdr *rsp;
int rc = -EINVAL;
req = otx2_mbox_alloc_msg_npc_mcam_write_entry(mbox);
req->entry = ent_idx;
req->intf = intf;
req->enable_entry = ena;
memcpy(&req->entry_data, entry, sizeof(struct mcam_entry));
rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
return rc;
}
static int
nix_vlan_mcam_alloc_and_write(struct rte_eth_dev *eth_dev,
struct mcam_entry *entry,
uint8_t intf, bool drop)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct npc_mcam_alloc_and_write_entry_req *req;
struct npc_mcam_alloc_and_write_entry_rsp *rsp;
struct otx2_mbox *mbox = dev->mbox;
int rc = -EINVAL;
req = otx2_mbox_alloc_msg_npc_mcam_alloc_and_write_entry(mbox);
if (intf == NPC_MCAM_RX) {
if (!drop && dev->vlan_info.def_rx_mcam_idx) {
req->priority = NPC_MCAM_HIGHER_PRIO;
req->ref_entry = dev->vlan_info.def_rx_mcam_idx;
} else if (drop && dev->vlan_info.qinq_mcam_idx) {
req->priority = NPC_MCAM_LOWER_PRIO;
req->ref_entry = dev->vlan_info.qinq_mcam_idx;
} else {
req->priority = NPC_MCAM_ANY_PRIO;
req->ref_entry = 0;
}
} else {
req->priority = NPC_MCAM_ANY_PRIO;
req->ref_entry = 0;
}
req->intf = intf;
req->enable_entry = 1;
memcpy(&req->entry_data, entry, sizeof(struct mcam_entry));
rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
if (rc)
return rc;
return rsp->entry;
}
static void
nix_vlan_update_mac(struct rte_eth_dev *eth_dev, int mcam_index,
int enable)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct vlan_mkex_info *mkex = &dev->vlan_info.mkex;
volatile uint8_t *key_data, *key_mask;
struct npc_mcam_read_entry_req *req;
struct npc_mcam_read_entry_rsp *rsp;
struct otx2_mbox *mbox = dev->mbox;
uint64_t mcam_data, mcam_mask;
struct mcam_entry entry;
uint8_t intf, mcam_ena;
int idx, rc = -EINVAL;
uint8_t *mac_addr;
memset(&entry, 0, sizeof(struct mcam_entry));
/* Read entry first */
req = otx2_mbox_alloc_msg_npc_mcam_read_entry(mbox);
req->entry = mcam_index;
rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
if (rc) {
otx2_err("Failed to read entry %d", mcam_index);
return;
}
entry = rsp->entry_data;
intf = rsp->intf;
mcam_ena = rsp->enable;
/* Update mcam address */
key_data = (volatile uint8_t *)entry.kw;
key_mask = (volatile uint8_t *)entry.kw_mask;
if (enable) {
mcam_mask = 0;
otx2_mbox_memcpy(key_mask + mkex->la_xtract.key_off,
&mcam_mask, mkex->la_xtract.len + 1);
} else {
mcam_data = 0ULL;
mac_addr = dev->mac_addr;
for (idx = RTE_ETHER_ADDR_LEN - 1; idx >= 0; idx--)
mcam_data |= ((uint64_t)*mac_addr++) << (8 * idx);
mcam_mask = BIT_ULL(48) - 1;
otx2_mbox_memcpy(key_data + mkex->la_xtract.key_off,
&mcam_data, mkex->la_xtract.len + 1);
otx2_mbox_memcpy(key_mask + mkex->la_xtract.key_off,
&mcam_mask, mkex->la_xtract.len + 1);
}
/* Write back the mcam entry */
rc = nix_vlan_mcam_write(eth_dev, mcam_index,
&entry, intf, mcam_ena);
if (rc) {
otx2_err("Failed to write entry %d", mcam_index);
return;
}
}
void
otx2_nix_vlan_update_promisc(struct rte_eth_dev *eth_dev, int enable)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct otx2_vlan_info *vlan = &dev->vlan_info;
struct vlan_entry *entry;
/* Already in required mode */
if (enable == vlan->promisc_on)
return;
/* Update default rx entry */
if (vlan->def_rx_mcam_idx)
nix_vlan_update_mac(eth_dev, vlan->def_rx_mcam_idx, enable);
/* Update all other rx filter entries */
TAILQ_FOREACH(entry, &vlan->fltr_tbl, next)
nix_vlan_update_mac(eth_dev, entry->mcam_idx, enable);
vlan->promisc_on = enable;
}
/* Configure mcam entry with required MCAM search rules */
static int
nix_vlan_mcam_config(struct rte_eth_dev *eth_dev,
uint16_t vlan_id, uint16_t flags)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct vlan_mkex_info *mkex = &dev->vlan_info.mkex;
volatile uint8_t *key_data, *key_mask;
uint64_t mcam_data, mcam_mask;
struct mcam_entry entry;
uint8_t *mac_addr;
int idx, kwi = 0;
memset(&entry, 0, sizeof(struct mcam_entry));
key_data = (volatile uint8_t *)entry.kw;
key_mask = (volatile uint8_t *)entry.kw_mask;
/* Channel base extracted to KW0[11:0] */
entry.kw[kwi] = dev->rx_chan_base;
entry.kw_mask[kwi] = BIT_ULL(12) - 1;
/* Adds vlan_id & LB CTAG flag to MCAM KW */
if (flags & VLAN_ID_MATCH) {
entry.kw[kwi] |= (NPC_LT_LB_CTAG | NPC_LT_LB_STAG_QINQ)
<< mkex->lb_lt_offset;
entry.kw_mask[kwi] |=
(0xF & ~(NPC_LT_LB_CTAG ^ NPC_LT_LB_STAG_QINQ))
<< mkex->lb_lt_offset;
mcam_data = (uint16_t)vlan_id;
mcam_mask = (BIT_ULL(16) - 1);
otx2_mbox_memcpy(key_data + mkex->lb_xtract.key_off,
&mcam_data, mkex->lb_xtract.len);
otx2_mbox_memcpy(key_mask + mkex->lb_xtract.key_off,
&mcam_mask, mkex->lb_xtract.len);
}
/* Adds LB STAG flag to MCAM KW */
if (flags & QINQ_F_MATCH) {
entry.kw[kwi] |= NPC_LT_LB_STAG_QINQ << mkex->lb_lt_offset;
entry.kw_mask[kwi] |= 0xFULL << mkex->lb_lt_offset;
}
/* Adds LB CTAG & LB STAG flags to MCAM KW */
if (flags & VTAG_F_MATCH) {
entry.kw[kwi] |= (NPC_LT_LB_CTAG | NPC_LT_LB_STAG_QINQ)
<< mkex->lb_lt_offset;
entry.kw_mask[kwi] |=
(0xF & ~(NPC_LT_LB_CTAG ^ NPC_LT_LB_STAG_QINQ))
<< mkex->lb_lt_offset;
}
/* Adds port MAC address to MCAM KW */
if (flags & MAC_ADDR_MATCH) {
mcam_data = 0ULL;
mac_addr = dev->mac_addr;
for (idx = RTE_ETHER_ADDR_LEN - 1; idx >= 0; idx--)
mcam_data |= ((uint64_t)*mac_addr++) << (8 * idx);
mcam_mask = BIT_ULL(48) - 1;
otx2_mbox_memcpy(key_data + mkex->la_xtract.key_off,
&mcam_data, mkex->la_xtract.len + 1);
otx2_mbox_memcpy(key_mask + mkex->la_xtract.key_off,
&mcam_mask, mkex->la_xtract.len + 1);
}
/* VLAN_DROP: for drop action for all vlan packets when filter is on.
* For QinQ, enable vtag action for both outer & inner tags
*/
if (flags & VLAN_DROP)
nix_set_rx_vlan_action(eth_dev, &entry, false, true);
else if (flags & QINQ_F_MATCH)
nix_set_rx_vlan_action(eth_dev, &entry, true, false);
else
nix_set_rx_vlan_action(eth_dev, &entry, false, false);
if (flags & DEF_F_ENTRY)
dev->vlan_info.def_rx_mcam_ent = entry;
return nix_vlan_mcam_alloc_and_write(eth_dev, &entry, NIX_INTF_RX,
flags & VLAN_DROP);
}
/* Installs/Removes/Modifies default rx entry */
static int
nix_vlan_handle_default_rx_entry(struct rte_eth_dev *eth_dev, bool strip,
bool filter, bool enable)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct otx2_vlan_info *vlan = &dev->vlan_info;
uint16_t flags = 0;
int mcam_idx, rc;
/* Use default mcam entry to either drop vlan traffic when
* vlan filter is on or strip vtag when strip is enabled.
* Allocate default entry which matches port mac address
* and vtag(ctag/stag) flags with drop action.
*/
if (!vlan->def_rx_mcam_idx) {
if (!eth_dev->data->promiscuous)
flags = MAC_ADDR_MATCH;
if (filter && enable)
flags |= VTAG_F_MATCH | VLAN_DROP;
else if (strip && enable)
flags |= VTAG_F_MATCH;
else
return 0;
flags |= DEF_F_ENTRY;
mcam_idx = nix_vlan_mcam_config(eth_dev, 0, flags);
if (mcam_idx < 0) {
otx2_err("Failed to config vlan mcam");
return -mcam_idx;
}
vlan->def_rx_mcam_idx = mcam_idx;
return 0;
}
/* Filter is already enabled, so packets would be dropped anyways. No
* processing needed for enabling strip wrt mcam entry.
*/
/* Filter disable request */
if (vlan->filter_on && filter && !enable) {
vlan->def_rx_mcam_ent.action &= ~((uint64_t)0xF);
/* Free default rx entry only when
* 1. strip is not on and
* 2. qinq entry is allocated before default entry.
*/
if (vlan->strip_on ||
(vlan->qinq_on && !vlan->qinq_before_def)) {
if (eth_dev->data->dev_conf.rxmode.mq_mode ==
ETH_MQ_RX_RSS)
vlan->def_rx_mcam_ent.action |=
NIX_RX_ACTIONOP_RSS;
else
vlan->def_rx_mcam_ent.action |=
NIX_RX_ACTIONOP_UCAST;
return nix_vlan_mcam_write(eth_dev,
vlan->def_rx_mcam_idx,
&vlan->def_rx_mcam_ent,
NIX_INTF_RX, 1);
} else {
rc = nix_vlan_mcam_free(dev, vlan->def_rx_mcam_idx);
if (rc)
return rc;
vlan->def_rx_mcam_idx = 0;
}
}
/* Filter enable request */
if (!vlan->filter_on && filter && enable) {
vlan->def_rx_mcam_ent.action &= ~((uint64_t)0xF);
vlan->def_rx_mcam_ent.action |= NIX_RX_ACTIONOP_DROP;
return nix_vlan_mcam_write(eth_dev, vlan->def_rx_mcam_idx,
&vlan->def_rx_mcam_ent, NIX_INTF_RX, 1);
}
/* Strip disable request */
if (vlan->strip_on && strip && !enable) {
if (!vlan->filter_on &&
!(vlan->qinq_on && !vlan->qinq_before_def)) {
rc = nix_vlan_mcam_free(dev, vlan->def_rx_mcam_idx);
if (rc)
return rc;
vlan->def_rx_mcam_idx = 0;
}
}
return 0;
}
/* Installs/Removes default tx entry */
static int
nix_vlan_handle_default_tx_entry(struct rte_eth_dev *eth_dev,
enum rte_vlan_type type, int vtag_index,
int enable)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct otx2_vlan_info *vlan = &dev->vlan_info;
struct mcam_entry entry;
uint16_t pf_func;
int rc;
if (!vlan->def_tx_mcam_idx && enable) {
memset(&entry, 0, sizeof(struct mcam_entry));
/* Only pf_func is matched, swap it's bytes */
pf_func = (dev->pf_func & 0xff) << 8;
pf_func |= (dev->pf_func >> 8) & 0xff;
/* PF Func extracted to KW1[47:32] */
entry.kw[0] = (uint64_t)pf_func << 32;
entry.kw_mask[0] = (BIT_ULL(16) - 1) << 32;
nix_set_tx_vlan_action(&entry, type, vtag_index);
vlan->def_tx_mcam_ent = entry;
return nix_vlan_mcam_alloc_and_write(eth_dev, &entry,
NIX_INTF_TX, 0);
}
if (vlan->def_tx_mcam_idx && !enable) {
rc = nix_vlan_mcam_free(dev, vlan->def_tx_mcam_idx);
if (rc)
return rc;
vlan->def_rx_mcam_idx = 0;
}
return 0;
}
/* Configure vlan stripping on or off */
static int
nix_vlan_hw_strip(struct rte_eth_dev *eth_dev, const uint8_t enable)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct otx2_mbox *mbox = dev->mbox;
struct nix_vtag_config *vtag_cfg;
int rc = -EINVAL;
rc = nix_vlan_handle_default_rx_entry(eth_dev, true, false, enable);
if (rc) {
otx2_err("Failed to config default rx entry");
return rc;
}
vtag_cfg = otx2_mbox_alloc_msg_nix_vtag_cfg(mbox);
/* cfg_type = 1 for rx vlan cfg */
vtag_cfg->cfg_type = VTAG_RX;
if (enable)
vtag_cfg->rx.strip_vtag = 1;
else
vtag_cfg->rx.strip_vtag = 0;
/* Always capture */
vtag_cfg->rx.capture_vtag = 1;
vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
/* Use rx vtag type index[0] for now */
vtag_cfg->rx.vtag_type = 0;
rc = otx2_mbox_process(mbox);
if (rc)
return rc;
dev->vlan_info.strip_on = enable;
return rc;
}
/* Configure vlan filtering on or off for all vlans if vlan_id == 0 */
static int
nix_vlan_hw_filter(struct rte_eth_dev *eth_dev, const uint8_t enable,
uint16_t vlan_id)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct otx2_vlan_info *vlan = &dev->vlan_info;
struct vlan_entry *entry;
int rc = -EINVAL;
if (!vlan_id && enable) {
rc = nix_vlan_handle_default_rx_entry(eth_dev, false, true,
enable);
if (rc) {
otx2_err("Failed to config vlan mcam");
return rc;
}
dev->vlan_info.filter_on = enable;
return 0;
}
/* Enable/disable existing vlan filter entries */
TAILQ_FOREACH(entry, &vlan->fltr_tbl, next) {
if (vlan_id) {
if (entry->vlan_id == vlan_id) {
rc = nix_vlan_mcam_enb_dis(dev,
entry->mcam_idx,
enable);
if (rc)
return rc;
}
} else {
rc = nix_vlan_mcam_enb_dis(dev, entry->mcam_idx,
enable);
if (rc)
return rc;
}
}
if (!vlan_id && !enable) {
rc = nix_vlan_handle_default_rx_entry(eth_dev, false, true,
enable);
if (rc) {
otx2_err("Failed to config vlan mcam");
return rc;
}
dev->vlan_info.filter_on = enable;
return 0;
}
return 0;
}
/* Enable/disable vlan filtering for the given vlan_id */
int
otx2_nix_vlan_filter_set(struct rte_eth_dev *eth_dev, uint16_t vlan_id,
int on)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct otx2_vlan_info *vlan = &dev->vlan_info;
struct vlan_entry *entry;
int entry_exists = 0;
int rc = -EINVAL;
int mcam_idx;
if (!vlan_id) {
otx2_err("Vlan Id can't be zero");
return rc;
}
if (!vlan->def_rx_mcam_idx) {
otx2_err("Vlan Filtering is disabled, enable it first");
return rc;
}
if (on) {
TAILQ_FOREACH(entry, &vlan->fltr_tbl, next) {
if (entry->vlan_id == vlan_id) {
/* Vlan entry already exists */
entry_exists = 1;
/* Mcam entry already allocated */
if (entry->mcam_idx) {
rc = nix_vlan_hw_filter(eth_dev, on,
vlan_id);
return rc;
}
break;
}
}
if (!entry_exists) {
entry = rte_zmalloc("otx2_nix_vlan_entry",
sizeof(struct vlan_entry), 0);
if (!entry) {
otx2_err("Failed to allocate memory");
return -ENOMEM;
}
}
/* Enables vlan_id & mac address based filtering */
if (eth_dev->data->promiscuous)
mcam_idx = nix_vlan_mcam_config(eth_dev, vlan_id,
VLAN_ID_MATCH);
else
mcam_idx = nix_vlan_mcam_config(eth_dev, vlan_id,
VLAN_ID_MATCH |
MAC_ADDR_MATCH);
if (mcam_idx < 0) {
otx2_err("Failed to config vlan mcam");
TAILQ_REMOVE(&vlan->fltr_tbl, entry, next);
rte_free(entry);
return mcam_idx;
}
entry->mcam_idx = mcam_idx;
if (!entry_exists) {
entry->vlan_id = vlan_id;
TAILQ_INSERT_HEAD(&vlan->fltr_tbl, entry, next);
}
} else {
TAILQ_FOREACH(entry, &vlan->fltr_tbl, next) {
if (entry->vlan_id == vlan_id) {
rc = nix_vlan_mcam_free(dev, entry->mcam_idx);
if (rc)
return rc;
TAILQ_REMOVE(&vlan->fltr_tbl, entry, next);
rte_free(entry);
break;
}
}
}
return 0;
}
/* Configure double vlan(qinq) on or off */
static int
otx2_nix_config_double_vlan(struct rte_eth_dev *eth_dev,
const uint8_t enable)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct otx2_vlan_info *vlan_info;
int mcam_idx;
int rc;
vlan_info = &dev->vlan_info;
if (!enable) {
if (!vlan_info->qinq_mcam_idx)
return 0;
rc = nix_vlan_mcam_free(dev, vlan_info->qinq_mcam_idx);
if (rc)
return rc;
vlan_info->qinq_mcam_idx = 0;
dev->vlan_info.qinq_on = 0;
vlan_info->qinq_before_def = 0;
return 0;
}
if (eth_dev->data->promiscuous)
mcam_idx = nix_vlan_mcam_config(eth_dev, 0, QINQ_F_MATCH);
else
mcam_idx = nix_vlan_mcam_config(eth_dev, 0,
QINQ_F_MATCH | MAC_ADDR_MATCH);
if (mcam_idx < 0)
return mcam_idx;
if (!vlan_info->def_rx_mcam_idx)
vlan_info->qinq_before_def = 1;
vlan_info->qinq_mcam_idx = mcam_idx;
dev->vlan_info.qinq_on = 1;
return 0;
}
int
otx2_nix_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
uint64_t offloads = dev->rx_offloads;
struct rte_eth_rxmode *rxmode;
int rc = 0;
rxmode = &eth_dev->data->dev_conf.rxmode;
if (mask & ETH_VLAN_STRIP_MASK) {
if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP) {
offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
rc = nix_vlan_hw_strip(eth_dev, true);
} else {
offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
rc = nix_vlan_hw_strip(eth_dev, false);
}
if (rc)
goto done;
}
if (mask & ETH_VLAN_FILTER_MASK) {
if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_FILTER) {
offloads |= DEV_RX_OFFLOAD_VLAN_FILTER;
rc = nix_vlan_hw_filter(eth_dev, true, 0);
} else {
offloads &= ~DEV_RX_OFFLOAD_VLAN_FILTER;
rc = nix_vlan_hw_filter(eth_dev, false, 0);
}
if (rc)
goto done;
}
if (rxmode->offloads & DEV_RX_OFFLOAD_QINQ_STRIP) {
if (!dev->vlan_info.qinq_on) {
offloads |= DEV_RX_OFFLOAD_QINQ_STRIP;
rc = otx2_nix_config_double_vlan(eth_dev, true);
if (rc)
goto done;
}
} else {
if (dev->vlan_info.qinq_on) {
offloads &= ~DEV_RX_OFFLOAD_QINQ_STRIP;
rc = otx2_nix_config_double_vlan(eth_dev, false);
if (rc)
goto done;
}
}
if (offloads & (DEV_RX_OFFLOAD_VLAN_STRIP |
DEV_RX_OFFLOAD_QINQ_STRIP)) {
dev->rx_offloads |= offloads;
dev->rx_offload_flags |= NIX_RX_OFFLOAD_VLAN_STRIP_F;
otx2_eth_set_rx_function(eth_dev);
}
done:
return rc;
}
int
otx2_nix_vlan_tpid_set(struct rte_eth_dev *eth_dev,
enum rte_vlan_type type, uint16_t tpid)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct nix_set_vlan_tpid *tpid_cfg;
struct otx2_mbox *mbox = dev->mbox;
int rc;
tpid_cfg = otx2_mbox_alloc_msg_nix_set_vlan_tpid(mbox);
tpid_cfg->tpid = tpid;
if (type == ETH_VLAN_TYPE_OUTER)
tpid_cfg->vlan_type = NIX_VLAN_TYPE_OUTER;
else
tpid_cfg->vlan_type = NIX_VLAN_TYPE_INNER;
rc = otx2_mbox_process(mbox);
if (rc)
return rc;
if (type == ETH_VLAN_TYPE_OUTER)
dev->vlan_info.outer_vlan_tpid = tpid;
else
dev->vlan_info.inner_vlan_tpid = tpid;
return 0;
}
int
otx2_nix_vlan_pvid_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
{
struct otx2_eth_dev *otx2_dev = otx2_eth_pmd_priv(dev);
struct otx2_mbox *mbox = otx2_dev->mbox;
struct nix_vtag_config *vtag_cfg;
struct nix_vtag_config_rsp *rsp;
struct otx2_vlan_info *vlan;
int rc, rc1, vtag_index = 0;
if (vlan_id == 0) {
otx2_err("vlan id can't be zero");
return -EINVAL;
}
vlan = &otx2_dev->vlan_info;
if (on && vlan->pvid_insert_on && vlan->pvid == vlan_id) {
otx2_err("pvid %d is already enabled", vlan_id);
return -EINVAL;
}
if (on && vlan->pvid_insert_on && vlan->pvid != vlan_id) {
otx2_err("another pvid is enabled, disable that first");
return -EINVAL;
}
/* No pvid active */
if (!on && !vlan->pvid_insert_on)
return 0;
/* Given pvid already disabled */
if (!on && vlan->pvid != vlan_id)
return 0;
vtag_cfg = otx2_mbox_alloc_msg_nix_vtag_cfg(mbox);
if (on) {
vtag_cfg->cfg_type = VTAG_TX;
vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
if (vlan->outer_vlan_tpid)
vtag_cfg->tx.vtag0 = ((uint32_t)vlan->outer_vlan_tpid
<< 16) | vlan_id;
else
vtag_cfg->tx.vtag0 =
((RTE_ETHER_TYPE_VLAN << 16) | vlan_id);
vtag_cfg->tx.cfg_vtag0 = 1;
} else {
vtag_cfg->cfg_type = VTAG_TX;
vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
vtag_cfg->tx.vtag0_idx = vlan->outer_vlan_idx;
vtag_cfg->tx.free_vtag0 = 1;
}
rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
if (rc)
return rc;
if (on) {
vtag_index = rsp->vtag0_idx;
} else {
vlan->pvid = 0;
vlan->pvid_insert_on = 0;
vlan->outer_vlan_idx = 0;
}
rc = nix_vlan_handle_default_tx_entry(dev, ETH_VLAN_TYPE_OUTER,
vtag_index, on);
if (rc < 0) {
printf("Default tx entry failed with rc %d\n", rc);
vtag_cfg->tx.vtag0_idx = vtag_index;
vtag_cfg->tx.free_vtag0 = 1;
vtag_cfg->tx.cfg_vtag0 = 0;
rc1 = otx2_mbox_process_msg(mbox, (void *)&rsp);
if (rc1)
otx2_err("Vtag free failed");
return rc;
}
if (on) {
vlan->pvid = vlan_id;
vlan->pvid_insert_on = 1;
vlan->outer_vlan_idx = vtag_index;
}
return 0;
}
void otx2_nix_vlan_strip_queue_set(__rte_unused struct rte_eth_dev *dev,
__rte_unused uint16_t queue,
__rte_unused int on)
{
otx2_err("Not Supported");
}
static int
nix_vlan_rx_mkex_offset(uint64_t mask)
{
int nib_count = 0;
while (mask) {
nib_count += mask & 1;
mask >>= 1;
}
return nib_count * 4;
}
static int
nix_vlan_get_mkex_info(struct otx2_eth_dev *dev)
{
struct vlan_mkex_info *mkex = &dev->vlan_info.mkex;
struct otx2_npc_flow_info *npc = &dev->npc_flow;
struct npc_xtract_info *x_info = NULL;
uint64_t rx_keyx;
otx2_dxcfg_t *p;
int rc = -EINVAL;
if (npc == NULL) {
otx2_err("Missing npc mkex configuration");
return rc;
}
#define NPC_KEX_CHAN_NIBBLE_ENA 0x7ULL
#define NPC_KEX_LB_LTYPE_NIBBLE_ENA 0x1000ULL
#define NPC_KEX_LB_LTYPE_NIBBLE_MASK 0xFFFULL
rx_keyx = npc->keyx_supp_nmask[NPC_MCAM_RX];
if ((rx_keyx & NPC_KEX_CHAN_NIBBLE_ENA) != NPC_KEX_CHAN_NIBBLE_ENA)
return rc;
if ((rx_keyx & NPC_KEX_LB_LTYPE_NIBBLE_ENA) !=
NPC_KEX_LB_LTYPE_NIBBLE_ENA)
return rc;
mkex->lb_lt_offset =
nix_vlan_rx_mkex_offset(rx_keyx & NPC_KEX_LB_LTYPE_NIBBLE_MASK);
p = &npc->prx_dxcfg;
x_info = &(*p)[NPC_MCAM_RX][NPC_LID_LA][NPC_LT_LA_ETHER].xtract[0];
memcpy(&mkex->la_xtract, x_info, sizeof(struct npc_xtract_info));
x_info = &(*p)[NPC_MCAM_RX][NPC_LID_LB][NPC_LT_LB_CTAG].xtract[0];
memcpy(&mkex->lb_xtract, x_info, sizeof(struct npc_xtract_info));
return 0;
}
static void nix_vlan_reinstall_vlan_filters(struct rte_eth_dev *eth_dev)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct vlan_entry *entry;
int rc;
/* VLAN filters can't be set without setting filtern on */
rc = nix_vlan_handle_default_rx_entry(eth_dev, false, true, true);
if (rc) {
otx2_err("Failed to reinstall vlan filters");
return;
}
TAILQ_FOREACH(entry, &dev->vlan_info.fltr_tbl, next) {
rc = otx2_nix_vlan_filter_set(eth_dev, entry->vlan_id, true);
if (rc)
otx2_err("Failed to reinstall filter for vlan:%d",
entry->vlan_id);
}
}
int
otx2_nix_vlan_offload_init(struct rte_eth_dev *eth_dev)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
int rc, mask;
/* Port initialized for first time or restarted */
if (!dev->configured) {
rc = nix_vlan_get_mkex_info(dev);
if (rc) {
otx2_err("Failed to get vlan mkex info rc=%d", rc);
return rc;
}
TAILQ_INIT(&dev->vlan_info.fltr_tbl);
} else {
/* Reinstall all mcam entries now if filter offload is set */
if (eth_dev->data->dev_conf.rxmode.offloads &
DEV_RX_OFFLOAD_VLAN_FILTER)
nix_vlan_reinstall_vlan_filters(eth_dev);
}
mask =
ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK;
rc = otx2_nix_vlan_offload_set(eth_dev, mask);
if (rc) {
otx2_err("Failed to set vlan offload rc=%d", rc);
return rc;
}
return 0;
}
int
otx2_nix_vlan_fini(struct rte_eth_dev *eth_dev)
{
struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
struct otx2_vlan_info *vlan = &dev->vlan_info;
struct vlan_entry *entry;
int rc;
TAILQ_FOREACH(entry, &vlan->fltr_tbl, next) {
if (!dev->configured) {
TAILQ_REMOVE(&vlan->fltr_tbl, entry, next);
rte_free(entry);
} else {
/* MCAM entries freed by flow_fini & lf_free on
* port stop.
*/
entry->mcam_idx = 0;
}
}
if (!dev->configured) {
if (vlan->def_rx_mcam_idx) {
rc = nix_vlan_mcam_free(dev, vlan->def_rx_mcam_idx);
if (rc)
return rc;
}
}
otx2_nix_config_double_vlan(eth_dev, false);
vlan->def_rx_mcam_idx = 0;
return 0;
}