octeontx2-af: Wrapper functions for MAC addr add/del/update/reset

These functions are wrappers for mac add/addr/del/update in
exact match table. These will be invoked from mbox handler routines
if exact matct table is supported and enabled.

Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ratheesh Kannoth 2022-07-08 10:11:48 +05:30 committed by Jakub Kicinski
parent 292822e961
commit 2dba9459d2
2 changed files with 370 additions and 12 deletions

View file

@ -1168,14 +1168,17 @@ static u16 __rvu_npc_exact_cmd_rules_cnt_update(struct rvu *rvu, int drop_mcam_i
*enable_or_disable_cam = false;
if (promisc)
goto done;
/* If all rules are deleted and not already in promisc mode; disable cam */
if (!*cnt && !promisc) {
if (!*cnt && val < 0) {
*enable_or_disable_cam = true;
goto done;
}
/* If rule got added and not already in promisc mode; enable cam */
if (!old_cnt && !promisc) {
if (!old_cnt && val > 0) {
*enable_or_disable_cam = true;
goto done;
}
@ -1193,7 +1196,7 @@ static u16 __rvu_npc_exact_cmd_rules_cnt_update(struct rvu *rvu, int drop_mcam_i
* table.
* Return: 0 upon success.
*/
int rvu_npc_exact_del_table_entry_by_id(struct rvu *rvu, u32 seq_id)
static int rvu_npc_exact_del_table_entry_by_id(struct rvu *rvu, u32 seq_id)
{
struct npc_exact_table_entry *entry = NULL;
struct npc_exact_table *table;
@ -1265,9 +1268,9 @@ int rvu_npc_exact_del_table_entry_by_id(struct rvu *rvu, u32 seq_id)
* MEM table.
* Return: 0 upon success.
*/
static int __maybe_unused rvu_npc_exact_add_table_entry(struct rvu *rvu, u8 cgx_id, u8 lmac_id,
u8 *mac, u16 chan, u8 ctype, u32 *seq_id,
bool cmd, u32 mcam_idx, u16 pcifunc)
static int rvu_npc_exact_add_table_entry(struct rvu *rvu, u8 cgx_id, u8 lmac_id, u8 *mac,
u16 chan, u8 ctype, u32 *seq_id, bool cmd,
u32 mcam_idx, u16 pcifunc)
{
int blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0);
enum npc_exact_opc_type opc_type;
@ -1335,9 +1338,8 @@ static int __maybe_unused rvu_npc_exact_add_table_entry(struct rvu *rvu, u8 cgx_
* hash value may not match with old one.
* Return: 0 upon success.
*/
static int __maybe_unused rvu_npc_exact_update_table_entry(struct rvu *rvu, u8 cgx_id,
u8 lmac_id, u8 *old_mac,
u8 *new_mac, u32 *seq_id)
static int rvu_npc_exact_update_table_entry(struct rvu *rvu, u8 cgx_id, u8 lmac_id,
u8 *old_mac, u8 *new_mac, u32 *seq_id)
{
int blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0);
struct npc_exact_table_entry *entry;
@ -1367,7 +1369,7 @@ static int __maybe_unused rvu_npc_exact_update_table_entry(struct rvu *rvu, u8 c
new_mac, table->mem_table.mask,
table->mem_table.depth);
if (hash_index != entry->index) {
dev_err(rvu->dev,
dev_dbg(rvu->dev,
"%s: Update failed due to index mismatch(new=0x%x, old=%x)\n",
__func__, hash_index, entry->index);
mutex_unlock(&table->lock);
@ -1397,6 +1399,343 @@ static int __maybe_unused rvu_npc_exact_update_table_entry(struct rvu *rvu, u8 c
return 0;
}
/**
* rvu_npc_exact_promisc_disable - Disable promiscuous mode.
* @rvu: resource virtualization unit.
* @pcifunc: pcifunc
*
* Drop rule is against each PF. We dont support DMAC filter for
* VF.
* Return: 0 upon success
*/
int rvu_npc_exact_promisc_disable(struct rvu *rvu, u16 pcifunc)
{
struct npc_exact_table *table;
int pf = rvu_get_pf(pcifunc);
u8 cgx_id, lmac_id;
u32 drop_mcam_idx;
bool *promisc;
u32 cnt;
table = rvu->hw->table;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
rvu_npc_exact_get_drop_rule_info(rvu, NIX_INTF_TYPE_CGX, cgx_id, lmac_id,
&drop_mcam_idx, NULL, NULL, NULL);
mutex_lock(&table->lock);
promisc = &table->promisc_mode[drop_mcam_idx];
if (!*promisc) {
mutex_unlock(&table->lock);
dev_dbg(rvu->dev, "%s: Err Already promisc mode disabled (cgx=%d lmac=%d)\n",
__func__, cgx_id, lmac_id);
return LMAC_AF_ERR_INVALID_PARAM;
}
*promisc = false;
cnt = __rvu_npc_exact_cmd_rules_cnt_update(rvu, drop_mcam_idx, 0, NULL);
mutex_unlock(&table->lock);
/* If no dmac filter entries configured, disable drop rule */
if (!cnt)
rvu_npc_enable_mcam_by_entry_index(rvu, drop_mcam_idx, NIX_INTF_RX, false);
else
rvu_npc_enable_mcam_by_entry_index(rvu, drop_mcam_idx, NIX_INTF_RX, !*promisc);
dev_dbg(rvu->dev, "%s: disabled promisc mode (cgx=%d lmac=%d, cnt=%d)\n",
__func__, cgx_id, lmac_id, cnt);
return 0;
}
/**
* rvu_npc_exact_promisc_enable - Enable promiscuous mode.
* @rvu: resource virtualization unit.
* @pcifunc: pcifunc.
* Return: 0 upon success
*/
int rvu_npc_exact_promisc_enable(struct rvu *rvu, u16 pcifunc)
{
struct npc_exact_table *table;
int pf = rvu_get_pf(pcifunc);
u8 cgx_id, lmac_id;
u32 drop_mcam_idx;
bool *promisc;
u32 cnt;
table = rvu->hw->table;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
rvu_npc_exact_get_drop_rule_info(rvu, NIX_INTF_TYPE_CGX, cgx_id, lmac_id,
&drop_mcam_idx, NULL, NULL, NULL);
mutex_lock(&table->lock);
promisc = &table->promisc_mode[drop_mcam_idx];
if (*promisc) {
mutex_unlock(&table->lock);
dev_dbg(rvu->dev, "%s: Already in promisc mode (cgx=%d lmac=%d)\n",
__func__, cgx_id, lmac_id);
return LMAC_AF_ERR_INVALID_PARAM;
}
*promisc = true;
cnt = __rvu_npc_exact_cmd_rules_cnt_update(rvu, drop_mcam_idx, 0, NULL);
mutex_unlock(&table->lock);
/* If no dmac filter entries configured, disable drop rule */
if (!cnt)
rvu_npc_enable_mcam_by_entry_index(rvu, drop_mcam_idx, NIX_INTF_RX, false);
else
rvu_npc_enable_mcam_by_entry_index(rvu, drop_mcam_idx, NIX_INTF_RX, !*promisc);
dev_dbg(rvu->dev, "%s: Enabled promisc mode (cgx=%d lmac=%d cnt=%d)\n",
__func__, cgx_id, lmac_id, cnt);
return 0;
}
/**
* rvu_npc_exact_mac_addr_reset - Delete PF mac address.
* @rvu: resource virtualization unit.
* @req: Reset request
* @rsp: Reset response.
* Return: 0 upon success
*/
int rvu_npc_exact_mac_addr_reset(struct rvu *rvu, struct cgx_mac_addr_reset_req *req,
struct msg_rsp *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
u32 seq_id = req->index;
struct rvu_pfvf *pfvf;
u8 cgx_id, lmac_id;
int rc;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc);
rc = rvu_npc_exact_del_table_entry_by_id(rvu, seq_id);
if (rc) {
/* TODO: how to handle this error case ? */
dev_err(rvu->dev, "%s MAC (%pM) del PF=%d failed\n", __func__, pfvf->mac_addr, pf);
return 0;
}
dev_dbg(rvu->dev, "%s MAC (%pM) del PF=%d success (seq_id=%u)\n",
__func__, pfvf->mac_addr, pf, seq_id);
return 0;
}
/**
* rvu_npc_exact_mac_addr_update - Update mac address field with new value.
* @rvu: resource virtualization unit.
* @req: Update request.
* @rsp: Update response.
* Return: 0 upon success
*/
int rvu_npc_exact_mac_addr_update(struct rvu *rvu,
struct cgx_mac_addr_update_req *req,
struct cgx_mac_addr_update_rsp *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
struct npc_exact_table_entry *entry;
struct npc_exact_table *table;
struct rvu_pfvf *pfvf;
u32 seq_id, mcam_idx;
u8 old_mac[ETH_ALEN];
u8 cgx_id, lmac_id;
int rc;
if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
return LMAC_AF_ERR_PERM_DENIED;
dev_dbg(rvu->dev, "%s: Update request for seq_id=%d, mac=%pM\n",
__func__, req->index, req->mac_addr);
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc);
table = rvu->hw->table;
mutex_lock(&table->lock);
/* Lookup for entry which needs to be updated */
entry = __rvu_npc_exact_find_entry_by_seq_id(rvu, req->index);
if (!entry) {
dev_err(rvu->dev, "%s: failed to find entry for id=0x%x\n", __func__, req->index);
mutex_unlock(&table->lock);
return LMAC_AF_ERR_EXACT_MATCH_TBL_LOOK_UP_FAILED;
}
ether_addr_copy(old_mac, entry->mac);
seq_id = entry->seq_id;
mcam_idx = entry->mcam_idx;
mutex_unlock(&table->lock);
rc = rvu_npc_exact_update_table_entry(rvu, cgx_id, lmac_id, old_mac,
req->mac_addr, &seq_id);
if (!rc) {
rsp->index = seq_id;
dev_dbg(rvu->dev, "%s mac:%pM (pfvf:%pM default:%pM) update to PF=%d success\n",
__func__, req->mac_addr, pfvf->mac_addr, pfvf->default_mac, pf);
ether_addr_copy(pfvf->mac_addr, req->mac_addr);
return 0;
}
/* Try deleting and adding it again */
rc = rvu_npc_exact_del_table_entry_by_id(rvu, req->index);
if (rc) {
/* This could be a new entry */
dev_dbg(rvu->dev, "%s MAC (%pM) del PF=%d failed\n", __func__,
pfvf->mac_addr, pf);
}
rc = rvu_npc_exact_add_table_entry(rvu, cgx_id, lmac_id, req->mac_addr,
pfvf->rx_chan_base, 0, &seq_id, true,
mcam_idx, req->hdr.pcifunc);
if (rc) {
dev_err(rvu->dev, "%s MAC (%pM) add PF=%d failed\n", __func__,
req->mac_addr, pf);
return LMAC_AF_ERR_EXACT_MATCH_TBL_ADD_FAILED;
}
rsp->index = seq_id;
dev_dbg(rvu->dev,
"%s MAC (new:%pM, old=%pM default:%pM) del and add to PF=%d success (seq_id=%u)\n",
__func__, req->mac_addr, pfvf->mac_addr, pfvf->default_mac, pf, seq_id);
ether_addr_copy(pfvf->mac_addr, req->mac_addr);
return 0;
}
/**
* rvu_npc_exact_mac_addr_add - Adds MAC address to exact match table.
* @rvu: resource virtualization unit.
* @req: Add request.
* @rsp: Add response.
* Return: 0 upon success
*/
int rvu_npc_exact_mac_addr_add(struct rvu *rvu,
struct cgx_mac_addr_add_req *req,
struct cgx_mac_addr_add_rsp *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
struct rvu_pfvf *pfvf;
u8 cgx_id, lmac_id;
int rc = 0;
u32 seq_id;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc);
rc = rvu_npc_exact_add_table_entry(rvu, cgx_id, lmac_id, req->mac_addr,
pfvf->rx_chan_base, 0, &seq_id,
true, -1, req->hdr.pcifunc);
if (!rc) {
rsp->index = seq_id;
dev_dbg(rvu->dev, "%s MAC (%pM) add to PF=%d success (seq_id=%u)\n",
__func__, req->mac_addr, pf, seq_id);
return 0;
}
dev_err(rvu->dev, "%s MAC (%pM) add to PF=%d failed\n", __func__,
req->mac_addr, pf);
return LMAC_AF_ERR_EXACT_MATCH_TBL_ADD_FAILED;
}
/**
* rvu_npc_exact_mac_addr_del - Delete DMAC filter
* @rvu: resource virtualization unit.
* @req: Delete request.
* @rsp: Delete response.
* Return: 0 upon success
*/
int rvu_npc_exact_mac_addr_del(struct rvu *rvu,
struct cgx_mac_addr_del_req *req,
struct msg_rsp *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
int rc;
rc = rvu_npc_exact_del_table_entry_by_id(rvu, req->index);
if (!rc) {
dev_dbg(rvu->dev, "%s del to PF=%d success (seq_id=%u)\n",
__func__, pf, req->index);
return 0;
}
dev_err(rvu->dev, "%s del to PF=%d failed (seq_id=%u)\n",
__func__, pf, req->index);
return LMAC_AF_ERR_EXACT_MATCH_TBL_DEL_FAILED;
}
/**
* rvu_npc_exact_mac_addr_set - Add PF mac address to dmac filter.
* @rvu: resource virtualization unit.
* @req: Set request.
* @rsp: Set response.
* Return: 0 upon success
*/
int rvu_npc_exact_mac_addr_set(struct rvu *rvu, struct cgx_mac_addr_set_or_get *req,
struct cgx_mac_addr_set_or_get *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
u32 seq_id = req->index;
struct rvu_pfvf *pfvf;
u8 cgx_id, lmac_id;
u32 mcam_idx = -1;
int rc, nixlf;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
pfvf = &rvu->pf[pf];
/* If table does not have an entry; both update entry and del table entry API
* below fails. Those are not failure conditions.
*/
rc = rvu_npc_exact_update_table_entry(rvu, cgx_id, lmac_id, pfvf->mac_addr,
req->mac_addr, &seq_id);
if (!rc) {
rsp->index = seq_id;
ether_addr_copy(pfvf->mac_addr, req->mac_addr);
ether_addr_copy(rsp->mac_addr, req->mac_addr);
dev_dbg(rvu->dev, "%s MAC (%pM) update to PF=%d success\n",
__func__, req->mac_addr, pf);
return 0;
}
/* Try deleting and adding it again */
rc = rvu_npc_exact_del_table_entry_by_id(rvu, req->index);
if (rc) {
dev_dbg(rvu->dev, "%s MAC (%pM) del PF=%d failed\n",
__func__, pfvf->mac_addr, pf);
}
/* find mcam entry if exist */
rc = nix_get_nixlf(rvu, req->hdr.pcifunc, &nixlf, NULL);
if (!rc) {
mcam_idx = npc_get_nixlf_mcam_index(&rvu->hw->mcam, req->hdr.pcifunc,
nixlf, NIXLF_UCAST_ENTRY);
}
rc = rvu_npc_exact_add_table_entry(rvu, cgx_id, lmac_id, req->mac_addr,
pfvf->rx_chan_base, 0, &seq_id,
true, mcam_idx, req->hdr.pcifunc);
if (rc) {
dev_err(rvu->dev, "%s MAC (%pM) add PF=%d failed\n",
__func__, req->mac_addr, pf);
return LMAC_AF_ERR_EXACT_MATCH_TBL_ADD_FAILED;
}
rsp->index = seq_id;
ether_addr_copy(rsp->mac_addr, req->mac_addr);
ether_addr_copy(pfvf->mac_addr, req->mac_addr);
dev_dbg(rvu->dev,
"%s MAC (%pM) del and add to PF=%d success (seq_id=%u)\n",
__func__, req->mac_addr, pf, seq_id);
return 0;
}
/**
* rvu_npc_exact_can_disable_feature - Check if feature can be disabled.
* @rvu: resource virtualization unit.

View file

@ -202,13 +202,32 @@ struct npc_exact_table {
};
bool rvu_npc_exact_has_match_table(struct rvu *rvu);
int rvu_npc_exact_del_table_entry_by_id(struct rvu *rvu, u32 seq_id);
u32 rvu_npc_exact_get_max_entries(struct rvu *rvu);
int rvu_npc_exact_init(struct rvu *rvu);
int rvu_npc_exact_mac_addr_reset(struct rvu *rvu, struct cgx_mac_addr_reset_req *req,
struct msg_rsp *rsp);
int rvu_npc_exact_mac_addr_update(struct rvu *rvu,
struct cgx_mac_addr_update_req *req,
struct cgx_mac_addr_update_rsp *rsp);
int rvu_npc_exact_mac_addr_add(struct rvu *rvu,
struct cgx_mac_addr_add_req *req,
struct cgx_mac_addr_add_rsp *rsp);
int rvu_npc_exact_mac_addr_del(struct rvu *rvu,
struct cgx_mac_addr_del_req *req,
struct msg_rsp *rsp);
int rvu_npc_exact_mac_addr_set(struct rvu *rvu, struct cgx_mac_addr_set_or_get *req,
struct cgx_mac_addr_set_or_get *rsp);
void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc);
bool rvu_npc_exact_can_disable_feature(struct rvu *rvu);
void rvu_npc_exact_disable_feature(struct rvu *rvu);
void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc);
u16 rvu_npc_exact_drop_rule_to_pcifunc(struct rvu *rvu, u32 drop_rule_idx);
int rvu_npc_exact_promisc_disable(struct rvu *rvu, u16 pcifunc);
int rvu_npc_exact_promisc_enable(struct rvu *rvu, u16 pcifunc);
#endif /* RVU_NPC_HASH_H */