by Ratheesh Kannoth

[permalink] [raw]

Subject: [PATCH 09/12] 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.

Change-Id: I4b1ed52f8d55dce1233760b2e78fd1763a312821
Signed-off-by: Ratheesh Kannoth <[email protected]>
---
.../marvell/octeontx2/af/rvu_npc_hash.c | 351 +++++++++++++++++-
.../marvell/octeontx2/af/rvu_npc_hash.h | 23 +-
2 files changed, 363 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c
index 55f14d7aab0b..82b335b06430 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c
@@ -1150,14 +1150,17 @@ 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;
}
@@ -1174,7 +1177,7 @@ static u16 __rvu_npc_exact_cmd_rules_cnt_update(struct rvu *rvu, int drop_mcam_i
* Deletes entry from linked lists and free up slot in HW MEM or CAM
* table.
*/
-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;
@@ -1245,9 +1248,9 @@ int rvu_npc_exact_del_table_entry_by_id(struct rvu *rvu, u32 seq_id)
* Creates a new exact match table entry in either CAM or
* MEM table.
*/
-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)
+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;
@@ -1317,8 +1320,8 @@ int rvu_npc_exact_add_table_entry(struct rvu *rvu, u8 cgx_id, u8 lmac_id, u8 *ma
* Updates MAC address of an entry. If entry is in MEM table, new
* hash value may not match with old one.
*/
-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)
+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;
@@ -1348,7 +1351,7 @@ int rvu_npc_exact_update_table_entry(struct rvu *rvu, u8 cgx_id, u8 lmac_id,
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);
@@ -1378,6 +1381,336 @@ int rvu_npc_exact_update_table_entry(struct rvu *rvu, u8 cgx_id, u8 lmac_id,
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.
+ */
+
+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.
+ */
+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.
+ */
+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.
+ */
+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.
+ */
+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.
+ */
+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.
+ */
+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.
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h
index c94566772981..cf775d504d83 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h
@@ -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 */
--
2.25.1

Subject: [PATCH 00/12] *** Exact Match Table and Field hash ***

Subject: [PATCH 07/12] octeontx2-af: Debugsfs support for exact match.

Subject: [PATCH 11/12] octeontx2-pf: Add support for exact match table.

Subject: [PATCH 01/12] octeontx2-af: Support to hash reduce of actual field into MCAM key

Subject: [PATCH 10/12] octeontx2-af: Invoke exact match functions if supported

Subject: [PATCH 05/12] octeontx2-af: FLR handler for exact match table.

Subject: [PATCH 09/12] octeontx2-af: Wrapper functions for mac addr add/del/update/reset

Subject: [PATCH 00/12] * Exact Match Table and Field hash *