diff mbox series

[net-next,4/8] octeontx2-af: cn10k: mcs: Install a default TCAM for normal traffic

Message ID 1664199421-28858-5-git-send-email-sbhatta@marvell.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series Introduce macsec hardware offload for cn10k platform | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 3 maintainers not CCed: lcherian@marvell.com jerinj@marvell.com hkelam@marvell.com
netdev/build_clang success Errors and warnings before: 3 this patch: 3
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 8 this patch: 8
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 94 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Subbaraya Sundeep Sept. 26, 2022, 1:36 p.m. UTC 
From: Geetha sowjanya <gakula@marvell.com>

Out of all the TCAM entries, reserve last TX and RX TCAM flow
entry(low priority) so that normal traffic can be sent out and
received. The traffic which needs macsec processing hits the
high priority TCAM flows. Also install a FLR handler to free
the allocated resources for PF/VF.

Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
---
 drivers/net/ethernet/marvell/octeontx2/af/mcs.c    | 45 ++++++++++++++++++++++
 .../net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c | 23 +++++++++++
 drivers/net/ethernet/marvell/octeontx2/af/rvu.h    |  1 +
 3 files changed, 69 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mcs.c b/drivers/net/ethernet/marvell/octeontx2/af/mcs.c
index 66d5038..7c82a25 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mcs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mcs.c
@@ -181,6 +181,51 @@  void mcs_flowid_entry_write(struct mcs *mcs, u64 *data, u64 *mask, int flow_id,
 	}
 }
 
+int mcs_install_flowid_bypass_entry(struct mcs *mcs)
+{
+	int flow_id, secy_id, reg_id;
+	struct secy_mem_map map;
+	u64 reg, plcy = 0;
+
+	/* Flow entry */
+	flow_id = mcs->hw->tcam_entries - MCS_RSRC_RSVD_CNT;
+	for (reg_id = 0; reg_id < 4; reg_id++) {
+		reg = MCSX_CPM_RX_SLAVE_FLOWID_TCAM_MASKX(reg_id, flow_id);
+		mcs_reg_write(mcs, reg, GENMASK_ULL(63, 0));
+	}
+	for (reg_id = 0; reg_id < 4; reg_id++) {
+		reg = MCSX_CPM_TX_SLAVE_FLOWID_TCAM_MASKX(reg_id, flow_id);
+		mcs_reg_write(mcs, reg, GENMASK_ULL(63, 0));
+	}
+	/* secy */
+	secy_id = mcs->hw->secy_entries - MCS_RSRC_RSVD_CNT;
+
+	/* Set validate frames to NULL and enable control port */
+	plcy = 0x7ull;
+	if (mcs->hw->mcs_blks > 1)
+		plcy = BIT_ULL(0) | 0x3ull << 4;
+	mcs_secy_plcy_write(mcs, plcy, secy_id, MCS_RX);
+
+	/* Enable control port and set mtu to max */
+	plcy = BIT_ULL(0) | GENMASK_ULL(43, 28);
+	if (mcs->hw->mcs_blks > 1)
+		plcy = BIT_ULL(0) | GENMASK_ULL(63, 48);
+	mcs_secy_plcy_write(mcs, plcy, secy_id, MCS_TX);
+
+	/* Map flowid to secy */
+	map.secy = secy_id;
+	map.ctrl_pkt = 0;
+	map.flow_id = flow_id;
+	mcs->mcs_ops->mcs_flowid_secy_map(mcs, &map, MCS_RX);
+	map.sc = secy_id;
+	mcs->mcs_ops->mcs_flowid_secy_map(mcs, &map, MCS_TX);
+
+	/* Enable Flowid entry */
+	mcs_ena_dis_flowid_entry(mcs, flow_id, MCS_RX, true);
+	mcs_ena_dis_flowid_entry(mcs, flow_id, MCS_TX, true);
+	return 0;
+}
+
 void mcs_clear_secy_plcy(struct mcs *mcs, int secy_id, int dir)
 {
 	struct mcs_rsrc_map *map;
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c b/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c
index 3c307e7..8a7d455 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c
@@ -133,6 +133,27 @@  int rvu_mbox_handler_mcs_custom_tag_cfg_get(struct rvu *rvu, struct mcs_custom_t
 	return 0;
 }
 
+int rvu_mcs_flr_handler(struct rvu *rvu, u16 pcifunc)
+{
+	struct mcs *mcs;
+	int mcs_id;
+
+	/* CNF10K-B mcs0-6 are mapped to RPM2-8*/
+	if (rvu->mcs_blk_cnt > 1) {
+		for (mcs_id = 0; mcs_id < rvu->mcs_blk_cnt; mcs_id++) {
+			mcs = mcs_get_pdata(mcs_id);
+			mcs_free_all_rsrc(mcs, MCS_RX, pcifunc);
+			mcs_free_all_rsrc(mcs, MCS_TX, pcifunc);
+		}
+	} else {
+		/* CN10K-B has only one mcs block */
+		mcs = mcs_get_pdata(0);
+		mcs_free_all_rsrc(mcs, MCS_RX, pcifunc);
+		mcs_free_all_rsrc(mcs, MCS_TX, pcifunc);
+	}
+	return 0;
+}
+
 int rvu_mbox_handler_mcs_flowid_ena_entry(struct rvu *rvu,
 					  struct mcs_flowid_ena_dis_entry *req,
 					  struct msg_rsp *rsp)
@@ -543,8 +564,10 @@  int rvu_mcs_init(struct rvu *rvu)
 		rvu_mcs_set_lmac_bmap(rvu);
 	}
 
+	/* Install default tcam bypass entry and set port to operational mode */
 	for (mcs_id = 0; mcs_id < rvu->mcs_blk_cnt; mcs_id++) {
 		mcs = mcs_get_pdata(mcs_id);
+		mcs_install_flowid_bypass_entry(mcs);
 		for (lmac = 0; lmac < mcs->hw->lmac_cnt; lmac++)
 			mcs_set_lmac_mode(mcs, lmac, 0);
 	}
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 9a150da..4aefe47 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -875,5 +875,6 @@  int rvu_npc_set_parse_mode(struct rvu *rvu, u16 pcifunc, u64 mode, u8 dir,
 
 /* CN10K MCS */
 int rvu_mcs_init(struct rvu *rvu);
+int rvu_mcs_flr_handler(struct rvu *rvu, u16 pcifunc);
 
 #endif /* RVU_H */