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Thu, 18 Jan 2024 01:10:11 -0600 Received: from fllv0122.itg.ti.com (fllv0122.itg.ti.com [10.247.120.72]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 40I7ABlr046934; Thu, 18 Jan 2024 01:10:11 -0600 Received: from localhost (danish-tpc.dhcp.ti.com [10.24.69.25]) by fllv0122.itg.ti.com (8.14.7/8.14.7) with ESMTP id 40I7ABoo021971; Thu, 18 Jan 2024 01:10:11 -0600 From: MD Danish Anwar To: Rob Herring , Dan Carpenter , Jan Kiszka , Andrew Lunn , "Vladimir Oltean" , Wolfram Sang , Arnd Bergmann , "Grygorii Strashko" , Vignesh Raghavendra , Roger Quadros , MD Danish Anwar , Paolo Abeni , Jakub Kicinski , "Eric Dumazet" , "David S. Miller" CC: , , , , Subject: [RFC PATCH v2 1/3] net: ti: icssg-prueth: Add helper functions to configure FDB Date: Thu, 18 Jan 2024 12:40:03 +0530 Message-ID: <20240118071005.1514498-2-danishanwar@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240118071005.1514498-1-danishanwar@ti.com> References: <20240118071005.1514498-1-danishanwar@ti.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1788411296413507445 X-GMAIL-MSGID: 1788411296413507445 Introduce helper functions to configure firmware FDB tables, VLAN tables and Port VLAN ID settings to aid adding Switch mode support. Signed-off-by: MD Danish Anwar --- drivers/net/ethernet/ti/icssg/icssg_config.c | 188 +++++++++++++++++++ drivers/net/ethernet/ti/icssg/icssg_config.h | 19 ++ drivers/net/ethernet/ti/icssg/icssg_prueth.h | 12 ++ 3 files changed, 219 insertions(+) diff --git a/drivers/net/ethernet/ti/icssg/icssg_config.c b/drivers/net/ethernet/ti/icssg/icssg_config.c index 99de8a40ed60..afc10014ec03 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_config.c +++ b/drivers/net/ethernet/ti/icssg/icssg_config.c @@ -469,3 +469,191 @@ void icssg_config_set_speed(struct prueth_emac *emac) writeb(fw_speed, emac->dram.va + PORT_LINK_SPEED_OFFSET); } + +int icssg_send_fdb_msg(struct prueth_emac *emac, struct mgmt_cmd *cmd, + struct mgmt_cmd_rsp *rsp) +{ + struct prueth *prueth = emac->prueth; + int slice = prueth_emac_slice(emac); + int addr, ret; + + addr = icssg_queue_pop(prueth, slice == 0 ? + ICSSG_CMD_POP_SLICE0 : ICSSG_CMD_POP_SLICE1); + if (addr < 0) + return addr; + + /* First 4 bytes have FW owned buffer linking info which should + * not be touched + */ + memcpy_toio(prueth->shram.va + addr + 4, cmd, sizeof(*cmd)); + icssg_queue_push(prueth, slice == 0 ? + ICSSG_CMD_PUSH_SLICE0 : ICSSG_CMD_PUSH_SLICE1, addr); + ret = read_poll_timeout(icssg_queue_pop, addr, addr >= 0, + 2000, 20000000, false, prueth, slice == 0 ? + ICSSG_RSP_POP_SLICE0 : ICSSG_RSP_POP_SLICE1); + if (ret) { + netdev_err(emac->ndev, "Timedout sending HWQ message\n"); + return ret; + } + + memcpy_fromio(rsp, prueth->shram.va + addr, sizeof(*rsp)); + /* Return buffer back for to pool */ + icssg_queue_push(prueth, slice == 0 ? + ICSSG_RSP_PUSH_SLICE0 : ICSSG_RSP_PUSH_SLICE1, addr); + + return 0; +} + +int icssg_fdb_add_del(struct prueth_emac *emac, const unsigned char *addr, + u8 vid, u8 fid_c2, bool add) +{ + struct mgmt_cmd_rsp fdb_cmd_rsp = { 0 }; + int slice = prueth_emac_slice(emac); + struct mgmt_cmd fdb_cmd = { 0 }; + u8 mac_fid[ETH_ALEN + 2]; + u16 fdb_slot; + u8 fid = vid; + int ret, i; + + for (i = 0; i < ETH_ALEN; i++) + mac_fid[i] = addr[i]; + + /* 1-1 VID-FID mapping is already setup */ + mac_fid[ETH_ALEN] = fid; + mac_fid[ETH_ALEN + 1] = 0; + + fdb_slot = bitrev32(crc32_le(0, mac_fid, 8)) & PRUETH_SWITCH_FDB_MASK; + + fdb_cmd.header = ICSSG_FW_MGMT_CMD_HEADER; + fdb_cmd.type = ICSSG_FW_MGMT_FDB_CMD_TYPE; + fdb_cmd.seqnum = ++(emac->prueth->icssg_hwcmdseq); + if (add) + fdb_cmd.param = ICSS_CMD_ADD_FDB; + else + fdb_cmd.param = ICSS_CMD_DEL_FDB; + + fdb_cmd.param |= (slice << 4); + + fid_c2 |= ICSSG_FDB_ENTRY_VALID; + memcpy(&fdb_cmd.cmd_args[0], addr, 4); + memcpy(&fdb_cmd.cmd_args[1], &addr[4], 2); + fdb_cmd.cmd_args[1] |= ((fid << 16) | (fid_c2 << 24)); + fdb_cmd.cmd_args[2] = fdb_slot; + + netdev_dbg(emac->ndev, "MAC %pM slot %X vlan %X FID %X\n", + addr, fdb_slot, vid, fid); + + ret = icssg_send_fdb_msg(emac, &fdb_cmd, &fdb_cmd_rsp); + if (ret) + return ret; + + WARN_ON(fdb_cmd.seqnum != fdb_cmd_rsp.seqnum); + if (fdb_cmd_rsp.status == 1) + return 0; + + return -EINVAL; +} + +int icssg_fdb_lookup(struct prueth_emac *emac, const unsigned char *addr, + u8 vid) +{ + struct mgmt_cmd_rsp fdb_cmd_rsp = { 0 }; + int slice = prueth_emac_slice(emac); + struct mgmt_cmd fdb_cmd = { 0 }; + struct prueth_fdb_slot *slot; + u8 mac_fid[ETH_ALEN + 2]; + u16 fdb_slot; + u8 fid = vid; + int ret, i; + + for (i = 0; i < ETH_ALEN; i++) + mac_fid[i] = addr[i]; + + /* 1-1 VID-FID mapping is already setup */ + mac_fid[ETH_ALEN] = fid; + mac_fid[ETH_ALEN + 1] = 0; + + fdb_slot = bitrev32(crc32_le(0, mac_fid, 8)) & PRUETH_SWITCH_FDB_MASK; + + fdb_cmd.header = ICSSG_FW_MGMT_CMD_HEADER; + fdb_cmd.type = ICSSG_FW_MGMT_FDB_CMD_TYPE; + fdb_cmd.seqnum = ++(emac->prueth->icssg_hwcmdseq); + fdb_cmd.param = ICSS_CMD_GET_FDB_SLOT; + + fdb_cmd.param |= (slice << 4); + + memcpy(&fdb_cmd.cmd_args[0], addr, 4); + memcpy(&fdb_cmd.cmd_args[1], &addr[4], 2); + fdb_cmd.cmd_args[1] |= fid << 16; + fdb_cmd.cmd_args[2] = fdb_slot; + + ret = icssg_send_fdb_msg(emac, &fdb_cmd, &fdb_cmd_rsp); + if (ret) + return ret; + + WARN_ON(fdb_cmd.seqnum != fdb_cmd_rsp.seqnum); + + slot = (struct prueth_fdb_slot __force *)(emac->dram.va + FDB_CMD_BUFFER); + for (i = 0; i < 4; i++) { + if (ether_addr_equal(addr, slot->mac) && vid == slot->fid) + return (slot->fid_c2 & ~ICSSG_FDB_ENTRY_VALID); + slot++; + } + + return 0; +} + +void icssg_vtbl_modify(struct prueth_emac *emac, u8 vid, u8 port_mask, + u8 untag_mask, bool add) +{ + struct prueth *prueth = emac->prueth; + struct prueth_vlan_tbl *tbl; + u8 fid_c1; + + tbl = prueth->vlan_tbl; + fid_c1 = tbl[vid].fid_c1; + + /* FID_C1: bit0..2 port membership mask, + * bit3..5 tagging mask for each port + * bit6 Stream VID (not handled currently) + * bit7 MC flood (not handled currently) + */ + if (add) { + fid_c1 |= (port_mask | port_mask << 3); + fid_c1 &= ~(untag_mask << 3); + } else { + fid_c1 &= ~(port_mask | port_mask << 3); + } + + tbl[vid].fid_c1 = fid_c1; +} + +u16 icssg_get_pvid(struct prueth_emac *emac) +{ + struct prueth *prueth = emac->prueth; + u32 pvid; + + if (emac->port_id == PRUETH_PORT_MII0) + pvid = readl(prueth->shram.va + EMAC_ICSSG_SWITCH_PORT1_DEFAULT_VLAN_OFFSET); + else + pvid = readl(prueth->shram.va + EMAC_ICSSG_SWITCH_PORT2_DEFAULT_VLAN_OFFSET); + + pvid = pvid >> 24; + + return pvid; +} + +void icssg_set_pvid(struct prueth *prueth, u8 vid, u8 port) +{ + u32 pvid; + + /* only 256 VLANs are supported */ + pvid = (u32 __force)cpu_to_be32((ETH_P_8021Q << 16) | (vid & 0xff)); + + if (port == PRUETH_PORT_MII0) + writel(pvid, prueth->shram.va + EMAC_ICSSG_SWITCH_PORT1_DEFAULT_VLAN_OFFSET); + else if (port == PRUETH_PORT_MII1) + writel(pvid, prueth->shram.va + EMAC_ICSSG_SWITCH_PORT2_DEFAULT_VLAN_OFFSET); + else + writel(pvid, prueth->shram.va + EMAC_ICSSG_SWITCH_PORT0_DEFAULT_VLAN_OFFSET); +} diff --git a/drivers/net/ethernet/ti/icssg/icssg_config.h b/drivers/net/ethernet/ti/icssg/icssg_config.h index 43eb0922172a..0d5d5d253b7a 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_config.h +++ b/drivers/net/ethernet/ti/icssg/icssg_config.h @@ -35,6 +35,8 @@ struct icssg_flow_cfg { (2 * (PRUETH_EMAC_BUF_POOL_SIZE * PRUETH_NUM_BUF_POOLS + \ PRUETH_EMAC_RX_CTX_BUF_SIZE * 2)) +#define PRUETH_SWITCH_FDB_MASK ((SIZE_OF_FDB / NUMBER_OF_FDB_BUCKET_ENTRIES) - 1) + struct icssg_rxq_ctx { __le32 start[3]; __le32 end; @@ -146,6 +148,23 @@ struct icssg_setclock_desc { #define ICSSG_TS_PUSH_SLICE0 40 #define ICSSG_TS_PUSH_SLICE1 41 +struct mgmt_cmd { + u8 param; + u8 seqnum; + u8 type; + u8 header; + u32 cmd_args[3]; +} __packed; + +struct mgmt_cmd_rsp { + u32 reserved; + u8 status; + u8 seqnum; + u8 type; + u8 header; + u32 cmd_args[3]; +} __packed; + /* FDB FID_C2 flag definitions */ /* Indicates host port membership.*/ #define ICSSG_FDB_ENTRY_P0_MEMBERSHIP BIT(0) diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.h b/drivers/net/ethernet/ti/icssg/icssg_prueth.h index 8b6d6b497010..006f77217bd1 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_prueth.h +++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.h @@ -210,6 +210,7 @@ struct prueth_pdata { * @emacs_initialized: num of EMACs/ext ports that are up/running * @iep0: pointer to IEP0 device * @iep1: pointer to IEP1 device + * @vlan_tbl: VLAN-FID table pointer */ struct prueth { struct device *dev; @@ -234,6 +235,7 @@ struct prueth { int emacs_initialized; struct icss_iep *iep0; struct icss_iep *iep1; + struct prueth_vlan_tbl *vlan_tbl; }; struct emac_tx_ts_response { @@ -279,6 +281,16 @@ int icssg_queue_pop(struct prueth *prueth, u8 queue); void icssg_queue_push(struct prueth *prueth, int queue, u16 addr); u32 icssg_queue_level(struct prueth *prueth, int queue); +int icssg_send_fdb_msg(struct prueth_emac *emac, struct mgmt_cmd *cmd, + struct mgmt_cmd_rsp *rsp); +int icssg_fdb_add_del(struct prueth_emac *emac, const unsigned char *addr, + u8 vid, u8 fid_c2, bool add); +int icssg_fdb_lookup(struct prueth_emac *emac, const unsigned char *addr, + u8 vid); +void icssg_vtbl_modify(struct prueth_emac *emac, u8 vid, u8 port_mask, + u8 untag_mask, bool add); +u16 icssg_get_pvid(struct prueth_emac *emac); +void icssg_set_pvid(struct prueth *prueth, u8 vid, u8 port); #define prueth_napi_to_tx_chn(pnapi) \ container_of(pnapi, struct prueth_tx_chn, napi_tx)