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| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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| *******************************************************************************/ |
| |
| #include "mvOs.h" |
| #include "mvCommon.h" |
| #include "mv802_3.h" |
| #ifndef CONFIG_OF |
| #include "ctrlEnv/mvCtrlEnvLib.h" |
| #endif |
| |
| #include "gbe/mvNetaRegs.h" |
| #include "gbe/mvEthRegs.h" |
| |
| #include "mvPnc.h" |
| #include "mvTcam.h" |
| |
| #ifdef CONFIG_MV_ETH_PNC_L3_FLOW |
| int first_2tuple_rule = TE_FLOW_L3_END + 1; |
| int last_5tuple_rule = TE_FLOW_L3 - 1; |
| |
| extern int pnc_port_mask_check(unsigned int mask, int eth_port); |
| |
| static INLINE struct tcam_entry *pnc_create_2t_entry(unsigned int sip, unsigned int dip) |
| { |
| struct tcam_entry *te = tcam_sw_alloc(TCAM_LU_FLOW_IP4); |
| |
| tcam_sw_set_byte(te, 12, (sip >> 0) & 0xFF); |
| tcam_sw_set_byte(te, 13, (sip >> 8) & 0xFF); |
| tcam_sw_set_byte(te, 14, (sip >> 16) & 0xFF); |
| tcam_sw_set_byte(te, 15, (sip >> 24) & 0xFF); |
| |
| tcam_sw_set_byte(te, 16, (dip >> 0) & 0xFF); |
| tcam_sw_set_byte(te, 17, (dip >> 8) & 0xFF); |
| tcam_sw_set_byte(te, 18, (dip >> 16) & 0xFF); |
| tcam_sw_set_byte(te, 19, (dip >> 24) & 0xFF); |
| |
| return te; |
| } |
| |
| static INLINE int tcam_sw_cmp_2tuple(struct tcam_entry *te, unsigned int sip, unsigned int dip) |
| { |
| return !((tcam_sw_cmp_bytes(te, 12, 4, (unsigned char *)&sip) == 0) |
| && (tcam_sw_cmp_bytes(te, 16, 4, (unsigned char *)&dip) == 0)); |
| } |
| |
| static INLINE int tcam_sw_cmp_5tuple(struct tcam_entry *te, unsigned int sip, unsigned int dip, |
| unsigned int ports, unsigned int proto) |
| { |
| if (tcam_sw_cmp_2tuple(te, sip, dip) != 0) |
| return 1; |
| |
| return !((tcam_sw_cmp_bytes(te, 9, 1, (unsigned char *)&proto) == 0) && |
| (tcam_sw_cmp_bytes(te, 20, 2, (unsigned char *)&ports) == 0)); |
| } |
| #endif /* CONFIG_MV_ETH_PNC_L3_FLOW */ |
| |
| static INLINE int pnc_mask_to_port(unsigned int mask) |
| { |
| #ifdef CONFIG_ARCH_FEROCEON_KW2 |
| switch (mask) { |
| case 27: |
| return 0; |
| case 15: |
| return 1; |
| case 30: |
| return 2; |
| default: |
| return -1; |
| } |
| #else |
| switch (mask) { |
| case 30: |
| return 0; |
| case 15: |
| return 1; |
| case 27: |
| return 2; |
| case 23: |
| return 3; |
| default: |
| return -1; |
| } |
| #endif /* MV_ETH_PNC_NEW */ |
| } |
| |
| /* |
| * pnc_ip4_2tuple - Add 2-tuple priority rules |
| */ |
| int pnc_ip4_2tuple_rxq(unsigned int eth_port, unsigned int sip, unsigned int dip, int rxq) |
| { |
| #ifdef CONFIG_MV_ETH_PNC_L3_FLOW |
| struct tcam_entry *te; |
| unsigned int pdata, pmask; |
| int tid, empty = -1, min_index_occupied = TE_FLOW_L3_END + 1; |
| |
| if (rxq < -2 || rxq >= CONFIG_MV_ETH_RXQ || eth_port >= CONFIG_MV_ETH_PORTS_NUM) |
| return 1; |
| |
| for (tid = TE_FLOW_L3_END; tid > last_5tuple_rule; tid--) { |
| te = pnc_tcam_entry_get(tid); |
| /* Remember first Empty entry */ |
| if (te == NULL) { |
| if (empty == -1) |
| empty = tid; |
| continue; |
| } |
| |
| /* Find existing entry for this rule */ |
| if (tcam_sw_cmp_2tuple(te, sip, dip) == 0) { |
| tcam_sw_get_port(te, &pdata, &pmask); |
| if (rxq == -2) { /* delete rule */ |
| if (!pnc_port_mask_check(pmask, eth_port)) { |
| printk(KERN_ERR "%s: rule is not associated with this port (%d)\n", __func__, eth_port); |
| tcam_sw_free(te); |
| return 1; |
| } |
| if (first_2tuple_rule == tid) |
| first_2tuple_rule = min_index_occupied; |
| pnc_te_del(tid); |
| tcam_sw_free(te); |
| return 0; |
| } |
| |
| if (!pnc_port_mask_check(pmask, eth_port)) { /* rule is already associated with another port */ |
| printk(KERN_ERR "%s: rule is already associated with port %d\n", |
| __func__, pnc_mask_to_port(pmask)); |
| return 1; |
| } |
| if (rxq == -1) { /* set rule to drop mode */ |
| sram_sw_set_rinfo(te, RI_DROP, RI_DROP); |
| sram_sw_set_lookup_done(te, 1); |
| tcam_hw_write(te, tid); |
| } else { /* update rxq */ |
| sram_sw_set_rinfo(te, 0, RI_DROP); |
| sram_sw_set_rinfo(te, RI_L3_FLOW, RI_L3_FLOW); |
| sram_sw_set_rxq(te, rxq, 0); |
| tcam_hw_write(te, tid); |
| } |
| |
| tcam_sw_free(te); |
| return 0; |
| } |
| min_index_occupied = tid; |
| tcam_sw_free(te); |
| } |
| |
| /* Add rule to PNC */ |
| if (rxq == -2) { |
| mvOsPrintf("%s: Entry not found - sip=0x%x, dip=0x%x, rxq=%d\n", __func__, sip, dip, rxq); |
| return 1; |
| } |
| /* Not found existing entry and no free TCAM entry - Failed */ |
| if ((empty == -1) || (empty <= last_5tuple_rule)) { |
| mvOsPrintf("%s: No free place - sip=0x%x, dip=0x%x, rxq=%d\n", __func__, sip, dip, rxq); |
| return 1; |
| } |
| |
| /* update upper border of 2 tuple rules */ |
| if (first_2tuple_rule > empty) |
| first_2tuple_rule = empty; |
| |
| te = pnc_create_2t_entry(sip, dip); |
| pmask = pnc_port_mask(eth_port); |
| tcam_sw_set_port(te, 0, pmask); |
| sram_sw_set_lookup_done(te, 1); |
| tcam_sw_text(te, "ipv4_2t"); |
| |
| if (rxq == -1) { |
| sram_sw_set_rinfo(te, RI_DROP, RI_DROP); |
| sram_sw_set_lookup_done(te, 1); |
| } else { |
| sram_sw_set_rinfo(te, 0, RI_DROP); |
| sram_sw_set_rinfo(te, RI_L3_FLOW, RI_L3_FLOW); |
| sram_sw_set_rxq(te, rxq, 0); |
| } |
| |
| tcam_hw_write(te, empty); |
| tcam_sw_free(te); |
| |
| return 0; |
| #else |
| return -1; |
| #endif /* CONFIG_MV_ETH_PNC_L3_FLOW */ |
| } |
| |
| /* |
| * pnc_ip4_5tuple - Add 5-tuple priority rules |
| */ |
| int pnc_ip4_5tuple_rxq(unsigned int eth_port, unsigned int sip, unsigned int dip, unsigned int ports, |
| unsigned int proto, int rxq) |
| { |
| #ifdef CONFIG_MV_ETH_PNC_L3_FLOW |
| struct tcam_entry *te; |
| unsigned int pdata, pmask; |
| int tid, empty = -1, max_index_occupied = TE_FLOW_L3 - 1; |
| |
| if (rxq < -2 || rxq >= CONFIG_MV_ETH_RXQ || eth_port >= CONFIG_MV_ETH_PORTS_NUM) |
| return 1; |
| |
| for (tid = TE_FLOW_L3; tid < first_2tuple_rule; tid++) { |
| te = pnc_tcam_entry_get(tid); |
| /* Remember first Empty entry */ |
| if (te == NULL) { |
| if (empty == -1) |
| empty = tid; |
| continue; |
| } |
| /* Find existing entry for this rule */ |
| if (tcam_sw_cmp_5tuple(te, sip, dip, ports, proto) == 0) { |
| tcam_sw_get_port(te, &pdata, &pmask); |
| if (rxq == -2) { /* delete rule */ |
| if (!pnc_port_mask_check(pmask, eth_port)) { |
| printk(KERN_ERR "%s: rule is not associated with this port (%d)\n", __func__, eth_port); |
| tcam_sw_free(te); |
| return 1; |
| } |
| if (last_5tuple_rule == tid) |
| last_5tuple_rule = max_index_occupied; |
| pnc_te_del(tid); |
| tcam_sw_free(te); |
| return 0; |
| } |
| |
| if (!pnc_port_mask_check(pmask, eth_port)) { /* rule is already associated with another port */ |
| printk(KERN_ERR "%s: rule is already associated with port %d\n", |
| __func__, pnc_mask_to_port(pmask)); |
| return 1; |
| } |
| if (rxq == -1) { /* set rule to drop mode */ |
| sram_sw_set_rinfo(te, RI_DROP, RI_DROP); |
| sram_sw_set_lookup_done(te, 1); |
| tcam_hw_write(te, tid); |
| } else { /* update rxq */ |
| sram_sw_set_rinfo(te, 0, RI_DROP); |
| sram_sw_set_rinfo(te, RI_L3_FLOW, RI_L3_FLOW); |
| sram_sw_set_rxq(te, rxq, 0); |
| tcam_hw_write(te, tid); |
| } |
| |
| tcam_sw_free(te); |
| return 0; |
| } |
| max_index_occupied = tid; |
| tcam_sw_free(te); |
| } |
| |
| /* Add rule to PNC */ |
| if (rxq == -2) { |
| mvOsPrintf("%s: Entry not found - sip=0x%x, dip=0x%x, ports=0x%x, proto=%d, rxq=%d\n", |
| __func__, sip, dip, ports, proto, rxq); |
| return 1; |
| } |
| /* Not found existing entry and no free TCAM entry - Failed */ |
| if ((empty == -1) || (empty >= first_2tuple_rule)) { |
| mvOsPrintf("%s: No free place - sip=0x%x, dip=0x%x, ports=0x%x, proto=%d, rxq=%d\n", |
| __func__, sip, dip, ports, proto, rxq); |
| return 1; |
| } |
| |
| /* update lower border of 5 tuple rules */ |
| if (last_5tuple_rule < empty) |
| last_5tuple_rule = empty; |
| |
| te = pnc_create_2t_entry(sip, dip); |
| |
| tcam_sw_set_byte(te, 9, proto); |
| tcam_sw_set_byte(te, 20, (ports >> 0) & 0xFF); |
| tcam_sw_set_byte(te, 21, (ports >> 8) & 0xFF); |
| tcam_sw_set_byte(te, 22, (ports >> 16) & 0xFF); |
| tcam_sw_set_byte(te, 23, (ports >> 24) & 0xFF); |
| pmask = pnc_port_mask(eth_port); |
| tcam_sw_set_port(te, 0, pmask); |
| sram_sw_set_lookup_done(te, 1); |
| tcam_sw_text(te, "ipv4_5t"); |
| |
| if (rxq == -1) { |
| sram_sw_set_rinfo(te, RI_DROP, RI_DROP); |
| sram_sw_set_lookup_done(te, 1); |
| } else { |
| sram_sw_set_rinfo(te, 0, RI_DROP); |
| sram_sw_set_rinfo(te, RI_L3_FLOW, RI_L3_FLOW); |
| sram_sw_set_rxq(te, rxq, 0); |
| } |
| |
| tcam_hw_write(te, empty); |
| tcam_sw_free(te); |
| |
| return 0; |
| #else |
| return -1; |
| #endif /* CONFIG_MV_ETH_PNC_L3_FLOW */ |
| } |
| |
| |
| /* |
| * pnc_rxq_map_dump - Dump all rules |
| */ |
| int pnc_rxq_map_dump() |
| { |
| #ifdef CONFIG_MV_ETH_PNC_L3_FLOW |
| struct tcam_entry *te; |
| unsigned int tid, sport, dport, word, shift, rinfo, mask, data; |
| unsigned char sip[4], dip[4], sip_buf[16], dip_buf[16], *proto; |
| |
| mvOsPrintf(" Tid Sip Dip Sport Dport Proto Rxq Port Name\n"); |
| for (tid = TE_FLOW_L3; tid <= TE_FLOW_L3_END; tid++) { |
| te = pnc_tcam_entry_get(tid); |
| /* Remember first Empty entry */ |
| if (te) { |
| memset(sip_buf, 0, 16); |
| memset(dip_buf, 0, 16); |
| |
| sip[0] = *(te->data.u.byte + 12); |
| sip[1] = *(te->data.u.byte + 13); |
| sip[2] = *(te->data.u.byte + 14); |
| sip[3] = *(te->data.u.byte + 15); |
| dip[0] = *(te->data.u.byte + 16); |
| dip[1] = *(te->data.u.byte + 17); |
| dip[2] = *(te->data.u.byte + 18); |
| dip[3] = *(te->data.u.byte + 19); |
| mvOsSPrintf(sip_buf, "%d.%d.%d.%d", sip[0], sip[1], sip[2], sip[3]); |
| mvOsSPrintf(dip_buf, "%d.%d.%d.%d", dip[0], dip[1], dip[2], dip[3]); |
| mvOsPrintf(" %-3d %-15s %-15s ", tid, sip_buf, dip_buf); |
| |
| if (te->ctrl.text[5] == '5') { |
| sport = MV_BYTE_SWAP_16BIT(*((u16 *)(te->data.u.byte + 20))); |
| dport = MV_BYTE_SWAP_16BIT(*((u16 *)(te->data.u.byte + 22))); |
| proto = (*(te->data.u.byte + 9) == 6) ? "TCP" : "UDP"; |
| mvOsPrintf("%-5d %-5d %-5s ", sport, dport, proto); |
| } else |
| mvOsPrintf("----- ----- ----- "); |
| |
| word = RI_VALUE_OFFS / 32; |
| shift = RI_VALUE_OFFS % 32; |
| rinfo = (te->sram.word[word] >> shift) & ((1 << RI_BITS) - 1); |
| if (rinfo & 1) |
| mvOsPrintf("DROP "); |
| else |
| mvOsPrintf("%-4d ", sram_sw_get_rxq(te, NULL)); |
| |
| tcam_sw_get_port(te, &data, &mask); |
| mvOsPrintf("%-4d ", pnc_mask_to_port(mask)); |
| mvOsPrintf("%s\n", te->ctrl.text); |
| |
| tcam_sw_free(te); |
| } |
| } |
| |
| return 0; |
| #else |
| return -1; |
| #endif /* CONFIG_MV_ETH_PNC_L3_FLOW */ |
| } |
