rtl839x.c 54 KB

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  1. // SPDX-License-Identifier: GPL-2.0-only
  2. #include <asm/mach-rtl838x/mach-rtl83xx.h>
  3. #include <linux/etherdevice.h>
  4. #include "rtl83xx.h"
  5. #define RTL839X_VLAN_PORT_TAG_STS_UNTAG 0x0
  6. #define RTL839X_VLAN_PORT_TAG_STS_TAGGED 0x1
  7. #define RTL839X_VLAN_PORT_TAG_STS_PRIORITY_TAGGED 0x2
  8. #define RTL839X_VLAN_PORT_TAG_STS_CTRL_BASE 0x6828
  9. /* port 0-52 */
  10. #define RTL839X_VLAN_PORT_TAG_STS_CTRL(port) \
  11. RTL839X_VLAN_PORT_TAG_STS_CTRL_BASE + (port << 2)
  12. #define RTL839X_VLAN_PORT_TAG_STS_CTRL_OTAG_STS_MASK GENMASK(7,6)
  13. #define RTL839X_VLAN_PORT_TAG_STS_CTRL_ITAG_STS_MASK GENMASK(5,4)
  14. #define RTL839X_VLAN_PORT_TAG_STS_CTRL_EGR_P_OTAG_KEEP_MASK GENMASK(3,3)
  15. #define RTL839X_VLAN_PORT_TAG_STS_CTRL_EGR_P_ITAG_KEEP_MASK GENMASK(2,2)
  16. #define RTL839X_VLAN_PORT_TAG_STS_CTRL_IGR_P_OTAG_KEEP_MASK GENMASK(1,1)
  17. #define RTL839X_VLAN_PORT_TAG_STS_CTRL_IGR_P_ITAG_KEEP_MASK GENMASK(0,0)
  18. extern struct mutex smi_lock;
  19. extern struct rtl83xx_soc_info soc_info;
  20. /* Definition of the RTL839X-specific template field IDs as used in the PIE */
  21. enum template_field_id {
  22. TEMPLATE_FIELD_SPMMASK = 0,
  23. TEMPLATE_FIELD_SPM0 = 1, /* Source portmask ports 0-15 */
  24. TEMPLATE_FIELD_SPM1 = 2, /* Source portmask ports 16-31 */
  25. TEMPLATE_FIELD_SPM2 = 3, /* Source portmask ports 32-47 */
  26. TEMPLATE_FIELD_SPM3 = 4, /* Source portmask ports 48-56 */
  27. TEMPLATE_FIELD_DMAC0 = 5, /* Destination MAC [15:0] */
  28. TEMPLATE_FIELD_DMAC1 = 6, /* Destination MAC [31:16] */
  29. TEMPLATE_FIELD_DMAC2 = 7, /* Destination MAC [47:32] */
  30. TEMPLATE_FIELD_SMAC0 = 8, /* Source MAC [15:0] */
  31. TEMPLATE_FIELD_SMAC1 = 9, /* Source MAC [31:16] */
  32. TEMPLATE_FIELD_SMAC2 = 10, /* Source MAC [47:32] */
  33. TEMPLATE_FIELD_ETHERTYPE = 11, /* Ethernet frame type field */
  34. /* Field-ID 12 is not used */
  35. TEMPLATE_FIELD_OTAG = 13,
  36. TEMPLATE_FIELD_ITAG = 14,
  37. TEMPLATE_FIELD_SIP0 = 15,
  38. TEMPLATE_FIELD_SIP1 = 16,
  39. TEMPLATE_FIELD_DIP0 = 17,
  40. TEMPLATE_FIELD_DIP1 = 18,
  41. TEMPLATE_FIELD_IP_TOS_PROTO = 19,
  42. TEMPLATE_FIELD_IP_FLAG = 20,
  43. TEMPLATE_FIELD_L4_SPORT = 21,
  44. TEMPLATE_FIELD_L4_DPORT = 22,
  45. TEMPLATE_FIELD_L34_HEADER = 23,
  46. TEMPLATE_FIELD_ICMP_IGMP = 24,
  47. TEMPLATE_FIELD_VID_RANG0 = 25,
  48. TEMPLATE_FIELD_VID_RANG1 = 26,
  49. TEMPLATE_FIELD_L4_PORT_RANG = 27,
  50. TEMPLATE_FIELD_FIELD_SELECTOR_VALID = 28,
  51. TEMPLATE_FIELD_FIELD_SELECTOR_0 = 29,
  52. TEMPLATE_FIELD_FIELD_SELECTOR_1 = 30,
  53. TEMPLATE_FIELD_FIELD_SELECTOR_2 = 31,
  54. TEMPLATE_FIELD_FIELD_SELECTOR_3 = 32,
  55. TEMPLATE_FIELD_FIELD_SELECTOR_4 = 33,
  56. TEMPLATE_FIELD_FIELD_SELECTOR_5 = 34,
  57. TEMPLATE_FIELD_SIP2 = 35,
  58. TEMPLATE_FIELD_SIP3 = 36,
  59. TEMPLATE_FIELD_SIP4 = 37,
  60. TEMPLATE_FIELD_SIP5 = 38,
  61. TEMPLATE_FIELD_SIP6 = 39,
  62. TEMPLATE_FIELD_SIP7 = 40,
  63. TEMPLATE_FIELD_OLABEL = 41,
  64. TEMPLATE_FIELD_ILABEL = 42,
  65. TEMPLATE_FIELD_OILABEL = 43,
  66. TEMPLATE_FIELD_DPMMASK = 44,
  67. TEMPLATE_FIELD_DPM0 = 45,
  68. TEMPLATE_FIELD_DPM1 = 46,
  69. TEMPLATE_FIELD_DPM2 = 47,
  70. TEMPLATE_FIELD_DPM3 = 48,
  71. TEMPLATE_FIELD_L2DPM0 = 49,
  72. TEMPLATE_FIELD_L2DPM1 = 50,
  73. TEMPLATE_FIELD_L2DPM2 = 51,
  74. TEMPLATE_FIELD_L2DPM3 = 52,
  75. TEMPLATE_FIELD_IVLAN = 53,
  76. TEMPLATE_FIELD_OVLAN = 54,
  77. TEMPLATE_FIELD_FWD_VID = 55,
  78. TEMPLATE_FIELD_DIP2 = 56,
  79. TEMPLATE_FIELD_DIP3 = 57,
  80. TEMPLATE_FIELD_DIP4 = 58,
  81. TEMPLATE_FIELD_DIP5 = 59,
  82. TEMPLATE_FIELD_DIP6 = 60,
  83. TEMPLATE_FIELD_DIP7 = 61,
  84. };
  85. /* Number of fixed templates predefined in the SoC */
  86. #define N_FIXED_TEMPLATES 5
  87. static enum template_field_id fixed_templates[N_FIXED_TEMPLATES][N_FIXED_FIELDS] =
  88. {
  89. {
  90. TEMPLATE_FIELD_SPM0, TEMPLATE_FIELD_SPM1, TEMPLATE_FIELD_ITAG,
  91. TEMPLATE_FIELD_SMAC0, TEMPLATE_FIELD_SMAC1, TEMPLATE_FIELD_SMAC2,
  92. TEMPLATE_FIELD_DMAC0, TEMPLATE_FIELD_DMAC1, TEMPLATE_FIELD_DMAC2,
  93. TEMPLATE_FIELD_ETHERTYPE, TEMPLATE_FIELD_SPM2, TEMPLATE_FIELD_SPM3
  94. }, {
  95. TEMPLATE_FIELD_SIP0, TEMPLATE_FIELD_SIP1, TEMPLATE_FIELD_DIP0,
  96. TEMPLATE_FIELD_DIP1,TEMPLATE_FIELD_IP_TOS_PROTO, TEMPLATE_FIELD_L4_SPORT,
  97. TEMPLATE_FIELD_L4_DPORT, TEMPLATE_FIELD_ICMP_IGMP, TEMPLATE_FIELD_SPM0,
  98. TEMPLATE_FIELD_SPM1, TEMPLATE_FIELD_SPM2, TEMPLATE_FIELD_SPM3
  99. }, {
  100. TEMPLATE_FIELD_DMAC0, TEMPLATE_FIELD_DMAC1, TEMPLATE_FIELD_DMAC2,
  101. TEMPLATE_FIELD_ITAG, TEMPLATE_FIELD_ETHERTYPE, TEMPLATE_FIELD_IP_TOS_PROTO,
  102. TEMPLATE_FIELD_L4_DPORT, TEMPLATE_FIELD_L4_SPORT, TEMPLATE_FIELD_SIP0,
  103. TEMPLATE_FIELD_SIP1, TEMPLATE_FIELD_DIP0, TEMPLATE_FIELD_DIP1
  104. }, {
  105. TEMPLATE_FIELD_DIP0, TEMPLATE_FIELD_DIP1, TEMPLATE_FIELD_DIP2,
  106. TEMPLATE_FIELD_DIP3, TEMPLATE_FIELD_DIP4, TEMPLATE_FIELD_DIP5,
  107. TEMPLATE_FIELD_DIP6, TEMPLATE_FIELD_DIP7, TEMPLATE_FIELD_L4_DPORT,
  108. TEMPLATE_FIELD_L4_SPORT, TEMPLATE_FIELD_ICMP_IGMP, TEMPLATE_FIELD_IP_TOS_PROTO
  109. }, {
  110. TEMPLATE_FIELD_SIP0, TEMPLATE_FIELD_SIP1, TEMPLATE_FIELD_SIP2,
  111. TEMPLATE_FIELD_SIP3, TEMPLATE_FIELD_SIP4, TEMPLATE_FIELD_SIP5,
  112. TEMPLATE_FIELD_SIP6, TEMPLATE_FIELD_SIP7, TEMPLATE_FIELD_SPM0,
  113. TEMPLATE_FIELD_SPM1, TEMPLATE_FIELD_SPM2, TEMPLATE_FIELD_SPM3
  114. },
  115. };
  116. void rtl839x_print_matrix(void)
  117. {
  118. volatile u64 *ptr9;
  119. ptr9 = RTL838X_SW_BASE + RTL839X_PORT_ISO_CTRL(0);
  120. for (int i = 0; i < 52; i += 4)
  121. pr_debug("> %16llx %16llx %16llx %16llx\n",
  122. ptr9[i + 0], ptr9[i + 1], ptr9[i + 2], ptr9[i + 3]);
  123. pr_debug("CPU_PORT> %16llx\n", ptr9[52]);
  124. }
  125. static inline int rtl839x_port_iso_ctrl(int p)
  126. {
  127. return RTL839X_PORT_ISO_CTRL(p);
  128. }
  129. static inline void rtl839x_exec_tbl0_cmd(u32 cmd)
  130. {
  131. sw_w32(cmd, RTL839X_TBL_ACCESS_CTRL_0);
  132. do { } while (sw_r32(RTL839X_TBL_ACCESS_CTRL_0) & BIT(16));
  133. }
  134. static inline void rtl839x_exec_tbl1_cmd(u32 cmd)
  135. {
  136. sw_w32(cmd, RTL839X_TBL_ACCESS_CTRL_1);
  137. do { } while (sw_r32(RTL839X_TBL_ACCESS_CTRL_1) & BIT(16));
  138. }
  139. inline void rtl839x_exec_tbl2_cmd(u32 cmd)
  140. {
  141. sw_w32(cmd, RTL839X_TBL_ACCESS_CTRL_2);
  142. do { } while (sw_r32(RTL839X_TBL_ACCESS_CTRL_2) & (1 << 9));
  143. }
  144. static inline int rtl839x_tbl_access_data_0(int i)
  145. {
  146. return RTL839X_TBL_ACCESS_DATA_0(i);
  147. }
  148. static void rtl839x_vlan_tables_read(u32 vlan, struct rtl838x_vlan_info *info)
  149. {
  150. u32 u, v, w;
  151. /* Read VLAN table (0) via register 0 */
  152. struct table_reg *r = rtl_table_get(RTL8390_TBL_0, 0);
  153. rtl_table_read(r, vlan);
  154. u = sw_r32(rtl_table_data(r, 0));
  155. v = sw_r32(rtl_table_data(r, 1));
  156. w = sw_r32(rtl_table_data(r, 2));
  157. rtl_table_release(r);
  158. info->tagged_ports = u;
  159. info->tagged_ports = (info->tagged_ports << 21) | ((v >> 11) & 0x1fffff);
  160. info->profile_id = w >> 30 | ((v & 1) << 2);
  161. info->hash_mc_fid = !!(w & BIT(2));
  162. info->hash_uc_fid = !!(w & BIT(3));
  163. info->fid = (v >> 3) & 0xff;
  164. /* Read UNTAG table (0) via table register 1 */
  165. r = rtl_table_get(RTL8390_TBL_1, 0);
  166. rtl_table_read(r, vlan);
  167. u = sw_r32(rtl_table_data(r, 0));
  168. v = sw_r32(rtl_table_data(r, 1));
  169. rtl_table_release(r);
  170. info->untagged_ports = u;
  171. info->untagged_ports = (info->untagged_ports << 21) | ((v >> 11) & 0x1fffff);
  172. }
  173. static void rtl839x_vlan_set_tagged(u32 vlan, struct rtl838x_vlan_info *info)
  174. {
  175. u32 u, v, w;
  176. /* Access VLAN table (0) via register 0 */
  177. struct table_reg *r = rtl_table_get(RTL8390_TBL_0, 0);
  178. u = info->tagged_ports >> 21;
  179. v = info->tagged_ports << 11;
  180. v |= ((u32)info->fid) << 3;
  181. v |= info->hash_uc_fid ? BIT(2) : 0;
  182. v |= info->hash_mc_fid ? BIT(1) : 0;
  183. v |= (info->profile_id & 0x4) ? 1 : 0;
  184. w = ((u32)(info->profile_id & 3)) << 30;
  185. sw_w32(u, rtl_table_data(r, 0));
  186. sw_w32(v, rtl_table_data(r, 1));
  187. sw_w32(w, rtl_table_data(r, 2));
  188. rtl_table_write(r, vlan);
  189. rtl_table_release(r);
  190. }
  191. static void rtl839x_vlan_set_untagged(u32 vlan, u64 portmask)
  192. {
  193. u32 u, v;
  194. /* Access UNTAG table (0) via table register 1 */
  195. struct table_reg *r = rtl_table_get(RTL8390_TBL_1, 0);
  196. u = portmask >> 21;
  197. v = portmask << 11;
  198. sw_w32(u, rtl_table_data(r, 0));
  199. sw_w32(v, rtl_table_data(r, 1));
  200. rtl_table_write(r, vlan);
  201. rtl_table_release(r);
  202. }
  203. /* Sets the L2 forwarding to be based on either the inner VLAN tag or the outer */
  204. static void rtl839x_vlan_fwd_on_inner(int port, bool is_set)
  205. {
  206. if (is_set)
  207. rtl839x_mask_port_reg_be(BIT_ULL(port), 0ULL, RTL839X_VLAN_PORT_FWD);
  208. else
  209. rtl839x_mask_port_reg_be(0ULL, BIT_ULL(port), RTL839X_VLAN_PORT_FWD);
  210. }
  211. /* Hash seed is vid (actually rvid) concatenated with the MAC address */
  212. static u64 rtl839x_l2_hash_seed(u64 mac, u32 vid)
  213. {
  214. u64 v = vid;
  215. v <<= 48;
  216. v |= mac;
  217. return v;
  218. }
  219. /* Applies the same hash algorithm as the one used currently by the ASIC to the seed
  220. * and returns a key into the L2 hash table
  221. */
  222. static u32 rtl839x_l2_hash_key(struct rtl838x_switch_priv *priv, u64 seed)
  223. {
  224. u32 h1, h2, h;
  225. if (sw_r32(priv->r->l2_ctrl_0) & 1) {
  226. h1 = (u32) (((seed >> 60) & 0x3f) ^ ((seed >> 54) & 0x3f) ^
  227. ((seed >> 36) & 0x3f) ^ ((seed >> 30) & 0x3f) ^
  228. ((seed >> 12) & 0x3f) ^ ((seed >> 6) & 0x3f));
  229. h2 = (u32) (((seed >> 48) & 0x3f) ^ ((seed >> 42) & 0x3f) ^
  230. ((seed >> 24) & 0x3f) ^ ((seed >> 18) & 0x3f) ^
  231. (seed & 0x3f));
  232. h = (h1 << 6) | h2;
  233. } else {
  234. h = (seed >> 60) ^
  235. ((((seed >> 48) & 0x3f) << 6) | ((seed >> 54) & 0x3f)) ^
  236. ((seed >> 36) & 0xfff) ^ ((seed >> 24) & 0xfff) ^
  237. ((seed >> 12) & 0xfff) ^ (seed & 0xfff);
  238. }
  239. return h;
  240. }
  241. static inline int rtl839x_mac_force_mode_ctrl(int p)
  242. {
  243. return RTL839X_MAC_FORCE_MODE_CTRL + (p << 2);
  244. }
  245. static inline int rtl839x_mac_port_ctrl(int p)
  246. {
  247. return RTL839X_MAC_PORT_CTRL(p);
  248. }
  249. static inline int rtl839x_l2_port_new_salrn(int p)
  250. {
  251. return RTL839X_L2_PORT_NEW_SALRN(p);
  252. }
  253. static inline int rtl839x_l2_port_new_sa_fwd(int p)
  254. {
  255. return RTL839X_L2_PORT_NEW_SA_FWD(p);
  256. }
  257. static inline int rtl839x_mac_link_spd_sts(int p)
  258. {
  259. return RTL839X_MAC_LINK_SPD_STS(p);
  260. }
  261. static inline int rtl839x_trk_mbr_ctr(int group)
  262. {
  263. return RTL839X_TRK_MBR_CTR + (group << 3);
  264. }
  265. static void rtl839x_fill_l2_entry(u32 r[], struct rtl838x_l2_entry *e)
  266. {
  267. /* Table contains different entry types, we need to identify the right one:
  268. * Check for MC entries, first
  269. */
  270. e->is_ip_mc = !!(r[2] & BIT(31));
  271. e->is_ipv6_mc = !!(r[2] & BIT(30));
  272. e->type = L2_INVALID;
  273. if (!e->is_ip_mc && !e->is_ipv6_mc) {
  274. e->mac[0] = (r[0] >> 12);
  275. e->mac[1] = (r[0] >> 4);
  276. e->mac[2] = ((r[1] >> 28) | (r[0] << 4));
  277. e->mac[3] = (r[1] >> 20);
  278. e->mac[4] = (r[1] >> 12);
  279. e->mac[5] = (r[1] >> 4);
  280. e->vid = (r[2] >> 4) & 0xfff;
  281. e->rvid = (r[0] >> 20) & 0xfff;
  282. /* Is it a unicast entry? check multicast bit */
  283. if (!(e->mac[0] & 1)) {
  284. e->is_static = !!((r[2] >> 18) & 1);
  285. e->port = (r[2] >> 24) & 0x3f;
  286. e->block_da = !!(r[2] & (1 << 19));
  287. e->block_sa = !!(r[2] & (1 << 20));
  288. e->suspended = !!(r[2] & (1 << 17));
  289. e->next_hop = !!(r[2] & (1 << 16));
  290. if (e->next_hop) {
  291. pr_debug("Found next hop entry, need to read data\n");
  292. e->nh_vlan_target = !!(r[2] & BIT(15));
  293. e->nh_route_id = (r[2] >> 4) & 0x1ff;
  294. e->vid = e->rvid;
  295. }
  296. e->age = (r[2] >> 21) & 3;
  297. e->valid = true;
  298. if (!(r[2] & 0xc0fd0000)) /* Check for valid entry */
  299. e->valid = false;
  300. else
  301. e->type = L2_UNICAST;
  302. } else {
  303. e->valid = true;
  304. e->type = L2_MULTICAST;
  305. e->mc_portmask_index = (r[2] >> 6) & 0xfff;
  306. e->vid = e->rvid;
  307. }
  308. } else { /* IPv4 and IPv6 multicast */
  309. e->vid = e->rvid = (r[0] << 20) & 0xfff;
  310. e->mc_gip = r[1];
  311. e->mc_portmask_index = (r[2] >> 6) & 0xfff;
  312. }
  313. if (e->is_ip_mc) {
  314. e->valid = true;
  315. e->type = IP4_MULTICAST;
  316. }
  317. if (e->is_ipv6_mc) {
  318. e->valid = true;
  319. e->type = IP6_MULTICAST;
  320. }
  321. /* pr_info("%s: vid %d, rvid: %d\n", __func__, e->vid, e->rvid); */
  322. }
  323. /* Fills the 3 SoC table registers r[] with the information in the rtl838x_l2_entry */
  324. static void rtl839x_fill_l2_row(u32 r[], struct rtl838x_l2_entry *e)
  325. {
  326. if (!e->valid) {
  327. r[0] = r[1] = r[2] = 0;
  328. return;
  329. }
  330. r[2] = e->is_ip_mc ? BIT(31) : 0;
  331. r[2] |= e->is_ipv6_mc ? BIT(30) : 0;
  332. if (!e->is_ip_mc && !e->is_ipv6_mc) {
  333. r[0] = ((u32)e->mac[0]) << 12;
  334. r[0] |= ((u32)e->mac[1]) << 4;
  335. r[0] |= ((u32)e->mac[2]) >> 4;
  336. r[1] = ((u32)e->mac[2]) << 28;
  337. r[1] |= ((u32)e->mac[3]) << 20;
  338. r[1] |= ((u32)e->mac[4]) << 12;
  339. r[1] |= ((u32)e->mac[5]) << 4;
  340. if (!(e->mac[0] & 1)) { /* Not multicast */
  341. r[2] |= e->is_static ? BIT(18) : 0;
  342. r[0] |= ((u32)e->rvid) << 20;
  343. r[2] |= e->port << 24;
  344. r[2] |= e->block_da ? BIT(19) : 0;
  345. r[2] |= e->block_sa ? BIT(20) : 0;
  346. r[2] |= e->suspended ? BIT(17) : 0;
  347. r[2] |= ((u32)e->age) << 21;
  348. if (e->next_hop) {
  349. r[2] |= BIT(16);
  350. r[2] |= e->nh_vlan_target ? BIT(15) : 0;
  351. r[2] |= (e->nh_route_id & 0x7ff) << 4;
  352. } else {
  353. r[2] |= e->vid << 4;
  354. }
  355. pr_debug("Write L2 NH: %08x %08x %08x\n", r[0], r[1], r[2]);
  356. } else { /* L2 Multicast */
  357. r[0] |= ((u32)e->rvid) << 20;
  358. r[2] |= ((u32)e->mc_portmask_index) << 6;
  359. }
  360. } else { /* IPv4 or IPv6 MC entry */
  361. r[0] = ((u32)e->rvid) << 20;
  362. r[1] = e->mc_gip;
  363. r[2] |= ((u32)e->mc_portmask_index) << 6;
  364. }
  365. }
  366. /* Read an L2 UC or MC entry out of a hash bucket of the L2 forwarding table
  367. * hash is the id of the bucket and pos is the position of the entry in that bucket
  368. * The data read from the SoC is filled into rtl838x_l2_entry
  369. */
  370. static u64 rtl839x_read_l2_entry_using_hash(u32 hash, u32 pos, struct rtl838x_l2_entry *e)
  371. {
  372. u32 r[3];
  373. struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 0);
  374. u32 idx = (0 << 14) | (hash << 2) | pos; /* Search SRAM, with hash and at pos in bucket */
  375. rtl_table_read(q, idx);
  376. for (int i = 0; i < 3; i++)
  377. r[i] = sw_r32(rtl_table_data(q, i));
  378. rtl_table_release(q);
  379. rtl839x_fill_l2_entry(r, e);
  380. if (!e->valid)
  381. return 0;
  382. return rtl839x_l2_hash_seed(ether_addr_to_u64(&e->mac[0]), e->rvid);
  383. }
  384. static void rtl839x_write_l2_entry_using_hash(u32 hash, u32 pos, struct rtl838x_l2_entry *e)
  385. {
  386. u32 r[3];
  387. struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 0);
  388. u32 idx = (0 << 14) | (hash << 2) | pos; /* Access SRAM, with hash and at pos in bucket */
  389. rtl839x_fill_l2_row(r, e);
  390. for (int i = 0; i < 3; i++)
  391. sw_w32(r[i], rtl_table_data(q, i));
  392. rtl_table_write(q, idx);
  393. rtl_table_release(q);
  394. }
  395. static u64 rtl839x_read_cam(int idx, struct rtl838x_l2_entry *e)
  396. {
  397. u32 r[3];
  398. struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 1); /* Access L2 Table 1 */
  399. rtl_table_read(q, idx);
  400. for (int i = 0; i < 3; i++)
  401. r[i] = sw_r32(rtl_table_data(q, i));
  402. rtl_table_release(q);
  403. rtl839x_fill_l2_entry(r, e);
  404. if (!e->valid)
  405. return 0;
  406. pr_debug("Found in CAM: R1 %x R2 %x R3 %x\n", r[0], r[1], r[2]);
  407. /* Return MAC with concatenated VID ac concatenated ID */
  408. return rtl839x_l2_hash_seed(ether_addr_to_u64(&e->mac[0]), e->rvid);
  409. }
  410. static void rtl839x_write_cam(int idx, struct rtl838x_l2_entry *e)
  411. {
  412. u32 r[3];
  413. struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 1); /* Access L2 Table 1 */
  414. rtl839x_fill_l2_row(r, e);
  415. for (int i = 0; i < 3; i++)
  416. sw_w32(r[i], rtl_table_data(q, i));
  417. rtl_table_write(q, idx);
  418. rtl_table_release(q);
  419. }
  420. static u64 rtl839x_read_mcast_pmask(int idx)
  421. {
  422. u64 portmask;
  423. /* Read MC_PMSK (2) via register RTL8390_TBL_L2 */
  424. struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 2);
  425. rtl_table_read(q, idx);
  426. portmask = sw_r32(rtl_table_data(q, 0));
  427. portmask <<= 32;
  428. portmask |= sw_r32(rtl_table_data(q, 1));
  429. portmask >>= 11; /* LSB is bit 11 in data registers */
  430. rtl_table_release(q);
  431. return portmask;
  432. }
  433. static void rtl839x_write_mcast_pmask(int idx, u64 portmask)
  434. {
  435. /* Access MC_PMSK (2) via register RTL8380_TBL_L2 */
  436. struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 2);
  437. portmask <<= 11; /* LSB is bit 11 in data registers */
  438. sw_w32((u32)(portmask >> 32), rtl_table_data(q, 0));
  439. sw_w32((u32)((portmask & 0xfffff800)), rtl_table_data(q, 1));
  440. rtl_table_write(q, idx);
  441. rtl_table_release(q);
  442. }
  443. static void rtl839x_vlan_profile_setup(int profile)
  444. {
  445. u32 p[2];
  446. u32 pmask_id = UNKNOWN_MC_PMASK;
  447. p[0] = pmask_id; /* Use portmaks 0xfff for unknown IPv6 MC flooding */
  448. /* Enable L2 Learning BIT 0, portmask UNKNOWN_MC_PMASK for IP/L2-MC traffic flooding */
  449. p[1] = 1 | pmask_id << 1 | pmask_id << 13;
  450. sw_w32(p[0], RTL839X_VLAN_PROFILE(profile));
  451. sw_w32(p[1], RTL839X_VLAN_PROFILE(profile) + 4);
  452. rtl839x_write_mcast_pmask(UNKNOWN_MC_PMASK, 0x001fffffffffffff);
  453. }
  454. u64 rtl839x_traffic_get(int source)
  455. {
  456. return rtl839x_get_port_reg_be(rtl839x_port_iso_ctrl(source));
  457. }
  458. void rtl839x_traffic_set(int source, u64 dest_matrix)
  459. {
  460. rtl839x_set_port_reg_be(dest_matrix, rtl839x_port_iso_ctrl(source));
  461. }
  462. void rtl839x_traffic_enable(int source, int dest)
  463. {
  464. rtl839x_mask_port_reg_be(0, BIT_ULL(dest), rtl839x_port_iso_ctrl(source));
  465. }
  466. void rtl839x_traffic_disable(int source, int dest)
  467. {
  468. rtl839x_mask_port_reg_be(BIT_ULL(dest), 0, rtl839x_port_iso_ctrl(source));
  469. }
  470. static void rtl839x_l2_learning_setup(void)
  471. {
  472. /* Set portmask for broadcast (offset bit 12) and unknown unicast (offset 0)
  473. * address flooding to the reserved entry in the portmask table used
  474. * also for multicast flooding */
  475. sw_w32(UNKNOWN_MC_PMASK << 12 | UNKNOWN_MC_PMASK, RTL839X_L2_FLD_PMSK);
  476. /* Limit learning to maximum: 32k entries, after that just flood (bits 0-1) */
  477. sw_w32((0x7fff << 2) | 0, RTL839X_L2_LRN_CONSTRT);
  478. /* Do not trap ARP packets to CPU_PORT */
  479. sw_w32(0, RTL839X_SPCL_TRAP_ARP_CTRL);
  480. }
  481. static void rtl839x_enable_learning(int port, bool enable)
  482. {
  483. /* Limit learning to maximum: 32k entries */
  484. sw_w32_mask(0x7fff << 2, enable ? (0x7fff << 2) : 0,
  485. RTL839X_L2_PORT_LRN_CONSTRT + (port << 2));
  486. }
  487. static void rtl839x_enable_flood(int port, bool enable)
  488. {
  489. /* 0: Forward
  490. * 1: Disable
  491. * 2: to CPU
  492. * 3: Copy to CPU
  493. */
  494. sw_w32_mask(0x3, enable ? 0 : 1,
  495. RTL839X_L2_PORT_LRN_CONSTRT + (port << 2));
  496. }
  497. static void rtl839x_enable_mcast_flood(int port, bool enable)
  498. {
  499. }
  500. static void rtl839x_enable_bcast_flood(int port, bool enable)
  501. {
  502. }
  503. static void rtl839x_set_static_move_action(int port, bool forward)
  504. {
  505. int shift = MV_ACT_PORT_SHIFT(port);
  506. u32 val = forward ? MV_ACT_FORWARD : MV_ACT_DROP;
  507. sw_w32_mask(MV_ACT_MASK << shift, val << shift,
  508. RTL839X_L2_PORT_STATIC_MV_ACT(port));
  509. }
  510. irqreturn_t rtl839x_switch_irq(int irq, void *dev_id)
  511. {
  512. struct dsa_switch *ds = dev_id;
  513. u32 status = sw_r32(RTL839X_ISR_GLB_SRC);
  514. u64 ports = rtl839x_get_port_reg_le(RTL839X_ISR_PORT_LINK_STS_CHG);
  515. u64 link;
  516. /* Clear status */
  517. rtl839x_set_port_reg_le(ports, RTL839X_ISR_PORT_LINK_STS_CHG);
  518. pr_debug("RTL8390 Link change: status: %x, ports %llx\n", status, ports);
  519. for (int i = 0; i < RTL839X_CPU_PORT; i++) {
  520. if (ports & BIT_ULL(i)) {
  521. link = rtl839x_get_port_reg_le(RTL839X_MAC_LINK_STS);
  522. if (link & BIT_ULL(i))
  523. dsa_port_phylink_mac_change(ds, i, true);
  524. else
  525. dsa_port_phylink_mac_change(ds, i, false);
  526. }
  527. }
  528. return IRQ_HANDLED;
  529. }
  530. /* TODO: unused */
  531. int rtl8390_sds_power(int mac, int val)
  532. {
  533. u32 offset = (mac == 48) ? 0x0 : 0x100;
  534. u32 mode = val ? 0 : 1;
  535. pr_debug("In %s: mac %d, set %d\n", __func__, mac, val);
  536. if ((mac != 48) && (mac != 49)) {
  537. pr_err("%s: not an SFP port: %d\n", __func__, mac);
  538. return -1;
  539. }
  540. /* Set bit 1003. 1000 starts at 7c */
  541. sw_w32_mask(BIT(11), mode << 11, RTL839X_SDS12_13_PWR0 + offset);
  542. return 0;
  543. }
  544. static int rtl839x_smi_wait_op(int timeout)
  545. {
  546. int ret = 0;
  547. u32 val;
  548. ret = readx_poll_timeout(sw_r32, RTL839X_PHYREG_ACCESS_CTRL,
  549. val, !(val & 0x1), 20, timeout);
  550. if (ret)
  551. pr_err("%s: timeout\n", __func__);
  552. return ret;
  553. }
  554. int rtl839x_read_phy(u32 port, u32 page, u32 reg, u32 *val)
  555. {
  556. u32 v;
  557. int err = 0;
  558. if (port > 63 || page > 4095 || reg > 31)
  559. return -ENOTSUPP;
  560. /* Take bug on RTL839x Rev <= C into account */
  561. if (port >= RTL839X_CPU_PORT)
  562. return -EIO;
  563. mutex_lock(&smi_lock);
  564. sw_w32_mask(0xffff0000, port << 16, RTL839X_PHYREG_DATA_CTRL);
  565. v = reg << 5 | page << 10 | ((page == 0x1fff) ? 0x1f : 0) << 23;
  566. sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
  567. sw_w32(0x1ff, RTL839X_PHYREG_CTRL);
  568. v |= 1;
  569. sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
  570. err = rtl839x_smi_wait_op(100000);
  571. if (err)
  572. goto errout;
  573. *val = sw_r32(RTL839X_PHYREG_DATA_CTRL) & 0xffff;
  574. errout:
  575. mutex_unlock(&smi_lock);
  576. return err;
  577. }
  578. int rtl839x_write_phy(u32 port, u32 page, u32 reg, u32 val)
  579. {
  580. u32 v;
  581. int err = 0;
  582. val &= 0xffff;
  583. if (port > 63 || page > 4095 || reg > 31)
  584. return -ENOTSUPP;
  585. /* Take bug on RTL839x Rev <= C into account */
  586. if (port >= RTL839X_CPU_PORT)
  587. return -EIO;
  588. mutex_lock(&smi_lock);
  589. /* Set PHY to access */
  590. rtl839x_set_port_reg_le(BIT_ULL(port), RTL839X_PHYREG_PORT_CTRL);
  591. sw_w32_mask(0xffff0000, val << 16, RTL839X_PHYREG_DATA_CTRL);
  592. v = reg << 5 | page << 10 | ((page == 0x1fff) ? 0x1f : 0) << 23;
  593. sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
  594. sw_w32(0x1ff, RTL839X_PHYREG_CTRL);
  595. v |= BIT(3) | 1; /* Write operation and execute */
  596. sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
  597. err = rtl839x_smi_wait_op(100000);
  598. if (err)
  599. goto errout;
  600. if (sw_r32(RTL839X_PHYREG_ACCESS_CTRL) & 0x2)
  601. err = -EIO;
  602. errout:
  603. mutex_unlock(&smi_lock);
  604. return err;
  605. }
  606. /* Read an mmd register of the PHY */
  607. int rtl839x_read_mmd_phy(u32 port, u32 devnum, u32 regnum, u32 *val)
  608. {
  609. int err = 0;
  610. u32 v;
  611. /* Take bug on RTL839x Rev <= C into account */
  612. if (port >= RTL839X_CPU_PORT)
  613. return -EIO;
  614. mutex_lock(&smi_lock);
  615. /* Set PHY to access */
  616. sw_w32_mask(0xffff << 16, port << 16, RTL839X_PHYREG_DATA_CTRL);
  617. /* Set MMD device number and register to write to */
  618. sw_w32(devnum << 16 | (regnum & 0xffff), RTL839X_PHYREG_MMD_CTRL);
  619. v = BIT(2) | BIT(0); /* MMD-access | EXEC */
  620. sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
  621. err = rtl839x_smi_wait_op(100000);
  622. if (err)
  623. goto errout;
  624. /* There is no error-checking via BIT 1 of v, as it does not seem to be set correctly */
  625. *val = (sw_r32(RTL839X_PHYREG_DATA_CTRL) & 0xffff);
  626. pr_debug("%s: port %d, regnum: %x, val: %x (err %d)\n", __func__, port, regnum, *val, err);
  627. errout:
  628. mutex_unlock(&smi_lock);
  629. return err;
  630. }
  631. /* Write to an mmd register of the PHY */
  632. int rtl839x_write_mmd_phy(u32 port, u32 devnum, u32 regnum, u32 val)
  633. {
  634. int err = 0;
  635. u32 v;
  636. /* Take bug on RTL839x Rev <= C into account */
  637. if (port >= RTL839X_CPU_PORT)
  638. return -EIO;
  639. mutex_lock(&smi_lock);
  640. /* Set PHY to access */
  641. rtl839x_set_port_reg_le(BIT_ULL(port), RTL839X_PHYREG_PORT_CTRL);
  642. /* Set data to write */
  643. sw_w32_mask(0xffff << 16, val << 16, RTL839X_PHYREG_DATA_CTRL);
  644. /* Set MMD device number and register to write to */
  645. sw_w32(devnum << 16 | (regnum & 0xffff), RTL839X_PHYREG_MMD_CTRL);
  646. v = BIT(3) | BIT(2) | BIT(0); /* WRITE | MMD-access | EXEC */
  647. sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
  648. err = rtl839x_smi_wait_op(100000);
  649. if (err)
  650. goto errout;
  651. pr_debug("%s: port %d, regnum: %x, val: %x (err %d)\n", __func__, port, regnum, val, err);
  652. errout:
  653. mutex_unlock(&smi_lock);
  654. return err;
  655. }
  656. void rtl8390_get_version(struct rtl838x_switch_priv *priv)
  657. {
  658. u32 info, model;
  659. sw_w32_mask(0xf << 28, 0xa << 28, RTL839X_CHIP_INFO);
  660. info = sw_r32(RTL839X_CHIP_INFO);
  661. model = sw_r32(RTL839X_MODEL_NAME_INFO);
  662. priv->version = RTL8390_VERSION_A + ((model & 0x3f) >> 1);
  663. pr_info("RTL839X Chip-Info: %x, version %c\n", info, priv->version);
  664. }
  665. void rtl839x_vlan_profile_dump(int profile)
  666. {
  667. u32 p[2];
  668. if (profile < 0 || profile > 7)
  669. return;
  670. p[0] = sw_r32(RTL839X_VLAN_PROFILE(profile));
  671. p[1] = sw_r32(RTL839X_VLAN_PROFILE(profile) + 4);
  672. pr_info("VLAN profile %d: L2 learning: %d, UNKN L2MC FLD PMSK %d, \
  673. UNKN IPMC FLD PMSK %d, UNKN IPv6MC FLD PMSK: %d",
  674. profile, p[1] & 1, (p[1] >> 1) & 0xfff, (p[1] >> 13) & 0xfff,
  675. (p[0]) & 0xfff);
  676. pr_info("VLAN profile %d: raw %08x, %08x\n", profile, p[0], p[1]);
  677. }
  678. static void rtl839x_stp_get(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[])
  679. {
  680. u32 cmd = 1 << 16 | /* Execute cmd */
  681. 0 << 15 | /* Read */
  682. 5 << 12 | /* Table type 0b101 */
  683. (msti & 0xfff);
  684. priv->r->exec_tbl0_cmd(cmd);
  685. for (int i = 0; i < 4; i++)
  686. port_state[i] = sw_r32(priv->r->tbl_access_data_0(i));
  687. }
  688. static void rtl839x_stp_set(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[])
  689. {
  690. u32 cmd = 1 << 16 | /* Execute cmd */
  691. 1 << 15 | /* Write */
  692. 5 << 12 | /* Table type 0b101 */
  693. (msti & 0xfff);
  694. for (int i = 0; i < 4; i++)
  695. sw_w32(port_state[i], priv->r->tbl_access_data_0(i));
  696. priv->r->exec_tbl0_cmd(cmd);
  697. }
  698. /* Enables or disables the EEE/EEEP capability of a port */
  699. void rtl839x_port_eee_set(struct rtl838x_switch_priv *priv, int port, bool enable)
  700. {
  701. u32 v;
  702. /* This works only for Ethernet ports, and on the RTL839X, ports above 47 are SFP */
  703. if (port >= 48)
  704. return;
  705. enable = true;
  706. pr_debug("In %s: setting port %d to %d\n", __func__, port, enable);
  707. v = enable ? 0xf : 0x0;
  708. /* Set EEE for 100, 500, 1000MBit and 10GBit */
  709. sw_w32_mask(0xf << 8, v << 8, rtl839x_mac_force_mode_ctrl(port));
  710. /* Set TX/RX EEE state */
  711. v = enable ? 0x3 : 0x0;
  712. sw_w32(v, RTL839X_EEE_CTRL(port));
  713. priv->ports[port].eee_enabled = enable;
  714. }
  715. /* Get EEE own capabilities and negotiation result */
  716. int rtl839x_eee_port_ability(struct rtl838x_switch_priv *priv, struct ethtool_eee *e, int port)
  717. {
  718. u64 link, a;
  719. if (port >= 48)
  720. return 0;
  721. link = rtl839x_get_port_reg_le(RTL839X_MAC_LINK_STS);
  722. if (!(link & BIT_ULL(port)))
  723. return 0;
  724. if (sw_r32(rtl839x_mac_force_mode_ctrl(port)) & BIT(8))
  725. e->advertised |= ADVERTISED_100baseT_Full;
  726. if (sw_r32(rtl839x_mac_force_mode_ctrl(port)) & BIT(10))
  727. e->advertised |= ADVERTISED_1000baseT_Full;
  728. a = rtl839x_get_port_reg_le(RTL839X_MAC_EEE_ABLTY);
  729. pr_info("Link partner: %016llx\n", a);
  730. if (rtl839x_get_port_reg_le(RTL839X_MAC_EEE_ABLTY) & BIT_ULL(port)) {
  731. e->lp_advertised = ADVERTISED_100baseT_Full;
  732. e->lp_advertised |= ADVERTISED_1000baseT_Full;
  733. return 1;
  734. }
  735. return 0;
  736. }
  737. static void rtl839x_init_eee(struct rtl838x_switch_priv *priv, bool enable)
  738. {
  739. pr_info("Setting up EEE, state: %d\n", enable);
  740. /* Set wake timer for TX and pause timer both to 0x21 */
  741. sw_w32_mask(0xff << 20| 0xff, 0x21 << 20| 0x21, RTL839X_EEE_TX_TIMER_GELITE_CTRL);
  742. /* Set pause wake timer for GIGA-EEE to 0x11 */
  743. sw_w32_mask(0xff << 20, 0x11 << 20, RTL839X_EEE_TX_TIMER_GIGA_CTRL);
  744. /* Set pause wake timer for 10GBit ports to 0x11 */
  745. sw_w32_mask(0xff << 20, 0x11 << 20, RTL839X_EEE_TX_TIMER_10G_CTRL);
  746. /* Setup EEE on all ports */
  747. for (int i = 0; i < priv->cpu_port; i++) {
  748. if (priv->ports[i].phy)
  749. rtl839x_port_eee_set(priv, i, enable);
  750. }
  751. priv->eee_enabled = enable;
  752. }
  753. static void rtl839x_pie_lookup_enable(struct rtl838x_switch_priv *priv, int index)
  754. {
  755. int block = index / PIE_BLOCK_SIZE;
  756. sw_w32_mask(0, BIT(block), RTL839X_ACL_BLK_LOOKUP_CTRL);
  757. }
  758. /* Delete a range of Packet Inspection Engine rules */
  759. static int rtl839x_pie_rule_del(struct rtl838x_switch_priv *priv, int index_from, int index_to)
  760. {
  761. u32 v = (index_from << 1)| (index_to << 13 ) | BIT(0);
  762. pr_debug("%s: from %d to %d\n", __func__, index_from, index_to);
  763. mutex_lock(&priv->reg_mutex);
  764. /* Write from-to and execute bit into control register */
  765. sw_w32(v, RTL839X_ACL_CLR_CTRL);
  766. /* Wait until command has completed */
  767. do {
  768. } while (sw_r32(RTL839X_ACL_CLR_CTRL) & BIT(0));
  769. mutex_unlock(&priv->reg_mutex);
  770. return 0;
  771. }
  772. /* Reads the intermediate representation of the templated match-fields of the
  773. * PIE rule in the pie_rule structure and fills in the raw data fields in the
  774. * raw register space r[].
  775. * The register space configuration size is identical for the RTL8380/90 and RTL9300,
  776. * however the RTL9310 has 2 more registers / fields and the physical field-ids are different
  777. * on all SoCs
  778. * On the RTL8390 the template mask registers are not word-aligned!
  779. */
  780. static void rtl839x_write_pie_templated(u32 r[], struct pie_rule *pr, enum template_field_id t[])
  781. {
  782. for (int i = 0; i < N_FIXED_FIELDS; i++) {
  783. enum template_field_id field_type = t[i];
  784. u16 data = 0, data_m = 0;
  785. switch (field_type) {
  786. case TEMPLATE_FIELD_SPM0:
  787. data = pr->spm;
  788. data_m = pr->spm_m;
  789. break;
  790. case TEMPLATE_FIELD_SPM1:
  791. data = pr->spm >> 16;
  792. data_m = pr->spm_m >> 16;
  793. break;
  794. case TEMPLATE_FIELD_SPM2:
  795. data = pr->spm >> 32;
  796. data_m = pr->spm_m >> 32;
  797. break;
  798. case TEMPLATE_FIELD_SPM3:
  799. data = pr->spm >> 48;
  800. data_m = pr->spm_m >> 48;
  801. break;
  802. case TEMPLATE_FIELD_OTAG:
  803. data = pr->otag;
  804. data_m = pr->otag_m;
  805. break;
  806. case TEMPLATE_FIELD_SMAC0:
  807. data = pr->smac[4];
  808. data = (data << 8) | pr->smac[5];
  809. data_m = pr->smac_m[4];
  810. data_m = (data_m << 8) | pr->smac_m[5];
  811. break;
  812. case TEMPLATE_FIELD_SMAC1:
  813. data = pr->smac[2];
  814. data = (data << 8) | pr->smac[3];
  815. data_m = pr->smac_m[2];
  816. data_m = (data_m << 8) | pr->smac_m[3];
  817. break;
  818. case TEMPLATE_FIELD_SMAC2:
  819. data = pr->smac[0];
  820. data = (data << 8) | pr->smac[1];
  821. data_m = pr->smac_m[0];
  822. data_m = (data_m << 8) | pr->smac_m[1];
  823. break;
  824. case TEMPLATE_FIELD_DMAC0:
  825. data = pr->dmac[4];
  826. data = (data << 8) | pr->dmac[5];
  827. data_m = pr->dmac_m[4];
  828. data_m = (data_m << 8) | pr->dmac_m[5];
  829. break;
  830. case TEMPLATE_FIELD_DMAC1:
  831. data = pr->dmac[2];
  832. data = (data << 8) | pr->dmac[3];
  833. data_m = pr->dmac_m[2];
  834. data_m = (data_m << 8) | pr->dmac_m[3];
  835. break;
  836. case TEMPLATE_FIELD_DMAC2:
  837. data = pr->dmac[0];
  838. data = (data << 8) | pr->dmac[1];
  839. data_m = pr->dmac_m[0];
  840. data_m = (data_m << 8) | pr->dmac_m[1];
  841. break;
  842. case TEMPLATE_FIELD_ETHERTYPE:
  843. data = pr->ethertype;
  844. data_m = pr->ethertype_m;
  845. break;
  846. case TEMPLATE_FIELD_ITAG:
  847. data = pr->itag;
  848. data_m = pr->itag_m;
  849. break;
  850. case TEMPLATE_FIELD_SIP0:
  851. if (pr->is_ipv6) {
  852. data = pr->sip6.s6_addr16[7];
  853. data_m = pr->sip6_m.s6_addr16[7];
  854. } else {
  855. data = pr->sip;
  856. data_m = pr->sip_m;
  857. }
  858. break;
  859. case TEMPLATE_FIELD_SIP1:
  860. if (pr->is_ipv6) {
  861. data = pr->sip6.s6_addr16[6];
  862. data_m = pr->sip6_m.s6_addr16[6];
  863. } else {
  864. data = pr->sip >> 16;
  865. data_m = pr->sip_m >> 16;
  866. }
  867. break;
  868. case TEMPLATE_FIELD_SIP2:
  869. case TEMPLATE_FIELD_SIP3:
  870. case TEMPLATE_FIELD_SIP4:
  871. case TEMPLATE_FIELD_SIP5:
  872. case TEMPLATE_FIELD_SIP6:
  873. case TEMPLATE_FIELD_SIP7:
  874. data = pr->sip6.s6_addr16[5 - (field_type - TEMPLATE_FIELD_SIP2)];
  875. data_m = pr->sip6_m.s6_addr16[5 - (field_type - TEMPLATE_FIELD_SIP2)];
  876. break;
  877. case TEMPLATE_FIELD_DIP0:
  878. if (pr->is_ipv6) {
  879. data = pr->dip6.s6_addr16[7];
  880. data_m = pr->dip6_m.s6_addr16[7];
  881. } else {
  882. data = pr->dip;
  883. data_m = pr->dip_m;
  884. }
  885. break;
  886. case TEMPLATE_FIELD_DIP1:
  887. if (pr->is_ipv6) {
  888. data = pr->dip6.s6_addr16[6];
  889. data_m = pr->dip6_m.s6_addr16[6];
  890. } else {
  891. data = pr->dip >> 16;
  892. data_m = pr->dip_m >> 16;
  893. }
  894. break;
  895. case TEMPLATE_FIELD_DIP2:
  896. case TEMPLATE_FIELD_DIP3:
  897. case TEMPLATE_FIELD_DIP4:
  898. case TEMPLATE_FIELD_DIP5:
  899. case TEMPLATE_FIELD_DIP6:
  900. case TEMPLATE_FIELD_DIP7:
  901. data = pr->dip6.s6_addr16[5 - (field_type - TEMPLATE_FIELD_DIP2)];
  902. data_m = pr->dip6_m.s6_addr16[5 - (field_type - TEMPLATE_FIELD_DIP2)];
  903. break;
  904. case TEMPLATE_FIELD_IP_TOS_PROTO:
  905. data = pr->tos_proto;
  906. data_m = pr->tos_proto_m;
  907. break;
  908. case TEMPLATE_FIELD_L4_SPORT:
  909. data = pr->sport;
  910. data_m = pr->sport_m;
  911. break;
  912. case TEMPLATE_FIELD_L4_DPORT:
  913. data = pr->dport;
  914. data_m = pr->dport_m;
  915. break;
  916. case TEMPLATE_FIELD_ICMP_IGMP:
  917. data = pr->icmp_igmp;
  918. data_m = pr->icmp_igmp_m;
  919. break;
  920. default:
  921. pr_info("%s: unknown field %d\n", __func__, field_type);
  922. }
  923. /* On the RTL8390, the mask fields are not word aligned! */
  924. if (!(i % 2)) {
  925. r[5 - i / 2] = data;
  926. r[12 - i / 2] |= ((u32)data_m << 8);
  927. } else {
  928. r[5 - i / 2] |= ((u32)data) << 16;
  929. r[12 - i / 2] |= ((u32)data_m) << 24;
  930. r[11 - i / 2] |= ((u32)data_m) >> 8;
  931. }
  932. }
  933. }
  934. /* Creates the intermediate representation of the templated match-fields of the
  935. * PIE rule in the pie_rule structure by reading the raw data fields in the
  936. * raw register space r[].
  937. * The register space configuration size is identical for the RTL8380/90 and RTL9300,
  938. * however the RTL9310 has 2 more registers / fields and the physical field-ids
  939. * On the RTL8390 the template mask registers are not word-aligned!
  940. */
  941. void rtl839x_read_pie_templated(u32 r[], struct pie_rule *pr, enum template_field_id t[])
  942. {
  943. for (int i = 0; i < N_FIXED_FIELDS; i++) {
  944. enum template_field_id field_type = t[i];
  945. u16 data, data_m;
  946. if (!(i % 2)) {
  947. data = r[5 - i / 2];
  948. data_m = r[12 - i / 2];
  949. } else {
  950. data = r[5 - i / 2] >> 16;
  951. data_m = r[12 - i / 2] >> 16;
  952. }
  953. switch (field_type) {
  954. case TEMPLATE_FIELD_SPM0:
  955. pr->spm = (pr->spn << 16) | data;
  956. pr->spm_m = (pr->spn << 16) | data_m;
  957. break;
  958. case TEMPLATE_FIELD_SPM1:
  959. pr->spm = data;
  960. pr->spm_m = data_m;
  961. break;
  962. case TEMPLATE_FIELD_OTAG:
  963. pr->otag = data;
  964. pr->otag_m = data_m;
  965. break;
  966. case TEMPLATE_FIELD_SMAC0:
  967. pr->smac[4] = data >> 8;
  968. pr->smac[5] = data;
  969. pr->smac_m[4] = data >> 8;
  970. pr->smac_m[5] = data;
  971. break;
  972. case TEMPLATE_FIELD_SMAC1:
  973. pr->smac[2] = data >> 8;
  974. pr->smac[3] = data;
  975. pr->smac_m[2] = data >> 8;
  976. pr->smac_m[3] = data;
  977. break;
  978. case TEMPLATE_FIELD_SMAC2:
  979. pr->smac[0] = data >> 8;
  980. pr->smac[1] = data;
  981. pr->smac_m[0] = data >> 8;
  982. pr->smac_m[1] = data;
  983. break;
  984. case TEMPLATE_FIELD_DMAC0:
  985. pr->dmac[4] = data >> 8;
  986. pr->dmac[5] = data;
  987. pr->dmac_m[4] = data >> 8;
  988. pr->dmac_m[5] = data;
  989. break;
  990. case TEMPLATE_FIELD_DMAC1:
  991. pr->dmac[2] = data >> 8;
  992. pr->dmac[3] = data;
  993. pr->dmac_m[2] = data >> 8;
  994. pr->dmac_m[3] = data;
  995. break;
  996. case TEMPLATE_FIELD_DMAC2:
  997. pr->dmac[0] = data >> 8;
  998. pr->dmac[1] = data;
  999. pr->dmac_m[0] = data >> 8;
  1000. pr->dmac_m[1] = data;
  1001. break;
  1002. case TEMPLATE_FIELD_ETHERTYPE:
  1003. pr->ethertype = data;
  1004. pr->ethertype_m = data_m;
  1005. break;
  1006. case TEMPLATE_FIELD_ITAG:
  1007. pr->itag = data;
  1008. pr->itag_m = data_m;
  1009. break;
  1010. case TEMPLATE_FIELD_SIP0:
  1011. pr->sip = data;
  1012. pr->sip_m = data_m;
  1013. break;
  1014. case TEMPLATE_FIELD_SIP1:
  1015. pr->sip = (pr->sip << 16) | data;
  1016. pr->sip_m = (pr->sip << 16) | data_m;
  1017. break;
  1018. case TEMPLATE_FIELD_SIP2:
  1019. pr->is_ipv6 = true;
  1020. /* Make use of limitiations on the position of the match values */
  1021. ipv6_addr_set(&pr->sip6, pr->sip, r[5 - i / 2],
  1022. r[4 - i / 2], r[3 - i / 2]);
  1023. ipv6_addr_set(&pr->sip6_m, pr->sip_m, r[5 - i / 2],
  1024. r[4 - i / 2], r[3 - i / 2]);
  1025. case TEMPLATE_FIELD_SIP3:
  1026. case TEMPLATE_FIELD_SIP4:
  1027. case TEMPLATE_FIELD_SIP5:
  1028. case TEMPLATE_FIELD_SIP6:
  1029. case TEMPLATE_FIELD_SIP7:
  1030. break;
  1031. case TEMPLATE_FIELD_DIP0:
  1032. pr->dip = data;
  1033. pr->dip_m = data_m;
  1034. break;
  1035. case TEMPLATE_FIELD_DIP1:
  1036. pr->dip = (pr->dip << 16) | data;
  1037. pr->dip_m = (pr->dip << 16) | data_m;
  1038. break;
  1039. case TEMPLATE_FIELD_DIP2:
  1040. pr->is_ipv6 = true;
  1041. ipv6_addr_set(&pr->dip6, pr->dip, r[5 - i / 2],
  1042. r[4 - i / 2], r[3 - i / 2]);
  1043. ipv6_addr_set(&pr->dip6_m, pr->dip_m, r[5 - i / 2],
  1044. r[4 - i / 2], r[3 - i / 2]);
  1045. case TEMPLATE_FIELD_DIP3:
  1046. case TEMPLATE_FIELD_DIP4:
  1047. case TEMPLATE_FIELD_DIP5:
  1048. case TEMPLATE_FIELD_DIP6:
  1049. case TEMPLATE_FIELD_DIP7:
  1050. break;
  1051. case TEMPLATE_FIELD_IP_TOS_PROTO:
  1052. pr->tos_proto = data;
  1053. pr->tos_proto_m = data_m;
  1054. break;
  1055. case TEMPLATE_FIELD_L4_SPORT:
  1056. pr->sport = data;
  1057. pr->sport_m = data_m;
  1058. break;
  1059. case TEMPLATE_FIELD_L4_DPORT:
  1060. pr->dport = data;
  1061. pr->dport_m = data_m;
  1062. break;
  1063. case TEMPLATE_FIELD_ICMP_IGMP:
  1064. pr->icmp_igmp = data;
  1065. pr->icmp_igmp_m = data_m;
  1066. break;
  1067. default:
  1068. pr_info("%s: unknown field %d\n", __func__, field_type);
  1069. }
  1070. }
  1071. }
  1072. static void rtl839x_read_pie_fixed_fields(u32 r[], struct pie_rule *pr)
  1073. {
  1074. pr->spmmask_fix = (r[6] >> 30) & 0x3;
  1075. pr->spn = (r[6] >> 24) & 0x3f;
  1076. pr->mgnt_vlan = (r[6] >> 23) & 1;
  1077. pr->dmac_hit_sw = (r[6] >> 22) & 1;
  1078. pr->not_first_frag = (r[6] >> 21) & 1;
  1079. pr->frame_type_l4 = (r[6] >> 18) & 7;
  1080. pr->frame_type = (r[6] >> 16) & 3;
  1081. pr->otag_fmt = (r[6] >> 15) & 1;
  1082. pr->itag_fmt = (r[6] >> 14) & 1;
  1083. pr->otag_exist = (r[6] >> 13) & 1;
  1084. pr->itag_exist = (r[6] >> 12) & 1;
  1085. pr->frame_type_l2 = (r[6] >> 10) & 3;
  1086. pr->tid = (r[6] >> 8) & 3;
  1087. pr->spmmask_fix_m = (r[12] >> 6) & 0x3;
  1088. pr->spn_m = r[12] & 0x3f;
  1089. pr->mgnt_vlan_m = (r[13] >> 31) & 1;
  1090. pr->dmac_hit_sw_m = (r[13] >> 30) & 1;
  1091. pr->not_first_frag_m = (r[13] >> 29) & 1;
  1092. pr->frame_type_l4_m = (r[13] >> 26) & 7;
  1093. pr->frame_type_m = (r[13] >> 24) & 3;
  1094. pr->otag_fmt_m = (r[13] >> 23) & 1;
  1095. pr->itag_fmt_m = (r[13] >> 22) & 1;
  1096. pr->otag_exist_m = (r[13] >> 21) & 1;
  1097. pr->itag_exist_m = (r[13] >> 20) & 1;
  1098. pr->frame_type_l2_m = (r[13] >> 18) & 3;
  1099. pr->tid_m = (r[13] >> 16) & 3;
  1100. pr->valid = r[13] & BIT(15);
  1101. pr->cond_not = r[13] & BIT(14);
  1102. pr->cond_and1 = r[13] & BIT(13);
  1103. pr->cond_and2 = r[13] & BIT(12);
  1104. }
  1105. static void rtl839x_write_pie_fixed_fields(u32 r[], struct pie_rule *pr)
  1106. {
  1107. r[6] = ((u32) (pr->spmmask_fix & 0x3)) << 30;
  1108. r[6] |= ((u32) (pr->spn & 0x3f)) << 24;
  1109. r[6] |= pr->mgnt_vlan ? BIT(23) : 0;
  1110. r[6] |= pr->dmac_hit_sw ? BIT(22) : 0;
  1111. r[6] |= pr->not_first_frag ? BIT(21) : 0;
  1112. r[6] |= ((u32) (pr->frame_type_l4 & 0x7)) << 18;
  1113. r[6] |= ((u32) (pr->frame_type & 0x3)) << 16;
  1114. r[6] |= pr->otag_fmt ? BIT(15) : 0;
  1115. r[6] |= pr->itag_fmt ? BIT(14) : 0;
  1116. r[6] |= pr->otag_exist ? BIT(13) : 0;
  1117. r[6] |= pr->itag_exist ? BIT(12) : 0;
  1118. r[6] |= ((u32) (pr->frame_type_l2 & 0x3)) << 10;
  1119. r[6] |= ((u32) (pr->tid & 0x3)) << 8;
  1120. r[12] |= ((u32) (pr->spmmask_fix_m & 0x3)) << 6;
  1121. r[12] |= (u32) (pr->spn_m & 0x3f);
  1122. r[13] |= pr->mgnt_vlan_m ? BIT(31) : 0;
  1123. r[13] |= pr->dmac_hit_sw_m ? BIT(30) : 0;
  1124. r[13] |= pr->not_first_frag_m ? BIT(29) : 0;
  1125. r[13] |= ((u32) (pr->frame_type_l4_m & 0x7)) << 26;
  1126. r[13] |= ((u32) (pr->frame_type_m & 0x3)) << 24;
  1127. r[13] |= pr->otag_fmt_m ? BIT(23) : 0;
  1128. r[13] |= pr->itag_fmt_m ? BIT(22) : 0;
  1129. r[13] |= pr->otag_exist_m ? BIT(21) : 0;
  1130. r[13] |= pr->itag_exist_m ? BIT(20) : 0;
  1131. r[13] |= ((u32) (pr->frame_type_l2_m & 0x3)) << 18;
  1132. r[13] |= ((u32) (pr->tid_m & 0x3)) << 16;
  1133. r[13] |= pr->valid ? BIT(15) : 0;
  1134. r[13] |= pr->cond_not ? BIT(14) : 0;
  1135. r[13] |= pr->cond_and1 ? BIT(13) : 0;
  1136. r[13] |= pr->cond_and2 ? BIT(12) : 0;
  1137. }
  1138. static void rtl839x_write_pie_action(u32 r[], struct pie_rule *pr)
  1139. {
  1140. if (pr->drop) {
  1141. r[13] |= 0x9; /* Set ACT_MASK_FWD & FWD_ACT = DROP */
  1142. r[13] |= BIT(3);
  1143. } else {
  1144. r[13] |= pr->fwd_sel ? BIT(3) : 0;
  1145. r[13] |= pr->fwd_act;
  1146. }
  1147. r[13] |= pr->bypass_sel ? BIT(11) : 0;
  1148. r[13] |= pr->mpls_sel ? BIT(10) : 0;
  1149. r[13] |= pr->nopri_sel ? BIT(9) : 0;
  1150. r[13] |= pr->ovid_sel ? BIT(8) : 0;
  1151. r[13] |= pr->ivid_sel ? BIT(7) : 0;
  1152. r[13] |= pr->meter_sel ? BIT(6) : 0;
  1153. r[13] |= pr->mir_sel ? BIT(5) : 0;
  1154. r[13] |= pr->log_sel ? BIT(4) : 0;
  1155. r[14] |= ((u32)(pr->fwd_data & 0x3fff)) << 18;
  1156. r[14] |= pr->log_octets ? BIT(17) : 0;
  1157. r[14] |= ((u32)(pr->log_data & 0x7ff)) << 4;
  1158. r[14] |= (pr->mir_data & 0x3) << 3;
  1159. r[14] |= ((u32)(pr->meter_data >> 7)) & 0x7;
  1160. r[15] |= (u32)(pr->meter_data) << 26;
  1161. r[15] |= ((u32)(pr->ivid_act) << 23) & 0x3;
  1162. r[15] |= ((u32)(pr->ivid_data) << 9) & 0xfff;
  1163. r[15] |= ((u32)(pr->ovid_act) << 6) & 0x3;
  1164. r[15] |= ((u32)(pr->ovid_data) >> 4) & 0xff;
  1165. r[16] |= ((u32)(pr->ovid_data) & 0xf) << 28;
  1166. r[16] |= ((u32)(pr->nopri_data) & 0x7) << 20;
  1167. r[16] |= ((u32)(pr->mpls_act) & 0x7) << 20;
  1168. r[16] |= ((u32)(pr->mpls_lib_idx) & 0x7) << 20;
  1169. r[16] |= pr->bypass_all ? BIT(9) : 0;
  1170. r[16] |= pr->bypass_igr_stp ? BIT(8) : 0;
  1171. r[16] |= pr->bypass_ibc_sc ? BIT(7) : 0;
  1172. }
  1173. static void rtl839x_read_pie_action(u32 r[], struct pie_rule *pr)
  1174. {
  1175. if (r[13] & BIT(3)) { /* ACT_MASK_FWD set, is it a drop? */
  1176. if ((r[14] & 0x7) == 1) {
  1177. pr->drop = true;
  1178. } else {
  1179. pr->fwd_sel = true;
  1180. pr->fwd_act = r[14] & 0x7;
  1181. }
  1182. }
  1183. pr->bypass_sel = r[13] & BIT(11);
  1184. pr->mpls_sel = r[13] & BIT(10);
  1185. pr->nopri_sel = r[13] & BIT(9);
  1186. pr->ovid_sel = r[13] & BIT(8);
  1187. pr->ivid_sel = r[13] & BIT(7);
  1188. pr->meter_sel = r[13] & BIT(6);
  1189. pr->mir_sel = r[13] & BIT(5);
  1190. pr->log_sel = r[13] & BIT(4);
  1191. /* TODO: Read in data fields */
  1192. pr->bypass_all = r[16] & BIT(9);
  1193. pr->bypass_igr_stp = r[16] & BIT(8);
  1194. pr->bypass_ibc_sc = r[16] & BIT(7);
  1195. }
  1196. void rtl839x_pie_rule_dump_raw(u32 r[])
  1197. {
  1198. pr_info("Raw IACL table entry:\n");
  1199. pr_info("Match : %08x %08x %08x %08x %08x %08x\n", r[0], r[1], r[2], r[3], r[4], r[5]);
  1200. pr_info("Fixed : %06x\n", r[6] >> 8);
  1201. pr_info("Match M: %08x %08x %08x %08x %08x %08x\n",
  1202. (r[6] << 24) | (r[7] >> 8), (r[7] << 24) | (r[8] >> 8), (r[8] << 24) | (r[9] >> 8),
  1203. (r[9] << 24) | (r[10] >> 8), (r[10] << 24) | (r[11] >> 8),
  1204. (r[11] << 24) | (r[12] >> 8));
  1205. pr_info("R[13]: %08x\n", r[13]);
  1206. pr_info("Fixed M: %06x\n", ((r[12] << 16) | (r[13] >> 16)) & 0xffffff);
  1207. pr_info("Valid / not / and1 / and2 : %1x\n", (r[13] >> 12) & 0xf);
  1208. pr_info("r 13-16: %08x %08x %08x %08x\n", r[13], r[14], r[15], r[16]);
  1209. }
  1210. void rtl839x_pie_rule_dump(struct pie_rule *pr)
  1211. {
  1212. pr_info("Drop: %d, fwd: %d, ovid: %d, ivid: %d, flt: %d, log: %d, rmk: %d, meter: %d tagst: %d, mir: %d, nopri: %d, cpupri: %d, otpid: %d, itpid: %d, shape: %d\n",
  1213. pr->drop, pr->fwd_sel, pr->ovid_sel, pr->ivid_sel, pr->flt_sel, pr->log_sel, pr->rmk_sel, pr->log_sel, pr->tagst_sel, pr->mir_sel, pr->nopri_sel,
  1214. pr->cpupri_sel, pr->otpid_sel, pr->itpid_sel, pr->shaper_sel);
  1215. if (pr->fwd_sel)
  1216. pr_info("FWD: %08x\n", pr->fwd_data);
  1217. pr_info("TID: %x, %x\n", pr->tid, pr->tid_m);
  1218. }
  1219. static int rtl839x_pie_rule_read(struct rtl838x_switch_priv *priv, int idx, struct pie_rule *pr)
  1220. {
  1221. /* Read IACL table (2) via register 0 */
  1222. struct table_reg *q = rtl_table_get(RTL8380_TBL_0, 2);
  1223. u32 r[17];
  1224. int block = idx / PIE_BLOCK_SIZE;
  1225. u32 t_select = sw_r32(RTL839X_ACL_BLK_TMPLTE_CTRL(block));
  1226. memset(pr, 0, sizeof(*pr));
  1227. rtl_table_read(q, idx);
  1228. for (int i = 0; i < 17; i++)
  1229. r[i] = sw_r32(rtl_table_data(q, i));
  1230. rtl_table_release(q);
  1231. rtl839x_read_pie_fixed_fields(r, pr);
  1232. if (!pr->valid)
  1233. return 0;
  1234. pr_debug("%s: template_selectors %08x, tid: %d\n", __func__, t_select, pr->tid);
  1235. rtl839x_pie_rule_dump_raw(r);
  1236. rtl839x_read_pie_templated(r, pr, fixed_templates[(t_select >> (pr->tid * 3)) & 0x7]);
  1237. rtl839x_read_pie_action(r, pr);
  1238. return 0;
  1239. }
  1240. static int rtl839x_pie_rule_write(struct rtl838x_switch_priv *priv, int idx, struct pie_rule *pr)
  1241. {
  1242. /* Access IACL table (2) via register 0 */
  1243. struct table_reg *q = rtl_table_get(RTL8390_TBL_0, 2);
  1244. u32 r[17];
  1245. int block = idx / PIE_BLOCK_SIZE;
  1246. u32 t_select = sw_r32(RTL839X_ACL_BLK_TMPLTE_CTRL(block));
  1247. pr_debug("%s: %d, t_select: %08x\n", __func__, idx, t_select);
  1248. for (int i = 0; i < 17; i++)
  1249. r[i] = 0;
  1250. if (!pr->valid) {
  1251. rtl_table_write(q, idx);
  1252. rtl_table_release(q);
  1253. return 0;
  1254. }
  1255. rtl839x_write_pie_fixed_fields(r, pr);
  1256. pr_debug("%s: template %d\n", __func__, (t_select >> (pr->tid * 3)) & 0x7);
  1257. rtl839x_write_pie_templated(r, pr, fixed_templates[(t_select >> (pr->tid * 3)) & 0x7]);
  1258. rtl839x_write_pie_action(r, pr);
  1259. /* rtl839x_pie_rule_dump_raw(r); */
  1260. for (int i = 0; i < 17; i++)
  1261. sw_w32(r[i], rtl_table_data(q, i));
  1262. rtl_table_write(q, idx);
  1263. rtl_table_release(q);
  1264. return 0;
  1265. }
  1266. static bool rtl839x_pie_templ_has(int t, enum template_field_id field_type)
  1267. {
  1268. for (int i = 0; i < N_FIXED_FIELDS; i++) {
  1269. enum template_field_id ft = fixed_templates[t][i];
  1270. if (field_type == ft)
  1271. return true;
  1272. }
  1273. return false;
  1274. }
  1275. static int rtl839x_pie_verify_template(struct rtl838x_switch_priv *priv,
  1276. struct pie_rule *pr, int t, int block)
  1277. {
  1278. int i;
  1279. if (!pr->is_ipv6 && pr->sip_m && !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_SIP0))
  1280. return -1;
  1281. if (!pr->is_ipv6 && pr->dip_m && !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_DIP0))
  1282. return -1;
  1283. if (pr->is_ipv6) {
  1284. if ((pr->sip6_m.s6_addr32[0] ||
  1285. pr->sip6_m.s6_addr32[1] ||
  1286. pr->sip6_m.s6_addr32[2] ||
  1287. pr->sip6_m.s6_addr32[3]) &&
  1288. !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_SIP2))
  1289. return -1;
  1290. if ((pr->dip6_m.s6_addr32[0] ||
  1291. pr->dip6_m.s6_addr32[1] ||
  1292. pr->dip6_m.s6_addr32[2] ||
  1293. pr->dip6_m.s6_addr32[3]) &&
  1294. !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_DIP2))
  1295. return -1;
  1296. }
  1297. if (ether_addr_to_u64(pr->smac) && !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_SMAC0))
  1298. return -1;
  1299. if (ether_addr_to_u64(pr->dmac) && !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_DMAC0))
  1300. return -1;
  1301. /* TODO: Check more */
  1302. i = find_first_zero_bit(&priv->pie_use_bm[block * 4], PIE_BLOCK_SIZE);
  1303. if (i >= PIE_BLOCK_SIZE)
  1304. return -1;
  1305. return i + PIE_BLOCK_SIZE * block;
  1306. }
  1307. static int rtl839x_pie_rule_add(struct rtl838x_switch_priv *priv, struct pie_rule *pr)
  1308. {
  1309. int idx, block, j, t;
  1310. int min_block = 0;
  1311. int max_block = priv->n_pie_blocks / 2;
  1312. if (pr->is_egress) {
  1313. min_block = max_block;
  1314. max_block = priv->n_pie_blocks;
  1315. }
  1316. mutex_lock(&priv->pie_mutex);
  1317. for (block = min_block; block < max_block; block++) {
  1318. for (j = 0; j < 2; j++) {
  1319. t = (sw_r32(RTL839X_ACL_BLK_TMPLTE_CTRL(block)) >> (j * 3)) & 0x7;
  1320. idx = rtl839x_pie_verify_template(priv, pr, t, block);
  1321. if (idx >= 0)
  1322. break;
  1323. }
  1324. if (j < 2)
  1325. break;
  1326. }
  1327. if (block >= priv->n_pie_blocks) {
  1328. mutex_unlock(&priv->pie_mutex);
  1329. return -EOPNOTSUPP;
  1330. }
  1331. set_bit(idx, priv->pie_use_bm);
  1332. pr->valid = true;
  1333. pr->tid = j; /* Mapped to template number */
  1334. pr->tid_m = 0x3;
  1335. pr->id = idx;
  1336. rtl839x_pie_lookup_enable(priv, idx);
  1337. rtl839x_pie_rule_write(priv, idx, pr);
  1338. mutex_unlock(&priv->pie_mutex);
  1339. return 0;
  1340. }
  1341. static void rtl839x_pie_rule_rm(struct rtl838x_switch_priv *priv, struct pie_rule *pr)
  1342. {
  1343. int idx = pr->id;
  1344. rtl839x_pie_rule_del(priv, idx, idx);
  1345. clear_bit(idx, priv->pie_use_bm);
  1346. }
  1347. static void rtl839x_pie_init(struct rtl838x_switch_priv *priv)
  1348. {
  1349. u32 template_selectors;
  1350. mutex_init(&priv->pie_mutex);
  1351. /* Power on all PIE blocks */
  1352. for (int i = 0; i < priv->n_pie_blocks; i++)
  1353. sw_w32_mask(0, BIT(i), RTL839X_PS_ACL_PWR_CTRL);
  1354. /* Set ingress and egress ACL blocks to 50/50: first Egress block is 9 */
  1355. sw_w32_mask(0x1f, 9, RTL839X_ACL_CTRL); /* Writes 9 to cutline field */
  1356. /* Include IPG in metering */
  1357. sw_w32(1, RTL839X_METER_GLB_CTRL);
  1358. /* Delete all present rules */
  1359. rtl839x_pie_rule_del(priv, 0, priv->n_pie_blocks * PIE_BLOCK_SIZE - 1);
  1360. /* Enable predefined templates 0, 1 for blocks 0-2 */
  1361. template_selectors = 0 | (1 << 3);
  1362. for (int i = 0; i < 3; i++)
  1363. sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
  1364. /* Enable predefined templates 2, 3 for blocks 3-5 */
  1365. template_selectors = 2 | (3 << 3);
  1366. for (int i = 3; i < 6; i++)
  1367. sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
  1368. /* Enable predefined templates 1, 4 for blocks 6-8 */
  1369. template_selectors = 2 | (3 << 3);
  1370. for (int i = 6; i < 9; i++)
  1371. sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
  1372. /* Enable predefined templates 0, 1 for blocks 9-11 */
  1373. template_selectors = 0 | (1 << 3);
  1374. for (int i = 9; i < 12; i++)
  1375. sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
  1376. /* Enable predefined templates 2, 3 for blocks 12-14 */
  1377. template_selectors = 2 | (3 << 3);
  1378. for (int i = 12; i < 15; i++)
  1379. sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
  1380. /* Enable predefined templates 1, 4 for blocks 15-17 */
  1381. template_selectors = 2 | (3 << 3);
  1382. for (int i = 15; i < 18; i++)
  1383. sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
  1384. }
  1385. static u32 rtl839x_packet_cntr_read(int counter)
  1386. {
  1387. u32 v;
  1388. /* Read LOG table (4) via register RTL8390_TBL_0 */
  1389. struct table_reg *r = rtl_table_get(RTL8390_TBL_0, 4);
  1390. pr_debug("In %s, id %d\n", __func__, counter);
  1391. rtl_table_read(r, counter / 2);
  1392. /* The table has a size of 2 registers */
  1393. if (counter % 2)
  1394. v = sw_r32(rtl_table_data(r, 0));
  1395. else
  1396. v = sw_r32(rtl_table_data(r, 1));
  1397. rtl_table_release(r);
  1398. return v;
  1399. }
  1400. static void rtl839x_packet_cntr_clear(int counter)
  1401. {
  1402. /* Access LOG table (4) via register RTL8390_TBL_0 */
  1403. struct table_reg *r = rtl_table_get(RTL8390_TBL_0, 4);
  1404. pr_debug("In %s, id %d\n", __func__, counter);
  1405. /* The table has a size of 2 registers */
  1406. if (counter % 2)
  1407. sw_w32(0, rtl_table_data(r, 0));
  1408. else
  1409. sw_w32(0, rtl_table_data(r, 1));
  1410. rtl_table_write(r, counter / 2);
  1411. rtl_table_release(r);
  1412. }
  1413. static void rtl839x_route_read(int idx, struct rtl83xx_route *rt)
  1414. {
  1415. u64 v;
  1416. /* Read ROUTING table (2) via register RTL8390_TBL_1 */
  1417. struct table_reg *r = rtl_table_get(RTL8390_TBL_1, 2);
  1418. pr_debug("In %s\n", __func__);
  1419. rtl_table_read(r, idx);
  1420. /* The table has a size of 2 registers */
  1421. v = sw_r32(rtl_table_data(r, 0));
  1422. v <<= 32;
  1423. v |= sw_r32(rtl_table_data(r, 1));
  1424. rt->switch_mac_id = (v >> 12) & 0xf;
  1425. rt->nh.gw = v >> 16;
  1426. rtl_table_release(r);
  1427. }
  1428. static void rtl839x_route_write(int idx, struct rtl83xx_route *rt)
  1429. {
  1430. u32 v;
  1431. /* Read ROUTING table (2) via register RTL8390_TBL_1 */
  1432. struct table_reg *r = rtl_table_get(RTL8390_TBL_1, 2);
  1433. pr_debug("In %s\n", __func__);
  1434. sw_w32(rt->nh.gw >> 16, rtl_table_data(r, 0));
  1435. v = rt->nh.gw << 16;
  1436. v |= rt->switch_mac_id << 12;
  1437. sw_w32(v, rtl_table_data(r, 1));
  1438. rtl_table_write(r, idx);
  1439. rtl_table_release(r);
  1440. }
  1441. /* Configure the switch's own MAC addresses used when routing packets */
  1442. static void rtl839x_setup_port_macs(struct rtl838x_switch_priv *priv)
  1443. {
  1444. struct net_device *dev;
  1445. u64 mac;
  1446. pr_debug("%s: got port %08x\n", __func__, (u32)priv->ports[priv->cpu_port].dp);
  1447. dev = priv->ports[priv->cpu_port].dp->slave;
  1448. mac = ether_addr_to_u64(dev->dev_addr);
  1449. for (int i = 0; i < 15; i++) {
  1450. mac++; /* BUG: VRRP for testing */
  1451. sw_w32(mac >> 32, RTL839X_ROUTING_SA_CTRL + i * 8);
  1452. sw_w32(mac, RTL839X_ROUTING_SA_CTRL + i * 8 + 4);
  1453. }
  1454. }
  1455. int rtl839x_l3_setup(struct rtl838x_switch_priv *priv)
  1456. {
  1457. rtl839x_setup_port_macs(priv);
  1458. return 0;
  1459. }
  1460. void rtl839x_vlan_port_keep_tag_set(int port, bool keep_outer, bool keep_inner)
  1461. {
  1462. sw_w32(FIELD_PREP(RTL839X_VLAN_PORT_TAG_STS_CTRL_OTAG_STS_MASK,
  1463. keep_outer ? RTL839X_VLAN_PORT_TAG_STS_TAGGED : RTL839X_VLAN_PORT_TAG_STS_UNTAG) |
  1464. FIELD_PREP(RTL839X_VLAN_PORT_TAG_STS_CTRL_ITAG_STS_MASK,
  1465. keep_inner ? RTL839X_VLAN_PORT_TAG_STS_TAGGED : RTL839X_VLAN_PORT_TAG_STS_UNTAG),
  1466. RTL839X_VLAN_PORT_TAG_STS_CTRL(port));
  1467. }
  1468. void rtl839x_vlan_port_pvidmode_set(int port, enum pbvlan_type type, enum pbvlan_mode mode)
  1469. {
  1470. if (type == PBVLAN_TYPE_INNER)
  1471. sw_w32_mask(0x3, mode, RTL839X_VLAN_PORT_PB_VLAN + (port << 2));
  1472. else
  1473. sw_w32_mask(0x3 << 14, mode << 14, RTL839X_VLAN_PORT_PB_VLAN + (port << 2));
  1474. }
  1475. void rtl839x_vlan_port_pvid_set(int port, enum pbvlan_type type, int pvid)
  1476. {
  1477. if (type == PBVLAN_TYPE_INNER)
  1478. sw_w32_mask(0xfff << 2, pvid << 2, RTL839X_VLAN_PORT_PB_VLAN + (port << 2));
  1479. else
  1480. sw_w32_mask(0xfff << 16, pvid << 16, RTL839X_VLAN_PORT_PB_VLAN + (port << 2));
  1481. }
  1482. static int rtl839x_set_ageing_time(unsigned long msec)
  1483. {
  1484. int t = sw_r32(RTL839X_L2_CTRL_1);
  1485. t &= 0x1FFFFF;
  1486. t = t * 3 / 5; /* Aging time in seconds. 0: L2 aging disabled */
  1487. pr_debug("L2 AGING time: %d sec\n", t);
  1488. t = (msec * 5 + 2000) / 3000;
  1489. t = t > 0x1FFFFF ? 0x1FFFFF : t;
  1490. sw_w32_mask(0x1FFFFF, t, RTL839X_L2_CTRL_1);
  1491. pr_debug("Dynamic aging for ports: %x\n", sw_r32(RTL839X_L2_PORT_AGING_OUT));
  1492. return 0;
  1493. }
  1494. static void rtl839x_set_igr_filter(int port, enum igr_filter state)
  1495. {
  1496. sw_w32_mask(0x3 << ((port & 0xf)<<1), state << ((port & 0xf)<<1),
  1497. RTL839X_VLAN_PORT_IGR_FLTR + (((port >> 4) << 2)));
  1498. }
  1499. static void rtl839x_set_egr_filter(int port, enum egr_filter state)
  1500. {
  1501. sw_w32_mask(0x1 << (port % 0x20), state << (port % 0x20),
  1502. RTL839X_VLAN_PORT_EGR_FLTR + (((port >> 5) << 2)));
  1503. }
  1504. void rtl839x_set_distribution_algorithm(int group, int algoidx, u32 algomsk)
  1505. {
  1506. sw_w32_mask(3 << ((group & 0xf) << 1), algoidx << ((group & 0xf) << 1),
  1507. RTL839X_TRK_HASH_IDX_CTRL + ((group >> 4) << 2));
  1508. sw_w32(algomsk, RTL839X_TRK_HASH_CTRL + (algoidx << 2));
  1509. }
  1510. void rtl839x_set_receive_management_action(int port, rma_ctrl_t type, action_type_t action)
  1511. {
  1512. switch(type) {
  1513. case BPDU:
  1514. sw_w32_mask(3 << ((port & 0xf) << 1), (action & 0x3) << ((port & 0xf) << 1),
  1515. RTL839X_RMA_BPDU_CTRL + ((port >> 4) << 2));
  1516. break;
  1517. case PTP:
  1518. sw_w32_mask(3 << ((port & 0xf) << 1), (action & 0x3) << ((port & 0xf) << 1),
  1519. RTL839X_RMA_PTP_CTRL + ((port >> 4) << 2));
  1520. break;
  1521. case LLTP:
  1522. sw_w32_mask(3 << ((port & 0xf) << 1), (action & 0x3) << ((port & 0xf) << 1),
  1523. RTL839X_RMA_LLTP_CTRL + ((port >> 4) << 2));
  1524. break;
  1525. default:
  1526. break;
  1527. }
  1528. }
  1529. const struct rtl838x_reg rtl839x_reg = {
  1530. .mask_port_reg_be = rtl839x_mask_port_reg_be,
  1531. .set_port_reg_be = rtl839x_set_port_reg_be,
  1532. .get_port_reg_be = rtl839x_get_port_reg_be,
  1533. .mask_port_reg_le = rtl839x_mask_port_reg_le,
  1534. .set_port_reg_le = rtl839x_set_port_reg_le,
  1535. .get_port_reg_le = rtl839x_get_port_reg_le,
  1536. .stat_port_rst = RTL839X_STAT_PORT_RST,
  1537. .stat_rst = RTL839X_STAT_RST,
  1538. .stat_port_std_mib = RTL839X_STAT_PORT_STD_MIB,
  1539. .traffic_enable = rtl839x_traffic_enable,
  1540. .traffic_disable = rtl839x_traffic_disable,
  1541. .traffic_get = rtl839x_traffic_get,
  1542. .traffic_set = rtl839x_traffic_set,
  1543. .port_iso_ctrl = rtl839x_port_iso_ctrl,
  1544. .l2_ctrl_0 = RTL839X_L2_CTRL_0,
  1545. .l2_ctrl_1 = RTL839X_L2_CTRL_1,
  1546. .l2_port_aging_out = RTL839X_L2_PORT_AGING_OUT,
  1547. .set_ageing_time = rtl839x_set_ageing_time,
  1548. .smi_poll_ctrl = RTL839X_SMI_PORT_POLLING_CTRL,
  1549. .l2_tbl_flush_ctrl = RTL839X_L2_TBL_FLUSH_CTRL,
  1550. .exec_tbl0_cmd = rtl839x_exec_tbl0_cmd,
  1551. .exec_tbl1_cmd = rtl839x_exec_tbl1_cmd,
  1552. .tbl_access_data_0 = rtl839x_tbl_access_data_0,
  1553. .isr_glb_src = RTL839X_ISR_GLB_SRC,
  1554. .isr_port_link_sts_chg = RTL839X_ISR_PORT_LINK_STS_CHG,
  1555. .imr_port_link_sts_chg = RTL839X_IMR_PORT_LINK_STS_CHG,
  1556. .imr_glb = RTL839X_IMR_GLB,
  1557. .vlan_tables_read = rtl839x_vlan_tables_read,
  1558. .vlan_set_tagged = rtl839x_vlan_set_tagged,
  1559. .vlan_set_untagged = rtl839x_vlan_set_untagged,
  1560. .vlan_profile_dump = rtl839x_vlan_profile_dump,
  1561. .vlan_profile_setup = rtl839x_vlan_profile_setup,
  1562. .vlan_fwd_on_inner = rtl839x_vlan_fwd_on_inner,
  1563. .vlan_port_keep_tag_set = rtl839x_vlan_port_keep_tag_set,
  1564. .vlan_port_pvidmode_set = rtl839x_vlan_port_pvidmode_set,
  1565. .vlan_port_pvid_set = rtl839x_vlan_port_pvid_set,
  1566. .set_vlan_igr_filter = rtl839x_set_igr_filter,
  1567. .set_vlan_egr_filter = rtl839x_set_egr_filter,
  1568. .enable_learning = rtl839x_enable_learning,
  1569. .enable_flood = rtl839x_enable_flood,
  1570. .enable_mcast_flood = rtl839x_enable_mcast_flood,
  1571. .enable_bcast_flood = rtl839x_enable_bcast_flood,
  1572. .set_static_move_action = rtl839x_set_static_move_action,
  1573. .stp_get = rtl839x_stp_get,
  1574. .stp_set = rtl839x_stp_set,
  1575. .mac_force_mode_ctrl = rtl839x_mac_force_mode_ctrl,
  1576. .mac_port_ctrl = rtl839x_mac_port_ctrl,
  1577. .l2_port_new_salrn = rtl839x_l2_port_new_salrn,
  1578. .l2_port_new_sa_fwd = rtl839x_l2_port_new_sa_fwd,
  1579. .mir_ctrl = RTL839X_MIR_CTRL,
  1580. .mir_dpm = RTL839X_MIR_DPM_CTRL,
  1581. .mir_spm = RTL839X_MIR_SPM_CTRL,
  1582. .mac_link_sts = RTL839X_MAC_LINK_STS,
  1583. .mac_link_dup_sts = RTL839X_MAC_LINK_DUP_STS,
  1584. .mac_link_spd_sts = rtl839x_mac_link_spd_sts,
  1585. .mac_rx_pause_sts = RTL839X_MAC_RX_PAUSE_STS,
  1586. .mac_tx_pause_sts = RTL839X_MAC_TX_PAUSE_STS,
  1587. .read_l2_entry_using_hash = rtl839x_read_l2_entry_using_hash,
  1588. .write_l2_entry_using_hash = rtl839x_write_l2_entry_using_hash,
  1589. .read_cam = rtl839x_read_cam,
  1590. .write_cam = rtl839x_write_cam,
  1591. .trk_mbr_ctr = rtl839x_trk_mbr_ctr,
  1592. .rma_bpdu_fld_pmask = RTL839X_RMA_BPDU_FLD_PMSK,
  1593. .spcl_trap_eapol_ctrl = RTL839X_SPCL_TRAP_EAPOL_CTRL,
  1594. .init_eee = rtl839x_init_eee,
  1595. .port_eee_set = rtl839x_port_eee_set,
  1596. .eee_port_ability = rtl839x_eee_port_ability,
  1597. .l2_hash_seed = rtl839x_l2_hash_seed,
  1598. .l2_hash_key = rtl839x_l2_hash_key,
  1599. .read_mcast_pmask = rtl839x_read_mcast_pmask,
  1600. .write_mcast_pmask = rtl839x_write_mcast_pmask,
  1601. .pie_init = rtl839x_pie_init,
  1602. .pie_rule_read = rtl839x_pie_rule_read,
  1603. .pie_rule_write = rtl839x_pie_rule_write,
  1604. .pie_rule_add = rtl839x_pie_rule_add,
  1605. .pie_rule_rm = rtl839x_pie_rule_rm,
  1606. .l2_learning_setup = rtl839x_l2_learning_setup,
  1607. .packet_cntr_read = rtl839x_packet_cntr_read,
  1608. .packet_cntr_clear = rtl839x_packet_cntr_clear,
  1609. .route_read = rtl839x_route_read,
  1610. .route_write = rtl839x_route_write,
  1611. .l3_setup = rtl839x_l3_setup,
  1612. .set_distribution_algorithm = rtl839x_set_distribution_algorithm,
  1613. .set_receive_management_action = rtl839x_set_receive_management_action,
  1614. };