diff options
Diffstat (limited to 'target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl930x.c')
| -rw-r--r-- | target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl930x.c | 2560 |
1 files changed, 0 insertions, 2560 deletions
diff --git a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl930x.c b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl930x.c deleted file mode 100644 index 5dde8353e2..0000000000 --- a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl930x.c +++ /dev/null @@ -1,2560 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only - -#include <asm/mach-rtl838x/mach-rtl83xx.h> -#include <linux/inetdevice.h> - -#include "rtl83xx.h" - -#define RTL930X_VLAN_PORT_TAG_STS_INTERNAL 0x0 -#define RTL930X_VLAN_PORT_TAG_STS_UNTAG 0x1 -#define RTL930X_VLAN_PORT_TAG_STS_TAGGED 0x2 -#define RTL930X_VLAN_PORT_TAG_STS_PRIORITY_TAGGED 0x3 - -#define RTL930X_VLAN_PORT_TAG_STS_CTRL_BASE 0xCE24 -/* port 0-28 */ -#define RTL930X_VLAN_PORT_TAG_STS_CTRL(port) \ - RTL930X_VLAN_PORT_TAG_STS_CTRL_BASE + (port << 2) -#define RTL930X_VLAN_PORT_TAG_STS_CTRL_EGR_OTAG_STS_MASK GENMASK(7,6) -#define RTL930X_VLAN_PORT_TAG_STS_CTRL_EGR_ITAG_STS_MASK GENMASK(5,4) -#define RTL930X_VLAN_PORT_TAG_STS_CTRL_EGR_P_OTAG_KEEP_MASK GENMASK(3,3) -#define RTL930X_VLAN_PORT_TAG_STS_CTRL_EGR_P_ITAG_KEEP_MASK GENMASK(2,2) -#define RTL930X_VLAN_PORT_TAG_STS_CTRL_IGR_P_OTAG_KEEP_MASK GENMASK(1,1) -#define RTL930X_VLAN_PORT_TAG_STS_CTRL_IGR_P_ITAG_KEEP_MASK GENMASK(0,0) - -extern struct mutex smi_lock; -extern struct rtl83xx_soc_info soc_info; - -/* Definition of the RTL930X-specific template field IDs as used in the PIE */ -enum template_field_id { - TEMPLATE_FIELD_SPM0 = 0, // Source portmask ports 0-15 - TEMPLATE_FIELD_SPM1 = 1, // Source portmask ports 16-31 - TEMPLATE_FIELD_DMAC0 = 2, // Destination MAC [15:0] - TEMPLATE_FIELD_DMAC1 = 3, // Destination MAC [31:16] - TEMPLATE_FIELD_DMAC2 = 4, // Destination MAC [47:32] - TEMPLATE_FIELD_SMAC0 = 5, // Source MAC [15:0] - TEMPLATE_FIELD_SMAC1 = 6, // Source MAC [31:16] - TEMPLATE_FIELD_SMAC2 = 7, // Source MAC [47:32] - TEMPLATE_FIELD_ETHERTYPE = 8, // Ethernet frame type field - TEMPLATE_FIELD_OTAG = 9, - TEMPLATE_FIELD_ITAG = 10, - TEMPLATE_FIELD_SIP0 = 11, - TEMPLATE_FIELD_SIP1 = 12, - TEMPLATE_FIELD_DIP0 = 13, - TEMPLATE_FIELD_DIP1 = 14, - TEMPLATE_FIELD_IP_TOS_PROTO = 15, - TEMPLATE_FIELD_L4_SPORT = 16, - TEMPLATE_FIELD_L4_DPORT = 17, - TEMPLATE_FIELD_L34_HEADER = 18, - TEMPLATE_FIELD_TCP_INFO = 19, - TEMPLATE_FIELD_FIELD_SELECTOR_VALID = 20, - TEMPLATE_FIELD_FIELD_SELECTOR_0 = 21, - TEMPLATE_FIELD_FIELD_SELECTOR_1 = 22, - TEMPLATE_FIELD_FIELD_SELECTOR_2 = 23, - TEMPLATE_FIELD_FIELD_SELECTOR_3 = 24, - TEMPLATE_FIELD_FIELD_SELECTOR_4 = 25, - TEMPLATE_FIELD_FIELD_SELECTOR_5 = 26, - TEMPLATE_FIELD_SIP2 = 27, - TEMPLATE_FIELD_SIP3 = 28, - TEMPLATE_FIELD_SIP4 = 29, - TEMPLATE_FIELD_SIP5 = 30, - TEMPLATE_FIELD_SIP6 = 31, - TEMPLATE_FIELD_SIP7 = 32, - TEMPLATE_FIELD_DIP2 = 33, - TEMPLATE_FIELD_DIP3 = 34, - TEMPLATE_FIELD_DIP4 = 35, - TEMPLATE_FIELD_DIP5 = 36, - TEMPLATE_FIELD_DIP6 = 37, - TEMPLATE_FIELD_DIP7 = 38, - TEMPLATE_FIELD_PKT_INFO = 39, - TEMPLATE_FIELD_FLOW_LABEL = 40, - TEMPLATE_FIELD_DSAP_SSAP = 41, - TEMPLATE_FIELD_SNAP_OUI = 42, - TEMPLATE_FIELD_FWD_VID = 43, - TEMPLATE_FIELD_RANGE_CHK = 44, - TEMPLATE_FIELD_VLAN_GMSK = 45, // VLAN Group Mask/IP range check - TEMPLATE_FIELD_DLP = 46, - TEMPLATE_FIELD_META_DATA = 47, - TEMPLATE_FIELD_SRC_FWD_VID = 48, - TEMPLATE_FIELD_SLP = 49, -}; - -/* The meaning of TEMPLATE_FIELD_VLAN depends on phase and the configuration in - * RTL930X_PIE_CTRL. We use always the same definition and map to the inner VLAN tag: - */ -#define TEMPLATE_FIELD_VLAN TEMPLATE_FIELD_ITAG - -// Number of fixed templates predefined in the RTL9300 SoC -#define N_FIXED_TEMPLATES 5 -// RTL9300 specific predefined templates -static enum template_field_id fixed_templates[N_FIXED_TEMPLATES][N_FIXED_FIELDS] = -{ - { - TEMPLATE_FIELD_DMAC0, TEMPLATE_FIELD_DMAC1, TEMPLATE_FIELD_DMAC2, - TEMPLATE_FIELD_SMAC0, TEMPLATE_FIELD_SMAC1, TEMPLATE_FIELD_SMAC2, - TEMPLATE_FIELD_VLAN, TEMPLATE_FIELD_IP_TOS_PROTO, TEMPLATE_FIELD_DSAP_SSAP, - TEMPLATE_FIELD_ETHERTYPE, TEMPLATE_FIELD_SPM0, TEMPLATE_FIELD_SPM1 - }, { - TEMPLATE_FIELD_SIP0, TEMPLATE_FIELD_SIP1, TEMPLATE_FIELD_DIP0, - TEMPLATE_FIELD_DIP1, TEMPLATE_FIELD_IP_TOS_PROTO, TEMPLATE_FIELD_TCP_INFO, - TEMPLATE_FIELD_L4_SPORT, TEMPLATE_FIELD_L4_DPORT, TEMPLATE_FIELD_VLAN, - TEMPLATE_FIELD_RANGE_CHK, TEMPLATE_FIELD_SPM0, TEMPLATE_FIELD_SPM1 - }, { - TEMPLATE_FIELD_DMAC0, TEMPLATE_FIELD_DMAC1, TEMPLATE_FIELD_DMAC2, - TEMPLATE_FIELD_VLAN, TEMPLATE_FIELD_ETHERTYPE, TEMPLATE_FIELD_IP_TOS_PROTO, - TEMPLATE_FIELD_SIP0, TEMPLATE_FIELD_SIP1, TEMPLATE_FIELD_DIP0, - TEMPLATE_FIELD_DIP1, TEMPLATE_FIELD_L4_SPORT, TEMPLATE_FIELD_L4_DPORT - }, { - TEMPLATE_FIELD_DIP0, TEMPLATE_FIELD_DIP1, TEMPLATE_FIELD_DIP2, - TEMPLATE_FIELD_DIP3, TEMPLATE_FIELD_DIP4, TEMPLATE_FIELD_DIP5, - TEMPLATE_FIELD_DIP6, TEMPLATE_FIELD_DIP7, TEMPLATE_FIELD_IP_TOS_PROTO, - TEMPLATE_FIELD_TCP_INFO, TEMPLATE_FIELD_L4_SPORT, TEMPLATE_FIELD_L4_DPORT - }, { - TEMPLATE_FIELD_SIP0, TEMPLATE_FIELD_SIP1, TEMPLATE_FIELD_SIP2, - TEMPLATE_FIELD_SIP3, TEMPLATE_FIELD_SIP4, TEMPLATE_FIELD_SIP5, - TEMPLATE_FIELD_SIP6, TEMPLATE_FIELD_SIP7, TEMPLATE_FIELD_VLAN, - TEMPLATE_FIELD_RANGE_CHK, TEMPLATE_FIELD_SPM1, TEMPLATE_FIELD_SPM1 - }, -}; - -void rtl930x_print_matrix(void) -{ - int i; - struct table_reg *r = rtl_table_get(RTL9300_TBL_0, 6); - - for (i = 0; i < 29; i++) { - rtl_table_read(r, i); - pr_debug("> %08x\n", sw_r32(rtl_table_data(r, 0))); - } - rtl_table_release(r); -} - -inline void rtl930x_exec_tbl0_cmd(u32 cmd) -{ - sw_w32(cmd, RTL930X_TBL_ACCESS_CTRL_0); - do { } while (sw_r32(RTL930X_TBL_ACCESS_CTRL_0) & (1 << 17)); -} - -inline void rtl930x_exec_tbl1_cmd(u32 cmd) -{ - sw_w32(cmd, RTL930X_TBL_ACCESS_CTRL_1); - do { } while (sw_r32(RTL930X_TBL_ACCESS_CTRL_1) & (1 << 17)); -} - -inline int rtl930x_tbl_access_data_0(int i) -{ - return RTL930X_TBL_ACCESS_DATA_0(i); -} - -static inline int rtl930x_l2_port_new_salrn(int p) -{ - return RTL930X_L2_PORT_SALRN(p); -} - -static inline int rtl930x_l2_port_new_sa_fwd(int p) -{ - // TODO: The definition of the fields changed, because of the master-cpu in a stack - return RTL930X_L2_PORT_NEW_SA_FWD(p); -} - -inline static int rtl930x_trk_mbr_ctr(int group) -{ - return RTL930X_TRK_MBR_CTRL + (group << 2); -} - -static void rtl930x_vlan_tables_read(u32 vlan, struct rtl838x_vlan_info *info) -{ - u32 v, w; - // Read VLAN table (1) via register 0 - struct table_reg *r = rtl_table_get(RTL9300_TBL_0, 1); - - rtl_table_read(r, vlan); - v = sw_r32(rtl_table_data(r, 0)); - w = sw_r32(rtl_table_data(r, 1)); - pr_debug("VLAN_READ %d: %08x %08x\n", vlan, v, w); - rtl_table_release(r); - - info->tagged_ports = v >> 3; - info->profile_id = (w >> 24) & 7; - info->hash_mc_fid = !!(w & BIT(27)); - info->hash_uc_fid = !!(w & BIT(28)); - info->fid = ((v & 0x7) << 3) | ((w >> 29) & 0x7); - - // Read UNTAG table via table register 2 - r = rtl_table_get(RTL9300_TBL_2, 0); - rtl_table_read(r, vlan); - v = sw_r32(rtl_table_data(r, 0)); - rtl_table_release(r); - - info->untagged_ports = v >> 3; -} - -static void rtl930x_vlan_set_tagged(u32 vlan, struct rtl838x_vlan_info *info) -{ - u32 v, w; - // Access VLAN table (1) via register 0 - struct table_reg *r = rtl_table_get(RTL9300_TBL_0, 1); - - v = info->tagged_ports << 3; - v |= ((u32)info->fid) >> 3; - - w = ((u32)info->fid) << 29; - w |= info->hash_mc_fid ? BIT(27) : 0; - w |= info->hash_uc_fid ? BIT(28) : 0; - w |= info->profile_id << 24; - - sw_w32(v, rtl_table_data(r, 0)); - sw_w32(w, rtl_table_data(r, 1)); - - rtl_table_write(r, vlan); - rtl_table_release(r); -} - -void rtl930x_vlan_profile_dump(int profile) -{ - u32 p[5]; - - if (profile < 0 || profile > 7) - return; - - p[0] = sw_r32(RTL930X_VLAN_PROFILE_SET(profile)); - p[1] = sw_r32(RTL930X_VLAN_PROFILE_SET(profile) + 4); - p[2] = sw_r32(RTL930X_VLAN_PROFILE_SET(profile) + 8) & 0x1FFFFFFF; - p[3] = sw_r32(RTL930X_VLAN_PROFILE_SET(profile) + 12) & 0x1FFFFFFF; - p[4] = sw_r32(RTL930X_VLAN_PROFILE_SET(profile) + 16) & 0x1FFFFFFF; - - pr_info("VLAN %d: L2 learn: %d; Unknown MC PMasks: L2 %0x, IPv4 %0x, IPv6: %0x", - profile, p[0] & (3 << 21), p[2], p[3], p[4]); - pr_info(" Routing enabled: IPv4 UC %c, IPv6 UC %c, IPv4 MC %c, IPv6 MC %c\n", - p[0] & BIT(17) ? 'y' : 'n', p[0] & BIT(16) ? 'y' : 'n', - p[0] & BIT(13) ? 'y' : 'n', p[0] & BIT(12) ? 'y' : 'n'); - pr_info(" Bridge enabled: IPv4 MC %c, IPv6 MC %c,\n", - p[0] & BIT(15) ? 'y' : 'n', p[0] & BIT(14) ? 'y' : 'n'); - pr_info("VLAN profile %d: raw %08x %08x %08x %08x %08x\n", - profile, p[0], p[1], p[2], p[3], p[4]); -} - -static void rtl930x_vlan_set_untagged(u32 vlan, u64 portmask) -{ - struct table_reg *r = rtl_table_get(RTL9300_TBL_2, 0); - - sw_w32(portmask << 3, rtl_table_data(r, 0)); - rtl_table_write(r, vlan); - rtl_table_release(r); -} - -/* Sets the L2 forwarding to be based on either the inner VLAN tag or the outer - */ -static void rtl930x_vlan_fwd_on_inner(int port, bool is_set) -{ - // Always set all tag modes to fwd based on either inner or outer tag - if (is_set) - sw_w32_mask(0, 0xf, RTL930X_VLAN_PORT_FWD + (port << 2)); - else - sw_w32_mask(0xf, 0, RTL930X_VLAN_PORT_FWD + (port << 2)); -} - -static void rtl930x_vlan_profile_setup(int profile) -{ - u32 p[5]; - - pr_info("In %s\n", __func__); - p[0] = sw_r32(RTL930X_VLAN_PROFILE_SET(profile)); - p[1] = sw_r32(RTL930X_VLAN_PROFILE_SET(profile) + 4); - - // Enable routing of Ipv4/6 Unicast and IPv4/6 Multicast traffic - p[0] |= BIT(17) | BIT(16) | BIT(13) | BIT(12); - p[2] = 0x1fffffff; // L2 unknown MC flooding portmask all ports, including the CPU-port - p[3] = 0x1fffffff; // IPv4 unknown MC flooding portmask - p[4] = 0x1fffffff; // IPv6 unknown MC flooding portmask - - sw_w32(p[0], RTL930X_VLAN_PROFILE_SET(profile)); - sw_w32(p[1], RTL930X_VLAN_PROFILE_SET(profile) + 4); - sw_w32(p[2], RTL930X_VLAN_PROFILE_SET(profile) + 8); - sw_w32(p[3], RTL930X_VLAN_PROFILE_SET(profile) + 12); - sw_w32(p[4], RTL930X_VLAN_PROFILE_SET(profile) + 16); -} - -static void rtl930x_l2_learning_setup(void) -{ - // Portmask for flooding broadcast traffic - sw_w32(0x1fffffff, RTL930X_L2_BC_FLD_PMSK); - - // Portmask for flooding unicast traffic with unknown destination - sw_w32(0x1fffffff, RTL930X_L2_UNKN_UC_FLD_PMSK); - - // Limit learning to maximum: 32k entries, after that just flood (bits 0-1) - sw_w32((0x7fff << 2) | 0, RTL930X_L2_LRN_CONSTRT_CTRL); -} - -static void rtl930x_stp_get(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[]) -{ - int i; - u32 cmd = 1 << 17 /* Execute cmd */ - | 0 << 16 /* Read */ - | 4 << 12 /* Table type 0b10 */ - | (msti & 0xfff); - priv->r->exec_tbl0_cmd(cmd); - - for (i = 0; i < 2; i++) - port_state[i] = sw_r32(RTL930X_TBL_ACCESS_DATA_0(i)); - pr_debug("MSTI: %d STATE: %08x, %08x\n", msti, port_state[0], port_state[1]); -} - -static void rtl930x_stp_set(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[]) -{ - int i; - u32 cmd = 1 << 17 /* Execute cmd */ - | 1 << 16 /* Write */ - | 4 << 12 /* Table type 4 */ - | (msti & 0xfff); - - for (i = 0; i < 2; i++) - sw_w32(port_state[i], RTL930X_TBL_ACCESS_DATA_0(i)); - priv->r->exec_tbl0_cmd(cmd); -} - -static inline int rtl930x_mac_force_mode_ctrl(int p) -{ - return RTL930X_MAC_FORCE_MODE_CTRL + (p << 2); -} - -static inline int rtl930x_mac_port_ctrl(int p) -{ - return RTL930X_MAC_L2_PORT_CTRL(p); -} - -static inline int rtl930x_mac_link_spd_sts(int p) -{ - return RTL930X_MAC_LINK_SPD_STS(p); -} - -static u64 rtl930x_l2_hash_seed(u64 mac, u32 vid) -{ - u64 v = vid; - - v <<= 48; - v |= mac; - - return v; -} - -/* - * Calculate both the block 0 and the block 1 hash by applyingthe same hash - * algorithm as the one used currently by the ASIC to the seed, and return - * both hashes in the lower and higher word of the return value since only 12 bit of - * the hash are significant - */ -static u32 rtl930x_l2_hash_key(struct rtl838x_switch_priv *priv, u64 seed) -{ - u32 k0, k1, h1, h2, h; - - k0 = (u32) (((seed >> 55) & 0x1f) ^ ((seed >> 44) & 0x7ff) - ^ ((seed >> 33) & 0x7ff) ^ ((seed >> 22) & 0x7ff) - ^ ((seed >> 11) & 0x7ff) ^ (seed & 0x7ff)); - - h1 = (seed >> 11) & 0x7ff; - h1 = ((h1 & 0x1f) << 6) | ((h1 >> 5) & 0x3f); - - h2 = (seed >> 33) & 0x7ff; - h2 = ((h2 & 0x3f) << 5)| ((h2 >> 6) & 0x3f); - - k1 = (u32) (((seed << 55) & 0x1f) ^ ((seed >> 44) & 0x7ff) ^ h2 - ^ ((seed >> 22) & 0x7ff) ^ h1 - ^ (seed & 0x7ff)); - - // Algorithm choice for block 0 - if (sw_r32(RTL930X_L2_CTRL) & BIT(0)) - h = k1; - else - h = k0; - - /* Algorithm choice for block 1 - * Since k0 and k1 are < 2048, adding 2048 will offset the hash into the second - * half of hash-space - * 2048 is in fact the hash-table size 16384 divided by 4 hashes per bucket - * divided by 2 to divide the hash space in 2 - */ - if (sw_r32(RTL930X_L2_CTRL) & BIT(1)) - h |= (k1 + 2048) << 16; - else - h |= (k0 + 2048) << 16; - - return h; -} - -/* - * Fills an L2 entry structure from the SoC registers - */ -static void rtl930x_fill_l2_entry(u32 r[], struct rtl838x_l2_entry *e) -{ - pr_debug("In %s valid?\n", __func__); - e->valid = !!(r[2] & BIT(31)); - if (!e->valid) - return; - - pr_debug("In %s is valid\n", __func__); - e->is_ip_mc = false; - e->is_ipv6_mc = false; - - // TODO: Is there not a function to copy directly MAC memory? - e->mac[0] = (r[0] >> 24); - e->mac[1] = (r[0] >> 16); - e->mac[2] = (r[0] >> 8); - e->mac[3] = r[0]; - e->mac[4] = (r[1] >> 24); - e->mac[5] = (r[1] >> 16); - - e->next_hop = !!(r[2] & BIT(12)); - e->rvid = r[1] & 0xfff; - - /* Is it a unicast entry? check multicast bit */ - if (!(e->mac[0] & 1)) { - e->type = L2_UNICAST; - e->is_static = !!(r[2] & BIT(14)); - e->port = (r[2] >> 20) & 0x3ff; - // Check for trunk port - if (r[2] & BIT(30)) { - e->is_trunk = true; - e->stack_dev = (e->port >> 9) & 1; - e->trunk = e->port & 0x3f; - } else { - e->is_trunk = false; - e->stack_dev = (e->port >> 6) & 0xf; - e->port = e->port & 0x3f; - } - - e->block_da = !!(r[2] & BIT(15)); - e->block_sa = !!(r[2] & BIT(16)); - e->suspended = !!(r[2] & BIT(13)); - e->age = (r[2] >> 17) & 3; - e->valid = true; - // the UC_VID field in hardware is used for the VID or for the route id - if (e->next_hop) { - e->nh_route_id = r[2] & 0x7ff; - e->vid = 0; - } else { - e->vid = r[2] & 0xfff; - e->nh_route_id = 0; - } - } else { - e->valid = true; - e->type = L2_MULTICAST; - e->mc_portmask_index = (r[2] >> 16) & 0x3ff; - } -} - -/* - * Fills the 3 SoC table registers r[] with the information of in the rtl838x_l2_entry - */ -static void rtl930x_fill_l2_row(u32 r[], struct rtl838x_l2_entry *e) -{ - u32 port; - - if (!e->valid) { - r[0] = r[1] = r[2] = 0; - return; - } - - r[2] = BIT(31); // Set valid bit - - r[0] = ((u32)e->mac[0]) << 24 | ((u32)e->mac[1]) << 16 - | ((u32)e->mac[2]) << 8 | ((u32)e->mac[3]); - r[1] = ((u32)e->mac[4]) << 24 | ((u32)e->mac[5]) << 16; - - r[2] |= e->next_hop ? BIT(12) : 0; - - if (e->type == L2_UNICAST) { - r[2] |= e->is_static ? BIT(14) : 0; - r[1] |= e->rvid & 0xfff; - r[2] |= (e->port & 0x3ff) << 20; - if (e->is_trunk) { - r[2] |= BIT(30); - port = e->stack_dev << 9 | (e->port & 0x3f); - } else { - port = (e->stack_dev & 0xf) << 6; - port |= e->port & 0x3f; - } - r[2] |= port << 20; - r[2] |= e->block_da ? BIT(15) : 0; - r[2] |= e->block_sa ? BIT(17) : 0; - r[2] |= e->suspended ? BIT(13) : 0; - r[2] |= (e->age & 0x3) << 17; - // the UC_VID field in hardware is used for the VID or for the route id - if (e->next_hop) - r[2] |= e->nh_route_id & 0x7ff; - else - r[2] |= e->vid & 0xfff; - } else { // L2_MULTICAST - r[2] |= (e->mc_portmask_index & 0x3ff) << 16; - r[2] |= e->mc_mac_index & 0x7ff; - } -} - -/* - * Read an L2 UC or MC entry out of a hash bucket of the L2 forwarding table - * hash is the id of the bucket and pos is the position of the entry in that bucket - * The data read from the SoC is filled into rtl838x_l2_entry - */ -static u64 rtl930x_read_l2_entry_using_hash(u32 hash, u32 pos, struct rtl838x_l2_entry *e) -{ - u32 r[3]; - struct table_reg *q = rtl_table_get(RTL9300_TBL_L2, 0); - u32 idx; - int i; - u64 mac; - u64 seed; - - pr_debug("%s: hash %08x, pos: %d\n", __func__, hash, pos); - - /* On the RTL93xx, 2 different hash algorithms are used making it a total of - * 8 buckets that need to be searched, 4 for each hash-half - * Use second hash space when bucket is between 4 and 8 */ - if (pos >= 4) { - pos -= 4; - hash >>= 16; - } else { - hash &= 0xffff; - } - - idx = (0 << 14) | (hash << 2) | pos; // Search SRAM, with hash and at pos in bucket - pr_debug("%s: NOW hash %08x, pos: %d\n", __func__, hash, pos); - - rtl_table_read(q, idx); - for (i = 0; i < 3; i++) - r[i] = sw_r32(rtl_table_data(q, i)); - - rtl_table_release(q); - - rtl930x_fill_l2_entry(r, e); - - pr_debug("%s: valid: %d, nh: %d\n", __func__, e->valid, e->next_hop); - if (!e->valid) - return 0; - - mac = ((u64)e->mac[0]) << 40 | ((u64)e->mac[1]) << 32 | ((u64)e->mac[2]) << 24 - | ((u64)e->mac[3]) << 16 | ((u64)e->mac[4]) << 8 | ((u64)e->mac[5]); - - seed = rtl930x_l2_hash_seed(mac, e->rvid); - pr_debug("%s: mac %016llx, seed %016llx\n", __func__, mac, seed); - // return vid with concatenated mac as unique id - return seed; -} - -static void rtl930x_write_l2_entry_using_hash(u32 hash, u32 pos, struct rtl838x_l2_entry *e) -{ - u32 r[3]; - struct table_reg *q = rtl_table_get(RTL9300_TBL_L2, 0); - u32 idx = (0 << 14) | (hash << 2) | pos; // Access SRAM, with hash and at pos in bucket - int i; - - pr_debug("%s: hash %d, pos %d\n", __func__, hash, pos); - pr_debug("%s: index %d -> mac %02x:%02x:%02x:%02x:%02x:%02x\n", __func__, idx, - e->mac[0], e->mac[1], e->mac[2], e->mac[3],e->mac[4],e->mac[5]); - - rtl930x_fill_l2_row(r, e); - - for (i= 0; i < 3; i++) - sw_w32(r[i], rtl_table_data(q, i)); - - rtl_table_write(q, idx); - rtl_table_release(q); -} - -static u64 rtl930x_read_cam(int idx, struct rtl838x_l2_entry *e) -{ - u32 r[3]; - struct table_reg *q = rtl_table_get(RTL9300_TBL_L2, 1); - int i; - - rtl_table_read(q, idx); - for (i= 0; i < 3; i++) - r[i] = sw_r32(rtl_table_data(q, i)); - - rtl_table_release(q); - - rtl930x_fill_l2_entry(r, e); - if (!e->valid) - return 0; - - // return mac with concatenated vid as unique id - return ((u64)r[0] << 28) | ((r[1] & 0xffff0000) >> 4) | e->vid; -} - -static void rtl930x_write_cam(int idx, struct rtl838x_l2_entry *e) -{ - u32 r[3]; - struct table_reg *q = rtl_table_get(RTL9300_TBL_L2, 1); // Access L2 Table 1 - int i; - - rtl930x_fill_l2_row(r, e); - - for (i= 0; i < 3; i++) - sw_w32(r[i], rtl_table_data(q, i)); - - rtl_table_write(q, idx); - rtl_table_release(q); -} - -static u64 rtl930x_read_mcast_pmask(int idx) -{ - u32 portmask; - // Read MC_PORTMASK (2) via register RTL9300_TBL_L2 - struct table_reg *q = rtl_table_get(RTL9300_TBL_L2, 2); - - rtl_table_read(q, idx); - portmask = sw_r32(rtl_table_data(q, 0)); - portmask >>= 3; - rtl_table_release(q); - - pr_debug("%s: Index idx %d has portmask %08x\n", __func__, idx, portmask); - return portmask; -} - -static void rtl930x_write_mcast_pmask(int idx, u64 portmask) -{ - u32 pm = portmask; - - // Access MC_PORTMASK (2) via register RTL9300_TBL_L2 - struct table_reg *q = rtl_table_get(RTL9300_TBL_L2, 2); - - pr_debug("%s: Index idx %d has portmask %08x\n", __func__, idx, pm); - pm <<= 3; - sw_w32(pm, rtl_table_data(q, 0)); - rtl_table_write(q, idx); - rtl_table_release(q); -} - -u64 rtl930x_traffic_get(int source) -{ - u32 v; - struct table_reg *r = rtl_table_get(RTL9300_TBL_0, 6); - - rtl_table_read(r, source); - v = sw_r32(rtl_table_data(r, 0)); - rtl_table_release(r); - return v >> 3; -} - -/* - * Enable traffic between a source port and a destination port matrix - */ -void rtl930x_traffic_set(int source, u64 dest_matrix) -{ - struct table_reg *r = rtl_table_get(RTL9300_TBL_0, 6); - - sw_w32((dest_matrix << 3), rtl_table_data(r, 0)); - rtl_table_write(r, source); - rtl_table_release(r); -} - -void rtl930x_traffic_enable(int source, int dest) -{ - struct table_reg *r = rtl_table_get(RTL9300_TBL_0, 6); - rtl_table_read(r, source); - sw_w32_mask(0, BIT(dest + 3), rtl_table_data(r, 0)); - rtl_table_write(r, source); - rtl_table_release(r); -} - -void rtl930x_traffic_disable(int source, int dest) -{ - struct table_reg *r = rtl_table_get(RTL9300_TBL_0, 6); - rtl_table_read(r, source); - sw_w32_mask(BIT(dest + 3), 0, rtl_table_data(r, 0)); - rtl_table_write(r, source); - rtl_table_release(r); -} - -void rtl9300_dump_debug(void) -{ - int i; - u16 r = RTL930X_STAT_PRVTE_DROP_COUNTER0; - - for (i = 0; i < 10; i ++) { - pr_info("# %d %08x %08x %08x %08x %08x %08x %08x %08x\n", i * 8, - sw_r32(r), sw_r32(r + 4), sw_r32(r + 8), sw_r32(r + 12), - sw_r32(r + 16), sw_r32(r + 20), sw_r32(r + 24), sw_r32(r + 28)); - r += 32; - } - pr_info("# %08x %08x %08x %08x %08x\n", - sw_r32(r), sw_r32(r + 4), sw_r32(r + 8), sw_r32(r + 12), sw_r32(r + 16)); - rtl930x_print_matrix(); - pr_info("RTL930X_L2_PORT_SABLK_CTRL: %08x, RTL930X_L2_PORT_DABLK_CTRL %08x\n", - sw_r32(RTL930X_L2_PORT_SABLK_CTRL), sw_r32(RTL930X_L2_PORT_DABLK_CTRL) - - ); -} - -irqreturn_t rtl930x_switch_irq(int irq, void *dev_id) -{ - struct dsa_switch *ds = dev_id; - u32 ports = sw_r32(RTL930X_ISR_PORT_LINK_STS_CHG); - u32 link; - int i; - - /* Clear status */ - sw_w32(ports, RTL930X_ISR_PORT_LINK_STS_CHG); - - for (i = 0; i < 28; i++) { - if (ports & BIT(i)) { - /* Read the register twice because of issues with latency at least - * with the external RTL8226 PHY on the XGS1210 */ - link = sw_r32(RTL930X_MAC_LINK_STS); - link = sw_r32(RTL930X_MAC_LINK_STS); - if (link & BIT(i)) - dsa_port_phylink_mac_change(ds, i, true); - else - dsa_port_phylink_mac_change(ds, i, false); - } - } - - return IRQ_HANDLED; -} - -int rtl930x_write_phy(u32 port, u32 page, u32 reg, u32 val) -{ - u32 v; - int err = 0; - - pr_debug("%s: port %d, page: %d, reg: %x, val: %x\n", __func__, port, page, reg, val); - - if (port > 63 || page > 4095 || reg > 31) - return -ENOTSUPP; - - val &= 0xffff; - mutex_lock(&smi_lock); - - sw_w32(BIT(port), RTL930X_SMI_ACCESS_PHY_CTRL_0); - sw_w32_mask(0xffff << 16, val << 16, RTL930X_SMI_ACCESS_PHY_CTRL_2); - v = reg << 20 | page << 3 | 0x1f << 15 | BIT(2) | BIT(0); - sw_w32(v, RTL930X_SMI_ACCESS_PHY_CTRL_1); - - do { - v = sw_r32(RTL930X_SMI_ACCESS_PHY_CTRL_1); - } while (v & 0x1); - - if (v & 0x2) - err = -EIO; - - mutex_unlock(&smi_lock); - - return err; -} - -int rtl930x_read_phy(u32 port, u32 page, u32 reg, u32 *val) -{ - u32 v; - int err = 0; - - if (port > 63 || page > 4095 || reg > 31) - return -ENOTSUPP; - - mutex_lock(&smi_lock); - - sw_w32_mask(0xffff << 16, port << 16, RTL930X_SMI_ACCESS_PHY_CTRL_2); - v = reg << 20 | page << 3 | 0x1f << 15 | 1; - sw_w32(v, RTL930X_SMI_ACCESS_PHY_CTRL_1); - - do { - v = sw_r32(RTL930X_SMI_ACCESS_PHY_CTRL_1); - } while ( v & 0x1); - - if (v & BIT(25)) { - pr_debug("Error reading phy %d, register %d\n", port, reg); - err = -EIO; - } - *val = (sw_r32(RTL930X_SMI_ACCESS_PHY_CTRL_2) & 0xffff); - - pr_debug("%s: port %d, page: %d, reg: %x, val: %x\n", __func__, port, page, reg, *val); - - mutex_unlock(&smi_lock); - - return err; -} - -/* - * Write to an mmd register of the PHY - */ -int rtl930x_write_mmd_phy(u32 port, u32 devnum, u32 regnum, u32 val) -{ - int err = 0; - u32 v; - - mutex_lock(&smi_lock); - - // Set PHY to access - sw_w32(BIT(port), RTL930X_SMI_ACCESS_PHY_CTRL_0); - - // Set data to write - sw_w32_mask(0xffff << 16, val << 16, RTL930X_SMI_ACCESS_PHY_CTRL_2); - - // Set MMD device number and register to write to - sw_w32(devnum << 16 | (regnum & 0xffff), RTL930X_SMI_ACCESS_PHY_CTRL_3); - - v = BIT(2) | BIT(1) | BIT(0); // WRITE | MMD-access | EXEC - sw_w32(v, RTL930X_SMI_ACCESS_PHY_CTRL_1); - - do { - v = sw_r32(RTL930X_SMI_ACCESS_PHY_CTRL_1); - } while (v & BIT(0)); - - pr_debug("%s: port %d, regnum: %x, val: %x (err %d)\n", __func__, port, regnum, val, err); - mutex_unlock(&smi_lock); - return err; -} - -/* - * Read an mmd register of the PHY - */ -int rtl930x_read_mmd_phy(u32 port, u32 devnum, u32 regnum, u32 *val) -{ - int err = 0; - u32 v; - - mutex_lock(&smi_lock); - - // Set PHY to access - sw_w32_mask(0xffff << 16, port << 16, RTL930X_SMI_ACCESS_PHY_CTRL_2); - - // Set MMD device number and register to write to - sw_w32(devnum << 16 | (regnum & 0xffff), RTL930X_SMI_ACCESS_PHY_CTRL_3); - - v = BIT(1) | BIT(0); // MMD-access | EXEC - sw_w32(v, RTL930X_SMI_ACCESS_PHY_CTRL_1); - - do { - v = sw_r32(RTL930X_SMI_ACCESS_PHY_CTRL_1); - } while (v & BIT(0)); - // There is no error-checking via BIT 25 of v, as it does not seem to be set correctly - *val = (sw_r32(RTL930X_SMI_ACCESS_PHY_CTRL_2) & 0xffff); - pr_debug("%s: port %d, regnum: %x, val: %x (err %d)\n", __func__, port, regnum, *val, err); - - mutex_unlock(&smi_lock); - - return err; -} - -/* - * Calculate both the block 0 and the block 1 hash, and return in - * lower and higher word of the return value since only 12 bit of - * the hash are significant - */ -u32 rtl930x_hash(struct rtl838x_switch_priv *priv, u64 seed) -{ - u32 k0, k1, h1, h2, h; - - k0 = (u32) (((seed >> 55) & 0x1f) ^ ((seed >> 44) & 0x7ff) - ^ ((seed >> 33) & 0x7ff) ^ ((seed >> 22) & 0x7ff) - ^ ((seed >> 11) & 0x7ff) ^ (seed & 0x7ff)); - - h1 = (seed >> 11) & 0x7ff; - h1 = ((h1 & 0x1f) << 6) | ((h1 >> 5) & 0x3f); - - h2 = (seed >> 33) & 0x7ff; - h2 = ((h2 & 0x3f) << 5)| ((h2 >> 6) & 0x3f); - - k1 = (u32) (((seed << 55) & 0x1f) ^ ((seed >> 44) & 0x7ff) ^ h2 - ^ ((seed >> 22) & 0x7ff) ^ h1 - ^ (seed & 0x7ff)); - - // Algorithm choice for block 0 - if (sw_r32(RTL930X_L2_CTRL) & BIT(0)) - h = k1; - else - h = k0; - - /* Algorithm choice for block 1 - * Since k0 and k1 are < 2048, adding 2048 will offset the hash into the second - * half of hash-space - * 2048 is in fact the hash-table size 16384 divided by 4 hashes per bucket - * divided by 2 to divide the hash space in 2 - */ - if (sw_r32(RTL930X_L2_CTRL) & BIT(1)) - h |= (k1 + 2048) << 16; - else - h |= (k0 + 2048) << 16; - - return h; -} - -/* - * Enables or disables the EEE/EEEP capability of a port - */ -void rtl930x_port_eee_set(struct rtl838x_switch_priv *priv, int port, bool enable) -{ - u32 v; - - // This works only for Ethernet ports, and on the RTL930X, ports from 26 are SFP - if (port >= 26) - return; - - pr_debug("In %s: setting port %d to %d\n", __func__, port, enable); - v = enable ? 0x3f : 0x0; - - // Set EEE/EEEP state for 100, 500, 1000MBit and 2.5, 5 and 10GBit - sw_w32_mask(0, v << 10, rtl930x_mac_force_mode_ctrl(port)); - - // Set TX/RX EEE state - v = enable ? 0x3 : 0x0; - sw_w32(v, RTL930X_EEE_CTRL(port)); - - priv->ports[port].eee_enabled = enable; -} - -/* - * Get EEE own capabilities and negotiation result - */ -int rtl930x_eee_port_ability(struct rtl838x_switch_priv *priv, struct ethtool_eee *e, int port) -{ - u32 link, a; - - if (port >= 26) - return -ENOTSUPP; - - pr_info("In %s, port %d\n", __func__, port); - link = sw_r32(RTL930X_MAC_LINK_STS); - link = sw_r32(RTL930X_MAC_LINK_STS); - if (!(link & BIT(port))) - return 0; - - pr_info("Setting advertised\n"); - if (sw_r32(rtl930x_mac_force_mode_ctrl(port)) & BIT(10)) - e->advertised |= ADVERTISED_100baseT_Full; - - if (sw_r32(rtl930x_mac_force_mode_ctrl(port)) & BIT(12)) - e->advertised |= ADVERTISED_1000baseT_Full; - - if (priv->ports[port].is2G5 && sw_r32(rtl930x_mac_force_mode_ctrl(port)) & BIT(13)) { - pr_info("ADVERTISING 2.5G EEE\n"); - e->advertised |= ADVERTISED_2500baseX_Full; - } - - if (priv->ports[port].is10G && sw_r32(rtl930x_mac_force_mode_ctrl(port)) & BIT(15)) - e->advertised |= ADVERTISED_10000baseT_Full; - - a = sw_r32(RTL930X_MAC_EEE_ABLTY); - a = sw_r32(RTL930X_MAC_EEE_ABLTY); - pr_info("Link partner: %08x\n", a); - if (a & BIT(port)) { - e->lp_advertised = ADVERTISED_100baseT_Full; - e->lp_advertised |= ADVERTISED_1000baseT_Full; - if (priv->ports[port].is2G5) - e->lp_advertised |= ADVERTISED_2500baseX_Full; - if (priv->ports[port].is10G) - e->lp_advertised |= ADVERTISED_10000baseT_Full; - } - - // Read 2x to clear latched state - a = sw_r32(RTL930X_EEEP_PORT_CTRL(port)); - a = sw_r32(RTL930X_EEEP_PORT_CTRL(port)); - pr_info("%s RTL930X_EEEP_PORT_CTRL: %08x\n", __func__, a); - - return 0; -} - -static void rtl930x_init_eee(struct rtl838x_switch_priv *priv, bool enable) -{ - int i; - - pr_info("Setting up EEE, state: %d\n", enable); - - // Setup EEE on all ports - for (i = 0; i < priv->cpu_port; i++) { - if (priv->ports[i].phy) - rtl930x_port_eee_set(priv, i, enable); - } - - priv->eee_enabled = enable; -} -#define HASH_PICK(val, lsb, len) ((val & (((1 << len) - 1) << lsb)) >> lsb) - -static u32 rtl930x_l3_hash4(u32 ip, int algorithm, bool move_dip) -{ - u32 rows[4]; - u32 hash; - u32 s0, s1, pH; - - memset(rows, 0, sizeof(rows)); - - rows[0] = HASH_PICK(ip, 27, 5); - rows[1] = HASH_PICK(ip, 18, 9); - rows[2] = HASH_PICK(ip, 9, 9); - - if (!move_dip) - rows[3] = HASH_PICK(ip, 0, 9); - - if (!algorithm) { - hash = rows[0] ^ rows[1] ^ rows[2] ^ rows[3]; - } else { - s0 = rows[0] + rows[1] + rows[2]; - s1 = (s0 & 0x1ff) + ((s0 & (0x1ff << 9)) >> 9); - pH = (s1 & 0x1ff) + ((s1 & (0x1ff << 9)) >> 9); - hash = pH ^ rows[3]; - } - return hash; -} - -static u32 rtl930x_l3_hash6(struct in6_addr *ip6, int algorithm, bool move_dip) -{ - u32 rows[16]; - u32 hash; - u32 s0, s1, pH; - - rows[0] = (HASH_PICK(ip6->s6_addr[0], 6, 2) << 0); - rows[1] = (HASH_PICK(ip6->s6_addr[0], 0, 6) << 3) | HASH_PICK(ip6->s6_addr[1], 5, 3); - rows[2] = (HASH_PICK(ip6->s6_addr[1], 0, 5) << 4) | HASH_PICK(ip6->s6_addr[2], 4, 4); - rows[3] = (HASH_PICK(ip6->s6_addr[2], 0, 4) << 5) | HASH_PICK(ip6->s6_addr[3], 3, 5); - rows[4] = (HASH_PICK(ip6->s6_addr[3], 0, 3) << 6) | HASH_PICK(ip6->s6_addr[4], 2, 6); - rows[5] = (HASH_PICK(ip6->s6_addr[4], 0, 2) << 7) | HASH_PICK(ip6->s6_addr[5], 1, 7); - rows[6] = (HASH_PICK(ip6->s6_addr[5], 0, 1) << 8) | HASH_PICK(ip6->s6_addr[6], 0, 8); - rows[7] = (HASH_PICK(ip6->s6_addr[7], 0, 8) << 1) | HASH_PICK(ip6->s6_addr[8], 7, 1); - rows[8] = (HASH_PICK(ip6->s6_addr[8], 0, 7) << 2) | HASH_PICK(ip6->s6_addr[9], 6, 2); - rows[9] = (HASH_PICK(ip6->s6_addr[9], 0, 6) << 3) | HASH_PICK(ip6->s6_addr[10], 5, 3); - rows[10] = (HASH_PICK(ip6->s6_addr[10], 0, 5) << 4) | HASH_PICK(ip6->s6_addr[11], 4, 4); - if (!algorithm) { - rows[11] = (HASH_PICK(ip6->s6_addr[11], 0, 4) << 5) - | (HASH_PICK(ip6->s6_addr[12], 3, 5) << 0); - rows[12] = (HASH_PICK(ip6->s6_addr[12], 0, 3) << 6) - | (HASH_PICK(ip6->s6_addr[13], 2, 6) << 0); - rows[13] = (HASH_PICK(ip6->s6_addr[13], 0, 2) << 7) - | (HASH_PICK(ip6->s6_addr[14], 1, 7) << 0); - if (!move_dip) { - rows[14] = (HASH_PICK(ip6->s6_addr[14], 0, 1) << 8) - | (HASH_PICK(ip6->s6_addr[15], 0, 8) << 0); - } - hash = rows[0] ^ rows[1] ^ rows[2] ^ rows[3] ^ rows[4] ^ rows[5] ^ rows[6] - ^ rows[7] ^ rows[8] ^ rows[9] ^ rows[10] ^ rows[11] ^ rows[12] - ^ rows[13] ^ rows[14]; - } else { - rows[11] = (HASH_PICK(ip6->s6_addr[11], 0, 4) << 5); - rows[12] = (HASH_PICK(ip6->s6_addr[12], 3, 5) << 0); - rows[13] = (HASH_PICK(ip6->s6_addr[12], 0, 3) << 6) - | HASH_PICK(ip6->s6_addr[13], 2, 6); - rows[14] = (HASH_PICK(ip6->s6_addr[13], 0, 2) << 7) - | HASH_PICK(ip6->s6_addr[14], 1, 7); - if (!move_dip) { - rows[15] = (HASH_PICK(ip6->s6_addr[14], 0, 1) << 8) - | (HASH_PICK(ip6->s6_addr[15], 0, 8) << 0); - } - s0 = rows[12] + rows[13] + rows[14]; - s1 = (s0 & 0x1ff) + ((s0 & (0x1ff << 9)) >> 9); - pH = (s1 & 0x1ff) + ((s1 & (0x1ff << 9)) >> 9); - hash = rows[0] ^ rows[1] ^ rows[2] ^ rows[3] ^ rows[4] ^ rows[5] ^ rows[6] - ^ rows[7] ^ rows[8] ^ rows[9] ^ rows[10] ^ rows[11] ^ pH ^ rows[15]; - } - return hash; -} - -/* - * Read a prefix route entry from the L3_PREFIX_ROUTE_IPUC table - * We currently only support IPv4 and IPv6 unicast route - */ -static void rtl930x_route_read(int idx, struct rtl83xx_route *rt) -{ - u32 v, ip4_m; - bool host_route, default_route; - struct in6_addr ip6_m; - - // Read L3_PREFIX_ROUTE_IPUC table (2) via register RTL9300_TBL_1 - struct table_reg *r = rtl_table_get(RTL9300_TBL_1, 2); - - rtl_table_read(r, idx); - // The table has a size of 11 registers - rt->attr.valid = !!(sw_r32(rtl_table_data(r, 0)) & BIT(31)); - if (!rt->attr.valid) - goto out; - - rt->attr.type = (sw_r32(rtl_table_data(r, 0)) >> 29) & 0x3; - - v = sw_r32(rtl_table_data(r, 10)); - host_route = !!(v & BIT(21)); - default_route = !!(v & BIT(20)); - rt->prefix_len = -1; - pr_info("%s: host route %d, default_route %d\n", __func__, host_route, default_route); - - switch (rt->attr.type) { - case 0: // IPv4 Unicast route - rt->dst_ip = sw_r32(rtl_table_data(r, 4)); - ip4_m = sw_r32(rtl_table_data(r, 9)); - pr_info("%s: Read ip4 mask: %08x\n", __func__, ip4_m); - rt->prefix_len = host_route ? 32 : -1; - rt->prefix_len = (rt->prefix_len < 0 && default_route) ? 0 : -1; - if (rt->prefix_len < 0) - rt->prefix_len = inet_mask_len(ip4_m); - break; - case 2: // IPv6 Unicast route - ipv6_addr_set(&rt->dst_ip6, - sw_r32(rtl_table_data(r, 1)), sw_r32(rtl_table_data(r, 2)), - sw_r32(rtl_table_data(r, 3)), sw_r32(rtl_table_data(r, 4))); - ipv6_addr_set(&ip6_m, - sw_r32(rtl_table_data(r, 6)), sw_r32(rtl_table_data(r, 7)), - sw_r32(rtl_table_data(r, 8)), sw_r32(rtl_table_data(r, 9))); - rt->prefix_len = host_route ? 128 : 0; - rt->prefix_len = (rt->prefix_len < 0 && default_route) ? 0 : -1; - if (rt->prefix_len < 0) - rt->prefix_len = find_last_bit((unsigned long int *)&ip6_m.s6_addr32, - 128); - break; - case 1: // IPv4 Multicast route - case 3: // IPv6 Multicast route - pr_warn("%s: route type not supported\n", __func__); - goto out; - } - - rt->attr.hit = !!(v & BIT(22)); - rt->attr.action = (v >> 18) & 3; - rt->nh.id = (v >> 7) & 0x7ff; - rt->attr.ttl_dec = !!(v & BIT(6)); - rt->attr.ttl_check = !!(v & BIT(5)); - rt->attr.dst_null = !!(v & BIT(4)); - rt->attr.qos_as = !!(v & BIT(3)); - rt->attr.qos_prio = v & 0x7; - pr_info("%s: index %d is valid: %d\n", __func__, idx, rt->attr.valid); - pr_info("%s: next_hop: %d, hit: %d, action :%d, ttl_dec %d, ttl_check %d, dst_null %d\n", - __func__, rt->nh.id, rt->attr.hit, rt->attr.action, - rt->attr.ttl_dec, rt->attr.ttl_check, rt->attr.dst_null); - pr_info("%s: GW: %pI4, prefix_len: %d\n", __func__, &rt->dst_ip, rt->prefix_len); -out: - rtl_table_release(r); -} - -static void rtl930x_net6_mask(int prefix_len, struct in6_addr *ip6_m) -{ - int o, b; - // Define network mask - o = prefix_len >> 3; - b = prefix_len & 0x7; - memset(ip6_m->s6_addr, 0xff, o); - ip6_m->s6_addr[o] |= b ? 0xff00 >> b : 0x00; -} - -/* - * Read a host route entry from the table using its index - * We currently only support IPv4 and IPv6 unicast route - */ -static void rtl930x_host_route_read(int idx, struct rtl83xx_route *rt) -{ - u32 v; - // Read L3_HOST_ROUTE_IPUC table (1) via register RTL9300_TBL_1 - struct table_reg *r = rtl_table_get(RTL9300_TBL_1, 1); - - idx = ((idx / 6) * 8) + (idx % 6); - - pr_debug("In %s, physical index %d\n", __func__, idx); - rtl_table_read(r, idx); - // The table has a size of 5 (for UC, 11 for MC) registers - v = sw_r32(rtl_table_data(r, 0)); - rt->attr.valid = !!(v & BIT(31)); - if (!rt->attr.valid) - goto out; - rt->attr.type = (v >> 29) & 0x3; - switch (rt->attr.type) { - case 0: // IPv4 Unicast route - rt->dst_ip = sw_r32(rtl_table_data(r, 4)); - break; - case 2: // IPv6 Unicast route - ipv6_addr_set(&rt->dst_ip6, - sw_r32(rtl_table_data(r, 3)), sw_r32(rtl_table_data(r, 2)), - sw_r32(rtl_table_data(r, 1)), sw_r32(rtl_table_data(r, 0))); - break; - case 1: // IPv4 Multicast route - case 3: // IPv6 Multicast route - pr_warn("%s: route type not supported\n", __func__); - goto out; - } - - rt->attr.hit = !!(v & BIT(20)); - rt->attr.dst_null = !!(v & BIT(19)); - rt->attr.action = (v >> 17) & 3; - rt->nh.id = (v >> 6) & 0x7ff; - rt->attr.ttl_dec = !!(v & BIT(5)); - rt->attr.ttl_check = !!(v & BIT(4)); - rt->attr.qos_as = !!(v & BIT(3)); - rt->attr.qos_prio = v & 0x7; - pr_debug("%s: index %d is valid: %d\n", __func__, idx, rt->attr.valid); - pr_debug("%s: next_hop: %d, hit: %d, action :%d, ttl_dec %d, ttl_check %d, dst_null %d\n", - __func__, rt->nh.id, rt->attr.hit, rt->attr.action, rt->attr.ttl_dec, rt->attr.ttl_check, - rt->attr.dst_null); - pr_debug("%s: Destination: %pI4\n", __func__, &rt->dst_ip); - -out: - rtl_table_release(r); -} - -/* - * Write a host route entry from the table using its index - * We currently only support IPv4 and IPv6 unicast route - */ -static void rtl930x_host_route_write(int idx, struct rtl83xx_route *rt) -{ - u32 v; - // Access L3_HOST_ROUTE_IPUC table (1) via register RTL9300_TBL_1 - struct table_reg *r = rtl_table_get(RTL9300_TBL_1, 1); - // The table has a size of 5 (for UC, 11 for MC) registers - - idx = ((idx / 6) * 8) + (idx % 6); - - pr_debug("%s: index %d is valid: %d\n", __func__, idx, rt->attr.valid); - pr_debug("%s: next_hop: %d, hit: %d, action :%d, ttl_dec %d, ttl_check %d, dst_null %d\n", - __func__, rt->nh.id, rt->attr.hit, rt->attr.action, rt->attr.ttl_dec, rt->attr.ttl_check, - rt->attr.dst_null); - pr_debug("%s: GW: %pI4, prefix_len: %d\n", __func__, &rt->dst_ip, rt->prefix_len); - - v = BIT(31); // Entry is valid - v |= (rt->attr.type & 0x3) << 29; - v |= rt->attr.hit ? BIT(20) : 0; - v |= rt->attr.dst_null ? BIT(19) : 0; - v |= (rt->attr.action & 0x3) << 17; - v |= (rt->nh.id & 0x7ff) << 6; - v |= rt->attr.ttl_dec ? BIT(5) : 0; - v |= rt->attr.ttl_check ? BIT(4) : 0; - v |= rt->attr.qos_as ? BIT(3) : 0; - v |= rt->attr.qos_prio & 0x7; - - sw_w32(v, rtl_table_data(r, 0)); - switch (rt->attr.type) { - case 0: // IPv4 Unicast route - sw_w32(0, rtl_table_data(r, 1)); - sw_w32(0, rtl_table_data(r, 2)); - sw_w32(0, rtl_table_data(r, 3)); - sw_w32(rt->dst_ip, rtl_table_data(r, 4)); - break; - case 2: // IPv6 Unicast route - sw_w32(rt->dst_ip6.s6_addr32[0], rtl_table_data(r, 1)); - sw_w32(rt->dst_ip6.s6_addr32[1], rtl_table_data(r, 2)); - sw_w32(rt->dst_ip6.s6_addr32[2], rtl_table_data(r, 3)); - sw_w32(rt->dst_ip6.s6_addr32[3], rtl_table_data(r, 4)); - break; - case 1: // IPv4 Multicast route - case 3: // IPv6 Multicast route - pr_warn("%s: route type not supported\n", __func__); - goto out; - } - - rtl_table_write(r, idx); - -out: - rtl_table_release(r); -} - -/* - * Look up the index of a prefix route in the routing table CAM for unicast IPv4/6 routes - * using hardware offload. - */ -static int rtl930x_route_lookup_hw(struct rtl83xx_route *rt) -{ - u32 ip4_m, v; - struct in6_addr ip6_m; - int i; - - if (rt->attr.type == 1 || rt->attr.type == 3) // Hardware only supports UC routes - return -1; - - sw_w32_mask(0x3 << 19, rt->attr.type, RTL930X_L3_HW_LU_KEY_CTRL); - if (rt->attr.type) { // IPv6 - rtl930x_net6_mask(rt->prefix_len, &ip6_m); - for (i = 0; i < 4; i++) - sw_w32(rt->dst_ip6.s6_addr32[0] & ip6_m.s6_addr32[0], - RTL930X_L3_HW_LU_KEY_IP_CTRL + (i << 2)); - } else { // IPv4 - ip4_m = inet_make_mask(rt->prefix_len); - sw_w32(0, RTL930X_L3_HW_LU_KEY_IP_CTRL); - sw_w32(0, RTL930X_L3_HW_LU_KEY_IP_CTRL + 4); - sw_w32(0, RTL930X_L3_HW_LU_KEY_IP_CTRL + 8); - v = rt->dst_ip & ip4_m; - pr_info("%s: searching for %pI4\n", __func__, &v); - sw_w32(v, RTL930X_L3_HW_LU_KEY_IP_CTRL + 12); - } - - // Execute CAM lookup in SoC - sw_w32(BIT(15), RTL930X_L3_HW_LU_CTRL); - - // Wait until execute bit clears and result is ready - do { - v = sw_r32(RTL930X_L3_HW_LU_CTRL); - } while (v & BIT(15)); - - pr_info("%s: found: %d, index: %d\n", __func__, !!(v & BIT(14)), v & 0x1ff); - - // Test if search successful (BIT 14 set) - if (v & BIT(14)) - return v & 0x1ff; - - return -1; -} - -static int rtl930x_find_l3_slot(struct rtl83xx_route *rt, bool must_exist) -{ - int t, s, slot_width, algorithm, addr, idx; - u32 hash; - struct rtl83xx_route route_entry; - - // IPv6 entries take up 3 slots - slot_width = (rt->attr.type == 0) || (rt->attr.type == 2) ? 1 : 3; - - for (t = 0; t < 2; t++) { - algorithm = (sw_r32(RTL930X_L3_HOST_TBL_CTRL) >> (2 + t)) & 0x1; - hash = rtl930x_l3_hash4(rt->dst_ip, algorithm, false); - - pr_debug("%s: table %d, algorithm %d, hash %04x\n", __func__, t, algorithm, hash); - - for (s = 0; s < 6; s += slot_width) { - addr = (t << 12) | ((hash & 0x1ff) << 3) | s; - pr_debug("%s physical address %d\n", __func__, addr); - idx = ((addr / 8) * 6) + (addr % 8); - pr_debug("%s logical address %d\n", __func__, idx); - - rtl930x_host_route_read(idx, &route_entry); - pr_debug("%s route valid %d, route dest: %pI4, hit %d\n", __func__, - rt->attr.valid, &rt->dst_ip, rt->attr.hit); - if (!must_exist && rt->attr.valid) - return idx; - if (must_exist && route_entry.dst_ip == rt->dst_ip) - return idx; - } - } - - return -1; -} - -/* - * Write a prefix route into the routing table CAM at position idx - * Currently only IPv4 and IPv6 unicast routes are supported - */ -static void rtl930x_route_write(int idx, struct rtl83xx_route *rt) -{ - u32 v, ip4_m; - struct in6_addr ip6_m; - // Access L3_PREFIX_ROUTE_IPUC table (2) via register RTL9300_TBL_1 - // The table has a size of 11 registers (20 for MC) - struct table_reg *r = rtl_table_get(RTL9300_TBL_1, 2); - - pr_debug("%s: index %d is valid: %d\n", __func__, idx, rt->attr.valid); - pr_debug("%s: nexthop: %d, hit: %d, action :%d, ttl_dec %d, ttl_check %d, dst_null %d\n", - __func__, rt->nh.id, rt->attr.hit, rt->attr.action, - rt->attr.ttl_dec, rt->attr.ttl_check, rt->attr.dst_null); - pr_debug("%s: GW: %pI4, prefix_len: %d\n", __func__, &rt->dst_ip, rt->prefix_len); - - v = rt->attr.valid ? BIT(31) : 0; - v |= (rt->attr.type & 0x3) << 29; - sw_w32(v, rtl_table_data(r, 0)); - - v = rt->attr.hit ? BIT(22) : 0; - v |= (rt->attr.action & 0x3) << 18; - v |= (rt->nh.id & 0x7ff) << 7; - v |= rt->attr.ttl_dec ? BIT(6) : 0; - v |= rt->attr.ttl_check ? BIT(5) : 0; - v |= rt->attr.dst_null ? BIT(6) : 0; - v |= rt->attr.qos_as ? BIT(6) : 0; - v |= rt->attr.qos_prio & 0x7; - v |= rt->prefix_len == 0 ? BIT(20) : 0; // set default route bit - - // set bit mask for entry type always to 0x3 - sw_w32(0x3 << 29, rtl_table_data(r, 5)); - - switch (rt->attr.type) { - case 0: // IPv4 Unicast route - sw_w32(0, rtl_table_data(r, 1)); - sw_w32(0, rtl_table_data(r, 2)); - sw_w32(0, rtl_table_data(r, 3)); - sw_w32(rt->dst_ip, rtl_table_data(r, 4)); - - v |= rt->prefix_len == 32 ? BIT(21) : 0; // set host-route bit - ip4_m = inet_make_mask(rt->prefix_len); - sw_w32(0, rtl_table_data(r, 6)); - sw_w32(0, rtl_table_data(r, 7)); - sw_w32(0, rtl_table_data(r, 8)); - sw_w32(ip4_m, rtl_table_data(r, 9)); - break; - case 2: // IPv6 Unicast route - sw_w32(rt->dst_ip6.s6_addr32[0], rtl_table_data(r, 1)); - sw_w32(rt->dst_ip6.s6_addr32[1], rtl_table_data(r, 2)); - sw_w32(rt->dst_ip6.s6_addr32[2], rtl_table_data(r, 3)); - sw_w32(rt->dst_ip6.s6_addr32[3], rtl_table_data(r, 4)); - - v |= rt->prefix_len == 128 ? BIT(21) : 0; // set host-route bit - - rtl930x_net6_mask(rt->prefix_len, &ip6_m); - - sw_w32(ip6_m.s6_addr32[0], rtl_table_data(r, 6)); - sw_w32(ip6_m.s6_addr32[1], rtl_table_data(r, 7)); - sw_w32(ip6_m.s6_addr32[2], rtl_table_data(r, 8)); - sw_w32(ip6_m.s6_addr32[3], rtl_table_data(r, 9)); - break; - case 1: // IPv4 Multicast route - case 3: // IPv6 Multicast route - pr_warn("%s: route type not supported\n", __func__); - rtl_table_release(r); - return; - } - sw_w32(v, rtl_table_data(r, 10)); - - pr_debug("%s: %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x\n", __func__, - sw_r32(rtl_table_data(r, 0)), sw_r32(rtl_table_data(r, 1)), sw_r32(rtl_table_data(r, 2)), - sw_r32(rtl_table_data(r, 3)), sw_r32(rtl_table_data(r, 4)), sw_r32(rtl_table_data(r, 5)), - sw_r32(rtl_table_data(r, 6)), sw_r32(rtl_table_data(r, 7)), sw_r32(rtl_table_data(r, 8)), - sw_r32(rtl_table_data(r, 9)), sw_r32(rtl_table_data(r, 10))); - - rtl_table_write(r, idx); - rtl_table_release(r); -} - - -/* - * Get the destination MAC and L3 egress interface ID of a nexthop entry from - * the SoC's L3_NEXTHOP table - */ -static void rtl930x_get_l3_nexthop(int idx, u16 *dmac_id, u16 *interface) -{ - u32 v; - // Read L3_NEXTHOP table (3) via register RTL9300_TBL_1 - struct table_reg *r = rtl_table_get(RTL9300_TBL_1, 3); - - rtl_table_read(r, idx); - // The table has a size of 1 register - v = sw_r32(rtl_table_data(r, 0)); - rtl_table_release(r); - - *dmac_id = (v >> 7) & 0x7fff; - *interface = v & 0x7f; -} - -static int rtl930x_l3_mtu_del(struct rtl838x_switch_priv *priv, int mtu) -{ - int i; - - for (i = 0; i < MAX_INTF_MTUS; i++) { - if (mtu == priv->intf_mtus[i]) - break; - } - if (i >= MAX_INTF_MTUS || !priv->intf_mtu_count[i]) { - pr_err("%s: No MTU slot found for MTU: %d\n", __func__, mtu); - return -EINVAL; - } - - priv->intf_mtu_count[i]--; -} - -static int rtl930x_l3_mtu_add(struct rtl838x_switch_priv *priv, int mtu) -{ - int i, free_mtu; - int mtu_id; - - // Try to find an existing mtu-value or a free slot - free_mtu = MAX_INTF_MTUS; - for (i = 0; i < MAX_INTF_MTUS && priv->intf_mtus[i] != mtu; i++) { - if ((!priv->intf_mtu_count[i]) && (free_mtu == MAX_INTF_MTUS)) - free_mtu = i; - } - i = (i < MAX_INTF_MTUS) ? i : free_mtu; - if (i < MAX_INTF_MTUS) { - mtu_id = i; - } else { - pr_err("%s: No free MTU slot available!\n", __func__); - return -EINVAL; - } - - priv->intf_mtus[i] = mtu; - pr_info("Writing MTU %d to slot %d\n", priv->intf_mtus[i], i); - // Set MTU-value of the slot TODO: distinguish between IPv4/IPv6 routes / slots - sw_w32_mask(0xffff << ((i % 2) * 16), priv->intf_mtus[i] << ((i % 2) * 16), - RTL930X_L3_IP_MTU_CTRL(i)); - sw_w32_mask(0xffff << ((i % 2) * 16), priv->intf_mtus[i] << ((i % 2) * 16), - RTL930X_L3_IP6_MTU_CTRL(i)); - - priv->intf_mtu_count[i]++; - - return mtu_id; -} - -/* - * Creates an interface for a route by setting up the HW tables in the SoC - */ -static int rtl930x_l3_intf_add(struct rtl838x_switch_priv *priv, struct rtl838x_l3_intf *intf) -{ - int i, intf_id, mtu_id; - // number of MTU-values < 16384 - - // Use the same IPv6 mtu as the ip4 mtu for this route if unset - intf->ip6_mtu = intf->ip6_mtu ? intf->ip6_mtu : intf->ip4_mtu; - - mtu_id = rtl930x_l3_mtu_add(priv, intf->ip4_mtu); - pr_info("%s: added mtu %d with mtu-id %d\n", __func__, intf->ip4_mtu, mtu_id); - if (mtu_id < 0) - return -ENOSPC; - intf->ip4_mtu_id = mtu_id; - intf->ip6_mtu_id = mtu_id; - - for (i = 0; i < MAX_INTERFACES; i++) { - if (!priv->interfaces[i]) - break; - } - if (i >= MAX_INTERFACES) { - pr_err("%s: cannot find free interface entry\n", __func__); - return -EINVAL; - } - intf_id = i; - priv->interfaces[i] = kzalloc(sizeof(struct rtl838x_l3_intf), GFP_KERNEL); - if (!priv->interfaces[i]) { - pr_err("%s: no memory to allocate new interface\n", __func__); - return -ENOMEM; - } -} - -/* - * Set the destination MAC and L3 egress interface ID for a nexthop entry in the SoC's - * L3_NEXTHOP table. The nexthop entry is identified by idx. - * dmac_id is the reference to the L2 entry in the L2 forwarding table, special values are - * 0x7ffe: TRAP2CPU - * 0x7ffd: TRAP2MASTERCPU - * 0x7fff: DMAC_ID_DROP - */ -static void rtl930x_set_l3_nexthop(int idx, u16 dmac_id, u16 interface) -{ - // Access L3_NEXTHOP table (3) via register RTL9300_TBL_1 - struct table_reg *r = rtl_table_get(RTL9300_TBL_1, 3); - - pr_info("%s: Writing to L3_NEXTHOP table, index %d, dmac_id %d, interface %d\n", - __func__, idx, dmac_id, interface); - sw_w32(((dmac_id & 0x7fff) << 7) | (interface & 0x7f), rtl_table_data(r, 0)); - - pr_info("%s: %08x\n", __func__, sw_r32(rtl_table_data(r,0))); - rtl_table_write(r, idx); - rtl_table_release(r); -} - -static void rtl930x_pie_lookup_enable(struct rtl838x_switch_priv *priv, int index) -{ - int block = index / PIE_BLOCK_SIZE; - - sw_w32_mask(0, BIT(block), RTL930X_PIE_BLK_LOOKUP_CTRL); -} - -/* - * Reads the intermediate representation of the templated match-fields of the - * PIE rule in the pie_rule structure and fills in the raw data fields in the - * raw register space r[]. - * The register space configuration size is identical for the RTL8380/90 and RTL9300, - * however the RTL9310 has 2 more registers / fields and the physical field-ids are different - * on all SoCs - * On the RTL9300 the mask fields are not word-aligend! - */ -static void rtl930x_write_pie_templated(u32 r[], struct pie_rule *pr, enum template_field_id t[]) -{ - int i; - enum template_field_id field_type; - u16 data, data_m; - - for (i = 0; i < N_FIXED_FIELDS; i++) { - field_type = t[i]; - data = data_m = 0; - - switch (field_type) { - case TEMPLATE_FIELD_SPM0: - data = pr->spm; - data_m = pr->spm_m; - break; - case TEMPLATE_FIELD_SPM1: - data = pr->spm >> 16; - data_m = pr->spm_m >> 16; - break; - case TEMPLATE_FIELD_OTAG: - data = pr->otag; - data_m = pr->otag_m; - break; - case TEMPLATE_FIELD_SMAC0: - data = pr->smac[4]; - data = (data << 8) | pr->smac[5]; - data_m = pr->smac_m[4]; - data_m = (data_m << 8) | pr->smac_m[5]; - break; - case TEMPLATE_FIELD_SMAC1: - data = pr->smac[2]; - data = (data << 8) | pr->smac[3]; - data_m = pr->smac_m[2]; - data_m = (data_m << 8) | pr->smac_m[3]; - break; - case TEMPLATE_FIELD_SMAC2: - data = pr->smac[0]; - data = (data << 8) | pr->smac[1]; - data_m = pr->smac_m[0]; - data_m = (data_m << 8) | pr->smac_m[1]; - break; - case TEMPLATE_FIELD_DMAC0: - data = pr->dmac[4]; - data = (data << 8) | pr->dmac[5]; - data_m = pr->dmac_m[4]; - data_m = (data_m << 8) | pr->dmac_m[5]; - break; - case TEMPLATE_FIELD_DMAC1: - data = pr->dmac[2]; - data = (data << 8) | pr->dmac[3]; - data_m = pr->dmac_m[2]; - data_m = (data_m << 8) | pr->dmac_m[3]; - break; - case TEMPLATE_FIELD_DMAC2: - data = pr->dmac[0]; - data = (data << 8) | pr->dmac[1]; - data_m = pr->dmac_m[0]; - data_m = (data_m << 8) | pr->dmac_m[1]; - break; - case TEMPLATE_FIELD_ETHERTYPE: - data = pr->ethertype; - data_m = pr->ethertype_m; - break; - case TEMPLATE_FIELD_ITAG: - data = pr->itag; - data_m = pr->itag_m; - break; - case TEMPLATE_FIELD_SIP0: - if (pr->is_ipv6) { - data = pr->sip6.s6_addr16[7]; - data_m = pr->sip6_m.s6_addr16[7]; - } else { - data = pr->sip; - data_m = pr->sip_m; - } - break; - case TEMPLATE_FIELD_SIP1: - if (pr->is_ipv6) { - data = pr->sip6.s6_addr16[6]; - data_m = pr->sip6_m.s6_addr16[6]; - } else { - data = pr->sip >> 16; - data_m = pr->sip_m >> 16; - } - break; - - case TEMPLATE_FIELD_SIP2: - case TEMPLATE_FIELD_SIP3: - case TEMPLATE_FIELD_SIP4: - case TEMPLATE_FIELD_SIP5: - case TEMPLATE_FIELD_SIP6: - case TEMPLATE_FIELD_SIP7: - data = pr->sip6.s6_addr16[5 - (field_type - TEMPLATE_FIELD_SIP2)]; - data_m = pr->sip6_m.s6_addr16[5 - (field_type - TEMPLATE_FIELD_SIP2)]; - break; - - case TEMPLATE_FIELD_DIP0: - if (pr->is_ipv6) { - data = pr->dip6.s6_addr16[7]; - data_m = pr->dip6_m.s6_addr16[7]; - } else { - data = pr->dip; - data_m = pr->dip_m; - } - break; - - case TEMPLATE_FIELD_DIP1: - if (pr->is_ipv6) { - data = pr->dip6.s6_addr16[6]; - data_m = pr->dip6_m.s6_addr16[6]; - } else { - data = pr->dip >> 16; - data_m = pr->dip_m >> 16; - } - break; - - case TEMPLATE_FIELD_DIP2: - case TEMPLATE_FIELD_DIP3: - case TEMPLATE_FIELD_DIP4: - case TEMPLATE_FIELD_DIP5: - case TEMPLATE_FIELD_DIP6: - case TEMPLATE_FIELD_DIP7: - data = pr->dip6.s6_addr16[5 - (field_type - TEMPLATE_FIELD_DIP2)]; - data_m = pr->dip6_m.s6_addr16[5 - (field_type - TEMPLATE_FIELD_DIP2)]; - break; - - case TEMPLATE_FIELD_IP_TOS_PROTO: - data = pr->tos_proto; - data_m = pr->tos_proto_m; - break; - case TEMPLATE_FIELD_L4_SPORT: - data = pr->sport; - data_m = pr->sport_m; - break; - case TEMPLATE_FIELD_L4_DPORT: - data = pr->dport; - data_m = pr->dport_m; - break; - case TEMPLATE_FIELD_DSAP_SSAP: - data = pr->dsap_ssap; - data_m = pr->dsap_ssap_m; - break; - case TEMPLATE_FIELD_TCP_INFO: - data = pr->tcp_info; - data_m = pr->tcp_info_m; - break; - case TEMPLATE_FIELD_RANGE_CHK: - pr_warn("Warning: TEMPLATE_FIELD_RANGE_CHK: not configured\n"); - break; - default: - pr_info("%s: unknown field %d\n", __func__, field_type); - } - - // On the RTL9300, the mask fields are not word aligned! - if (!(i % 2)) { - r[5 - i / 2] = data; - r[12 - i / 2] |= ((u32)data_m << 8); - } else { - r[5 - i / 2] |= ((u32)data) << 16; - r[12 - i / 2] |= ((u32)data_m) << 24; - r[11 - i / 2] |= ((u32)data_m) >> 8; - } - } -} - -static void rtl930x_read_pie_fixed_fields(u32 r[], struct pie_rule *pr) -{ - pr->stacking_port = r[6] & BIT(31); - pr->spn = (r[6] >> 24) & 0x7f; - pr->mgnt_vlan = r[6] & BIT(23); - if (pr->phase == PHASE_IACL) - pr->dmac_hit_sw = r[6] & BIT(22); - else - pr->content_too_deep = r[6] & BIT(22); - pr->not_first_frag = r[6] & BIT(21); - pr->frame_type_l4 = (r[6] >> 18) & 7; - pr->frame_type = (r[6] >> 16) & 3; - pr->otag_fmt = (r[6] >> 15) & 1; - pr->itag_fmt = (r[6] >> 14) & 1; - pr->otag_exist = (r[6] >> 13) & 1; - pr->itag_exist = (r[6] >> 12) & 1; - pr->frame_type_l2 = (r[6] >> 10) & 3; - pr->igr_normal_port = (r[6] >> 9) & 1; - pr->tid = (r[6] >> 8) & 1; - - pr->stacking_port_m = r[12] & BIT(7); - pr->spn_m = r[12] & 0x7f; - pr->mgnt_vlan_m = r[13] & BIT(31); - if (pr->phase == PHASE_IACL) - pr->dmac_hit_sw_m = r[13] & BIT(30); - else - pr->content_too_deep_m = r[13] & BIT(30); - pr->not_first_frag_m = r[13] & BIT(29); - pr->frame_type_l4_m = (r[13] >> 26) & 7; - pr->frame_type_m = (r[13] >> 24) & 3; - pr->otag_fmt_m = r[13] & BIT(23); - pr->itag_fmt_m = r[13] & BIT(22); - pr->otag_exist_m = r[13] & BIT(21); - pr->itag_exist_m = r[13] & BIT (20); - pr->frame_type_l2_m = (r[13] >> 18) & 3; - pr->igr_normal_port_m = r[13] & BIT(17); - pr->tid_m = (r[13] >> 16) & 1; - - pr->valid = r[13] & BIT(15); - pr->cond_not = r[13] & BIT(14); - pr->cond_and1 = r[13] & BIT(13); - pr->cond_and2 = r[13] & BIT(12); -} - -static void rtl930x_write_pie_fixed_fields(u32 r[], struct pie_rule *pr) -{ - r[6] = pr->stacking_port ? BIT(31) : 0; - r[6] |= ((u32) (pr->spn & 0x7f)) << 24; - r[6] |= pr->mgnt_vlan ? BIT(23) : 0; - if (pr->phase == PHASE_IACL) - r[6] |= pr->dmac_hit_sw ? BIT(22) : 0; - else - r[6] |= pr->content_too_deep ? BIT(22) : 0; - r[6] |= pr->not_first_frag ? BIT(21) : 0; - r[6] |= ((u32) (pr->frame_type_l4 & 0x7)) << 18; - r[6] |= ((u32) (pr->frame_type & 0x3)) << 16; - r[6] |= pr->otag_fmt ? BIT(15) : 0; - r[6] |= pr->itag_fmt ? BIT(14) : 0; - r[6] |= pr->otag_exist ? BIT(13) : 0; - r[6] |= pr->itag_exist ? BIT(12) : 0; - r[6] |= ((u32) (pr->frame_type_l2 & 0x3)) << 10; - r[6] |= pr->igr_normal_port ? BIT(9) : 0; - r[6] |= ((u32) (pr->tid & 0x1)) << 8; - - r[12] |= pr->stacking_port_m ? BIT(7) : 0; - r[12] |= (u32) (pr->spn_m & 0x7f); - r[13] |= pr->mgnt_vlan_m ? BIT(31) : 0; - if (pr->phase == PHASE_IACL) - r[13] |= pr->dmac_hit_sw_m ? BIT(30) : 0; - else - r[13] |= pr->content_too_deep_m ? BIT(30) : 0; - r[13] |= pr->not_first_frag_m ? BIT(29) : 0; - r[13] |= ((u32) (pr->frame_type_l4_m & 0x7)) << 26; - r[13] |= ((u32) (pr->frame_type_m & 0x3)) << 24; - r[13] |= pr->otag_fmt_m ? BIT(23) : 0; - r[13] |= pr->itag_fmt_m ? BIT(22) : 0; - r[13] |= pr->otag_exist_m ? BIT(21) : 0; - r[13] |= pr->itag_exist_m ? BIT(20) : 0; - r[13] |= ((u32) (pr->frame_type_l2_m & 0x3)) << 18; - r[13] |= pr->igr_normal_port_m ? BIT(17) : 0; - r[13] |= ((u32) (pr->tid_m & 0x1)) << 16; - - r[13] |= pr->valid ? BIT(15) : 0; - r[13] |= pr->cond_not ? BIT(14) : 0; - r[13] |= pr->cond_and1 ? BIT(13) : 0; - r[13] |= pr->cond_and2 ? BIT(12) : 0; -} - -static void rtl930x_write_pie_action(u32 r[], struct pie_rule *pr) -{ - // Either drop or forward - if (pr->drop) { - r[14] |= BIT(24) | BIT(25) | BIT(26); // Do Green, Yellow and Red drops - // Actually DROP, not PERMIT in Green / Yellow / Red - r[14] |= BIT(23) | BIT(22) | BIT(20); - } else { - r[14] |= pr->fwd_sel ? BIT(27) : 0; - r[14] |= pr->fwd_act << 18; - r[14] |= BIT(14); // We overwrite any drop - } - if (pr->phase == PHASE_VACL) - r[14] |= pr->fwd_sa_lrn ? BIT(15) : 0; - r[13] |= pr->bypass_sel ? BIT(5) : 0; - r[13] |= pr->nopri_sel ? BIT(4) : 0; - r[13] |= pr->tagst_sel ? BIT(3) : 0; - r[13] |= pr->ovid_sel ? BIT(1) : 0; - r[14] |= pr->ivid_sel ? BIT(31) : 0; - r[14] |= pr->meter_sel ? BIT(30) : 0; - r[14] |= pr->mir_sel ? BIT(29) : 0; - r[14] |= pr->log_sel ? BIT(28) : 0; - - r[14] |= ((u32)(pr->fwd_data & 0x3fff)) << 3; - r[15] |= pr->log_octets ? BIT(31) : 0; - r[15] |= (u32)(pr->meter_data) << 23; - - r[15] |= ((u32)(pr->ivid_act) << 21) & 0x3; - r[15] |= ((u32)(pr->ivid_data) << 9) & 0xfff; - r[16] |= ((u32)(pr->ovid_act) << 30) & 0x3; - r[16] |= ((u32)(pr->ovid_data) & 0xfff) << 16; - r[16] |= (pr->mir_data & 0x3) << 6; - r[17] |= ((u32)(pr->tagst_data) & 0xf) << 28; - r[17] |= ((u32)(pr->nopri_data) & 0x7) << 25; - r[17] |= pr->bypass_ibc_sc ? BIT(16) : 0; -} - -void rtl930x_pie_rule_dump_raw(u32 r[]) -{ - pr_info("Raw IACL table entry:\n"); - pr_info("r 0 - 7: %08x %08x %08x %08x %08x %08x %08x %08x\n", - r[0], r[1], r[2], r[3], r[4], r[5], r[6], r[7]); - pr_info("r 8 - 15: %08x %08x %08x %08x %08x %08x %08x %08x\n", - r[8], r[9], r[10], r[11], r[12], r[13], r[14], r[15]); - pr_info("r 16 - 18: %08x %08x %08x\n", r[16], r[17], r[18]); - pr_info("Match : %08x %08x %08x %08x %08x %08x\n", r[0], r[1], r[2], r[3], r[4], r[5]); - pr_info("Fixed : %06x\n", r[6] >> 8); - pr_info("Match M: %08x %08x %08x %08x %08x %08x\n", - (r[6] << 24) | (r[7] >> 8), (r[7] << 24) | (r[8] >> 8), (r[8] << 24) | (r[9] >> 8), - (r[9] << 24) | (r[10] >> 8), (r[10] << 24) | (r[11] >> 8), - (r[11] << 24) | (r[12] >> 8)); - pr_info("R[13]: %08x\n", r[13]); - pr_info("Fixed M: %06x\n", ((r[12] << 16) | (r[13] >> 16)) & 0xffffff); - pr_info("Valid / not / and1 / and2 : %1x\n", (r[13] >> 12) & 0xf); - pr_info("r 13-16: %08x %08x %08x %08x\n", r[13], r[14], r[15], r[16]); -} - -static int rtl930x_pie_rule_write(struct rtl838x_switch_priv *priv, int idx, struct pie_rule *pr) -{ - // Access IACL table (2) via register 0 - struct table_reg *q = rtl_table_get(RTL9300_TBL_0, 2); - u32 r[19]; - int i; - int block = idx / PIE_BLOCK_SIZE; - u32 t_select = sw_r32(RTL930X_PIE_BLK_TMPLTE_CTRL(block)); - - pr_debug("%s: %d, t_select: %08x\n", __func__, idx, t_select); - - for (i = 0; i < 19; i++) - r[i] = 0; - - if (!pr->valid) { - rtl_table_write(q, idx); - rtl_table_release(q); - return 0; - } - rtl930x_write_pie_fixed_fields(r, pr); - - pr_debug("%s: template %d\n", __func__, (t_select >> (pr->tid * 4)) & 0xf); - rtl930x_write_pie_templated(r, pr, fixed_templates[(t_select >> (pr->tid * 4)) & 0xf]); - - rtl930x_write_pie_action(r, pr); - -// rtl930x_pie_rule_dump_raw(r); - - for (i = 0; i < 19; i++) - sw_w32(r[i], rtl_table_data(q, i)); - - rtl_table_write(q, idx); - rtl_table_release(q); - - return 0; -} - -static bool rtl930x_pie_templ_has(int t, enum template_field_id field_type) -{ - int i; - enum template_field_id ft; - - for (i = 0; i < N_FIXED_FIELDS; i++) { - ft = fixed_templates[t][i]; - if (field_type == ft) - return true; - } - - return false; -} - -/* - * Verify that the rule pr is compatible with a given template t in block block - * Note that this function is SoC specific since the values of e.g. TEMPLATE_FIELD_SIP0 - * depend on the SoC - */ -static int rtl930x_pie_verify_template(struct rtl838x_switch_priv *priv, - struct pie_rule *pr, int t, int block) -{ - int i; - - if (!pr->is_ipv6 && pr->sip_m && !rtl930x_pie_templ_has(t, TEMPLATE_FIELD_SIP0)) - return -1; - - if (!pr->is_ipv6 && pr->dip_m && !rtl930x_pie_templ_has(t, TEMPLATE_FIELD_DIP0)) - return -1; - - if (pr->is_ipv6) { - if ((pr->sip6_m.s6_addr32[0] || pr->sip6_m.s6_addr32[1] - || pr->sip6_m.s6_addr32[2] || pr->sip6_m.s6_addr32[3]) - && !rtl930x_pie_templ_has(t, TEMPLATE_FIELD_SIP2)) - return -1; - if ((pr->dip6_m.s6_addr32[0] || pr->dip6_m.s6_addr32[1] - || pr->dip6_m.s6_addr32[2] || pr->dip6_m.s6_addr32[3]) - && !rtl930x_pie_templ_has(t, TEMPLATE_FIELD_DIP2)) - return -1; - } - - if (ether_addr_to_u64(pr->smac) && !rtl930x_pie_templ_has(t, TEMPLATE_FIELD_SMAC0)) - return -1; - - if (ether_addr_to_u64(pr->dmac) && !rtl930x_pie_templ_has(t, TEMPLATE_FIELD_DMAC0)) - return -1; - - // TODO: Check more - - i = find_first_zero_bit(&priv->pie_use_bm[block * 4], PIE_BLOCK_SIZE); - - if (i >= PIE_BLOCK_SIZE) - return -1; - - return i + PIE_BLOCK_SIZE * block; -} - -static int rtl930x_pie_rule_add(struct rtl838x_switch_priv *priv, struct pie_rule *pr) -{ - int idx, block, j, t; - int min_block = 0; - int max_block = priv->n_pie_blocks / 2; - - if (pr->is_egress) { - min_block = max_block; - max_block = priv->n_pie_blocks; - } - pr_debug("In %s\n", __func__); - - mutex_lock(&priv->pie_mutex); - - for (block = min_block; block < max_block; block++) { - for (j = 0; j < 2; j++) { - t = (sw_r32(RTL930X_PIE_BLK_TMPLTE_CTRL(block)) >> (j * 4)) & 0xf; - pr_debug("Testing block %d, template %d, template id %d\n", block, j, t); - pr_debug("%s: %08x\n", - __func__, sw_r32(RTL930X_PIE_BLK_TMPLTE_CTRL(block))); - idx = rtl930x_pie_verify_template(priv, pr, t, block); - if (idx >= 0) - break; - } - if (j < 2) - break; - } - - if (block >= priv->n_pie_blocks) { - mutex_unlock(&priv->pie_mutex); - return -EOPNOTSUPP; - } - - pr_debug("Using block: %d, index %d, template-id %d\n", block, idx, j); - set_bit(idx, priv->pie_use_bm); - - pr->valid = true; - pr->tid = j; // Mapped to template number - pr->tid_m = 0x1; - pr->id = idx; - - rtl930x_pie_lookup_enable(priv, idx); - rtl930x_pie_rule_write(priv, idx, pr); - - mutex_unlock(&priv->pie_mutex); - return 0; -} - -/* - * Delete a range of Packet Inspection Engine rules - */ -static int rtl930x_pie_rule_del(struct rtl838x_switch_priv *priv, int index_from, int index_to) -{ - u32 v = (index_from << 1)| (index_to << 12 ) | BIT(0); - - pr_debug("%s: from %d to %d\n", __func__, index_from, index_to); - mutex_lock(&priv->reg_mutex); - - // Write from-to and execute bit into control register - sw_w32(v, RTL930X_PIE_CLR_CTRL); - - // Wait until command has completed - do { - } while (sw_r32(RTL930X_PIE_CLR_CTRL) & BIT(0)); - - mutex_unlock(&priv->reg_mutex); - return 0; -} - -static void rtl930x_pie_rule_rm(struct rtl838x_switch_priv *priv, struct pie_rule *pr) -{ - int idx = pr->id; - - rtl930x_pie_rule_del(priv, idx, idx); - clear_bit(idx, priv->pie_use_bm); -} - -static void rtl930x_pie_init(struct rtl838x_switch_priv *priv) -{ - int i; - u32 template_selectors; - - mutex_init(&priv->pie_mutex); - - pr_info("%s\n", __func__); - // Enable ACL lookup on all ports, including CPU_PORT - for (i = 0; i <= priv->cpu_port; i++) - sw_w32(1, RTL930X_ACL_PORT_LOOKUP_CTRL(i)); - - // Include IPG in metering - sw_w32_mask(0, 1, RTL930X_METER_GLB_CTRL); - - // Delete all present rules, block size is 128 on all SoC families - rtl930x_pie_rule_del(priv, 0, priv->n_pie_blocks * 128 - 1); - - // Assign blocks 0-7 to VACL phase (bit = 0), blocks 8-15 to IACL (bit = 1) - sw_w32(0xff00, RTL930X_PIE_BLK_PHASE_CTRL); - - // Enable predefined templates 0, 1 for first quarter of all blocks - template_selectors = 0 | (1 << 4); - for (i = 0; i < priv->n_pie_blocks / 4; i++) - sw_w32(template_selectors, RTL930X_PIE_BLK_TMPLTE_CTRL(i)); - - // Enable predefined templates 2, 3 for second quarter of all blocks - template_selectors = 2 | (3 << 4); - for (i = priv->n_pie_blocks / 4; i < priv->n_pie_blocks / 2; i++) - sw_w32(template_selectors, RTL930X_PIE_BLK_TMPLTE_CTRL(i)); - - // Enable predefined templates 0, 1 for third half of all blocks - template_selectors = 0 | (1 << 4); - for (i = priv->n_pie_blocks / 2; i < priv->n_pie_blocks * 3 / 4; i++) - sw_w32(template_selectors, RTL930X_PIE_BLK_TMPLTE_CTRL(i)); - - // Enable predefined templates 2, 3 for fourth quater of all blocks - template_selectors = 2 | (3 << 4); - for (i = priv->n_pie_blocks * 3 / 4; i < priv->n_pie_blocks; i++) - sw_w32(template_selectors, RTL930X_PIE_BLK_TMPLTE_CTRL(i)); - -} - -/* - * Sets up an egress interface for L3 actions - * Actions for ip4/6_icmp_redirect, ip4/6_pbr_icmp_redirect are: - * 0: FORWARD, 1: DROP, 2: TRAP2CPU, 3: COPY2CPU, 4: TRAP2MASTERCPU 5: COPY2MASTERCPU - * 6: HARDDROP - * idx is the index in the HW interface table: idx < 0x80 - */ -static void rtl930x_set_l3_egress_intf(int idx, struct rtl838x_l3_intf *intf) -{ - u32 u, v; - // Read L3_EGR_INTF table (4) via register RTL9300_TBL_1 - struct table_reg *r = rtl_table_get(RTL9300_TBL_1, 4); - - // The table has 2 registers - u = (intf->vid & 0xfff) << 9; - u |= (intf->smac_idx & 0x3f) << 3; - u |= (intf->ip4_mtu_id & 0x7); - - v = (intf->ip6_mtu_id & 0x7) << 28; - v |= (intf->ttl_scope & 0xff) << 20; - v |= (intf->hl_scope & 0xff) << 12; - v |= (intf->ip4_icmp_redirect & 0x7) << 9; - v |= (intf->ip6_icmp_redirect & 0x7)<< 6; - v |= (intf->ip4_pbr_icmp_redirect & 0x7) << 3; - v |= (intf->ip6_pbr_icmp_redirect & 0x7); - - sw_w32(u, rtl_table_data(r, 0)); - sw_w32(v, rtl_table_data(r, 1)); - - pr_info("%s writing to index %d: %08x %08x\n", __func__, idx, u, v); - rtl_table_write(r, idx & 0x7f); - rtl_table_release(r); -} - -/* - * Reads a MAC entry for L3 termination as entry point for routing - * from the hardware table - * idx is the index into the L3_ROUTER_MAC table - */ -static void rtl930x_get_l3_router_mac(u32 idx, struct rtl93xx_rt_mac *m) -{ - u32 v, w; - // Read L3_ROUTER_MAC table (0) via register RTL9300_TBL_1 - struct table_reg *r = rtl_table_get(RTL9300_TBL_1, 0); - - rtl_table_read(r, idx); - // The table has a size of 7 registers, 64 entries - v = sw_r32(rtl_table_data(r, 0)); - w = sw_r32(rtl_table_data(r, 3)); - m->valid = !!(v & BIT(20)); - if (!m->valid) - goto out; - - m->p_type = !!(v & BIT(19)); - m->p_id = (v >> 13) & 0x3f; // trunk id of port - m->vid = v & 0xfff; - m->vid_mask = w & 0xfff; - m->action = sw_r32(rtl_table_data(r, 6)) & 0x7; - m->mac_mask = ((((u64)sw_r32(rtl_table_data(r, 5))) << 32) & 0xffffffffffffULL) - | (sw_r32(rtl_table_data(r, 4))); - m->mac = ((((u64)sw_r32(rtl_table_data(r, 1))) << 32) & 0xffffffffffffULL) - | (sw_r32(rtl_table_data(r, 2))); - // Bits L3_INTF and BMSK_L3_INTF are 0 - -out: - rtl_table_release(r); -} - -/* - * Writes a MAC entry for L3 termination as entry point for routing - * into the hardware table - * idx is the index into the L3_ROUTER_MAC table - */ -static void rtl930x_set_l3_router_mac(u32 idx, struct rtl93xx_rt_mac *m) -{ - u32 v, w; - // Read L3_ROUTER_MAC table (0) via register RTL9300_TBL_1 - struct table_reg *r = rtl_table_get(RTL9300_TBL_1, 0); - - // The table has a size of 7 registers, 64 entries - v = BIT(20); // mac entry valid, port type is 0: individual - v |= (m->p_id & 0x3f) << 13; - v |= (m->vid & 0xfff); // Set the interface_id to the vlan id - - w = m->vid_mask; - w |= (m->p_id_mask & 0x3f) << 13; - - sw_w32(v, rtl_table_data(r, 0)); - sw_w32(w, rtl_table_data(r, 3)); - - // Set MAC address, L3_INTF (bit 12 in register 1) needs to be 0 - sw_w32((u32)(m->mac), rtl_table_data(r, 2)); - sw_w32(m->mac >> 32, rtl_table_data(r, 1)); - - // Set MAC address mask, BMSK_L3_INTF (bit 12 in register 5) needs to be 0 - sw_w32((u32)(m->mac_mask >> 32), rtl_table_data(r, 4)); - sw_w32((u32)m->mac_mask, rtl_table_data(r, 5)); - - sw_w32(m->action & 0x7, rtl_table_data(r, 6)); - - pr_debug("%s writing index %d: %08x %08x %08x %08x %08x %08x %08x\n", __func__, idx, - sw_r32(rtl_table_data(r, 0)), sw_r32(rtl_table_data(r, 1)), sw_r32(rtl_table_data(r, 2)), - sw_r32(rtl_table_data(r, 3)), sw_r32(rtl_table_data(r, 4)), sw_r32(rtl_table_data(r, 5)), - sw_r32(rtl_table_data(r, 6)) - ); - rtl_table_write(r, idx); - rtl_table_release(r); -} - -/* - * Get the Destination-MAC of an L3 egress interface or the Source MAC for routed packets - * from the SoC's L3_EGR_INTF_MAC table - * Indexes 0-2047 are DMACs, 2048+ are SMACs - */ -static u64 rtl930x_get_l3_egress_mac(u32 idx) -{ - u64 mac; - // Read L3_EGR_INTF_MAC table (2) via register RTL9300_TBL_2 - struct table_reg *r = rtl_table_get(RTL9300_TBL_2, 2); - - rtl_table_read(r, idx); - // The table has a size of 2 registers - mac = sw_r32(rtl_table_data(r, 0)); - mac <<= 32; - mac |= sw_r32(rtl_table_data(r, 1)); - rtl_table_release(r); - - return mac; -} -/* - * Set the Destination-MAC of a route or the Source MAC of an L3 egress interface - * in the SoC's L3_EGR_INTF_MAC table - * Indexes 0-2047 are DMACs, 2048+ are SMACs - */ -static void rtl930x_set_l3_egress_mac(u32 idx, u64 mac) -{ - // Access L3_EGR_INTF_MAC table (2) via register RTL9300_TBL_2 - struct table_reg *r = rtl_table_get(RTL9300_TBL_2, 2); - - // The table has a size of 2 registers - sw_w32(mac >> 32, rtl_table_data(r, 0)); - sw_w32(mac, rtl_table_data(r, 1)); - - pr_debug("%s: setting index %d to %016llx\n", __func__, idx, mac); - rtl_table_write(r, idx); - rtl_table_release(r); -} - -/* - * Configure L3 routing settings of the device: - * - MTUs - * - Egress interface - * - The router's MAC address on which routed packets are expected - * - MAC addresses used as source macs of routed packets - */ -int rtl930x_l3_setup(struct rtl838x_switch_priv *priv) -{ - int i; - - // Setup MTU with id 0 for default interface - for (i = 0; i < MAX_INTF_MTUS; i++) - priv->intf_mtu_count[i] = priv->intf_mtus[i] = 0; - - priv->intf_mtu_count[0] = 0; // Needs to stay forever - priv->intf_mtus[0] = DEFAULT_MTU; - sw_w32_mask(0xffff, DEFAULT_MTU, RTL930X_L3_IP_MTU_CTRL(0)); - sw_w32_mask(0xffff, DEFAULT_MTU, RTL930X_L3_IP6_MTU_CTRL(0)); - priv->intf_mtus[1] = DEFAULT_MTU; - sw_w32_mask(0xffff0000, DEFAULT_MTU << 16, RTL930X_L3_IP_MTU_CTRL(0)); - sw_w32_mask(0xffff0000, DEFAULT_MTU << 16, RTL930X_L3_IP6_MTU_CTRL(0)); - - sw_w32_mask(0xffff, DEFAULT_MTU, RTL930X_L3_IP_MTU_CTRL(1)); - sw_w32_mask(0xffff, DEFAULT_MTU, RTL930X_L3_IP6_MTU_CTRL(1)); - sw_w32_mask(0xffff0000, DEFAULT_MTU << 16, RTL930X_L3_IP_MTU_CTRL(1)); - sw_w32_mask(0xffff0000, DEFAULT_MTU << 16, RTL930X_L3_IP6_MTU_CTRL(1)); - - // Clear all source port MACs - for (i = 0; i < MAX_SMACS; i++) - rtl930x_set_l3_egress_mac(L3_EGRESS_DMACS + i, 0ULL); - - // Configure the default L3 hash algorithm - sw_w32_mask(BIT(2), 0, RTL930X_L3_HOST_TBL_CTRL); // Algorithm selection 0 = 0 - sw_w32_mask(0, BIT(3), RTL930X_L3_HOST_TBL_CTRL); // Algorithm selection 1 = 1 - - pr_info("L3_IPUC_ROUTE_CTRL %08x, IPMC_ROUTE %08x, IP6UC_ROUTE %08x, IP6MC_ROUTE %08x\n", - sw_r32(RTL930X_L3_IPUC_ROUTE_CTRL), sw_r32(RTL930X_L3_IPMC_ROUTE_CTRL), - sw_r32(RTL930X_L3_IP6UC_ROUTE_CTRL), sw_r32(RTL930X_L3_IP6MC_ROUTE_CTRL)); - sw_w32_mask(0, 1, RTL930X_L3_IPUC_ROUTE_CTRL); - sw_w32_mask(0, 1, RTL930X_L3_IP6UC_ROUTE_CTRL); - sw_w32_mask(0, 1, RTL930X_L3_IPMC_ROUTE_CTRL); - sw_w32_mask(0, 1, RTL930X_L3_IP6MC_ROUTE_CTRL); - - sw_w32(0x00002001, RTL930X_L3_IPUC_ROUTE_CTRL); - sw_w32(0x00014581, RTL930X_L3_IP6UC_ROUTE_CTRL); - sw_w32(0x00000501, RTL930X_L3_IPMC_ROUTE_CTRL); - sw_w32(0x00012881, RTL930X_L3_IP6MC_ROUTE_CTRL); - - pr_info("L3_IPUC_ROUTE_CTRL %08x, IPMC_ROUTE %08x, IP6UC_ROUTE %08x, IP6MC_ROUTE %08x\n", - sw_r32(RTL930X_L3_IPUC_ROUTE_CTRL), sw_r32(RTL930X_L3_IPMC_ROUTE_CTRL), - sw_r32(RTL930X_L3_IP6UC_ROUTE_CTRL), sw_r32(RTL930X_L3_IP6MC_ROUTE_CTRL)); - - // Trap non-ip traffic to the CPU-port (e.g. ARP so we stay reachable) - sw_w32_mask(0x3 << 8, 0x1 << 8, RTL930X_L3_IP_ROUTE_CTRL); - pr_info("L3_IP_ROUTE_CTRL %08x\n", sw_r32(RTL930X_L3_IP_ROUTE_CTRL)); - - // PORT_ISO_RESTRICT_ROUTE_CTRL ? - - // Do not use prefix route 0 because of HW limitations - set_bit(0, priv->route_use_bm); - - return 0; -} - -static u32 rtl930x_packet_cntr_read(int counter) -{ - u32 v; - - // Read LOG table (3) via register RTL9300_TBL_0 - struct table_reg *r = rtl_table_get(RTL9300_TBL_0, 3); - - pr_debug("In %s, id %d\n", __func__, counter); - rtl_table_read(r, counter / 2); - - pr_debug("Registers: %08x %08x\n", - sw_r32(rtl_table_data(r, 0)), sw_r32(rtl_table_data(r, 1))); - // The table has a size of 2 registers - if (counter % 2) - v = sw_r32(rtl_table_data(r, 0)); - else - v = sw_r32(rtl_table_data(r, 1)); - - rtl_table_release(r); - - return v; -} - -static void rtl930x_packet_cntr_clear(int counter) -{ - // Access LOG table (3) via register RTL9300_TBL_0 - struct table_reg *r = rtl_table_get(RTL9300_TBL_0, 3); - - pr_info("In %s, id %d\n", __func__, counter); - // The table has a size of 2 registers - if (counter % 2) - sw_w32(0, rtl_table_data(r, 0)); - else - sw_w32(0, rtl_table_data(r, 1)); - - rtl_table_write(r, counter / 2); - - rtl_table_release(r); -} - -void rtl930x_vlan_port_keep_tag_set(int port, bool keep_outer, bool keep_inner) -{ - sw_w32(FIELD_PREP(RTL930X_VLAN_PORT_TAG_STS_CTRL_EGR_OTAG_STS_MASK, - keep_outer ? RTL930X_VLAN_PORT_TAG_STS_TAGGED : RTL930X_VLAN_PORT_TAG_STS_UNTAG) | - FIELD_PREP(RTL930X_VLAN_PORT_TAG_STS_CTRL_EGR_ITAG_STS_MASK, - keep_inner ? RTL930X_VLAN_PORT_TAG_STS_TAGGED : RTL930X_VLAN_PORT_TAG_STS_UNTAG), - RTL930X_VLAN_PORT_TAG_STS_CTRL(port)); -} - -void rtl930x_vlan_port_pvidmode_set(int port, enum pbvlan_type type, enum pbvlan_mode mode) -{ - if (type == PBVLAN_TYPE_INNER) - sw_w32_mask(0x3, mode, RTL930X_VLAN_PORT_PB_VLAN + (port << 2)); - else - sw_w32_mask(0x3 << 14, mode << 14 ,RTL930X_VLAN_PORT_PB_VLAN + (port << 2)); -} - -void rtl930x_vlan_port_pvid_set(int port, enum pbvlan_type type, int pvid) -{ - if (type == PBVLAN_TYPE_INNER) - sw_w32_mask(0xfff << 2, pvid << 2, RTL930X_VLAN_PORT_PB_VLAN + (port << 2)); - else - sw_w32_mask(0xfff << 16, pvid << 16, RTL930X_VLAN_PORT_PB_VLAN + (port << 2)); -} - -static int rtl930x_set_ageing_time(unsigned long msec) -{ - int t = sw_r32(RTL930X_L2_AGE_CTRL); - - t &= 0x1FFFFF; - t = (t * 7) / 10; - pr_debug("L2 AGING time: %d sec\n", t); - - t = (msec / 100 + 6) / 7; - t = t > 0x1FFFFF ? 0x1FFFFF : t; - sw_w32_mask(0x1FFFFF, t, RTL930X_L2_AGE_CTRL); - pr_debug("Dynamic aging for ports: %x\n", sw_r32(RTL930X_L2_PORT_AGE_CTRL)); - - return 0; -} - -static void rtl930x_set_igr_filter(int port, enum igr_filter state) -{ - sw_w32_mask(0x3 << ((port & 0xf)<<1), state << ((port & 0xf)<<1), - RTL930X_VLAN_PORT_IGR_FLTR + (((port >> 4) << 2))); -} - -static void rtl930x_set_egr_filter(int port, enum egr_filter state) -{ - sw_w32_mask(0x1 << (port % 0x1D), state << (port % 0x1D), - RTL930X_VLAN_PORT_EGR_FLTR + (((port / 29) << 2))); -} - -void rtl930x_set_distribution_algorithm(int group, int algoidx, u32 algomsk) -{ - u32 l3shift = 0; - u32 newmask = 0; - - /* TODO: for now we set algoidx to 0 */ - algoidx = 0; - if (algomsk & TRUNK_DISTRIBUTION_ALGO_SIP_BIT) { - l3shift = 4; - newmask |= TRUNK_DISTRIBUTION_ALGO_L3_SIP_BIT; - } - if (algomsk & TRUNK_DISTRIBUTION_ALGO_DIP_BIT) { - l3shift = 4; - newmask |= TRUNK_DISTRIBUTION_ALGO_L3_DIP_BIT; - } - if (algomsk & TRUNK_DISTRIBUTION_ALGO_SRC_L4PORT_BIT) { - l3shift = 4; - newmask |= TRUNK_DISTRIBUTION_ALGO_L3_SRC_L4PORT_BIT; - } - if (algomsk & TRUNK_DISTRIBUTION_ALGO_SRC_L4PORT_BIT) { - l3shift = 4; - newmask |= TRUNK_DISTRIBUTION_ALGO_L3_SRC_L4PORT_BIT; - } - - if (l3shift == 4) { - if (algomsk & TRUNK_DISTRIBUTION_ALGO_SMAC_BIT) - newmask |= TRUNK_DISTRIBUTION_ALGO_L3_SMAC_BIT; - - if (algomsk & TRUNK_DISTRIBUTION_ALGO_DMAC_BIT) - newmask |= TRUNK_DISTRIBUTION_ALGO_L3_DMAC_BIT; - } else { - if (algomsk & TRUNK_DISTRIBUTION_ALGO_SMAC_BIT) - newmask |= TRUNK_DISTRIBUTION_ALGO_L2_SMAC_BIT; - if (algomsk & TRUNK_DISTRIBUTION_ALGO_DMAC_BIT) - newmask |= TRUNK_DISTRIBUTION_ALGO_L2_DMAC_BIT; - } - - sw_w32(newmask << l3shift, RTL930X_TRK_HASH_CTRL + (algoidx << 2)); -} - -static void rtl930x_led_init(struct rtl838x_switch_priv *priv) -{ - int i, pos; - u32 v, pm = 0, set; - u32 setlen; - const __be32 *led_set; - char set_name[9]; - struct device_node *node; - - pr_info("%s called\n", __func__); - node = of_find_compatible_node(NULL, NULL, "realtek,rtl9300-leds"); - if (!node) { - pr_info("%s No compatible LED node found\n", __func__); - return; - } - - for (i= 0; i < priv->cpu_port; i++) { - pos = (i << 1) % 32; - sw_w32_mask(0x3 << pos, 0, RTL930X_LED_PORT_FIB_SET_SEL_CTRL(i)); - sw_w32_mask(0x3 << pos, 0, RTL930X_LED_PORT_COPR_SET_SEL_CTRL(i)); - - if (!priv->ports[i].phy) - continue; - - v = 0x1; - if (priv->ports[i].is10G) - v = 0x3; - if (priv->ports[i].phy_is_integrated) - v = 0x1; - sw_w32_mask(0x3 << pos, v << pos, RTL930X_LED_PORT_NUM_CTRL(i)); - - pm |= BIT(i); - - set = priv->ports[i].led_set; - sw_w32_mask(0, set << pos, RTL930X_LED_PORT_COPR_SET_SEL_CTRL(i)); - sw_w32_mask(0, set << pos, RTL930X_LED_PORT_FIB_SET_SEL_CTRL(i)); - } - - for (i = 0; i < 4; i++) { - sprintf(set_name, "led_set%d", i); - led_set = of_get_property(node, set_name, &setlen); - if (!led_set || setlen != 16) - break; - v = be32_to_cpup(led_set) << 16 | be32_to_cpup(led_set + 1); - sw_w32(v, RTL930X_LED_SET0_0_CTRL - 4 - i * 8); - v = be32_to_cpup(led_set + 2) << 16 | be32_to_cpup(led_set + 3); - sw_w32(v, RTL930X_LED_SET0_0_CTRL - i * 8); - } - - // Set LED mode to serial (0x1) - sw_w32_mask(0x3, 0x1, RTL930X_LED_GLB_CTRL); - - // Set port type masks - sw_w32(pm, RTL930X_LED_PORT_COPR_MASK_CTRL); - sw_w32(pm, RTL930X_LED_PORT_FIB_MASK_CTRL); - sw_w32(pm, RTL930X_LED_PORT_COMBO_MASK_CTRL); - - for (i = 0; i < 24; i++) - pr_info("%s %08x: %08x\n",__func__, 0xbb00cc00 + i * 4, sw_r32(0xcc00 + i * 4)); -} - -const struct rtl838x_reg rtl930x_reg = { - .mask_port_reg_be = rtl838x_mask_port_reg, - .set_port_reg_be = rtl838x_set_port_reg, - .get_port_reg_be = rtl838x_get_port_reg, - .mask_port_reg_le = rtl838x_mask_port_reg, - .set_port_reg_le = rtl838x_set_port_reg, - .get_port_reg_le = rtl838x_get_port_reg, - .stat_port_rst = RTL930X_STAT_PORT_RST, - .stat_rst = RTL930X_STAT_RST, - .stat_port_std_mib = RTL930X_STAT_PORT_MIB_CNTR, - .traffic_enable = rtl930x_traffic_enable, - .traffic_disable = rtl930x_traffic_disable, - .traffic_get = rtl930x_traffic_get, - .traffic_set = rtl930x_traffic_set, - .l2_ctrl_0 = RTL930X_L2_CTRL, - .l2_ctrl_1 = RTL930X_L2_AGE_CTRL, - .l2_port_aging_out = RTL930X_L2_PORT_AGE_CTRL, - .set_ageing_time = rtl930x_set_ageing_time, - .smi_poll_ctrl = RTL930X_SMI_POLL_CTRL, // TODO: Difference to RTL9300_SMI_PRVTE_POLLING_CTRL - .l2_tbl_flush_ctrl = RTL930X_L2_TBL_FLUSH_CTRL, - .exec_tbl0_cmd = rtl930x_exec_tbl0_cmd, - .exec_tbl1_cmd = rtl930x_exec_tbl1_cmd, - .tbl_access_data_0 = rtl930x_tbl_access_data_0, - .isr_glb_src = RTL930X_ISR_GLB, - .isr_port_link_sts_chg = RTL930X_ISR_PORT_LINK_STS_CHG, - .imr_port_link_sts_chg = RTL930X_IMR_PORT_LINK_STS_CHG, - .imr_glb = RTL930X_IMR_GLB, - .vlan_tables_read = rtl930x_vlan_tables_read, - .vlan_set_tagged = rtl930x_vlan_set_tagged, - .vlan_set_untagged = rtl930x_vlan_set_untagged, - .vlan_profile_dump = rtl930x_vlan_profile_dump, - .vlan_profile_setup = rtl930x_vlan_profile_setup, - .vlan_fwd_on_inner = rtl930x_vlan_fwd_on_inner, - .set_vlan_igr_filter = rtl930x_set_igr_filter, - .set_vlan_egr_filter = rtl930x_set_egr_filter, - .stp_get = rtl930x_stp_get, - .stp_set = rtl930x_stp_set, - .mac_force_mode_ctrl = rtl930x_mac_force_mode_ctrl, - .mac_port_ctrl = rtl930x_mac_port_ctrl, - .l2_port_new_salrn = rtl930x_l2_port_new_salrn, - .l2_port_new_sa_fwd = rtl930x_l2_port_new_sa_fwd, - .mir_ctrl = RTL930X_MIR_CTRL, - .mir_dpm = RTL930X_MIR_DPM_CTRL, - .mir_spm = RTL930X_MIR_SPM_CTRL, - .mac_link_sts = RTL930X_MAC_LINK_STS, - .mac_link_dup_sts = RTL930X_MAC_LINK_DUP_STS, - .mac_link_spd_sts = rtl930x_mac_link_spd_sts, - .mac_rx_pause_sts = RTL930X_MAC_RX_PAUSE_STS, - .mac_tx_pause_sts = RTL930X_MAC_TX_PAUSE_STS, - .read_l2_entry_using_hash = rtl930x_read_l2_entry_using_hash, - .write_l2_entry_using_hash = rtl930x_write_l2_entry_using_hash, - .read_cam = rtl930x_read_cam, - .write_cam = rtl930x_write_cam, - .vlan_port_keep_tag_set = rtl930x_vlan_port_keep_tag_set, - .vlan_port_pvidmode_set = rtl930x_vlan_port_pvidmode_set, - .vlan_port_pvid_set = rtl930x_vlan_port_pvid_set, - .trk_mbr_ctr = rtl930x_trk_mbr_ctr, - .rma_bpdu_fld_pmask = RTL930X_RMA_BPDU_FLD_PMSK, - .init_eee = rtl930x_init_eee, - .port_eee_set = rtl930x_port_eee_set, - .eee_port_ability = rtl930x_eee_port_ability, - .l2_hash_seed = rtl930x_l2_hash_seed, - .l2_hash_key = rtl930x_l2_hash_key, - .read_mcast_pmask = rtl930x_read_mcast_pmask, - .write_mcast_pmask = rtl930x_write_mcast_pmask, - .pie_init = rtl930x_pie_init, - .pie_rule_write = rtl930x_pie_rule_write, - .pie_rule_add = rtl930x_pie_rule_add, - .pie_rule_rm = rtl930x_pie_rule_rm, - .l2_learning_setup = rtl930x_l2_learning_setup, - .packet_cntr_read = rtl930x_packet_cntr_read, - .packet_cntr_clear = rtl930x_packet_cntr_clear, - .route_read = rtl930x_route_read, - .route_write = rtl930x_route_write, - .host_route_write = rtl930x_host_route_write, - .l3_setup = rtl930x_l3_setup, - .set_l3_nexthop = rtl930x_set_l3_nexthop, - .get_l3_nexthop = rtl930x_get_l3_nexthop, - .get_l3_egress_mac = rtl930x_get_l3_egress_mac, - .set_l3_egress_mac = rtl930x_set_l3_egress_mac, - .find_l3_slot = rtl930x_find_l3_slot, - .route_lookup_hw = rtl930x_route_lookup_hw, - .get_l3_router_mac = rtl930x_get_l3_router_mac, - .set_l3_router_mac = rtl930x_set_l3_router_mac, - .set_l3_egress_intf = rtl930x_set_l3_egress_intf, - .set_distribution_algorithm = rtl930x_set_distribution_algorithm, - .led_init = rtl930x_led_init, -}; 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