#include "xgene_enet_main.h"
static void xgene_cle_sband_to_hw(u8 frag, enum xgene_cle_prot_version ver,
enum xgene_cle_prot_type type, u32 len,
u32 *reg)
{
*reg = SET_VAL(SB_IPFRAG, frag) |
SET_VAL(SB_IPPROT, type) |
SET_VAL(SB_IPVER, ver) |
SET_VAL(SB_HDRLEN, len);
}
static void xgene_cle_idt_to_hw(struct xgene_enet_pdata *pdata,
u32 dstqid, u32 fpsel,
u32 nfpsel, u32 *idt_reg)
{
if (pdata->enet_id == XGENE_ENET1) {
*idt_reg = SET_VAL(IDT_DSTQID, dstqid) |
SET_VAL(IDT_FPSEL1, fpsel) |
SET_VAL(IDT_NFPSEL1, nfpsel);
} else {
*idt_reg = SET_VAL(IDT_DSTQID, dstqid) |
SET_VAL(IDT_FPSEL, fpsel) |
SET_VAL(IDT_NFPSEL, nfpsel);
}
}
static void xgene_cle_dbptr_to_hw(struct xgene_enet_pdata *pdata,
struct xgene_cle_dbptr *dbptr, u32 *buf)
{
buf[0] = SET_VAL(CLE_DROP, dbptr->drop);
buf[4] = SET_VAL(CLE_FPSEL, dbptr->fpsel) |
SET_VAL(CLE_NFPSEL, dbptr->nxtfpsel) |
SET_VAL(CLE_DSTQIDL, dbptr->dstqid);
buf[5] = SET_VAL(CLE_DSTQIDH, (u32)dbptr->dstqid >> CLE_DSTQIDL_LEN) |
SET_VAL(CLE_PRIORITY, dbptr->cle_priority);
}
static void xgene_cle_kn_to_hw(struct xgene_cle_ptree_kn *kn, u32 *buf)
{
u32 i, j = 0;
u32 data;
buf[j++] = SET_VAL(CLE_TYPE, kn->node_type);
for (i = 0; i < kn->num_keys; i++) {
struct xgene_cle_ptree_key *key = &kn->key[i];
if (!(i % 2)) {
buf[j] = SET_VAL(CLE_KN_PRIO, key->priority) |
SET_VAL(CLE_KN_RPTR, key->result_pointer);
} else {
data = SET_VAL(CLE_KN_PRIO, key->priority) |
SET_VAL(CLE_KN_RPTR, key->result_pointer);
buf[j++] |= (data << 16);
}
}
}
static void xgene_cle_dn_to_hw(const struct xgene_cle_ptree_ewdn *dn,
u32 *buf, u32 jb)
{
const struct xgene_cle_ptree_branch *br;
u32 i, j = 0;
u32 npp;
buf[j++] = SET_VAL(CLE_DN_TYPE, dn->node_type) |
SET_VAL(CLE_DN_LASTN, dn->last_node) |
SET_VAL(CLE_DN_HLS, dn->hdr_len_store) |
SET_VAL(CLE_DN_EXT, dn->hdr_extn) |
SET_VAL(CLE_DN_BSTOR, dn->byte_store) |
SET_VAL(CLE_DN_SBSTOR, dn->search_byte_store) |
SET_VAL(CLE_DN_RPTR, dn->result_pointer);
for (i = 0; i < dn->num_branches; i++) {
br = &dn->branch[i];
npp = br->next_packet_pointer;
if ((br->jump_rel == JMP_ABS) && (npp < CLE_PKTRAM_SIZE))
npp += jb;
buf[j++] = SET_VAL(CLE_BR_VALID, br->valid) |
SET_VAL(CLE_BR_NPPTR, npp) |
SET_VAL(CLE_BR_JB, br->jump_bw) |
SET_VAL(CLE_BR_JR, br->jump_rel) |
SET_VAL(CLE_BR_OP, br->operation) |
SET_VAL(CLE_BR_NNODE, br->next_node) |
SET_VAL(CLE_BR_NBR, br->next_branch);
buf[j++] = SET_VAL(CLE_BR_DATA, br->data) |
SET_VAL(CLE_BR_MASK, br->mask);
}
}
static int xgene_cle_poll_cmd_done(void __iomem *base,
enum xgene_cle_cmd_type cmd)
{
u32 status, loop = 10;
int ret = -EBUSY;
while (loop--) {
status = ioread32(base + INDCMD_STATUS);
if (status & cmd) {
ret = 0;
break;
}
usleep_range(1000, 2000);
}
return ret;
}
static int xgene_cle_dram_wr(struct xgene_enet_cle *cle, u32 *data, u8 nregs,
u32 index, enum xgene_cle_dram_type type,
enum xgene_cle_cmd_type cmd)
{
enum xgene_cle_parser parser = cle->active_parser;
void __iomem *base = cle->base;
u32 i, j, ind_addr;
u8 port, nparsers;
int ret = 0;
nparsers = (type >= PTREE_RAM) ? 1 : cle->parsers;
for (i = 0; i < nparsers; i++) {
port = i;
if ((type < PTREE_RAM) && (parser != PARSER_ALL))
port = parser;
ind_addr = XGENE_CLE_DRAM(type + (port * 4)) | index;
iowrite32(ind_addr, base + INDADDR);
for (j = 0; j < nregs; j++)
iowrite32(data[j], base + DATA_RAM0 + (j * 4));
iowrite32(cmd, base + INDCMD);
ret = xgene_cle_poll_cmd_done(base, cmd);
if (ret)
break;
}
return ret;
}
static void xgene_cle_enable_ptree(struct xgene_enet_pdata *pdata,
struct xgene_enet_cle *cle)
{
struct xgene_cle_ptree *ptree = &cle->ptree;
void __iomem *addr, *base = cle->base;
u32 offset = CLE_PORT_OFFSET;
u32 i;
ptree->start_pkt += cle->jump_bytes;
for (i = 0; i < cle->parsers; i++) {
if (cle->active_parser != PARSER_ALL)
addr = base + cle->active_parser * offset;
else
addr = base + (i * offset);
iowrite32(ptree->start_node & 0x3fff, addr + SNPTR0);
iowrite32(ptree->start_pkt & 0x1ff, addr + SPPTR0);
}
}
static int xgene_cle_setup_dbptr(struct xgene_enet_pdata *pdata,
struct xgene_enet_cle *cle)
{
struct xgene_cle_ptree *ptree = &cle->ptree;
u32 buf[CLE_DRAM_REGS];
u32 i;
int ret;
memset(buf, 0, sizeof(buf));
for (i = 0; i < ptree->num_dbptr; i++) {
xgene_cle_dbptr_to_hw(pdata, &ptree->dbptr[i], buf);
ret = xgene_cle_dram_wr(cle, buf, 6, i + ptree->start_dbptr,
DB_RAM, CLE_CMD_WR);
if (ret)
return ret;
}
return 0;
}
static const struct xgene_cle_ptree_ewdn xgene_init_ptree_dn[] = {
{
.node_type = EWDN,
.last_node = 0,
.hdr_len_store = 1,
.hdr_extn = NO_BYTE,
.byte_store = NO_BYTE,
.search_byte_store = NO_BYTE,
.result_pointer = DB_RES_DROP,
.num_branches = 2,
.branch = {
{
.valid = 1,
.next_packet_pointer = 22,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = PKT_PROT_NODE,
.next_branch = 0,
.data = 0x8,
.mask = 0x0
},
{
.valid = 0,
.next_packet_pointer = 262,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = LAST_NODE,
.next_branch = 0,
.data = 0x0,
.mask = 0xffff
}
},
},
{
.node_type = EWDN,
.last_node = 0,
.hdr_len_store = 1,
.hdr_extn = NO_BYTE,
.byte_store = NO_BYTE,
.search_byte_store = NO_BYTE,
.result_pointer = DB_RES_DROP,
.num_branches = 3,
.branch = {
{
.valid = 1,
.next_packet_pointer = 26,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_TCP_NODE,
.next_branch = 0,
.data = 0x0600,
.mask = 0x00ff
},
{
.valid = 1,
.next_packet_pointer = 26,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_UDP_NODE,
.next_branch = 0,
.data = 0x1100,
.mask = 0x00ff
},
{
.valid = 0,
.next_packet_pointer = 26,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_OTHERS_NODE,
.next_branch = 0,
.data = 0x0,
.mask = 0xffff
}
}
},
{
.node_type = EWDN,
.last_node = 0,
.hdr_len_store = 1,
.hdr_extn = NO_BYTE,
.byte_store = NO_BYTE,
.search_byte_store = BOTH_BYTES,
.result_pointer = DB_RES_DROP,
.num_branches = 6,
.branch = {
{
.valid = 0,
.next_packet_pointer = 28,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_TCP_NODE,
.next_branch = 1,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 30,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_TCP_NODE,
.next_branch = 2,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 32,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_TCP_NODE,
.next_branch = 3,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 34,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_TCP_NODE,
.next_branch = 4,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 36,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_TCP_NODE,
.next_branch = 5,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 256,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = LAST_NODE,
.next_branch = 0,
.data = 0x0,
.mask = 0xffff
}
}
},
{
.node_type = EWDN,
.last_node = 0,
.hdr_len_store = 1,
.hdr_extn = NO_BYTE,
.byte_store = NO_BYTE,
.search_byte_store = BOTH_BYTES,
.result_pointer = DB_RES_DROP,
.num_branches = 6,
.branch = {
{
.valid = 0,
.next_packet_pointer = 28,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_UDP_NODE,
.next_branch = 1,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 30,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_UDP_NODE,
.next_branch = 2,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 32,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_UDP_NODE,
.next_branch = 3,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 34,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_UDP_NODE,
.next_branch = 4,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 36,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_UDP_NODE,
.next_branch = 5,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 258,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = LAST_NODE,
.next_branch = 0,
.data = 0x0,
.mask = 0xffff
}
}
},
{
.node_type = EWDN,
.last_node = 0,
.hdr_len_store = 1,
.hdr_extn = NO_BYTE,
.byte_store = NO_BYTE,
.search_byte_store = BOTH_BYTES,
.result_pointer = DB_RES_DROP,
.num_branches = 6,
.branch = {
{
.valid = 0,
.next_packet_pointer = 28,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_OTHERS_NODE,
.next_branch = 1,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 30,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_OTHERS_NODE,
.next_branch = 2,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 32,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_OTHERS_NODE,
.next_branch = 3,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 34,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_OTHERS_NODE,
.next_branch = 4,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 36,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = RSS_IPV4_OTHERS_NODE,
.next_branch = 5,
.data = 0x0,
.mask = 0xffff
},
{
.valid = 0,
.next_packet_pointer = 260,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = LAST_NODE,
.next_branch = 0,
.data = 0x0,
.mask = 0xffff
}
}
},
{
.node_type = EWDN,
.last_node = 1,
.hdr_len_store = 1,
.hdr_extn = NO_BYTE,
.byte_store = NO_BYTE,
.search_byte_store = NO_BYTE,
.result_pointer = DB_RES_DROP,
.num_branches = 1,
.branch = {
{
.valid = 0,
.next_packet_pointer = 0,
.jump_bw = JMP_FW,
.jump_rel = JMP_ABS,
.operation = EQT,
.next_node = MAX_NODES,
.next_branch = 0,
.data = 0,
.mask = 0xffff
}
}
}
};
static int xgene_cle_setup_node(struct xgene_enet_pdata *pdata,
struct xgene_enet_cle *cle)
{
struct xgene_cle_ptree *ptree = &cle->ptree;
const struct xgene_cle_ptree_ewdn *dn = xgene_init_ptree_dn;
int num_dn = ARRAY_SIZE(xgene_init_ptree_dn);
struct xgene_cle_ptree_kn *kn = ptree->kn;
u32 buf[CLE_DRAM_REGS];
int i, j, ret;
memset(buf, 0, sizeof(buf));
for (i = 0; i < num_dn; i++) {
xgene_cle_dn_to_hw(&dn[i], buf, cle->jump_bytes);
ret = xgene_cle_dram_wr(cle, buf, 17, i + ptree->start_node,
PTREE_RAM, CLE_CMD_WR);
if (ret)
return ret;
}
memset(buf, 0, sizeof(buf));
for (j = i; j < (ptree->num_kn + num_dn); j++) {
xgene_cle_kn_to_hw(&kn[j - num_dn], buf);
ret = xgene_cle_dram_wr(cle, buf, 17, j + ptree->start_node,
PTREE_RAM, CLE_CMD_WR);
if (ret)
return ret;
}
return 0;
}
static int xgene_cle_setup_ptree(struct xgene_enet_pdata *pdata,
struct xgene_enet_cle *cle)
{
int ret;
ret = xgene_cle_setup_node(pdata, cle);
if (ret)
return ret;
ret = xgene_cle_setup_dbptr(pdata, cle);
if (ret)
return ret;
xgene_cle_enable_ptree(pdata, cle);
return 0;
}
static void xgene_cle_setup_def_dbptr(struct xgene_enet_pdata *pdata,
struct xgene_enet_cle *enet_cle,
struct xgene_cle_dbptr *dbptr,
u32 index, u8 priority)
{
void __iomem *base = enet_cle->base;
void __iomem *base_addr;
u32 buf[CLE_DRAM_REGS];
u32 def_cls, offset;
u32 i, j;
memset(buf, 0, sizeof(buf));
xgene_cle_dbptr_to_hw(pdata, dbptr, buf);
for (i = 0; i < enet_cle->parsers; i++) {
if (enet_cle->active_parser != PARSER_ALL) {
offset = enet_cle->active_parser *
CLE_PORT_OFFSET;
} else {
offset = i * CLE_PORT_OFFSET;
}
base_addr = base + DFCLSRESDB00 + offset;
for (j = 0; j < 6; j++)
iowrite32(buf[j], base_addr + (j * 4));
def_cls = ((priority & 0x7) << 10) | (index & 0x3ff);
iowrite32(def_cls, base + DFCLSRESDBPTR0 + offset);
}
}
static int xgene_cle_set_rss_sband(struct xgene_enet_cle *cle)
{
u32 idx = CLE_PKTRAM_SIZE / sizeof(u32);
u32 mac_hdr_len = ETH_HLEN;
u32 sband, reg = 0;
u32 ipv4_ihl = 5;
u32 hdr_len;
int ret;
hdr_len = (mac_hdr_len << 5) | ipv4_ihl;
xgene_cle_sband_to_hw(0, XGENE_CLE_IPV4, XGENE_CLE_TCP, hdr_len, ®);
sband = reg;
hdr_len = (mac_hdr_len << 5) | ipv4_ihl;
xgene_cle_sband_to_hw(1, XGENE_CLE_IPV4, XGENE_CLE_UDP, hdr_len, ®);
sband |= (reg << 16);
ret = xgene_cle_dram_wr(cle, &sband, 1, idx, PKT_RAM, CLE_CMD_WR);
if (ret)
return ret;
hdr_len = (mac_hdr_len << 5) | ipv4_ihl;
xgene_cle_sband_to_hw(0, XGENE_CLE_IPV4, XGENE_CLE_OTHER,
hdr_len, ®);
sband = reg;
hdr_len = (mac_hdr_len << 5);
xgene_cle_sband_to_hw(0, XGENE_CLE_IPV4, XGENE_CLE_OTHER,
hdr_len, ®);
sband |= (reg << 16);
ret = xgene_cle_dram_wr(cle, &sband, 1, idx + 1, PKT_RAM, CLE_CMD_WR);
if (ret)
return ret;
return 0;
}
static int xgene_cle_set_rss_skeys(struct xgene_enet_cle *cle)
{
u32 secret_key_ipv4[4];
int ret = 0;
get_random_bytes(secret_key_ipv4, 16);
ret = xgene_cle_dram_wr(cle, secret_key_ipv4, 4, 0,
RSS_IPV4_HASH_SKEY, CLE_CMD_WR);
return ret;
}
static int xgene_cle_set_rss_idt(struct xgene_enet_pdata *pdata)
{
u32 fpsel, dstqid, nfpsel, idt_reg, idx;
int i, ret = 0;
u16 pool_id;
for (i = 0; i < XGENE_CLE_IDT_ENTRIES; i++) {
idx = i % pdata->rxq_cnt;
pool_id = pdata->rx_ring[idx]->buf_pool->id;
fpsel = xgene_enet_get_fpsel(pool_id);
dstqid = xgene_enet_dst_ring_num(pdata->rx_ring[idx]);
nfpsel = 0;
if (pdata->rx_ring[idx]->page_pool) {
pool_id = pdata->rx_ring[idx]->page_pool->id;
nfpsel = xgene_enet_get_fpsel(pool_id);
}
idt_reg = 0;
xgene_cle_idt_to_hw(pdata, dstqid, fpsel, nfpsel, &idt_reg);
ret = xgene_cle_dram_wr(&pdata->cle, &idt_reg, 1, i,
RSS_IDT, CLE_CMD_WR);
if (ret)
return ret;
}
ret = xgene_cle_set_rss_skeys(&pdata->cle);
if (ret)
return ret;
return 0;
}
static int xgene_cle_setup_rss(struct xgene_enet_pdata *pdata)
{
struct xgene_enet_cle *cle = &pdata->cle;
void __iomem *base = cle->base;
u32 offset, val = 0;
int i, ret = 0;
offset = CLE_PORT_OFFSET;
for (i = 0; i < cle->parsers; i++) {
if (cle->active_parser != PARSER_ALL)
offset = cle->active_parser * CLE_PORT_OFFSET;
else
offset = i * CLE_PORT_OFFSET;
val = (RSS_IPV4_12B << 1) | 0x1;
writel(val, base + RSS_CTRL0 + offset);
}
ret = xgene_cle_set_rss_sband(cle);
if (ret)
return ret;
ret = xgene_cle_set_rss_idt(pdata);
if (ret)
return ret;
return 0;
}
static int xgene_enet_cle_init(struct xgene_enet_pdata *pdata)
{
struct xgene_enet_cle *enet_cle = &pdata->cle;
u32 def_qid, def_fpsel, def_nxtfpsel, pool_id;
struct xgene_cle_dbptr dbptr[DB_MAX_PTRS];
struct xgene_cle_ptree *ptree;
struct xgene_cle_ptree_kn kn;
int ret;
if (pdata->phy_mode != PHY_INTERFACE_MODE_XGMII)
return -EINVAL;
ptree = &enet_cle->ptree;
ptree->start_pkt = 12;
ret = xgene_cle_setup_rss(pdata);
if (ret) {
netdev_err(pdata->ndev, "RSS initialization failed\n");
return ret;
}
def_qid = xgene_enet_dst_ring_num(pdata->rx_ring[0]);
pool_id = pdata->rx_ring[0]->buf_pool->id;
def_fpsel = xgene_enet_get_fpsel(pool_id);
def_nxtfpsel = 0;
if (pdata->rx_ring[0]->page_pool) {
pool_id = pdata->rx_ring[0]->page_pool->id;
def_nxtfpsel = xgene_enet_get_fpsel(pool_id);
}
memset(dbptr, 0, sizeof(struct xgene_cle_dbptr) * DB_MAX_PTRS);
dbptr[DB_RES_ACCEPT].fpsel = def_fpsel;
dbptr[DB_RES_ACCEPT].nxtfpsel = def_nxtfpsel;
dbptr[DB_RES_ACCEPT].dstqid = def_qid;
dbptr[DB_RES_ACCEPT].cle_priority = 1;
dbptr[DB_RES_DEF].fpsel = def_fpsel;
dbptr[DB_RES_DEF].nxtfpsel = def_nxtfpsel;
dbptr[DB_RES_DEF].dstqid = def_qid;
dbptr[DB_RES_DEF].cle_priority = 7;
xgene_cle_setup_def_dbptr(pdata, enet_cle, &dbptr[DB_RES_DEF],
DB_RES_ACCEPT, 7);
dbptr[DB_RES_DROP].drop = 1;
memset(&kn, 0, sizeof(kn));
kn.node_type = KN;
kn.num_keys = 1;
kn.key[0].priority = 0;
kn.key[0].result_pointer = DB_RES_ACCEPT;
ptree->kn = &kn;
ptree->dbptr = dbptr;
ptree->num_kn = 1;
ptree->num_dbptr = DB_MAX_PTRS;
return xgene_cle_setup_ptree(pdata, enet_cle);
}
const struct xgene_cle_ops xgene_cle3in_ops = {
.cle_init = xgene_enet_cle_init,
};
