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u-boot-brain/drivers/net/octeontx2/nix.c

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018 Marvell International Ltd.
*/
#include <dm.h>
#include <errno.h>
#include <log.h>
#include <malloc.h>
#include <memalign.h>
#include <misc.h>
#include <net.h>
#include <pci.h>
#include <watchdog.h>
#include <asm/arch/board.h>
#include <asm/arch/csrs/csrs-lmt.h>
#include <asm/io.h>
#include <asm/types.h>
#include <linux/delay.h>
#include <linux/log2.h>
#include <linux/types.h>
#include "nix.h"
#include "lmt.h"
#include "cgx.h"
/**
* NIX needs a lot of memory areas. Rather than handle all the failure cases,
* we'll use a wrapper around alloc that prints an error if a memory
* allocation fails.
*
* @param num_elements
* Number of elements to allocate
* @param elem_size Size of each element
* @param msg Text string to show when allocation fails
*
* @return A valid memory location or NULL on failure
*/
static void *nix_memalloc(int num_elements, size_t elem_size, const char *msg)
{
size_t alloc_size = num_elements * elem_size;
void *base = memalign(CONFIG_SYS_CACHELINE_SIZE, alloc_size);
if (!base)
printf("NIX: Mem alloc failed for %s (%d * %zu = %zu bytes)\n",
msg ? msg : __func__, num_elements, elem_size,
alloc_size);
else
memset(base, 0, alloc_size);
debug("NIX: Memory alloc for %s (%d * %zu = %zu bytes) at %p\n",
msg ? msg : __func__, num_elements, elem_size, alloc_size, base);
return base;
}
int npc_lf_setup(struct nix *nix)
{
int err;
err = npc_lf_admin_setup(nix);
if (err) {
printf("%s: Error setting up npc lf admin\n", __func__);
return err;
}
return 0;
}
static int npa_setup_pool(struct npa *npa, u32 pool_id,
size_t buffer_size, u32 queue_length, void *buffers[])
{
struct {
union npa_lf_aura_op_free0 f0;
union npa_lf_aura_op_free1 f1;
} aura_descr;
int index;
for (index = 0; index < queue_length; index++) {
buffers[index] = memalign(CONFIG_SYS_CACHELINE_SIZE,
buffer_size);
if (!buffers[index]) {
printf("%s: Out of memory %d, size: %zu\n",
__func__, index, buffer_size);
return -ENOMEM;
}
debug("%s: allocating buffer %d, addr %p size: %zu\n",
__func__, index, buffers[index], buffer_size);
/* Add the newly obtained pointer to the pool. 128 bit
* writes only.
*/
aura_descr.f0.s.addr = (u64)buffers[index];
aura_descr.f1.u = 0;
aura_descr.f1.s.aura = pool_id;
st128(npa->npa_base + NPA_LF_AURA_OP_FREE0(),
aura_descr.f0.u, aura_descr.f1.u);
}
return 0;
}
int npa_lf_setup(struct nix *nix)
{
struct rvu_pf *rvu = dev_get_priv(nix->dev);
struct nix_af *nix_af = nix->nix_af;
struct npa *npa;
union npa_af_const npa_af_const;
union npa_aura_s *aura;
union npa_pool_s *pool;
union rvu_func_addr_s block_addr;
int idx;
int stack_page_pointers;
int stack_page_bytes;
int err;
npa = (struct npa *)calloc(1, sizeof(struct npa));
if (!npa) {
printf("%s: out of memory for npa instance\n", __func__);
return -ENOMEM;
}
block_addr.u = 0;
block_addr.s.block = RVU_BLOCK_ADDR_E_NPA;
npa->npa_base = rvu->pf_base + block_addr.u;
npa->npa_af = nix_af->npa_af;
nix->npa = npa;
npa_af_const.u = npa_af_reg_read(npa->npa_af, NPA_AF_CONST());
stack_page_pointers = npa_af_const.s.stack_page_ptrs;
stack_page_bytes = npa_af_const.s.stack_page_bytes;
npa->stack_pages[NPA_POOL_RX] = (RQ_QLEN + stack_page_pointers - 1) /
stack_page_pointers;
npa->stack_pages[NPA_POOL_TX] = (SQ_QLEN + stack_page_pointers - 1) /
stack_page_pointers;
npa->stack_pages[NPA_POOL_SQB] = (SQB_QLEN + stack_page_pointers - 1) /
stack_page_pointers;
npa->pool_stack_pointers = stack_page_pointers;
npa->q_len[NPA_POOL_RX] = RQ_QLEN;
npa->q_len[NPA_POOL_TX] = SQ_QLEN;
npa->q_len[NPA_POOL_SQB] = SQB_QLEN;
npa->buf_size[NPA_POOL_RX] = MAX_MTU + CONFIG_SYS_CACHELINE_SIZE;
npa->buf_size[NPA_POOL_TX] = MAX_MTU + CONFIG_SYS_CACHELINE_SIZE;
npa->buf_size[NPA_POOL_SQB] = nix_af->sqb_size;
npa->aura_ctx = nix_memalloc(NPA_POOL_COUNT,
sizeof(union npa_aura_s),
"aura context");
if (!npa->aura_ctx) {
printf("%s: Out of memory for aura context\n", __func__);
return -ENOMEM;
}
for (idx = 0; idx < NPA_POOL_COUNT; idx++) {
npa->pool_ctx[idx] = nix_memalloc(1,
sizeof(union npa_pool_s),
"pool context");
if (!npa->pool_ctx[idx]) {
printf("%s: Out of memory for pool context\n",
__func__);
return -ENOMEM;
}
npa->pool_stack[idx] = nix_memalloc(npa->stack_pages[idx],
stack_page_bytes,
"pool stack");
if (!npa->pool_stack[idx]) {
printf("%s: Out of memory for pool stack\n", __func__);
return -ENOMEM;
}
}
err = npa_lf_admin_setup(npa, nix->lf, (dma_addr_t)npa->aura_ctx);
if (err) {
printf("%s: Error setting up NPA LF admin for lf %d\n",
__func__, nix->lf);
return err;
}
/* Set up the auras */
for (idx = 0; idx < NPA_POOL_COUNT; idx++) {
aura = npa->aura_ctx + (idx * sizeof(union npa_aura_s));
pool = npa->pool_ctx[idx];
debug("%s aura %p pool %p\n", __func__, aura, pool);
memset(aura, 0, sizeof(union npa_aura_s));
aura->s.fc_ena = 0;
aura->s.pool_addr = (u64)npa->pool_ctx[idx];
debug("%s aura.s.pool_addr %llx pool_addr %p\n", __func__,
aura->s.pool_addr, npa->pool_ctx[idx]);
aura->s.shift = 64 - __builtin_clzll(npa->q_len[idx]) - 8;
aura->s.count = npa->q_len[idx];
aura->s.limit = npa->q_len[idx];
aura->s.ena = 1;
err = npa_attach_aura(nix_af, nix->lf, aura, idx);
if (err)
return err;
memset(pool, 0, sizeof(*pool));
pool->s.fc_ena = 0;
pool->s.nat_align = 1;
pool->s.stack_base = (u64)(npa->pool_stack[idx]);
debug("%s pool.s.stack_base %llx stack_base %p\n", __func__,
pool->s.stack_base, npa->pool_stack[idx]);
pool->s.buf_size =
npa->buf_size[idx] / CONFIG_SYS_CACHELINE_SIZE;
pool->s.stack_max_pages = npa->stack_pages[idx];
pool->s.shift =
64 - __builtin_clzll(npa->pool_stack_pointers) - 8;
pool->s.ptr_start = 0;
pool->s.ptr_end = (1ULL << 40) - 1;
pool->s.ena = 1;
err = npa_attach_pool(nix_af, nix->lf, pool, idx);
if (err)
return err;
}
for (idx = 0; idx < NPA_POOL_COUNT; idx++) {
npa->buffers[idx] = nix_memalloc(npa->q_len[idx],
sizeof(void *),
"buffers");
if (!npa->buffers[idx]) {
printf("%s: Out of memory\n", __func__);
return -ENOMEM;
}
}
for (idx = 0; idx < NPA_POOL_COUNT; idx++) {
err = npa_setup_pool(npa, idx, npa->buf_size[idx],
npa->q_len[idx], npa->buffers[idx]);
if (err) {
printf("%s: Error setting up pool %d\n",
__func__, idx);
return err;
}
}
return 0;
}
int npa_lf_shutdown(struct nix *nix)
{
struct npa *npa = nix->npa;
int err;
int pool;
err = npa_lf_admin_shutdown(nix->nix_af, nix->lf, NPA_POOL_COUNT);
if (err) {
printf("%s: Error %d shutting down NPA LF admin\n",
__func__, err);
return err;
}
free(npa->aura_ctx);
npa->aura_ctx = NULL;
for (pool = 0; pool < NPA_POOL_COUNT; pool++) {
free(npa->pool_ctx[pool]);
npa->pool_ctx[pool] = NULL;
free(npa->pool_stack[pool]);
npa->pool_stack[pool] = NULL;
free(npa->buffers[pool]);
npa->buffers[pool] = NULL;
}
return 0;
}
int nix_lf_setup(struct nix *nix)
{
struct nix_af *nix_af = nix->nix_af;
int idx;
int err = -1;
/* Alloc NIX RQ HW context memory */
nix->rq_ctx_base = nix_memalloc(nix->rq_cnt, nix_af->rq_ctx_sz,
"RQ CTX");
if (!nix->rq_ctx_base)
goto error;
memset(nix->rq_ctx_base, 0, nix_af->rq_ctx_sz);
/* Alloc NIX SQ HW context memory */
nix->sq_ctx_base = nix_memalloc(nix->sq_cnt, nix_af->sq_ctx_sz,
"SQ CTX");
if (!nix->sq_ctx_base)
goto error;
memset(nix->sq_ctx_base, 0, nix_af->sq_ctx_sz);
/* Alloc NIX CQ HW context memory */
nix->cq_ctx_base = nix_memalloc(nix->cq_cnt, nix_af->cq_ctx_sz,
"CQ CTX");
if (!nix->cq_ctx_base)
goto error;
memset(nix->cq_ctx_base, 0, nix_af->cq_ctx_sz * NIX_CQ_COUNT);
/* Alloc NIX CQ Ring memory */
for (idx = 0; idx < NIX_CQ_COUNT; idx++) {
err = qmem_alloc(&nix->cq[idx], CQ_ENTRIES, CQ_ENTRY_SIZE);
if (err)
goto error;
}
/* Alloc memory for Qints HW contexts */
nix->qint_base = nix_memalloc(nix_af->qints, nix_af->qint_ctx_sz,
"Qint CTX");
if (!nix->qint_base)
goto error;
/* Alloc memory for CQints HW contexts */
nix->cint_base = nix_memalloc(nix_af->cints, nix_af->cint_ctx_sz,
"Cint CTX");
if (!nix->cint_base)
goto error;
/* Alloc NIX RSS HW context memory and config the base */
nix->rss_base = nix_memalloc(nix->rss_grps, nix_af->rsse_ctx_sz,
"RSS CTX");
if (!nix->rss_base)
goto error;
err = nix_lf_admin_setup(nix);
if (err) {
printf("%s: Error setting up LF\n", __func__);
goto error;
}
return 0;
error:
if (nix->rq_ctx_base)
free(nix->rq_ctx_base);
nix->rq_ctx_base = NULL;
if (nix->rq_ctx_base)
free(nix->rq_ctx_base);
nix->rq_ctx_base = NULL;
if (nix->sq_ctx_base)
free(nix->sq_ctx_base);
nix->sq_ctx_base = NULL;
if (nix->cq_ctx_base)
free(nix->cq_ctx_base);
nix->cq_ctx_base = NULL;
for (idx = 0; idx < NIX_CQ_COUNT; idx++)
qmem_free(&nix->cq[idx]);
return err;
}
int nix_lf_shutdown(struct nix *nix)
{
struct nix_af *nix_af = nix->nix_af;
int index;
int err;
err = nix_lf_admin_shutdown(nix_af, nix->lf, nix->cq_cnt,
nix->rq_cnt, nix->sq_cnt);
if (err) {
printf("%s: Error shutting down LF admin\n", __func__);
return err;
}
if (nix->rq_ctx_base)
free(nix->rq_ctx_base);
nix->rq_ctx_base = NULL;
if (nix->rq_ctx_base)
free(nix->rq_ctx_base);
nix->rq_ctx_base = NULL;
if (nix->sq_ctx_base)
free(nix->sq_ctx_base);
nix->sq_ctx_base = NULL;
if (nix->cq_ctx_base)
free(nix->cq_ctx_base);
nix->cq_ctx_base = NULL;
for (index = 0; index < NIX_CQ_COUNT; index++)
qmem_free(&nix->cq[index]);
debug("%s: nix lf %d reset --\n", __func__, nix->lf);
return 0;
}
struct nix *nix_lf_alloc(struct udevice *dev)
{
union rvu_func_addr_s block_addr;
struct nix *nix;
struct rvu_pf *rvu = dev_get_priv(dev);
struct rvu_af *rvu_af = dev_get_priv(rvu->afdev);
union rvu_pf_func_s pf_func;
int err;
debug("%s(%s )\n", __func__, dev->name);
nix = (struct nix *)calloc(1, sizeof(*nix));
if (!nix) {
printf("%s: Out of memory for nix instance\n", __func__);
return NULL;
}
nix->nix_af = rvu_af->nix_af;
block_addr.u = 0;
block_addr.s.block = RVU_BLOCK_ADDR_E_NIXX(0);
nix->nix_base = rvu->pf_base + block_addr.u;
block_addr.u = 0;
block_addr.s.block = RVU_BLOCK_ADDR_E_NPC;
nix->npc_base = rvu->pf_base + block_addr.u;
block_addr.u = 0;
block_addr.s.block = RVU_BLOCK_ADDR_E_LMT;
nix->lmt_base = rvu->pf_base + block_addr.u;
pf_func.u = 0;
pf_func.s.pf = rvu->pfid;
nix->pf_func = pf_func.u;
nix->lf = rvu->nix_lfid;
nix->pf = rvu->pfid;
nix->dev = dev;
nix->sq_cnt = 1;
nix->rq_cnt = 1;
nix->rss_grps = 1;
nix->cq_cnt = 2;
nix->xqe_sz = NIX_CQE_SIZE_W16;
nix->lmac = nix_get_cgx_lmac(nix->pf);
if (!nix->lmac) {
printf("%s: Error: could not find lmac for pf %d\n",
__func__, nix->pf);
free(nix);
return NULL;
}
nix->lmac->link_num =
NIX_LINK_E_CGXX_LMACX(nix->lmac->cgx->cgx_id,
nix->lmac->lmac_id);
nix->lmac->chan_num =
NIX_CHAN_E_CGXX_LMACX_CHX(nix->lmac->cgx->cgx_id,
nix->lmac->lmac_id, 0);
/* This is rx pkind in 1:1 mapping to NIX_LINK_E */
nix->lmac->pknd = nix->lmac->link_num;
cgx_lmac_set_pkind(nix->lmac, nix->lmac->lmac_id, nix->lmac->pknd);
debug("%s(%s CGX%x LMAC%x)\n", __func__, dev->name,
nix->lmac->cgx->cgx_id, nix->lmac->lmac_id);
debug("%s(%s Link %x Chan %x Pknd %x)\n", __func__, dev->name,
nix->lmac->link_num, nix->lmac->chan_num, nix->lmac->pknd);
err = npa_lf_setup(nix);
if (err)
return NULL;
err = npc_lf_setup(nix);
if (err)
return NULL;
err = nix_lf_setup(nix);
if (err)
return NULL;
return nix;
}
u64 npa_aura_op_alloc(struct npa *npa, u64 aura_id)
{
union npa_lf_aura_op_allocx op_allocx;
op_allocx.u = atomic_fetch_and_add64_nosync(npa->npa_base +
NPA_LF_AURA_OP_ALLOCX(0), aura_id);
return op_allocx.s.addr;
}
u64 nix_cq_op_status(struct nix *nix, u64 cq_id)
{
union nixx_lf_cq_op_status op_status;
s64 *reg = nix->nix_base + NIXX_LF_CQ_OP_STATUS();
op_status.u = atomic_fetch_and_add64_nosync(reg, cq_id << 32);
return op_status.u;
}
/* TX */
static inline void nix_write_lmt(struct nix *nix, void *buffer,
int num_words)
{
int i;
u64 *lmt_ptr = lmt_store_ptr(nix);
u64 *ptr = buffer;
debug("%s lmt_ptr %p %p\n", __func__, nix->lmt_base, lmt_ptr);
for (i = 0; i < num_words; i++) {
debug("%s data %llx lmt_ptr %p\n", __func__, ptr[i],
lmt_ptr + i);
lmt_ptr[i] = ptr[i];
}
}
void nix_cqe_tx_pkt_handler(struct nix *nix, void *cqe)
{
union nix_cqe_hdr_s *txcqe = (union nix_cqe_hdr_s *)cqe;
debug("%s: txcqe: %p\n", __func__, txcqe);
if (txcqe->s.cqe_type != NIX_XQE_TYPE_E_SEND) {
printf("%s: Error: Unsupported CQ header type %d\n",
__func__, txcqe->s.cqe_type);
return;
}
nix_pf_reg_write(nix, NIXX_LF_CQ_OP_DOOR(),
(NIX_CQ_TX << 32) | 1);
}
void nix_lf_flush_tx(struct udevice *dev)
{
struct rvu_pf *rvu = dev_get_priv(dev);
struct nix *nix = rvu->nix;
union nixx_lf_cq_op_status op_status;
u32 head, tail;
void *cq_tx_base = nix->cq[NIX_CQ_TX].base;
union nix_cqe_hdr_s *cqe;
/* ack tx cqe entries */
op_status.u = nix_cq_op_status(nix, NIX_CQ_TX);
head = op_status.s.head;
tail = op_status.s.tail;
head &= (nix->cq[NIX_CQ_TX].qsize - 1);
tail &= (nix->cq[NIX_CQ_TX].qsize - 1);
debug("%s cq tx head %d tail %d\n", __func__, head, tail);
while (head != tail) {
cqe = cq_tx_base + head * nix->cq[NIX_CQ_TX].entry_sz;
nix_cqe_tx_pkt_handler(nix, cqe);
op_status.u = nix_cq_op_status(nix, NIX_CQ_TX);
head = op_status.s.head;
tail = op_status.s.tail;
head &= (nix->cq[NIX_CQ_TX].qsize - 1);
tail &= (nix->cq[NIX_CQ_TX].qsize - 1);
debug("%s cq tx head %d tail %d\n", __func__, head, tail);
}
}
int nix_lf_xmit(struct udevice *dev, void *pkt, int pkt_len)
{
struct rvu_pf *rvu = dev_get_priv(dev);
struct nix *nix = rvu->nix;
struct nix_tx_dr tx_dr;
int dr_sz = (sizeof(struct nix_tx_dr) + 15) / 16 - 1;
s64 result;
void *packet;
nix_lf_flush_tx(dev);
memset((void *)&tx_dr, 0, sizeof(struct nix_tx_dr));
/* Dump TX packet in to NPA buffer */
packet = (void *)npa_aura_op_alloc(nix->npa, NPA_POOL_TX);
if (!packet) {
printf("%s TX buffers unavailable\n", __func__);
return -1;
}
memcpy(packet, pkt, pkt_len);
debug("%s TX buffer %p\n", __func__, packet);
tx_dr.hdr.s.aura = NPA_POOL_TX;
tx_dr.hdr.s.df = 0;
tx_dr.hdr.s.pnc = 1;
tx_dr.hdr.s.sq = 0;
tx_dr.hdr.s.total = pkt_len;
tx_dr.hdr.s.sizem1 = dr_sz - 2; /* FIXME - for now hdr+sg+sg1addr */
debug("%s dr_sz %d\n", __func__, dr_sz);
tx_dr.tx_sg.s.segs = 1;
tx_dr.tx_sg.s.subdc = NIX_SUBDC_E_SG;
tx_dr.tx_sg.s.seg1_size = pkt_len;
tx_dr.tx_sg.s.ld_type = NIX_SENDLDTYPE_E_LDT;
tx_dr.sg1_addr = (dma_addr_t)packet;
#define DEBUG_PKT
#ifdef DEBUG_PKT
debug("TX PKT Data\n");
for (int i = 0; i < pkt_len; i++) {
if (i && (i % 8 == 0))
debug("\n");
debug("%02x ", *((u8 *)pkt + i));
}
debug("\n");
#endif
do {
nix_write_lmt(nix, &tx_dr, (dr_sz - 1) * 2);
__iowmb();
result = lmt_submit((u64)(nix->nix_base +
NIXX_LF_OP_SENDX(0)));
WATCHDOG_RESET();
} while (result == 0);
return 0;
}
/* RX */
void nix_lf_flush_rx(struct udevice *dev)
{
struct rvu_pf *rvu = dev_get_priv(dev);
struct nix *nix = rvu->nix;
union nixx_lf_cq_op_status op_status;
void *cq_rx_base = nix->cq[NIX_CQ_RX].base;
struct nix_rx_dr *rx_dr;
union nix_rx_parse_s *rxparse;
u32 head, tail;
u32 rx_cqe_sz = nix->cq[NIX_CQ_RX].entry_sz;
u64 *seg;
/* flush rx cqe entries */
op_status.u = nix_cq_op_status(nix, NIX_CQ_RX);
head = op_status.s.head;
tail = op_status.s.tail;
head &= (nix->cq[NIX_CQ_RX].qsize - 1);
tail &= (nix->cq[NIX_CQ_RX].qsize - 1);
debug("%s cq rx head %d tail %d\n", __func__, head, tail);
while (head != tail) {
rx_dr = (struct nix_rx_dr *)cq_rx_base + head * rx_cqe_sz;
rxparse = &rx_dr->rx_parse;
debug("%s: rx parse: %p\n", __func__, rxparse);
debug("%s: rx parse: desc_sizem1 %x pkt_lenm1 %x\n",
__func__, rxparse->s.desc_sizem1, rxparse->s.pkt_lenm1);
seg = (dma_addr_t *)(&rx_dr->rx_sg + 1);
st128(nix->npa->npa_base + NPA_LF_AURA_OP_FREE0(),
seg[0], (1ULL << 63) | NPA_POOL_RX);
debug("%s return %llx to NPA\n", __func__, seg[0]);
nix_pf_reg_write(nix, NIXX_LF_CQ_OP_DOOR(),
(NIX_CQ_RX << 32) | 1);
op_status.u = nix_cq_op_status(nix, NIX_CQ_RX);
head = op_status.s.head;
tail = op_status.s.tail;
head &= (nix->cq[NIX_CQ_RX].qsize - 1);
tail &= (nix->cq[NIX_CQ_RX].qsize - 1);
debug("%s cq rx head %d tail %d\n", __func__, head, tail);
}
}
int nix_lf_free_pkt(struct udevice *dev, uchar *pkt, int pkt_len)
{
struct rvu_pf *rvu = dev_get_priv(dev);
struct nix *nix = rvu->nix;
/* Return rx packet to NPA */
debug("%s return %p to NPA\n", __func__, pkt);
st128(nix->npa->npa_base + NPA_LF_AURA_OP_FREE0(), (u64)pkt,
(1ULL << 63) | NPA_POOL_RX);
nix_pf_reg_write(nix, NIXX_LF_CQ_OP_DOOR(),
(NIX_CQ_RX << 32) | 1);
nix_lf_flush_tx(dev);
return 0;
}
int nix_lf_recv(struct udevice *dev, int flags, uchar **packetp)
{
struct rvu_pf *rvu = dev_get_priv(dev);
struct nix *nix = rvu->nix;
union nixx_lf_cq_op_status op_status;
void *cq_rx_base = nix->cq[NIX_CQ_RX].base;
struct nix_rx_dr *rx_dr;
union nix_rx_parse_s *rxparse;
void *pkt, *cqe;
int pkt_len = 0;
u64 *addr;
u32 head, tail;
/* fetch rx cqe entries */
op_status.u = nix_cq_op_status(nix, NIX_CQ_RX);
head = op_status.s.head;
tail = op_status.s.tail;
head &= (nix->cq[NIX_CQ_RX].qsize - 1);
tail &= (nix->cq[NIX_CQ_RX].qsize - 1);
debug("%s cq rx head %d tail %d\n", __func__, head, tail);
if (head == tail)
return -EAGAIN;
debug("%s: rx_base %p head %d sz %d\n", __func__, cq_rx_base, head,
nix->cq[NIX_CQ_RX].entry_sz);
cqe = cq_rx_base + head * nix->cq[NIX_CQ_RX].entry_sz;
rx_dr = (struct nix_rx_dr *)cqe;
rxparse = &rx_dr->rx_parse;
debug("%s: rx completion: %p\n", __func__, cqe);
debug("%s: rx dr: %p\n", __func__, rx_dr);
debug("%s: rx parse: %p\n", __func__, rxparse);
debug("%s: rx parse: desc_sizem1 %x pkt_lenm1 %x\n",
__func__, rxparse->s.desc_sizem1, rxparse->s.pkt_lenm1);
debug("%s: rx parse: pkind %x chan %x\n",
__func__, rxparse->s.pkind, rxparse->s.chan);
if (rx_dr->hdr.s.cqe_type != NIX_XQE_TYPE_E_RX) {
printf("%s: Error: Unsupported CQ header type in Rx %d\n",
__func__, rx_dr->hdr.s.cqe_type);
return -1;
}
pkt_len = rxparse->s.pkt_lenm1 + 1;
addr = (dma_addr_t *)(&rx_dr->rx_sg + 1);
pkt = (void *)addr[0];
debug("%s: segs: %d (%d@0x%llx, %d@0x%llx, %d@0x%llx)\n", __func__,
rx_dr->rx_sg.s.segs, rx_dr->rx_sg.s.seg1_size, addr[0],
rx_dr->rx_sg.s.seg2_size, addr[1],
rx_dr->rx_sg.s.seg3_size, addr[2]);
if (pkt_len < rx_dr->rx_sg.s.seg1_size + rx_dr->rx_sg.s.seg2_size +
rx_dr->rx_sg.s.seg3_size) {
debug("%s: Error: rx buffer size too small\n", __func__);
return -1;
}
__iowmb();
#define DEBUG_PKT
#ifdef DEBUG_PKT
debug("RX PKT Data\n");
for (int i = 0; i < pkt_len; i++) {
if (i && (i % 8 == 0))
debug("\n");
debug("%02x ", *((u8 *)pkt + i));
}
debug("\n");
#endif
*packetp = (uchar *)pkt;
return pkt_len;
}
int nix_lf_setup_mac(struct udevice *dev)
{
struct rvu_pf *rvu = dev_get_priv(dev);
struct nix *nix = rvu->nix;
struct eth_pdata *pdata = dev_get_plat(dev);
/* If lower level firmware fails to set proper MAC
* u-boot framework updates MAC to random address.
* Use this hook to update mac address in cgx lmac
* and call mac filter setup to update new address.
*/
if (memcmp(nix->lmac->mac_addr, pdata->enetaddr, ARP_HLEN)) {
memcpy(nix->lmac->mac_addr, pdata->enetaddr, 6);
eth_env_set_enetaddr_by_index("eth", dev_seq(rvu->dev),
pdata->enetaddr);
cgx_lmac_mac_filter_setup(nix->lmac);
/* Update user given MAC address to ATF for update
* in sh_fwdata to use in Linux.
*/
cgx_intf_set_macaddr(dev);
debug("%s: lMAC %pM\n", __func__, nix->lmac->mac_addr);
debug("%s: pMAC %pM\n", __func__, pdata->enetaddr);
}
debug("%s: setupMAC %pM\n", __func__, pdata->enetaddr);
return 0;
}
void nix_lf_halt(struct udevice *dev)
{
struct rvu_pf *rvu = dev_get_priv(dev);
struct nix *nix = rvu->nix;
cgx_lmac_rx_tx_enable(nix->lmac, nix->lmac->lmac_id, false);
mdelay(1);
/* Flush tx and rx descriptors */
nix_lf_flush_rx(dev);
nix_lf_flush_tx(dev);
}
int nix_lf_init(struct udevice *dev)
{
struct rvu_pf *rvu = dev_get_priv(dev);
struct nix *nix = rvu->nix;
struct lmac *lmac = nix->lmac;
int ret;
u64 link_sts;
u8 link, speed;
u16 errcode;
printf("Waiting for CGX%d LMAC%d [%s] link status...",
lmac->cgx->cgx_id, lmac->lmac_id,
lmac_type_to_str[lmac->lmac_type]);
if (lmac->init_pend) {
/* Bring up LMAC */
ret = cgx_lmac_link_enable(lmac, lmac->lmac_id,
true, &link_sts);
lmac->init_pend = 0;
} else {
ret = cgx_lmac_link_status(lmac, lmac->lmac_id, &link_sts);
}
if (ret) {
printf(" [Down]\n");
return -1;
}
link = link_sts & 0x1;
speed = (link_sts >> 2) & 0xf;
errcode = (link_sts >> 6) & 0x2ff;
debug("%s: link %x speed %x errcode %x\n",
__func__, link, speed, errcode);
/* Print link status */
printf(" [%s]\n", link ? lmac_speed_to_str[speed] : "Down");
if (!link)
return -1;
if (!lmac->init_pend)
cgx_lmac_rx_tx_enable(lmac, lmac->lmac_id, true);
return 0;
}
void nix_get_cgx_lmac_id(struct udevice *dev, int *cgxid, int *lmacid)
{
struct rvu_pf *rvu = dev_get_priv(dev);
struct nix *nix = rvu->nix;
struct lmac *lmac = nix->lmac;
*cgxid = lmac->cgx->cgx_id;
*lmacid = lmac->lmac_id;
}
void nix_print_mac_info(struct udevice *dev)
{
struct rvu_pf *rvu = dev_get_priv(dev);
struct nix *nix = rvu->nix;
struct lmac *lmac = nix->lmac;
printf(" CGX%d LMAC%d [%s]", lmac->cgx->cgx_id, lmac->lmac_id,
lmac_type_to_str[lmac->lmac_type]);
}
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