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u-boot/drivers/net/octeontx2/nix_af.c
Suneel Garapati 4684a7a43a net: Add NIC controller driver for OcteonTX2 
Adds support for Network Interface controllers found on
OcteonTX2 SoC platforms.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
2020-10-14 07:55:56 +02:00

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018 Marvell International Ltd.
*/
#include <dm.h>
#include <errno.h>
#include <malloc.h>
#include <memalign.h>
#include <misc.h>
#include <net.h>
#include <pci.h>
#include <watchdog.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/log2.h>
#include <asm/arch/board.h>
#include <asm/arch/csrs/csrs-npc.h>
#include <asm/arch/csrs/csrs-lmt.h>
#include <asm/io.h>
#include "nix.h"
#include "lmt.h"
#include "cgx.h"
static struct nix_aq_cq_dis cq_dis ALIGNED;
static struct nix_aq_rq_dis rq_dis ALIGNED;
static struct nix_aq_sq_dis sq_dis ALIGNED;
/***************
* NPA API
***************/
int npa_attach_aura(struct nix_af *nix_af, int lf,
const union npa_aura_s *desc, u32 aura_id)
{
struct npa_af *npa = nix_af->npa_af;
union npa_aq_inst_s *inst;
union npa_aq_res_s *res;
union npa_af_aq_status aq_stat;
union npa_aura_s *context;
u64 head;
ulong start;
debug("%s(%p, %d, %p, %u)\n", __func__, nix_af, lf, desc, aura_id);
aq_stat.u = npa_af_reg_read(npa, NPA_AF_AQ_STATUS());
head = aq_stat.s.head_ptr;
inst = (union npa_aq_inst_s *)(npa->aq.inst.base) + head;
res = (union npa_aq_res_s *)(npa->aq.res.base);
memset(inst, 0, sizeof(*inst));
inst->s.lf = lf;
inst->s.doneint = 0;
inst->s.ctype = NPA_AQ_CTYPE_E_AURA;
inst->s.op = NPA_AQ_INSTOP_E_INIT;
inst->s.res_addr = npa->aq.res.iova;
inst->s.cindex = aura_id;
context = (union npa_aura_s *)(npa->aq.res.base +
CONFIG_SYS_CACHELINE_SIZE);
memset(npa->aq.res.base, 0, npa->aq.res.entry_sz);
memcpy(context, desc, sizeof(union npa_aura_s));
__iowmb();
npa_af_reg_write(npa, NPA_AF_AQ_DOOR(), 1);
start = get_timer(0);
while ((res->s.compcode == NPA_AQ_COMP_E_NOTDONE) &&
(get_timer(start) < 1000))
WATCHDOG_RESET();
if (res->s.compcode != NPA_AQ_COMP_E_GOOD) {
printf("%s: Error: result 0x%x not good\n",
__func__, res->s.compcode);
return -1;
}
return 0;
}
int npa_attach_pool(struct nix_af *nix_af, int lf,
const union npa_pool_s *desc, u32 pool_id)
{
union npa_aq_inst_s *inst;
union npa_aq_res_s *res;
union npa_af_aq_status aq_stat;
struct npa_af *npa = nix_af->npa_af;
union npa_aura_s *context;
u64 head;
ulong start;
debug("%s(%p, %d, %p, %u)\n", __func__, nix_af, lf, desc, pool_id);
aq_stat.u = npa_af_reg_read(npa, NPA_AF_AQ_STATUS());
head = aq_stat.s.head_ptr;
inst = (union npa_aq_inst_s *)(npa->aq.inst.base) + head;
res = (union npa_aq_res_s *)(npa->aq.res.base);
memset(inst, 0, sizeof(*inst));
inst->s.cindex = pool_id;
inst->s.lf = lf;
inst->s.doneint = 0;
inst->s.ctype = NPA_AQ_CTYPE_E_POOL;
inst->s.op = NPA_AQ_INSTOP_E_INIT;
inst->s.res_addr = npa->aq.res.iova;
context = (union npa_aura_s *)(npa->aq.res.base +
CONFIG_SYS_CACHELINE_SIZE);
memset(npa->aq.res.base, 0, npa->aq.res.entry_sz);
memcpy(context, desc, sizeof(union npa_aura_s));
__iowmb();
npa_af_reg_write(npa, NPA_AF_AQ_DOOR(), 1);
start = get_timer(0);
while ((res->s.compcode == NPA_AQ_COMP_E_NOTDONE) &&
(get_timer(start) < 1000))
WATCHDOG_RESET();
if (res->s.compcode != NPA_AQ_COMP_E_GOOD) {
printf("%s: Error: result 0x%x not good\n",
__func__, res->s.compcode);
return -1;
}
return 0;
}
int npa_lf_admin_setup(struct npa *npa, int lf, dma_addr_t aura_base)
{
union npa_af_lf_rst lf_rst;
union npa_af_lfx_auras_cfg auras_cfg;
struct npa_af *npa_af = npa->npa_af;
debug("%s(%p, %d, 0x%llx)\n", __func__, npa_af, lf, aura_base);
lf_rst.u = 0;
lf_rst.s.exec = 1;
lf_rst.s.lf = lf;
npa_af_reg_write(npa_af, NPA_AF_LF_RST(), lf_rst.u);
do {
lf_rst.u = npa_af_reg_read(npa_af, NPA_AF_LF_RST());
WATCHDOG_RESET();
} while (lf_rst.s.exec);
/* Set Aura size and enable caching of contexts */
auras_cfg.u = npa_af_reg_read(npa_af, NPA_AF_LFX_AURAS_CFG(lf));
auras_cfg.s.loc_aura_size = NPA_AURA_SIZE_DEFAULT; //FIXME aura_size;
auras_cfg.s.caching = 1;
auras_cfg.s.rmt_aura_size = 0;
auras_cfg.s.rmt_aura_offset = 0;
auras_cfg.s.rmt_lf = 0;
npa_af_reg_write(npa_af, NPA_AF_LFX_AURAS_CFG(lf), auras_cfg.u);
/* Configure aura HW context base */
npa_af_reg_write(npa_af, NPA_AF_LFX_LOC_AURAS_BASE(lf),
aura_base);
return 0;
}
int npa_lf_admin_shutdown(struct nix_af *nix_af, int lf, u32 pool_count)
{
int pool_id;
u32 head;
union npa_aq_inst_s *inst;
union npa_aq_res_s *res;
struct npa_aq_pool_request {
union npa_aq_res_s resp ALIGNED;
union npa_pool_s p0 ALIGNED;
union npa_pool_s p1 ALIGNED;
} pool_req ALIGNED;
struct npa_aq_aura_request {
union npa_aq_res_s resp ALIGNED;
union npa_aura_s a0 ALIGNED;
union npa_aura_s a1 ALIGNED;
} aura_req ALIGNED;
union npa_af_aq_status aq_stat;
union npa_af_lf_rst lf_rst;
struct npa_af *npa = nix_af->npa_af;
ulong start;
for (pool_id = 0; pool_id < pool_count; pool_id++) {
aq_stat.u = npa_af_reg_read(npa, NPA_AF_AQ_STATUS());
head = aq_stat.s.head_ptr;
inst = (union npa_aq_inst_s *)(npa->aq.inst.base) + head;
res = &pool_req.resp;
memset(inst, 0, sizeof(*inst));
inst->s.cindex = pool_id;
inst->s.lf = lf;
inst->s.doneint = 0;
inst->s.ctype = NPA_AQ_CTYPE_E_POOL;
inst->s.op = NPA_AQ_INSTOP_E_WRITE;
inst->s.res_addr = (u64)&pool_req.resp;
memset((void *)&pool_req, 0, sizeof(pool_req));
pool_req.p0.s.ena = 0;
pool_req.p1.s.ena = 1; /* Write mask */
__iowmb();
npa_af_reg_write(npa, NPA_AF_AQ_DOOR(), 1);
start = get_timer(0);
while ((res->s.compcode == NPA_AQ_COMP_E_NOTDONE) &&
(get_timer(start) < 1000))
WATCHDOG_RESET();
if (res->s.compcode != NPA_AQ_COMP_E_GOOD) {
printf("%s: Error: result 0x%x not good for lf %d\n"
" aura id %d", __func__, res->s.compcode, lf,
pool_id);
return -1;
}
debug("%s(LF %d, pool id %d) disabled\n", __func__, lf,
pool_id);
}
for (pool_id = 0; pool_id < pool_count; pool_id++) {
aq_stat.u = npa_af_reg_read(npa, NPA_AF_AQ_STATUS());
head = aq_stat.s.head_ptr;
inst = (union npa_aq_inst_s *)(npa->aq.inst.base) + head;
res = &aura_req.resp;
memset(inst, 0, sizeof(*inst));
inst->s.cindex = pool_id;
inst->s.lf = lf;
inst->s.doneint = 0;
inst->s.ctype = NPA_AQ_CTYPE_E_AURA;
inst->s.op = NPA_AQ_INSTOP_E_WRITE;
inst->s.res_addr = (u64)&aura_req.resp;
memset((void *)&aura_req, 0, sizeof(aura_req));
aura_req.a0.s.ena = 0;
aura_req.a1.s.ena = 1; /* Write mask */
__iowmb();
npa_af_reg_write(npa, NPA_AF_AQ_DOOR(), 1);
start = get_timer(0);
while ((res->s.compcode == NPA_AQ_COMP_E_NOTDONE) &&
(get_timer(start) < 1000))
WATCHDOG_RESET();
if (res->s.compcode != NPA_AQ_COMP_E_GOOD) {
printf("%s: Error: result 0x%x not good for lf %d\n"
" aura id %d", __func__, res->s.compcode, lf,
pool_id);
return -1;
}
debug("%s(LF %d, aura id %d) disabled\n", __func__, lf,
pool_id);
}
/* Reset the LF */
lf_rst.u = 0;
lf_rst.s.exec = 1;
lf_rst.s.lf = lf;
npa_af_reg_write(npa, NPA_AF_LF_RST(), lf_rst.u);
do {
lf_rst.u = npa_af_reg_read(npa, NPA_AF_LF_RST());
WATCHDOG_RESET();
} while (lf_rst.s.exec);
return 0;
}
int npa_af_setup(struct npa_af *npa_af)
{
int err;
union npa_af_gen_cfg npa_cfg;
union npa_af_ndc_cfg ndc_cfg;
union npa_af_aq_cfg aq_cfg;
union npa_af_blk_rst blk_rst;
err = rvu_aq_alloc(&npa_af->aq, Q_COUNT(AQ_SIZE),
sizeof(union npa_aq_inst_s),
sizeof(union npa_aq_res_s));
if (err) {
printf("%s: Error %d allocating admin queue\n", __func__, err);
return err;
}
debug("%s: NPA admin queue allocated at %p %llx\n", __func__,
npa_af->aq.inst.base, npa_af->aq.inst.iova);
blk_rst.u = 0;
blk_rst.s.rst = 1;
npa_af_reg_write(npa_af, NPA_AF_BLK_RST(), blk_rst.u);
/* Wait for reset to complete */
do {
blk_rst.u = npa_af_reg_read(npa_af, NPA_AF_BLK_RST());
WATCHDOG_RESET();
} while (blk_rst.s.busy);
/* Set little Endian */
npa_cfg.u = npa_af_reg_read(npa_af, NPA_AF_GEN_CFG());
npa_cfg.s.af_be = 0;
npa_af_reg_write(npa_af, NPA_AF_GEN_CFG(), npa_cfg.u);
/* Enable NDC cache */
ndc_cfg.u = npa_af_reg_read(npa_af, NPA_AF_NDC_CFG());
ndc_cfg.s.ndc_bypass = 0;
npa_af_reg_write(npa_af, NPA_AF_NDC_CFG(), ndc_cfg.u);
/* Set up queue size */
aq_cfg.u = npa_af_reg_read(npa_af, NPA_AF_AQ_CFG());
aq_cfg.s.qsize = AQ_SIZE;
npa_af_reg_write(npa_af, NPA_AF_AQ_CFG(), aq_cfg.u);
/* Set up queue base address */
npa_af_reg_write(npa_af, NPA_AF_AQ_BASE(), npa_af->aq.inst.iova);
return 0;
}
int npa_af_shutdown(struct npa_af *npa_af)
{
union npa_af_blk_rst blk_rst;
blk_rst.u = 0;
blk_rst.s.rst = 1;
npa_af_reg_write(npa_af, NPA_AF_BLK_RST(), blk_rst.u);
/* Wait for reset to complete */
do {
blk_rst.u = npa_af_reg_read(npa_af, NPA_AF_BLK_RST());
WATCHDOG_RESET();
} while (blk_rst.s.busy);
rvu_aq_free(&npa_af->aq);
debug("%s: npa af reset --\n", __func__);
return 0;
}
/***************
* NIX API
***************/
/**
* Setup SMQ -> TL4 -> TL3 -> TL2 -> TL1 -> MAC mapping
*
* @param nix Handle to setup
*
* @return 0, or negative on failure
*/
static int nix_af_setup_sq(struct nix *nix)
{
union nixx_af_tl1x_schedule tl1_sched;
union nixx_af_tl2x_parent tl2_parent;
union nixx_af_tl3x_parent tl3_parent;
union nixx_af_tl3_tl2x_cfg tl3_tl2_cfg;
union nixx_af_tl3_tl2x_linkx_cfg tl3_tl2_link_cfg;
union nixx_af_tl4x_parent tl4_parent;
union nixx_af_tl4x_sdp_link_cfg tl4_sdp_link_cfg;
union nixx_af_smqx_cfg smq_cfg;
union nixx_af_mdqx_schedule mdq_sched;
union nixx_af_mdqx_parent mdq_parent;
union nixx_af_rx_linkx_cfg link_cfg;
int tl1_index = nix->lmac->link_num; /* NIX_LINK_E enum */
int tl2_index = tl1_index;
int tl3_index = tl2_index;
int tl4_index = tl3_index;
int smq_index = tl4_index;
struct nix_af *nix_af = nix->nix_af;
u64 offset = 0;
tl1_sched.u = nix_af_reg_read(nix_af,
NIXX_AF_TL1X_SCHEDULE(tl1_index));
tl1_sched.s.rr_quantum = MAX_MTU;
nix_af_reg_write(nix_af, NIXX_AF_TL1X_SCHEDULE(tl1_index),
tl1_sched.u);
tl2_parent.u = nix_af_reg_read(nix_af,
NIXX_AF_TL2X_PARENT(tl2_index));
tl2_parent.s.parent = tl1_index;
nix_af_reg_write(nix_af, NIXX_AF_TL2X_PARENT(tl2_index),
tl2_parent.u);
tl3_parent.u = nix_af_reg_read(nix_af,
NIXX_AF_TL3X_PARENT(tl3_index));
tl3_parent.s.parent = tl2_index;
nix_af_reg_write(nix_af, NIXX_AF_TL3X_PARENT(tl3_index),
tl3_parent.u);
tl3_tl2_cfg.u = nix_af_reg_read(nix_af,
NIXX_AF_TL3_TL2X_CFG(tl3_index));
tl3_tl2_cfg.s.express = 0;
nix_af_reg_write(nix_af, NIXX_AF_TL3_TL2X_CFG(tl3_index),
tl3_tl2_cfg.u);
offset = NIXX_AF_TL3_TL2X_LINKX_CFG(tl3_index,
nix->lmac->link_num);
tl3_tl2_link_cfg.u = nix_af_reg_read(nix_af, offset);
tl3_tl2_link_cfg.s.bp_ena = 1;
tl3_tl2_link_cfg.s.ena = 1;
tl3_tl2_link_cfg.s.relchan = 0;
offset = NIXX_AF_TL3_TL2X_LINKX_CFG(tl3_index,
nix->lmac->link_num);
nix_af_reg_write(nix_af, offset, tl3_tl2_link_cfg.u);
tl4_parent.u = nix_af_reg_read(nix_af,
NIXX_AF_TL4X_PARENT(tl4_index));
tl4_parent.s.parent = tl3_index;
nix_af_reg_write(nix_af, NIXX_AF_TL4X_PARENT(tl4_index),
tl4_parent.u);
offset = NIXX_AF_TL4X_SDP_LINK_CFG(tl4_index);
tl4_sdp_link_cfg.u = nix_af_reg_read(nix_af, offset);
tl4_sdp_link_cfg.s.bp_ena = 0;
tl4_sdp_link_cfg.s.ena = 0;
tl4_sdp_link_cfg.s.relchan = 0;
offset = NIXX_AF_TL4X_SDP_LINK_CFG(tl4_index);
nix_af_reg_write(nix_af, offset, tl4_sdp_link_cfg.u);
smq_cfg.u = nix_af_reg_read(nix_af, NIXX_AF_SMQX_CFG(smq_index));
smq_cfg.s.express = 0;
smq_cfg.s.lf = nix->lf;
smq_cfg.s.desc_shp_ctl_dis = 1;
smq_cfg.s.maxlen = MAX_MTU;
smq_cfg.s.minlen = NIX_MIN_HW_MTU;
nix_af_reg_write(nix_af, NIXX_AF_SMQX_CFG(smq_index), smq_cfg.u);
mdq_sched.u = nix_af_reg_read(nix_af,
NIXX_AF_MDQX_SCHEDULE(smq_index));
mdq_sched.s.rr_quantum = MAX_MTU;
offset = NIXX_AF_MDQX_SCHEDULE(smq_index);
nix_af_reg_write(nix_af, offset, mdq_sched.u);
mdq_parent.u = nix_af_reg_read(nix_af,
NIXX_AF_MDQX_PARENT(smq_index));
mdq_parent.s.parent = tl4_index;
nix_af_reg_write(nix_af, NIXX_AF_MDQX_PARENT(smq_index),
mdq_parent.u);
link_cfg.u = 0;
link_cfg.s.maxlen = NIX_MAX_HW_MTU;
link_cfg.s.minlen = NIX_MIN_HW_MTU;
nix_af_reg_write(nix->nix_af,
NIXX_AF_RX_LINKX_CFG(nix->lmac->link_num),
link_cfg.u);
return 0;
}
/**
* Issue a command to the NIX AF Admin Queue
*
* @param nix nix handle
* @param lf Logical function number for command
* @param op Operation
* @param ctype Context type
* @param cindex Context index
* @param resp Result pointer
*
* @return 0 for success, -EBUSY on failure
*/
static int nix_aq_issue_command(struct nix_af *nix_af,
int lf,
int op,
int ctype,
int cindex, union nix_aq_res_s *resp)
{
union nixx_af_aq_status aq_status;
union nix_aq_inst_s *aq_inst;
union nix_aq_res_s *result = resp;
ulong start;
debug("%s(%p, 0x%x, 0x%x, 0x%x, 0x%x, %p)\n", __func__, nix_af, lf,
op, ctype, cindex, resp);
aq_status.u = nix_af_reg_read(nix_af, NIXX_AF_AQ_STATUS());
aq_inst = (union nix_aq_inst_s *)(nix_af->aq.inst.base) +
aq_status.s.head_ptr;
aq_inst->u[0] = 0;
aq_inst->u[1] = 0;
aq_inst->s.op = op;
aq_inst->s.ctype = ctype;
aq_inst->s.lf = lf;
aq_inst->s.cindex = cindex;
aq_inst->s.doneint = 0;
aq_inst->s.res_addr = (u64)resp;
debug("%s: inst@%p: 0x%llx 0x%llx\n", __func__, aq_inst,
aq_inst->u[0], aq_inst->u[1]);
__iowmb();
/* Ring doorbell and wait for result */
nix_af_reg_write(nix_af, NIXX_AF_AQ_DOOR(), 1);
start = get_timer(0);
/* Wait for completion */
do {
WATCHDOG_RESET();
dsb();
} while (result->s.compcode == 0 && get_timer(start) < 2);
if (result->s.compcode != NIX_AQ_COMP_E_GOOD) {
printf("NIX:AQ fail or time out with code %d after %ld ms\n",
result->s.compcode, get_timer(start));
return -EBUSY;
}
return 0;
}
static int nix_attach_receive_queue(struct nix_af *nix_af, int lf)
{
struct nix_aq_rq_request rq_req ALIGNED;
int err;
debug("%s(%p, %d)\n", __func__, nix_af, lf);
memset(&rq_req, 0, sizeof(struct nix_aq_rq_request));
rq_req.rq.s.ena = 1;
rq_req.rq.s.spb_ena = 1;
rq_req.rq.s.ipsech_ena = 0;
rq_req.rq.s.ena_wqwd = 0;
rq_req.rq.s.cq = NIX_CQ_RX;
rq_req.rq.s.substream = 0; /* FIXME: Substream IDs? */
rq_req.rq.s.wqe_aura = -1; /* No WQE aura */
rq_req.rq.s.spb_aura = NPA_POOL_RX;
rq_req.rq.s.lpb_aura = NPA_POOL_RX;
/* U-Boot doesn't use WQE group for anything */
rq_req.rq.s.pb_caching = 1;
rq_req.rq.s.xqe_drop_ena = 0; /* Disable RED dropping */
rq_req.rq.s.spb_drop_ena = 0;
rq_req.rq.s.lpb_drop_ena = 0;
rq_req.rq.s.spb_sizem1 = (MAX_MTU / (3 * 8)) - 1; /* 512 bytes */
rq_req.rq.s.lpb_sizem1 = (MAX_MTU / 8) - 1;
rq_req.rq.s.first_skip = 0;
rq_req.rq.s.later_skip = 0;
rq_req.rq.s.xqe_imm_copy = 0;
rq_req.rq.s.xqe_hdr_split = 0;
rq_req.rq.s.xqe_drop = 0;
rq_req.rq.s.xqe_pass = 0;
rq_req.rq.s.wqe_pool_drop = 0; /* No WQE pool */
rq_req.rq.s.wqe_pool_pass = 0; /* No WQE pool */
rq_req.rq.s.spb_aura_drop = 255;
rq_req.rq.s.spb_aura_pass = 255;
rq_req.rq.s.spb_pool_drop = 0;
rq_req.rq.s.spb_pool_pass = 0;
rq_req.rq.s.lpb_aura_drop = 255;
rq_req.rq.s.lpb_aura_pass = 255;
rq_req.rq.s.lpb_pool_drop = 0;
rq_req.rq.s.lpb_pool_pass = 0;
rq_req.rq.s.qint_idx = 0;
err = nix_aq_issue_command(nix_af, lf,
NIX_AQ_INSTOP_E_INIT,
NIX_AQ_CTYPE_E_RQ,
0, &rq_req.resp);
if (err) {
printf("%s: Error requesting send queue\n", __func__);
return err;
}
return 0;
}
static int nix_attach_send_queue(struct nix *nix)
{
struct nix_af *nix_af = nix->nix_af;
struct nix_aq_sq_request sq_req ALIGNED;
int err;
debug("%s(%p)\n", __func__, nix_af);
err = nix_af_setup_sq(nix);
memset(&sq_req, 0, sizeof(sq_req));
sq_req.sq.s.ena = 1;
sq_req.sq.s.cq_ena = 1;
sq_req.sq.s.max_sqe_size = NIX_MAXSQESZ_E_W16;
sq_req.sq.s.substream = 0; // FIXME: Substream IDs?
sq_req.sq.s.sdp_mcast = 0;
sq_req.sq.s.cq = NIX_CQ_TX;
sq_req.sq.s.cq_limit = 0;
sq_req.sq.s.smq = nix->lmac->link_num; // scheduling index
sq_req.sq.s.sso_ena = 0;
sq_req.sq.s.smq_rr_quantum = MAX_MTU / 4;
sq_req.sq.s.default_chan = nix->lmac->chan_num;
sq_req.sq.s.sqe_stype = NIX_STYPE_E_STP;
sq_req.sq.s.qint_idx = 0;
sq_req.sq.s.sqb_aura = NPA_POOL_SQB;
err = nix_aq_issue_command(nix_af, nix->lf,
NIX_AQ_INSTOP_E_INIT,
NIX_AQ_CTYPE_E_SQ,
0, &sq_req.resp);
if (err) {
printf("%s: Error requesting send queue\n", __func__);
return err;
}
return 0;
}
static int nix_attach_completion_queue(struct nix *nix, int cq_idx)
{
struct nix_af *nix_af = nix->nix_af;
struct nix_aq_cq_request cq_req ALIGNED;
int err;
debug("%s(%p)\n", __func__, nix_af);
memset(&cq_req, 0, sizeof(cq_req));
cq_req.cq.s.ena = 1;
cq_req.cq.s.bpid = nix->lmac->pknd;
cq_req.cq.s.substream = 0; /* FIXME: Substream IDs? */
cq_req.cq.s.drop_ena = 0;
cq_req.cq.s.caching = 1;
cq_req.cq.s.qsize = CQS_QSIZE;
cq_req.cq.s.drop = 255 * 7 / 8;
cq_req.cq.s.qint_idx = 0;
cq_req.cq.s.cint_idx = 0;
cq_req.cq.s.base = nix->cq[cq_idx].iova;
debug("%s: CQ(%d) base %p\n", __func__, cq_idx,
nix->cq[cq_idx].base);
err = nix_aq_issue_command(nix_af, nix->lf,
NIX_AQ_INSTOP_E_INIT,
NIX_AQ_CTYPE_E_CQ,
cq_idx, &cq_req.resp);
if (err) {
printf("%s: Error requesting completion queue\n", __func__);
return err;
}
debug("%s: CQ(%d) allocated, base %p\n", __func__, cq_idx,
nix->cq[cq_idx].base);
return 0;
}
int nix_lf_admin_setup(struct nix *nix)
{
union nixx_af_lfx_rqs_cfg rqs_cfg;
union nixx_af_lfx_sqs_cfg sqs_cfg;
union nixx_af_lfx_cqs_cfg cqs_cfg;
union nixx_af_lfx_rss_cfg rss_cfg;
union nixx_af_lfx_cints_cfg cints_cfg;
union nixx_af_lfx_qints_cfg qints_cfg;
union nixx_af_lfx_rss_grpx rss_grp;
union nixx_af_lfx_tx_cfg2 tx_cfg2;
union nixx_af_lfx_cfg lfx_cfg;
union nixx_af_lf_rst lf_rst;
u32 index;
struct nix_af *nix_af = nix->nix_af;
int err;
/* Reset the LF */
lf_rst.u = 0;
lf_rst.s.lf = nix->lf;
lf_rst.s.exec = 1;
nix_af_reg_write(nix_af, NIXX_AF_LF_RST(), lf_rst.u);
do {
lf_rst.u = nix_af_reg_read(nix_af, NIXX_AF_LF_RST());
WATCHDOG_RESET();
} while (lf_rst.s.exec);
/* Config NIX RQ HW context and base*/
nix_af_reg_write(nix_af, NIXX_AF_LFX_RQS_BASE(nix->lf),
(u64)nix->rq_ctx_base);
/* Set caching and queue count in HW */
rqs_cfg.u = nix_af_reg_read(nix_af, NIXX_AF_LFX_RQS_CFG(nix->lf));
rqs_cfg.s.caching = 1;
rqs_cfg.s.max_queuesm1 = nix->rq_cnt - 1;
nix_af_reg_write(nix_af, NIXX_AF_LFX_RQS_CFG(nix->lf), rqs_cfg.u);
/* Config NIX SQ HW context and base*/
nix_af_reg_write(nix_af, NIXX_AF_LFX_SQS_BASE(nix->lf),
(u64)nix->sq_ctx_base);
sqs_cfg.u = nix_af_reg_read(nix_af, NIXX_AF_LFX_SQS_CFG(nix->lf));
sqs_cfg.s.caching = 1;
sqs_cfg.s.max_queuesm1 = nix->sq_cnt - 1;
nix_af_reg_write(nix_af, NIXX_AF_LFX_SQS_CFG(nix->lf), sqs_cfg.u);
/* Config NIX CQ HW context and base*/
nix_af_reg_write(nix_af, NIXX_AF_LFX_CQS_BASE(nix->lf),
(u64)nix->cq_ctx_base);
cqs_cfg.u = nix_af_reg_read(nix_af, NIXX_AF_LFX_CQS_CFG(nix->lf));
cqs_cfg.s.caching = 1;
cqs_cfg.s.max_queuesm1 = nix->cq_cnt - 1;
nix_af_reg_write(nix_af, NIXX_AF_LFX_CQS_CFG(nix->lf), cqs_cfg.u);
/* Config NIX RSS HW context and base */
nix_af_reg_write(nix_af, NIXX_AF_LFX_RSS_BASE(nix->lf),
(u64)nix->rss_base);
rss_cfg.u = nix_af_reg_read(nix_af, NIXX_AF_LFX_RSS_CFG(nix->lf));
rss_cfg.s.ena = 1;
rss_cfg.s.size = ilog2(nix->rss_sz) / 256;
nix_af_reg_write(nix_af, NIXX_AF_LFX_RSS_CFG(nix->lf), rss_cfg.u);
for (index = 0; index < nix->rss_grps; index++) {
rss_grp.u = 0;
rss_grp.s.sizem1 = 0x7;
rss_grp.s.offset = nix->rss_sz * index;
nix_af_reg_write(nix_af,
NIXX_AF_LFX_RSS_GRPX(nix->lf, index),
rss_grp.u);
}
/* Config CQints HW contexts and base */
nix_af_reg_write(nix_af, NIXX_AF_LFX_CINTS_BASE(nix->lf),
(u64)nix->cint_base);
cints_cfg.u = nix_af_reg_read(nix_af,
NIXX_AF_LFX_CINTS_CFG(nix->lf));
cints_cfg.s.caching = 1;
nix_af_reg_write(nix_af, NIXX_AF_LFX_CINTS_CFG(nix->lf),
cints_cfg.u);
/* Config Qints HW context and base */
nix_af_reg_write(nix_af, NIXX_AF_LFX_QINTS_BASE(nix->lf),
(u64)nix->qint_base);
qints_cfg.u = nix_af_reg_read(nix_af,
NIXX_AF_LFX_QINTS_CFG(nix->lf));
qints_cfg.s.caching = 1;
nix_af_reg_write(nix_af, NIXX_AF_LFX_QINTS_CFG(nix->lf),
qints_cfg.u);
debug("%s(%p, %d, %d)\n", __func__, nix_af, nix->lf, nix->pf);
/* Enable LMTST for this NIX LF */
tx_cfg2.u = nix_af_reg_read(nix_af, NIXX_AF_LFX_TX_CFG2(nix->lf));
tx_cfg2.s.lmt_ena = 1;
nix_af_reg_write(nix_af, NIXX_AF_LFX_TX_CFG2(nix->lf), tx_cfg2.u);
/* Use 16-word XQEs, write the npa pf_func number only */
lfx_cfg.u = nix_af_reg_read(nix_af, NIXX_AF_LFX_CFG(nix->lf));
lfx_cfg.s.xqe_size = NIX_XQESZ_E_W16;
lfx_cfg.s.npa_pf_func = nix->pf_func;
nix_af_reg_write(nix_af, NIXX_AF_LFX_CFG(nix->lf), lfx_cfg.u);
nix_af_reg_write(nix_af, NIXX_AF_LFX_RX_CFG(nix->lf), 0);
for (index = 0; index < nix->cq_cnt; index++) {
err = nix_attach_completion_queue(nix, index);
if (err) {
printf("%s: Error attaching completion queue %d\n",
__func__, index);
return err;
}
}
for (index = 0; index < nix->rq_cnt; index++) {
err = nix_attach_receive_queue(nix_af, nix->lf);
if (err) {
printf("%s: Error attaching receive queue %d\n",
__func__, index);
return err;
}
}
for (index = 0; index < nix->sq_cnt; index++) {
err = nix_attach_send_queue(nix);
if (err) {
printf("%s: Error attaching send queue %d\n",
__func__, index);
return err;
}
}
return 0;
}
int nix_lf_admin_shutdown(struct nix_af *nix_af, int lf,
u32 cq_count, u32 rq_count, u32 sq_count)
{
union nixx_af_rx_sw_sync sw_sync;
union nixx_af_lf_rst lf_rst;
int index, err;
/* Flush all tx packets */
sw_sync.u = 0;
sw_sync.s.ena = 1;
nix_af_reg_write(nix_af, NIXX_AF_RX_SW_SYNC(), sw_sync.u);
do {
sw_sync.u = nix_af_reg_read(nix_af, NIXX_AF_RX_SW_SYNC());
WATCHDOG_RESET();
} while (sw_sync.s.ena);
for (index = 0; index < rq_count; index++) {
memset((void *)&rq_dis, 0, sizeof(rq_dis));
rq_dis.rq.s.ena = 0; /* Context */
rq_dis.mrq.s.ena = 1; /* Mask */
__iowmb();
err = nix_aq_issue_command(nix_af, lf,
NIX_AQ_INSTOP_E_WRITE,
NIX_AQ_CTYPE_E_RQ,
index, &rq_dis.resp);
if (err) {
printf("%s: Error disabling LF %d RQ(%d)\n",
__func__, lf, index);
return err;
}
debug("%s: LF %d RQ(%d) disabled\n", __func__, lf, index);
}
for (index = 0; index < sq_count; index++) {
memset((void *)&sq_dis, 0, sizeof(sq_dis));
sq_dis.sq.s.ena = 0; /* Context */
sq_dis.msq.s.ena = 1; /* Mask */
__iowmb();
err = nix_aq_issue_command(nix_af, lf,
NIX_AQ_INSTOP_E_WRITE,
NIX_AQ_CTYPE_E_SQ,
index, &sq_dis.resp);
if (err) {
printf("%s: Error disabling LF %d SQ(%d)\n",
__func__, lf, index);
return err;
}
debug("%s: LF %d SQ(%d) disabled\n", __func__, lf, index);
}
for (index = 0; index < cq_count; index++) {
memset((void *)&cq_dis, 0, sizeof(cq_dis));
cq_dis.cq.s.ena = 0; /* Context */
cq_dis.mcq.s.ena = 1; /* Mask */
__iowmb();
err = nix_aq_issue_command(nix_af, lf,
NIX_AQ_INSTOP_E_WRITE,
NIX_AQ_CTYPE_E_CQ,
index, &cq_dis.resp);
if (err) {
printf("%s: Error disabling LF %d CQ(%d)\n",
__func__, lf, index);
return err;
}
debug("%s: LF %d CQ(%d) disabled\n", __func__, lf, index);
}
/* Reset the LF */
lf_rst.u = 0;
lf_rst.s.lf = lf;
lf_rst.s.exec = 1;
nix_af_reg_write(nix_af, NIXX_AF_LF_RST(), lf_rst.u);
do {
lf_rst.u = nix_af_reg_read(nix_af, NIXX_AF_LF_RST());
WATCHDOG_RESET();
} while (lf_rst.s.exec);
return 0;
}
int npc_lf_admin_setup(struct nix *nix)
{
union npc_af_const af_const;
union npc_af_pkindx_action0 action0;
union npc_af_pkindx_action1 action1;
union npc_af_intfx_kex_cfg kex_cfg;
union npc_af_intfx_miss_stat_act intfx_stat_act;
union npc_af_mcamex_bankx_camx_intf camx_intf;
union npc_af_mcamex_bankx_camx_w0 camx_w0;
union npc_af_mcamex_bankx_cfg bankx_cfg;
union npc_af_mcamex_bankx_stat_act mcamex_stat_act;
union nix_rx_action_s rx_action;
union nix_tx_action_s tx_action;
struct nix_af *nix_af = nix->nix_af;
u32 kpus;
int pkind = nix->lmac->link_num;
int index;
u64 offset;
debug("%s(%p, pkind 0x%x)\n", __func__, nix_af, pkind);
af_const.u = npc_af_reg_read(nix_af, NPC_AF_CONST());
kpus = af_const.s.kpus;
action0.u = 0;
action0.s.parse_done = 1;
npc_af_reg_write(nix_af, NPC_AF_PKINDX_ACTION0(pkind), action0.u);
action1.u = 0;
npc_af_reg_write(nix_af, NPC_AF_PKINDX_ACTION1(pkind), action1.u);
kex_cfg.u = 0;
kex_cfg.s.keyw = NPC_MCAMKEYW_E_X1;
kex_cfg.s.parse_nibble_ena = 0x7;
npc_af_reg_write(nix_af,
NPC_AF_INTFX_KEX_CFG(NPC_INTF_E_NIXX_RX(0)),
kex_cfg.u);
/* HW Issue */
kex_cfg.u = 0;
kex_cfg.s.parse_nibble_ena = 0x7;
npc_af_reg_write(nix_af,
NPC_AF_INTFX_KEX_CFG(NPC_INTF_E_NIXX_TX(0)),
kex_cfg.u);
camx_intf.u = 0;
camx_intf.s.intf = ~NPC_INTF_E_NIXX_RX(0);
npc_af_reg_write(nix_af,
NPC_AF_MCAMEX_BANKX_CAMX_INTF(pkind, 0, 0),
camx_intf.u);
camx_intf.u = 0;
camx_intf.s.intf = NPC_INTF_E_NIXX_RX(0);
npc_af_reg_write(nix_af,
NPC_AF_MCAMEX_BANKX_CAMX_INTF(pkind, 0, 1),
camx_intf.u);
camx_w0.u = 0;
camx_w0.s.md = ~(nix->lmac->chan_num) & (~((~0x0ull) << 12));
debug("NPC LF ADMIN camx_w0.u %llx\n", camx_w0.u);
npc_af_reg_write(nix_af,
NPC_AF_MCAMEX_BANKX_CAMX_W0(pkind, 0, 0),
camx_w0.u);
camx_w0.u = 0;
camx_w0.s.md = nix->lmac->chan_num;
npc_af_reg_write(nix_af,
NPC_AF_MCAMEX_BANKX_CAMX_W0(pkind, 0, 1),
camx_w0.u);
npc_af_reg_write(nix_af, NPC_AF_MCAMEX_BANKX_CAMX_W1(pkind, 0, 0),
0);
npc_af_reg_write(nix_af, NPC_AF_MCAMEX_BANKX_CAMX_W1(pkind, 0, 1),
0);
/* Enable stats for NPC INTF RX */
mcamex_stat_act.u = 0;
mcamex_stat_act.s.ena = 1;
mcamex_stat_act.s.stat_sel = pkind;
npc_af_reg_write(nix_af,
NPC_AF_MCAMEX_BANKX_STAT_ACT(pkind, 0),
mcamex_stat_act.u);
intfx_stat_act.u = 0;
intfx_stat_act.s.ena = 1;
intfx_stat_act.s.stat_sel = 16;
offset = NPC_AF_INTFX_MISS_STAT_ACT(NPC_INTF_E_NIXX_RX(0));
npc_af_reg_write(nix_af, offset, intfx_stat_act.u);
rx_action.u = 0;
rx_action.s.pf_func = nix->pf_func;
rx_action.s.op = NIX_RX_ACTIONOP_E_UCAST;
npc_af_reg_write(nix_af, NPC_AF_MCAMEX_BANKX_ACTION(pkind, 0),
rx_action.u);
for (index = 0; index < kpus; index++)
npc_af_reg_write(nix_af, NPC_AF_KPUX_CFG(index), 0);
rx_action.u = 0;
rx_action.s.pf_func = nix->pf_func;
rx_action.s.op = NIX_RX_ACTIONOP_E_DROP;
npc_af_reg_write(nix_af,
NPC_AF_INTFX_MISS_ACT(NPC_INTF_E_NIXX_RX(0)),
rx_action.u);
bankx_cfg.u = 0;
bankx_cfg.s.ena = 1;
npc_af_reg_write(nix_af, NPC_AF_MCAMEX_BANKX_CFG(pkind, 0),
bankx_cfg.u);
tx_action.u = 0;
tx_action.s.op = NIX_TX_ACTIONOP_E_UCAST_DEFAULT;
npc_af_reg_write(nix_af,
NPC_AF_INTFX_MISS_ACT(NPC_INTF_E_NIXX_TX(0)),
tx_action.u);
#ifdef DEBUG
/* Enable debug capture on RX intf */
npc_af_reg_write(nix_af, NPC_AF_DBG_CTL(), 0x4);
#endif
return 0;
}
int npc_af_shutdown(struct nix_af *nix_af)
{
union npc_af_blk_rst blk_rst;
blk_rst.u = 0;
blk_rst.s.rst = 1;
npc_af_reg_write(nix_af, NPC_AF_BLK_RST(), blk_rst.u);
/* Wait for reset to complete */
do {
blk_rst.u = npc_af_reg_read(nix_af, NPC_AF_BLK_RST());
WATCHDOG_RESET();
} while (blk_rst.s.busy);
debug("%s: npc af reset --\n", __func__);
return 0;
}
int nix_af_setup(struct nix_af *nix_af)
{
int err;
union nixx_af_const2 af_const2;
union nixx_af_const3 af_const3;
union nixx_af_sq_const sq_const;
union nixx_af_cfg af_cfg;
union nixx_af_status af_status;
union nixx_af_ndc_cfg ndc_cfg;
union nixx_af_aq_cfg aq_cfg;
union nixx_af_blk_rst blk_rst;
debug("%s(%p)\n", __func__, nix_af);
err = rvu_aq_alloc(&nix_af->aq, Q_COUNT(AQ_SIZE),
sizeof(union nix_aq_inst_s),
sizeof(union nix_aq_res_s));
if (err) {
printf("%s: Error allocating nix admin queue\n", __func__);
return err;
}
blk_rst.u = 0;
blk_rst.s.rst = 1;
nix_af_reg_write(nix_af, NIXX_AF_BLK_RST(), blk_rst.u);
/* Wait for reset to complete */
do {
blk_rst.u = nix_af_reg_read(nix_af, NIXX_AF_BLK_RST());
WATCHDOG_RESET();
} while (blk_rst.s.busy);
/* Put in LE mode */
af_cfg.u = nix_af_reg_read(nix_af, NIXX_AF_CFG());
if (af_cfg.s.force_cond_clk_en || af_cfg.s.calibrate_x2p ||
af_cfg.s.force_intf_clk_en) {
printf("%s: Error: Invalid NIX_AF_CFG value 0x%llx\n",
__func__, af_cfg.u);
return -1;
}
af_cfg.s.af_be = 0;
af_cfg.u |= 0x5E; /* HW Issue */
nix_af_reg_write(nix_af, NIXX_AF_CFG(), af_cfg.u);
/* Perform Calibration */
af_cfg.u = nix_af_reg_read(nix_af, NIXX_AF_CFG());
af_cfg.s.calibrate_x2p = 1;
nix_af_reg_write(nix_af, NIXX_AF_CFG(), af_cfg.u);
/* Wait for calibration to complete */
do {
af_status.u = nix_af_reg_read(nix_af, NIXX_AF_STATUS());
WATCHDOG_RESET();
} while (af_status.s.calibrate_done == 0);
af_cfg.u = nix_af_reg_read(nix_af, NIXX_AF_CFG());
af_cfg.s.calibrate_x2p = 0;
nix_af_reg_write(nix_af, NIXX_AF_CFG(), af_cfg.u);
/* Enable NDC cache */
ndc_cfg.u = nix_af_reg_read(nix_af, NIXX_AF_NDC_CFG());
ndc_cfg.s.ndc_ign_pois = 0;
ndc_cfg.s.byp_sq = 0;
ndc_cfg.s.byp_sqb = 0;
ndc_cfg.s.byp_cqs = 0;
ndc_cfg.s.byp_cints = 0;
ndc_cfg.s.byp_dyno = 0;
ndc_cfg.s.byp_mce = 0;
ndc_cfg.s.byp_rqc = 0;
ndc_cfg.s.byp_rsse = 0;
ndc_cfg.s.byp_mc_data = 0;
ndc_cfg.s.byp_mc_wqe = 0;
ndc_cfg.s.byp_mr_data = 0;
ndc_cfg.s.byp_mr_wqe = 0;
ndc_cfg.s.byp_qints = 0;
nix_af_reg_write(nix_af, NIXX_AF_NDC_CFG(), ndc_cfg.u);
/* Set up queue size */
aq_cfg.u = 0;
aq_cfg.s.qsize = AQ_SIZE;
nix_af_reg_write(nix_af, NIXX_AF_AQ_CFG(), aq_cfg.u);
/* Set up queue base address */
nix_af_reg_write(nix_af, NIXX_AF_AQ_BASE(), nix_af->aq.inst.iova);
af_const3.u = nix_af_reg_read(nix_af, NIXX_AF_CONST3());
af_const2.u = nix_af_reg_read(nix_af, NIXX_AF_CONST2());
sq_const.u = nix_af_reg_read(nix_af, NIXX_AF_SQ_CONST());
nix_af->rq_ctx_sz = 1ULL << af_const3.s.rq_ctx_log2bytes;
nix_af->sq_ctx_sz = 1ULL << af_const3.s.sq_ctx_log2bytes;
nix_af->cq_ctx_sz = 1ULL << af_const3.s.cq_ctx_log2bytes;
nix_af->rsse_ctx_sz = 1ULL << af_const3.s.rsse_log2bytes;
nix_af->qints = af_const2.s.qints;
nix_af->cints = af_const2.s.cints;
nix_af->cint_ctx_sz = 1ULL << af_const3.s.cint_log2bytes;
nix_af->qint_ctx_sz = 1ULL << af_const3.s.qint_log2bytes;
nix_af->sqb_size = sq_const.s.sqb_size;
return 0;
}
int nix_af_shutdown(struct nix_af *nix_af)
{
union nixx_af_blk_rst blk_rst;
blk_rst.u = 0;
blk_rst.s.rst = 1;
nix_af_reg_write(nix_af, NIXX_AF_BLK_RST(), blk_rst.u);
/* Wait for reset to complete */
do {
blk_rst.u = nix_af_reg_read(nix_af, NIXX_AF_BLK_RST());
WATCHDOG_RESET();
} while (blk_rst.s.busy);
rvu_aq_free(&nix_af->aq);
debug("%s: nix af reset --\n", __func__);
return 0;
}
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