149 lines
3.9 KiB
C
149 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) Meta Platforms, Inc. and affiliates. */
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#include "fbnic.h"
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#define FBNIC_BOUNDS(section) { \
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.start = FBNIC_CSR_START_##section, \
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.end = FBNIC_CSR_END_##section + 1, \
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}
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struct fbnic_csr_bounds {
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u32 start;
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u32 end;
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};
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static const struct fbnic_csr_bounds fbnic_csr_sects[] = {
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FBNIC_BOUNDS(INTR),
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FBNIC_BOUNDS(INTR_CQ),
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FBNIC_BOUNDS(QM_TX),
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FBNIC_BOUNDS(QM_RX),
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FBNIC_BOUNDS(TCE),
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FBNIC_BOUNDS(TCE_RAM),
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FBNIC_BOUNDS(TMI),
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FBNIC_BOUNDS(PTP),
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FBNIC_BOUNDS(RXB),
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FBNIC_BOUNDS(RPC),
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FBNIC_BOUNDS(FAB),
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FBNIC_BOUNDS(MASTER),
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FBNIC_BOUNDS(PCS),
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FBNIC_BOUNDS(RSFEC),
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FBNIC_BOUNDS(MAC_MAC),
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FBNIC_BOUNDS(SIG),
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FBNIC_BOUNDS(PUL_USER),
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FBNIC_BOUNDS(QUEUE),
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FBNIC_BOUNDS(RPC_RAM),
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};
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#define FBNIC_RPC_TCAM_ACT_DW_PER_ENTRY 14
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#define FBNIC_RPC_TCAM_ACT_NUM_ENTRIES 64
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#define FBNIC_RPC_TCAM_MACDA_DW_PER_ENTRY 4
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#define FBNIC_RPC_TCAM_MACDA_NUM_ENTRIES 32
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#define FBNIC_RPC_TCAM_OUTER_IPSRC_DW_PER_ENTRY 9
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#define FBNIC_RPC_TCAM_OUTER_IPSRC_NUM_ENTRIES 8
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#define FBNIC_RPC_TCAM_OUTER_IPDST_DW_PER_ENTRY 9
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#define FBNIC_RPC_TCAM_OUTER_IPDST_NUM_ENTRIES 8
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#define FBNIC_RPC_TCAM_IPSRC_DW_PER_ENTRY 9
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#define FBNIC_RPC_TCAM_IPSRC_NUM_ENTRIES 8
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#define FBNIC_RPC_TCAM_IPDST_DW_PER_ENTRY 9
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#define FBNIC_RPC_TCAM_IPDST_NUM_ENTRIES 8
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#define FBNIC_RPC_RSS_TBL_DW_PER_ENTRY 2
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#define FBNIC_RPC_RSS_TBL_NUM_ENTRIES 256
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static void fbnic_csr_get_regs_rpc_ram(struct fbnic_dev *fbd, u32 **data_p)
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{
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u32 start = FBNIC_CSR_START_RPC_RAM;
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u32 end = FBNIC_CSR_END_RPC_RAM;
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u32 *data = *data_p;
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u32 i, j;
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*(data++) = start;
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*(data++) = end;
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/* FBNIC_RPC_TCAM_ACT */
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for (i = 0; i < FBNIC_RPC_TCAM_ACT_NUM_ENTRIES; i++) {
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for (j = 0; j < FBNIC_RPC_TCAM_ACT_DW_PER_ENTRY; j++)
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*(data++) = rd32(fbd, FBNIC_RPC_TCAM_ACT(i, j));
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}
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/* FBNIC_RPC_TCAM_MACDA */
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for (i = 0; i < FBNIC_RPC_TCAM_MACDA_NUM_ENTRIES; i++) {
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for (j = 0; j < FBNIC_RPC_TCAM_MACDA_DW_PER_ENTRY; j++)
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*(data++) = rd32(fbd, FBNIC_RPC_TCAM_MACDA(i, j));
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}
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/* FBNIC_RPC_TCAM_OUTER_IPSRC */
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for (i = 0; i < FBNIC_RPC_TCAM_OUTER_IPSRC_NUM_ENTRIES; i++) {
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for (j = 0; j < FBNIC_RPC_TCAM_OUTER_IPSRC_DW_PER_ENTRY; j++)
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*(data++) = rd32(fbd, FBNIC_RPC_TCAM_OUTER_IPSRC(i, j));
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}
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/* FBNIC_RPC_TCAM_OUTER_IPDST */
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for (i = 0; i < FBNIC_RPC_TCAM_OUTER_IPDST_NUM_ENTRIES; i++) {
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for (j = 0; j < FBNIC_RPC_TCAM_OUTER_IPDST_DW_PER_ENTRY; j++)
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*(data++) = rd32(fbd, FBNIC_RPC_TCAM_OUTER_IPDST(i, j));
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}
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/* FBNIC_RPC_TCAM_IPSRC */
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for (i = 0; i < FBNIC_RPC_TCAM_IPSRC_NUM_ENTRIES; i++) {
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for (j = 0; j < FBNIC_RPC_TCAM_IPSRC_DW_PER_ENTRY; j++)
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*(data++) = rd32(fbd, FBNIC_RPC_TCAM_IPSRC(i, j));
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}
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/* FBNIC_RPC_TCAM_IPDST */
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for (i = 0; i < FBNIC_RPC_TCAM_IPDST_NUM_ENTRIES; i++) {
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for (j = 0; j < FBNIC_RPC_TCAM_IPDST_DW_PER_ENTRY; j++)
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*(data++) = rd32(fbd, FBNIC_RPC_TCAM_IPDST(i, j));
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}
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/* FBNIC_RPC_RSS_TBL */
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for (i = 0; i < FBNIC_RPC_RSS_TBL_NUM_ENTRIES; i++) {
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for (j = 0; j < FBNIC_RPC_RSS_TBL_DW_PER_ENTRY; j++)
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*(data++) = rd32(fbd, FBNIC_RPC_RSS_TBL(i, j));
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}
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*data_p = data;
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}
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void fbnic_csr_get_regs(struct fbnic_dev *fbd, u32 *data, u32 *regs_version)
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{
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const struct fbnic_csr_bounds *bound;
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u32 *start = data;
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int i, j;
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*regs_version = 1u;
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/* Skip RPC_RAM section which cannot be dumped linearly */
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for (i = 0, bound = fbnic_csr_sects;
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i < ARRAY_SIZE(fbnic_csr_sects) - 1; i++, ++bound) {
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*(data++) = bound->start;
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*(data++) = bound->end - 1;
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for (j = bound->start; j < bound->end; j++)
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*(data++) = rd32(fbd, j);
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}
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/* Dump the RPC_RAM as special case registers */
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fbnic_csr_get_regs_rpc_ram(fbd, &data);
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WARN_ON(data - start != fbnic_csr_regs_len(fbd));
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}
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int fbnic_csr_regs_len(struct fbnic_dev *fbd)
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{
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int i, len = 0;
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/* Dump includes start and end information of each section
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* which results in an offset of 2
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*/
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for (i = 0; i < ARRAY_SIZE(fbnic_csr_sects); i++)
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len += fbnic_csr_sects[i].end - fbnic_csr_sects[i].start + 2;
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return len;
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}
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