764 lines
19 KiB
C
764 lines
19 KiB
C
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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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/* Copyright (C) 2017-2018 Netronome Systems, Inc. */
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#include <linux/ethtool.h>
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#include <linux/vmalloc.h>
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#include "nfp_asm.h"
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#include "nfp_main.h"
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#include "nfpcore/nfp.h"
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#include "nfpcore/nfp_nffw.h"
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#include "nfpcore/nfp6000/nfp6000.h"
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#define NFP_DUMP_SPEC_RTSYM "_abi_dump_spec"
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#define ALIGN8(x) ALIGN(x, 8)
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enum nfp_dumpspec_type {
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NFP_DUMPSPEC_TYPE_CPP_CSR = 0,
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NFP_DUMPSPEC_TYPE_XPB_CSR = 1,
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NFP_DUMPSPEC_TYPE_ME_CSR = 2,
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NFP_DUMPSPEC_TYPE_INDIRECT_ME_CSR = 3,
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NFP_DUMPSPEC_TYPE_RTSYM = 4,
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NFP_DUMPSPEC_TYPE_HWINFO = 5,
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NFP_DUMPSPEC_TYPE_FWNAME = 6,
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NFP_DUMPSPEC_TYPE_HWINFO_FIELD = 7,
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NFP_DUMPSPEC_TYPE_PROLOG = 10000,
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NFP_DUMPSPEC_TYPE_ERROR = 10001,
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};
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/* The following structs must be carefully aligned so that they can be used to
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* interpret the binary dumpspec and populate the dump data in a deterministic
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* way.
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*/
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/* generic type plus length */
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struct nfp_dump_tl {
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__be32 type;
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__be32 length; /* chunk length to follow, aligned to 8 bytes */
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char data[];
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};
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/* NFP CPP parameters */
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struct nfp_dumpspec_cpp_isl_id {
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u8 target;
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u8 action;
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u8 token;
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u8 island;
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};
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struct nfp_dump_common_cpp {
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struct nfp_dumpspec_cpp_isl_id cpp_id;
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__be32 offset; /* address to start dump */
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__be32 dump_length; /* total bytes to dump, aligned to reg size */
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};
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/* CSR dumpables */
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struct nfp_dumpspec_csr {
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struct nfp_dump_tl tl;
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struct nfp_dump_common_cpp cpp;
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__be32 register_width; /* in bits */
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};
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struct nfp_dumpspec_rtsym {
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struct nfp_dump_tl tl;
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char rtsym[];
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};
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/* header for register dumpable */
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struct nfp_dump_csr {
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struct nfp_dump_tl tl;
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struct nfp_dump_common_cpp cpp;
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__be32 register_width; /* in bits */
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__be32 error; /* error code encountered while reading */
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__be32 error_offset; /* offset being read when error occurred */
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};
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struct nfp_dump_rtsym {
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struct nfp_dump_tl tl;
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struct nfp_dump_common_cpp cpp;
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__be32 error; /* error code encountered while reading */
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u8 padded_name_length; /* pad so data starts at 8 byte boundary */
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char rtsym[];
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/* after padded_name_length, there is dump_length data */
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};
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struct nfp_dump_prolog {
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struct nfp_dump_tl tl;
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__be32 dump_level;
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};
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struct nfp_dump_error {
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struct nfp_dump_tl tl;
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__be32 error;
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char padding[4];
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char spec[];
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};
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/* to track state through debug size calculation TLV traversal */
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struct nfp_level_size {
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__be32 requested_level; /* input */
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u32 total_size; /* output */
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};
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/* to track state during debug dump creation TLV traversal */
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struct nfp_dump_state {
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__be32 requested_level; /* input param */
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u32 dumped_size; /* adds up to size of dumped data */
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u32 buf_size; /* size of buffer pointer to by p */
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void *p; /* current point in dump buffer */
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};
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typedef int (*nfp_tlv_visit)(struct nfp_pf *pf, struct nfp_dump_tl *tl,
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void *param);
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static int
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nfp_traverse_tlvs(struct nfp_pf *pf, void *data, u32 data_length, void *param,
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nfp_tlv_visit tlv_visit)
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{
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long long remaining = data_length;
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struct nfp_dump_tl *tl;
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u32 total_tlv_size;
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void *p = data;
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int err;
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while (remaining >= sizeof(*tl)) {
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tl = p;
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if (!tl->type && !tl->length)
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break;
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if (be32_to_cpu(tl->length) > remaining - sizeof(*tl))
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return -EINVAL;
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total_tlv_size = sizeof(*tl) + be32_to_cpu(tl->length);
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/* Spec TLVs should be aligned to 4 bytes. */
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if (total_tlv_size % 4 != 0)
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return -EINVAL;
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p += total_tlv_size;
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remaining -= total_tlv_size;
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err = tlv_visit(pf, tl, param);
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if (err)
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return err;
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}
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return 0;
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}
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static u32 nfp_get_numeric_cpp_id(struct nfp_dumpspec_cpp_isl_id *cpp_id)
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{
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return NFP_CPP_ISLAND_ID(cpp_id->target, cpp_id->action, cpp_id->token,
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cpp_id->island);
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}
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struct nfp_dumpspec *
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nfp_net_dump_load_dumpspec(struct nfp_cpp *cpp, struct nfp_rtsym_table *rtbl)
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{
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const struct nfp_rtsym *specsym;
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struct nfp_dumpspec *dumpspec;
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int bytes_read;
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u64 sym_size;
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specsym = nfp_rtsym_lookup(rtbl, NFP_DUMP_SPEC_RTSYM);
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if (!specsym)
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return NULL;
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sym_size = nfp_rtsym_size(specsym);
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/* expected size of this buffer is in the order of tens of kilobytes */
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dumpspec = vmalloc(sizeof(*dumpspec) + sym_size);
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if (!dumpspec)
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return NULL;
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dumpspec->size = sym_size;
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bytes_read = nfp_rtsym_read(cpp, specsym, 0, dumpspec->data, sym_size);
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if (bytes_read != sym_size) {
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vfree(dumpspec);
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nfp_warn(cpp, "Debug dump specification read failed.\n");
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return NULL;
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}
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return dumpspec;
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}
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static int nfp_dump_error_tlv_size(struct nfp_dump_tl *spec)
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{
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return ALIGN8(sizeof(struct nfp_dump_error) + sizeof(*spec) +
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be32_to_cpu(spec->length));
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}
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static int nfp_calc_fwname_tlv_size(struct nfp_pf *pf)
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{
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u32 fwname_len = strlen(nfp_mip_name(pf->mip));
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return sizeof(struct nfp_dump_tl) + ALIGN8(fwname_len + 1);
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}
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static int nfp_calc_hwinfo_field_sz(struct nfp_pf *pf, struct nfp_dump_tl *spec)
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{
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u32 tl_len, key_len;
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const char *value;
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tl_len = be32_to_cpu(spec->length);
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key_len = strnlen(spec->data, tl_len);
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if (key_len == tl_len)
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return nfp_dump_error_tlv_size(spec);
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value = nfp_hwinfo_lookup(pf->hwinfo, spec->data);
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if (!value)
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return nfp_dump_error_tlv_size(spec);
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return sizeof(struct nfp_dump_tl) + ALIGN8(key_len + strlen(value) + 2);
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}
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static bool nfp_csr_spec_valid(struct nfp_dumpspec_csr *spec_csr)
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{
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u32 required_read_sz = sizeof(*spec_csr) - sizeof(spec_csr->tl);
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u32 available_sz = be32_to_cpu(spec_csr->tl.length);
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u32 reg_width;
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if (available_sz < required_read_sz)
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return false;
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reg_width = be32_to_cpu(spec_csr->register_width);
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return reg_width == 32 || reg_width == 64;
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}
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static int
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nfp_calc_rtsym_dump_sz(struct nfp_pf *pf, struct nfp_dump_tl *spec)
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{
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struct nfp_rtsym_table *rtbl = pf->rtbl;
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struct nfp_dumpspec_rtsym *spec_rtsym;
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const struct nfp_rtsym *sym;
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u32 tl_len, key_len;
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spec_rtsym = (struct nfp_dumpspec_rtsym *)spec;
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tl_len = be32_to_cpu(spec->length);
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key_len = strnlen(spec_rtsym->rtsym, tl_len);
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if (key_len == tl_len)
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return nfp_dump_error_tlv_size(spec);
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sym = nfp_rtsym_lookup(rtbl, spec_rtsym->rtsym);
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if (!sym)
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return nfp_dump_error_tlv_size(spec);
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return ALIGN8(offsetof(struct nfp_dump_rtsym, rtsym) + key_len + 1) +
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ALIGN8(nfp_rtsym_size(sym));
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}
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static int
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nfp_add_tlv_size(struct nfp_pf *pf, struct nfp_dump_tl *tl, void *param)
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{
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struct nfp_dumpspec_csr *spec_csr;
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u32 *size = param;
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u32 hwinfo_size;
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switch (be32_to_cpu(tl->type)) {
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case NFP_DUMPSPEC_TYPE_FWNAME:
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*size += nfp_calc_fwname_tlv_size(pf);
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break;
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case NFP_DUMPSPEC_TYPE_CPP_CSR:
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case NFP_DUMPSPEC_TYPE_XPB_CSR:
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case NFP_DUMPSPEC_TYPE_ME_CSR:
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spec_csr = (struct nfp_dumpspec_csr *)tl;
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if (!nfp_csr_spec_valid(spec_csr))
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*size += nfp_dump_error_tlv_size(tl);
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else
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*size += ALIGN8(sizeof(struct nfp_dump_csr)) +
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ALIGN8(be32_to_cpu(spec_csr->cpp.dump_length));
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break;
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case NFP_DUMPSPEC_TYPE_INDIRECT_ME_CSR:
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spec_csr = (struct nfp_dumpspec_csr *)tl;
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if (!nfp_csr_spec_valid(spec_csr))
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*size += nfp_dump_error_tlv_size(tl);
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else
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*size += ALIGN8(sizeof(struct nfp_dump_csr)) +
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ALIGN8(be32_to_cpu(spec_csr->cpp.dump_length) *
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NFP_IND_NUM_CONTEXTS);
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break;
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case NFP_DUMPSPEC_TYPE_RTSYM:
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*size += nfp_calc_rtsym_dump_sz(pf, tl);
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break;
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case NFP_DUMPSPEC_TYPE_HWINFO:
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hwinfo_size = nfp_hwinfo_get_packed_str_size(pf->hwinfo);
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*size += sizeof(struct nfp_dump_tl) + ALIGN8(hwinfo_size);
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break;
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case NFP_DUMPSPEC_TYPE_HWINFO_FIELD:
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*size += nfp_calc_hwinfo_field_sz(pf, tl);
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break;
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default:
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*size += nfp_dump_error_tlv_size(tl);
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break;
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}
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return 0;
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}
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static int
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nfp_calc_specific_level_size(struct nfp_pf *pf, struct nfp_dump_tl *dump_level,
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void *param)
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{
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struct nfp_level_size *lev_sz = param;
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if (dump_level->type != lev_sz->requested_level)
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return 0;
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return nfp_traverse_tlvs(pf, dump_level->data,
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be32_to_cpu(dump_level->length),
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&lev_sz->total_size, nfp_add_tlv_size);
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}
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s64 nfp_net_dump_calculate_size(struct nfp_pf *pf, struct nfp_dumpspec *spec,
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u32 flag)
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{
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struct nfp_level_size lev_sz;
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int err;
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lev_sz.requested_level = cpu_to_be32(flag);
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lev_sz.total_size = ALIGN8(sizeof(struct nfp_dump_prolog));
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err = nfp_traverse_tlvs(pf, spec->data, spec->size, &lev_sz,
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nfp_calc_specific_level_size);
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if (err)
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return err;
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return lev_sz.total_size;
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}
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static int nfp_add_tlv(u32 type, u32 total_tlv_sz, struct nfp_dump_state *dump)
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{
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struct nfp_dump_tl *tl = dump->p;
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if (total_tlv_sz > dump->buf_size)
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return -ENOSPC;
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if (dump->buf_size - total_tlv_sz < dump->dumped_size)
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return -ENOSPC;
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tl->type = cpu_to_be32(type);
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tl->length = cpu_to_be32(total_tlv_sz - sizeof(*tl));
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dump->dumped_size += total_tlv_sz;
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dump->p += total_tlv_sz;
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return 0;
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}
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static int
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nfp_dump_error_tlv(struct nfp_dump_tl *spec, int error,
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struct nfp_dump_state *dump)
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{
|
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struct nfp_dump_error *dump_header = dump->p;
|
||
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u32 total_spec_size, total_size;
|
||
|
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int err;
|
||
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total_spec_size = sizeof(*spec) + be32_to_cpu(spec->length);
|
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total_size = ALIGN8(sizeof(*dump_header) + total_spec_size);
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||
|
|
|
||
|
|
err = nfp_add_tlv(NFP_DUMPSPEC_TYPE_ERROR, total_size, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
dump_header->error = cpu_to_be32(error);
|
||
|
|
memcpy(dump_header->spec, spec, total_spec_size);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int nfp_dump_fwname(struct nfp_pf *pf, struct nfp_dump_state *dump)
|
||
|
|
{
|
||
|
|
struct nfp_dump_tl *dump_header = dump->p;
|
||
|
|
u32 fwname_len, total_size;
|
||
|
|
const char *fwname;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
fwname = nfp_mip_name(pf->mip);
|
||
|
|
fwname_len = strlen(fwname);
|
||
|
|
total_size = sizeof(*dump_header) + ALIGN8(fwname_len + 1);
|
||
|
|
|
||
|
|
err = nfp_add_tlv(NFP_DUMPSPEC_TYPE_FWNAME, total_size, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
memcpy(dump_header->data, fwname, fwname_len);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nfp_dump_hwinfo(struct nfp_pf *pf, struct nfp_dump_tl *spec,
|
||
|
|
struct nfp_dump_state *dump)
|
||
|
|
{
|
||
|
|
struct nfp_dump_tl *dump_header = dump->p;
|
||
|
|
u32 hwinfo_size, total_size;
|
||
|
|
char *hwinfo;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
hwinfo = nfp_hwinfo_get_packed_strings(pf->hwinfo);
|
||
|
|
hwinfo_size = nfp_hwinfo_get_packed_str_size(pf->hwinfo);
|
||
|
|
total_size = sizeof(*dump_header) + ALIGN8(hwinfo_size);
|
||
|
|
|
||
|
|
err = nfp_add_tlv(NFP_DUMPSPEC_TYPE_HWINFO, total_size, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
memcpy(dump_header->data, hwinfo, hwinfo_size);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int nfp_dump_hwinfo_field(struct nfp_pf *pf, struct nfp_dump_tl *spec,
|
||
|
|
struct nfp_dump_state *dump)
|
||
|
|
{
|
||
|
|
struct nfp_dump_tl *dump_header = dump->p;
|
||
|
|
u32 tl_len, key_len, val_len;
|
||
|
|
const char *key, *value;
|
||
|
|
u32 total_size;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
tl_len = be32_to_cpu(spec->length);
|
||
|
|
key_len = strnlen(spec->data, tl_len);
|
||
|
|
if (key_len == tl_len)
|
||
|
|
return nfp_dump_error_tlv(spec, -EINVAL, dump);
|
||
|
|
|
||
|
|
key = spec->data;
|
||
|
|
value = nfp_hwinfo_lookup(pf->hwinfo, key);
|
||
|
|
if (!value)
|
||
|
|
return nfp_dump_error_tlv(spec, -ENOENT, dump);
|
||
|
|
|
||
|
|
val_len = strlen(value);
|
||
|
|
total_size = sizeof(*dump_header) + ALIGN8(key_len + val_len + 2);
|
||
|
|
err = nfp_add_tlv(NFP_DUMPSPEC_TYPE_HWINFO_FIELD, total_size, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
memcpy(dump_header->data, key, key_len + 1);
|
||
|
|
memcpy(dump_header->data + key_len + 1, value, val_len + 1);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool is_xpb_read(struct nfp_dumpspec_cpp_isl_id *cpp_id)
|
||
|
|
{
|
||
|
|
return cpp_id->target == NFP_CPP_TARGET_ISLAND_XPB &&
|
||
|
|
cpp_id->action == 0 && cpp_id->token == 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nfp_dump_csr_range(struct nfp_pf *pf, struct nfp_dumpspec_csr *spec_csr,
|
||
|
|
struct nfp_dump_state *dump)
|
||
|
|
{
|
||
|
|
struct nfp_dump_csr *dump_header = dump->p;
|
||
|
|
u32 reg_sz, header_size, total_size;
|
||
|
|
u32 cpp_rd_addr, max_rd_addr;
|
||
|
|
int bytes_read;
|
||
|
|
void *dest;
|
||
|
|
u32 cpp_id;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (!nfp_csr_spec_valid(spec_csr))
|
||
|
|
return nfp_dump_error_tlv(&spec_csr->tl, -EINVAL, dump);
|
||
|
|
|
||
|
|
reg_sz = be32_to_cpu(spec_csr->register_width) / BITS_PER_BYTE;
|
||
|
|
header_size = ALIGN8(sizeof(*dump_header));
|
||
|
|
total_size = header_size +
|
||
|
|
ALIGN8(be32_to_cpu(spec_csr->cpp.dump_length));
|
||
|
|
dest = dump->p + header_size;
|
||
|
|
|
||
|
|
err = nfp_add_tlv(be32_to_cpu(spec_csr->tl.type), total_size, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
dump_header->cpp = spec_csr->cpp;
|
||
|
|
dump_header->register_width = spec_csr->register_width;
|
||
|
|
|
||
|
|
cpp_id = nfp_get_numeric_cpp_id(&spec_csr->cpp.cpp_id);
|
||
|
|
cpp_rd_addr = be32_to_cpu(spec_csr->cpp.offset);
|
||
|
|
max_rd_addr = cpp_rd_addr + be32_to_cpu(spec_csr->cpp.dump_length);
|
||
|
|
|
||
|
|
while (cpp_rd_addr < max_rd_addr) {
|
||
|
|
if (is_xpb_read(&spec_csr->cpp.cpp_id)) {
|
||
|
|
err = nfp_xpb_readl(pf->cpp, cpp_rd_addr, (u32 *)dest);
|
||
|
|
} else {
|
||
|
|
bytes_read = nfp_cpp_read(pf->cpp, cpp_id, cpp_rd_addr,
|
||
|
|
dest, reg_sz);
|
||
|
|
err = bytes_read == reg_sz ? 0 : -EIO;
|
||
|
|
}
|
||
|
|
if (err) {
|
||
|
|
dump_header->error = cpu_to_be32(err);
|
||
|
|
dump_header->error_offset = cpu_to_be32(cpp_rd_addr);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
cpp_rd_addr += reg_sz;
|
||
|
|
dest += reg_sz;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Write context to CSRCtxPtr, then read from it. Then the value can be read
|
||
|
|
* from IndCtxStatus.
|
||
|
|
*/
|
||
|
|
static int
|
||
|
|
nfp_read_indirect_csr(struct nfp_cpp *cpp,
|
||
|
|
struct nfp_dumpspec_cpp_isl_id cpp_params, u32 offset,
|
||
|
|
u32 reg_sz, u32 context, void *dest)
|
||
|
|
{
|
||
|
|
u32 csr_ctx_ptr_offs;
|
||
|
|
u32 cpp_id;
|
||
|
|
int result;
|
||
|
|
|
||
|
|
csr_ctx_ptr_offs = nfp_get_ind_csr_ctx_ptr_offs(offset);
|
||
|
|
cpp_id = NFP_CPP_ISLAND_ID(cpp_params.target,
|
||
|
|
NFP_IND_ME_REFL_WR_SIG_INIT,
|
||
|
|
cpp_params.token, cpp_params.island);
|
||
|
|
result = nfp_cpp_writel(cpp, cpp_id, csr_ctx_ptr_offs, context);
|
||
|
|
if (result)
|
||
|
|
return result;
|
||
|
|
|
||
|
|
cpp_id = nfp_get_numeric_cpp_id(&cpp_params);
|
||
|
|
result = nfp_cpp_read(cpp, cpp_id, csr_ctx_ptr_offs, dest, reg_sz);
|
||
|
|
if (result != reg_sz)
|
||
|
|
return result < 0 ? result : -EIO;
|
||
|
|
|
||
|
|
result = nfp_cpp_read(cpp, cpp_id, offset, dest, reg_sz);
|
||
|
|
if (result != reg_sz)
|
||
|
|
return result < 0 ? result : -EIO;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nfp_read_all_indirect_csr_ctx(struct nfp_cpp *cpp,
|
||
|
|
struct nfp_dumpspec_csr *spec_csr, u32 address,
|
||
|
|
u32 reg_sz, void *dest)
|
||
|
|
{
|
||
|
|
u32 ctx;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
for (ctx = 0; ctx < NFP_IND_NUM_CONTEXTS; ctx++) {
|
||
|
|
err = nfp_read_indirect_csr(cpp, spec_csr->cpp.cpp_id, address,
|
||
|
|
reg_sz, ctx, dest + ctx * reg_sz);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nfp_dump_indirect_csr_range(struct nfp_pf *pf,
|
||
|
|
struct nfp_dumpspec_csr *spec_csr,
|
||
|
|
struct nfp_dump_state *dump)
|
||
|
|
{
|
||
|
|
struct nfp_dump_csr *dump_header = dump->p;
|
||
|
|
u32 reg_sz, header_size, total_size;
|
||
|
|
u32 cpp_rd_addr, max_rd_addr;
|
||
|
|
u32 reg_data_length;
|
||
|
|
void *dest;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (!nfp_csr_spec_valid(spec_csr))
|
||
|
|
return nfp_dump_error_tlv(&spec_csr->tl, -EINVAL, dump);
|
||
|
|
|
||
|
|
reg_sz = be32_to_cpu(spec_csr->register_width) / BITS_PER_BYTE;
|
||
|
|
header_size = ALIGN8(sizeof(*dump_header));
|
||
|
|
reg_data_length = be32_to_cpu(spec_csr->cpp.dump_length) *
|
||
|
|
NFP_IND_NUM_CONTEXTS;
|
||
|
|
total_size = header_size + ALIGN8(reg_data_length);
|
||
|
|
dest = dump->p + header_size;
|
||
|
|
|
||
|
|
err = nfp_add_tlv(be32_to_cpu(spec_csr->tl.type), total_size, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
dump_header->cpp = spec_csr->cpp;
|
||
|
|
dump_header->register_width = spec_csr->register_width;
|
||
|
|
|
||
|
|
cpp_rd_addr = be32_to_cpu(spec_csr->cpp.offset);
|
||
|
|
max_rd_addr = cpp_rd_addr + be32_to_cpu(spec_csr->cpp.dump_length);
|
||
|
|
while (cpp_rd_addr < max_rd_addr) {
|
||
|
|
err = nfp_read_all_indirect_csr_ctx(pf->cpp, spec_csr,
|
||
|
|
cpp_rd_addr, reg_sz, dest);
|
||
|
|
if (err) {
|
||
|
|
dump_header->error = cpu_to_be32(err);
|
||
|
|
dump_header->error_offset = cpu_to_be32(cpp_rd_addr);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
cpp_rd_addr += reg_sz;
|
||
|
|
dest += reg_sz * NFP_IND_NUM_CONTEXTS;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nfp_dump_single_rtsym(struct nfp_pf *pf, struct nfp_dumpspec_rtsym *spec,
|
||
|
|
struct nfp_dump_state *dump)
|
||
|
|
{
|
||
|
|
struct nfp_dump_rtsym *dump_header = dump->p;
|
||
|
|
struct nfp_dumpspec_cpp_isl_id cpp_params;
|
||
|
|
struct nfp_rtsym_table *rtbl = pf->rtbl;
|
||
|
|
u32 header_size, total_size, sym_size;
|
||
|
|
const struct nfp_rtsym *sym;
|
||
|
|
u32 tl_len, key_len;
|
||
|
|
int bytes_read;
|
||
|
|
void *dest;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
tl_len = be32_to_cpu(spec->tl.length);
|
||
|
|
key_len = strnlen(spec->rtsym, tl_len);
|
||
|
|
if (key_len == tl_len)
|
||
|
|
return nfp_dump_error_tlv(&spec->tl, -EINVAL, dump);
|
||
|
|
|
||
|
|
sym = nfp_rtsym_lookup(rtbl, spec->rtsym);
|
||
|
|
if (!sym)
|
||
|
|
return nfp_dump_error_tlv(&spec->tl, -ENOENT, dump);
|
||
|
|
|
||
|
|
sym_size = nfp_rtsym_size(sym);
|
||
|
|
header_size =
|
||
|
|
ALIGN8(offsetof(struct nfp_dump_rtsym, rtsym) + key_len + 1);
|
||
|
|
total_size = header_size + ALIGN8(sym_size);
|
||
|
|
dest = dump->p + header_size;
|
||
|
|
|
||
|
|
err = nfp_add_tlv(be32_to_cpu(spec->tl.type), total_size, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
dump_header->padded_name_length =
|
||
|
|
header_size - offsetof(struct nfp_dump_rtsym, rtsym);
|
||
|
|
memcpy(dump_header->rtsym, spec->rtsym, key_len + 1);
|
||
|
|
dump_header->cpp.dump_length = cpu_to_be32(sym_size);
|
||
|
|
|
||
|
|
if (sym->type != NFP_RTSYM_TYPE_ABS) {
|
||
|
|
cpp_params.target = sym->target;
|
||
|
|
cpp_params.action = NFP_CPP_ACTION_RW;
|
||
|
|
cpp_params.token = 0;
|
||
|
|
cpp_params.island = sym->domain;
|
||
|
|
dump_header->cpp.cpp_id = cpp_params;
|
||
|
|
dump_header->cpp.offset = cpu_to_be32(sym->addr);
|
||
|
|
}
|
||
|
|
|
||
|
|
bytes_read = nfp_rtsym_read(pf->cpp, sym, 0, dest, sym_size);
|
||
|
|
if (bytes_read != sym_size) {
|
||
|
|
if (bytes_read >= 0)
|
||
|
|
bytes_read = -EIO;
|
||
|
|
dump_header->error = cpu_to_be32(bytes_read);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nfp_dump_for_tlv(struct nfp_pf *pf, struct nfp_dump_tl *tl, void *param)
|
||
|
|
{
|
||
|
|
struct nfp_dumpspec_rtsym *spec_rtsym;
|
||
|
|
struct nfp_dump_state *dump = param;
|
||
|
|
struct nfp_dumpspec_csr *spec_csr;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
switch (be32_to_cpu(tl->type)) {
|
||
|
|
case NFP_DUMPSPEC_TYPE_FWNAME:
|
||
|
|
err = nfp_dump_fwname(pf, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
break;
|
||
|
|
case NFP_DUMPSPEC_TYPE_CPP_CSR:
|
||
|
|
case NFP_DUMPSPEC_TYPE_XPB_CSR:
|
||
|
|
case NFP_DUMPSPEC_TYPE_ME_CSR:
|
||
|
|
spec_csr = (struct nfp_dumpspec_csr *)tl;
|
||
|
|
err = nfp_dump_csr_range(pf, spec_csr, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
break;
|
||
|
|
case NFP_DUMPSPEC_TYPE_INDIRECT_ME_CSR:
|
||
|
|
spec_csr = (struct nfp_dumpspec_csr *)tl;
|
||
|
|
err = nfp_dump_indirect_csr_range(pf, spec_csr, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
break;
|
||
|
|
case NFP_DUMPSPEC_TYPE_RTSYM:
|
||
|
|
spec_rtsym = (struct nfp_dumpspec_rtsym *)tl;
|
||
|
|
err = nfp_dump_single_rtsym(pf, spec_rtsym, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
break;
|
||
|
|
case NFP_DUMPSPEC_TYPE_HWINFO:
|
||
|
|
err = nfp_dump_hwinfo(pf, tl, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
break;
|
||
|
|
case NFP_DUMPSPEC_TYPE_HWINFO_FIELD:
|
||
|
|
err = nfp_dump_hwinfo_field(pf, tl, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
err = nfp_dump_error_tlv(tl, -EOPNOTSUPP, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nfp_dump_specific_level(struct nfp_pf *pf, struct nfp_dump_tl *dump_level,
|
||
|
|
void *param)
|
||
|
|
{
|
||
|
|
struct nfp_dump_state *dump = param;
|
||
|
|
|
||
|
|
if (dump_level->type != dump->requested_level)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
return nfp_traverse_tlvs(pf, dump_level->data,
|
||
|
|
be32_to_cpu(dump_level->length), dump,
|
||
|
|
nfp_dump_for_tlv);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int nfp_dump_populate_prolog(struct nfp_dump_state *dump)
|
||
|
|
{
|
||
|
|
struct nfp_dump_prolog *prolog = dump->p;
|
||
|
|
u32 total_size;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
total_size = ALIGN8(sizeof(*prolog));
|
||
|
|
|
||
|
|
err = nfp_add_tlv(NFP_DUMPSPEC_TYPE_PROLOG, total_size, dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
prolog->dump_level = dump->requested_level;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int nfp_net_dump_populate_buffer(struct nfp_pf *pf, struct nfp_dumpspec *spec,
|
||
|
|
struct ethtool_dump *dump_param, void *dest)
|
||
|
|
{
|
||
|
|
struct nfp_dump_state dump;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
dump.requested_level = cpu_to_be32(dump_param->flag);
|
||
|
|
dump.dumped_size = 0;
|
||
|
|
dump.p = dest;
|
||
|
|
dump.buf_size = dump_param->len;
|
||
|
|
|
||
|
|
err = nfp_dump_populate_prolog(&dump);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
err = nfp_traverse_tlvs(pf, spec->data, spec->size, &dump,
|
||
|
|
nfp_dump_specific_level);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
/* Set size of actual dump, to trigger warning if different from
|
||
|
|
* calculated size.
|
||
|
|
*/
|
||
|
|
dump_param->len = dump.dumped_size;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|