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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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nfp: add helper for mapping runtime symbols
Move most of the helper for mapping RTsyms from nfp_net_main.c to nfpcore. Use the new helper directly for mapping MAC statistics, since they don't need to include the PCIe interface ID in the symbol name. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -174,31 +174,12 @@ static u8 __iomem *
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nfp_net_pf_map_rtsym(struct nfp_pf *pf, const char *name, const char *sym_fmt,
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unsigned int min_size, struct nfp_cpp_area **area)
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{
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const struct nfp_rtsym *sym;
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char pf_symbol[256];
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u8 __iomem *mem;
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snprintf(pf_symbol, sizeof(pf_symbol), sym_fmt,
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nfp_cppcore_pcie_unit(pf->cpp));
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sym = nfp_rtsym_lookup(pf->rtbl, pf_symbol);
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if (!sym)
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return (u8 __iomem *)ERR_PTR(-ENOENT);
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if (sym->size < min_size) {
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nfp_err(pf->cpp, "PF symbol %s too small\n", pf_symbol);
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return (u8 __iomem *)ERR_PTR(-EINVAL);
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}
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mem = nfp_cpp_map_area(pf->cpp, name, sym->domain, sym->target,
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sym->addr, sym->size, area);
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if (IS_ERR(mem)) {
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nfp_err(pf->cpp, "Failed to map PF symbol %s: %ld\n",
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pf_symbol, PTR_ERR(mem));
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return mem;
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}
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return mem;
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return nfp_rtsym_map(pf->rtbl, pf_symbol, name, min_size, area);
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}
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static void nfp_net_pf_free_vnic(struct nfp_pf *pf, struct nfp_net *nn)
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@ -528,23 +509,22 @@ static void nfp_net_pci_unmap_mem(struct nfp_pf *pf)
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static int nfp_net_pci_map_mem(struct nfp_pf *pf)
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{
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u32 ctrl_bar_sz;
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u8 __iomem *mem;
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u32 min_size;
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int err;
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ctrl_bar_sz = pf->max_data_vnics * NFP_PF_CSR_SLICE_SIZE;
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min_size = pf->max_data_vnics * NFP_PF_CSR_SLICE_SIZE;
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mem = nfp_net_pf_map_rtsym(pf, "net.ctrl", "_pf%d_net_bar0",
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ctrl_bar_sz, &pf->data_vnic_bar);
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min_size, &pf->data_vnic_bar);
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if (IS_ERR(mem)) {
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nfp_err(pf->cpp, "Failed to find data vNIC memory symbol\n");
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return PTR_ERR(mem);
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}
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pf->mac_stats_mem = nfp_net_pf_map_rtsym(pf, "net.macstats",
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"_mac_stats",
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NFP_MAC_STATS_SIZE *
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(pf->eth_tbl->max_index + 1),
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&pf->mac_stats_bar);
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min_size = NFP_MAC_STATS_SIZE * (pf->eth_tbl->max_index + 1);
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pf->mac_stats_mem = nfp_rtsym_map(pf->rtbl, "_mac_stats",
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"net.macstats", min_size,
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&pf->mac_stats_bar);
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if (IS_ERR(pf->mac_stats_mem)) {
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if (PTR_ERR(pf->mac_stats_mem) != -ENOENT) {
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err = PTR_ERR(pf->mac_stats_mem);
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@ -97,7 +97,11 @@ int nfp_rtsym_count(struct nfp_rtsym_table *rtbl);
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const struct nfp_rtsym *nfp_rtsym_get(struct nfp_rtsym_table *rtbl, int idx);
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const struct nfp_rtsym *
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nfp_rtsym_lookup(struct nfp_rtsym_table *rtbl, const char *name);
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u64 nfp_rtsym_read_le(struct nfp_rtsym_table *rtbl, const char *name,
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int *error);
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u8 __iomem *
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nfp_rtsym_map(struct nfp_rtsym_table *rtbl, const char *name, const char *id,
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unsigned int min_size, struct nfp_cpp_area **area);
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#endif /* NFP_NFFW_H */
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@ -289,3 +289,30 @@ u64 nfp_rtsym_read_le(struct nfp_rtsym_table *rtbl, const char *name,
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return ~0ULL;
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return val;
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}
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u8 __iomem *
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nfp_rtsym_map(struct nfp_rtsym_table *rtbl, const char *name, const char *id,
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unsigned int min_size, struct nfp_cpp_area **area)
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{
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const struct nfp_rtsym *sym;
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u8 __iomem *mem;
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sym = nfp_rtsym_lookup(rtbl, name);
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if (!sym)
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return (u8 __iomem *)ERR_PTR(-ENOENT);
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if (sym->size < min_size) {
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nfp_err(rtbl->cpp, "Symbol %s too small\n", name);
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return (u8 __iomem *)ERR_PTR(-EINVAL);
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}
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mem = nfp_cpp_map_area(rtbl->cpp, id, sym->domain, sym->target,
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sym->addr, sym->size, area);
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if (IS_ERR(mem)) {
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nfp_err(rtbl->cpp, "Failed to map symbol %s: %ld\n",
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name, PTR_ERR(mem));
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return mem;
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}
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return mem;
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}
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