diff options
Diffstat (limited to 'drivers/net/nfp/nfpcore/nfp-common')
| -rw-r--r-- | drivers/net/nfp/nfpcore/nfp-common/nfp_cppat.h | 722 | ||||
| -rw-r--r-- | drivers/net/nfp/nfpcore/nfp-common/nfp_platform.h | 35 | ||||
| -rw-r--r-- | drivers/net/nfp/nfpcore/nfp-common/nfp_resid.h | 592 |
3 files changed, 1349 insertions, 0 deletions
diff --git a/drivers/net/nfp/nfpcore/nfp-common/nfp_cppat.h b/drivers/net/nfp/nfpcore/nfp-common/nfp_cppat.h new file mode 100644 index 00000000..6e380cca --- /dev/null +++ b/drivers/net/nfp/nfpcore/nfp-common/nfp_cppat.h @@ -0,0 +1,722 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Netronome Systems, Inc. + * All rights reserved. + */ + +#ifndef __NFP_CPPAT_H__ +#define __NFP_CPPAT_H__ + +#include "nfp_platform.h" +#include "nfp_resid.h" + +/* This file contains helpers for creating CPP commands + * + * All magic NFP-6xxx IMB 'mode' numbers here are from: + * Databook (1 August 2013) + * - System Overview and Connectivity + * -- Internal Connectivity + * --- Distributed Switch Fabric - Command Push/Pull (DSF-CPP) Bus + * ---- CPP addressing + * ----- Table 3.6. CPP Address Translation Mode Commands + */ + +#define _NIC_NFP6000_MU_LOCALITY_DIRECT 2 + +static inline int +_nfp6000_decode_basic(uint64_t addr, int *dest_island, int cpp_tgt, int mode, + int addr40, int isld1, int isld0); + +static uint64_t +_nic_mask64(int msb, int lsb, int at0) +{ + uint64_t v; + int w = msb - lsb + 1; + + if (w == 64) + return ~(uint64_t)0; + + if ((lsb + w) > 64) + return 0; + + v = (UINT64_C(1) << w) - 1; + + if (at0) + return v; + + return v << lsb; +} + +/* For VQDR, we may not modify the Channel bits, which might overlap + * with the Index bit. When it does, we need to ensure that isld0 == isld1. + */ +static inline int +_nfp6000_encode_basic(uint64_t *addr, int dest_island, int cpp_tgt, int mode, + int addr40, int isld1, int isld0) +{ + uint64_t _u64; + int iid_lsb, idx_lsb; + int i, v = 0; + int isld[2]; + + isld[0] = isld0; + isld[1] = isld1; + + switch (cpp_tgt) { + case NFP6000_CPPTGT_MU: + /* This function doesn't handle MU */ + return NFP_ERRNO(EINVAL); + case NFP6000_CPPTGT_CTXPB: + /* This function doesn't handle CTXPB */ + return NFP_ERRNO(EINVAL); + default: + break; + } + + switch (mode) { + case 0: + if (cpp_tgt == NFP6000_CPPTGT_VQDR && !addr40) { + /* + * In this specific mode we'd rather not modify the + * address but we can verify if the existing contents + * will point to a valid island. + */ + i = _nfp6000_decode_basic(*addr, &v, cpp_tgt, mode, + addr40, isld1, + isld0); + if (i != 0) + /* Full Island ID and channel bits overlap */ + return i; + + /* + * If dest_island is invalid, the current address won't + * go where expected. + */ + if (dest_island != -1 && dest_island != v) + return NFP_ERRNO(EINVAL); + + /* If dest_island was -1, we don't care */ + return 0; + } + + iid_lsb = (addr40) ? 34 : 26; + + /* <39:34> or <31:26> */ + _u64 = _nic_mask64((iid_lsb + 5), iid_lsb, 0); + *addr &= ~_u64; + *addr |= (((uint64_t)dest_island) << iid_lsb) & _u64; + return 0; + case 1: + if (cpp_tgt == NFP6000_CPPTGT_VQDR && !addr40) { + i = _nfp6000_decode_basic(*addr, &v, cpp_tgt, mode, + addr40, isld1, isld0); + if (i != 0) + /* Full Island ID and channel bits overlap */ + return i; + + /* + * If dest_island is invalid, the current address won't + * go where expected. + */ + if (dest_island != -1 && dest_island != v) + return NFP_ERRNO(EINVAL); + + /* If dest_island was -1, we don't care */ + return 0; + } + + idx_lsb = (addr40) ? 39 : 31; + if (dest_island == isld0) { + /* Only need to clear the Index bit */ + *addr &= ~_nic_mask64(idx_lsb, idx_lsb, 0); + return 0; + } + + if (dest_island == isld1) { + /* Only need to set the Index bit */ + *addr |= (UINT64_C(1) << idx_lsb); + return 0; + } + + return NFP_ERRNO(ENODEV); + case 2: + if (cpp_tgt == NFP6000_CPPTGT_VQDR && !addr40) { + /* iid<0> = addr<30> = channel<0> */ + /* channel<1> = addr<31> = Index */ + + /* + * Special case where we allow channel bits to be set + * before hand and with them select an island. + * So we need to confirm that it's at least plausible. + */ + i = _nfp6000_decode_basic(*addr, &v, cpp_tgt, mode, + addr40, isld1, isld0); + if (i != 0) + /* Full Island ID and channel bits overlap */ + return i; + + /* + * If dest_island is invalid, the current address won't + * go where expected. + */ + if (dest_island != -1 && dest_island != v) + return NFP_ERRNO(EINVAL); + + /* If dest_island was -1, we don't care */ + return 0; + } + + /* + * Make sure we compare against isldN values by clearing the + * LSB. This is what the silicon does. + **/ + isld[0] &= ~1; + isld[1] &= ~1; + + idx_lsb = (addr40) ? 39 : 31; + iid_lsb = idx_lsb - 1; + + /* + * Try each option, take first one that fits. Not sure if we + * would want to do some smarter searching and prefer 0 or non-0 + * island IDs. + */ + + for (i = 0; i < 2; i++) { + for (v = 0; v < 2; v++) { + if (dest_island != (isld[i] | v)) + continue; + *addr &= ~_nic_mask64(idx_lsb, iid_lsb, 0); + *addr |= (((uint64_t)i) << idx_lsb); + *addr |= (((uint64_t)v) << iid_lsb); + return 0; + } + } + + return NFP_ERRNO(ENODEV); + case 3: + if (cpp_tgt == NFP6000_CPPTGT_VQDR && !addr40) { + /* + * iid<0> = addr<29> = data + * iid<1> = addr<30> = channel<0> + * channel<1> = addr<31> = Index + */ + i = _nfp6000_decode_basic(*addr, &v, cpp_tgt, mode, + addr40, isld1, isld0); + if (i != 0) + /* Full Island ID and channel bits overlap */ + return i; + + if (dest_island != -1 && dest_island != v) + return NFP_ERRNO(EINVAL); + + /* If dest_island was -1, we don't care */ + return 0; + } + + isld[0] &= ~3; + isld[1] &= ~3; + + idx_lsb = (addr40) ? 39 : 31; + iid_lsb = idx_lsb - 2; + + for (i = 0; i < 2; i++) { + for (v = 0; v < 4; v++) { + if (dest_island != (isld[i] | v)) + continue; + *addr &= ~_nic_mask64(idx_lsb, iid_lsb, 0); + *addr |= (((uint64_t)i) << idx_lsb); + *addr |= (((uint64_t)v) << iid_lsb); + return 0; + } + } + return NFP_ERRNO(ENODEV); + default: + break; + } + + return NFP_ERRNO(EINVAL); +} + +static inline int +_nfp6000_decode_basic(uint64_t addr, int *dest_island, int cpp_tgt, int mode, + int addr40, int isld1, int isld0) +{ + int iid_lsb, idx_lsb; + + switch (cpp_tgt) { + case NFP6000_CPPTGT_MU: + /* This function doesn't handle MU */ + return NFP_ERRNO(EINVAL); + case NFP6000_CPPTGT_CTXPB: + /* This function doesn't handle CTXPB */ + return NFP_ERRNO(EINVAL); + default: + break; + } + + switch (mode) { + case 0: + /* + * For VQDR, in this mode for 32-bit addressing it would be + * islands 0, 16, 32 and 48 depending on channel and upper + * address bits. Since those are not all valid islands, most + * decode cases would result in bad island IDs, but we do them + * anyway since this is decoding an address that is already + * assumed to be used as-is to get to sram. + */ + iid_lsb = (addr40) ? 34 : 26; + *dest_island = (int)(addr >> iid_lsb) & 0x3F; + return 0; + case 1: + /* + * For VQDR 32-bit, this would decode as: + * Channel 0: island#0 + * Channel 1: island#0 + * Channel 2: island#1 + * Channel 3: island#1 + * + * That would be valid as long as both islands have VQDR. + * Let's allow this. + */ + + idx_lsb = (addr40) ? 39 : 31; + if (addr & _nic_mask64(idx_lsb, idx_lsb, 0)) + *dest_island = isld1; + else + *dest_island = isld0; + + return 0; + case 2: + /* + * For VQDR 32-bit: + * Channel 0: (island#0 | 0) + * Channel 1: (island#0 | 1) + * Channel 2: (island#1 | 0) + * Channel 3: (island#1 | 1) + * + * Make sure we compare against isldN values by clearing the + * LSB. This is what the silicon does. + */ + isld0 &= ~1; + isld1 &= ~1; + + idx_lsb = (addr40) ? 39 : 31; + iid_lsb = idx_lsb - 1; + + if (addr & _nic_mask64(idx_lsb, idx_lsb, 0)) + *dest_island = isld1 | (int)((addr >> iid_lsb) & 1); + else + *dest_island = isld0 | (int)((addr >> iid_lsb) & 1); + + return 0; + case 3: + /* + * In this mode the data address starts to affect the island ID + * so rather not allow it. In some really specific case one + * could use this to send the upper half of the VQDR channel to + * another MU, but this is getting very specific. However, as + * above for mode 0, this is the decoder and the caller should + * validate the resulting IID. This blindly does what the + * silicon would do. + */ + + isld0 &= ~3; + isld1 &= ~3; + + idx_lsb = (addr40) ? 39 : 31; + iid_lsb = idx_lsb - 2; + + if (addr & _nic_mask64(idx_lsb, idx_lsb, 0)) + *dest_island = isld1 | (int)((addr >> iid_lsb) & 3); + else + *dest_island = isld0 | (int)((addr >> iid_lsb) & 3); + + return 0; + default: + break; + } + + return NFP_ERRNO(EINVAL); +} + +static inline int +_nfp6000_cppat_mu_locality_lsb(int mode, int addr40) +{ + switch (mode) { + case 0: + case 1: + case 2: + case 3: + return (addr40) ? 38 : 30; + default: + break; + } + return NFP_ERRNO(EINVAL); +} + +static inline int +_nfp6000_encode_mu(uint64_t *addr, int dest_island, int mode, int addr40, + int isld1, int isld0) +{ + uint64_t _u64; + int iid_lsb, idx_lsb, locality_lsb; + int i, v; + int isld[2]; + int da; + + isld[0] = isld0; + isld[1] = isld1; + locality_lsb = _nfp6000_cppat_mu_locality_lsb(mode, addr40); + + if (((*addr >> locality_lsb) & 3) == _NIC_NFP6000_MU_LOCALITY_DIRECT) + da = 1; + else + da = 0; + + switch (mode) { + case 0: + iid_lsb = (addr40) ? 32 : 24; + _u64 = _nic_mask64((iid_lsb + 5), iid_lsb, 0); + *addr &= ~_u64; + *addr |= (((uint64_t)dest_island) << iid_lsb) & _u64; + return 0; + case 1: + if (da) { + iid_lsb = (addr40) ? 32 : 24; + _u64 = _nic_mask64((iid_lsb + 5), iid_lsb, 0); + *addr &= ~_u64; + *addr |= (((uint64_t)dest_island) << iid_lsb) & _u64; + return 0; + } + + idx_lsb = (addr40) ? 37 : 29; + if (dest_island == isld0) { + *addr &= ~_nic_mask64(idx_lsb, idx_lsb, 0); + return 0; + } + + if (dest_island == isld1) { + *addr |= (UINT64_C(1) << idx_lsb); + return 0; + } + + return NFP_ERRNO(ENODEV); + case 2: + if (da) { + iid_lsb = (addr40) ? 32 : 24; + _u64 = _nic_mask64((iid_lsb + 5), iid_lsb, 0); + *addr &= ~_u64; + *addr |= (((uint64_t)dest_island) << iid_lsb) & _u64; + return 0; + } + + /* + * Make sure we compare against isldN values by clearing the + * LSB. This is what the silicon does. + */ + isld[0] &= ~1; + isld[1] &= ~1; + + idx_lsb = (addr40) ? 37 : 29; + iid_lsb = idx_lsb - 1; + + /* + * Try each option, take first one that fits. Not sure if we + * would want to do some smarter searching and prefer 0 or + * non-0 island IDs. + */ + + for (i = 0; i < 2; i++) { + for (v = 0; v < 2; v++) { + if (dest_island != (isld[i] | v)) + continue; + *addr &= ~_nic_mask64(idx_lsb, iid_lsb, 0); + *addr |= (((uint64_t)i) << idx_lsb); + *addr |= (((uint64_t)v) << iid_lsb); + return 0; + } + } + return NFP_ERRNO(ENODEV); + case 3: + /* + * Only the EMU will use 40 bit addressing. Silently set the + * direct locality bit for everyone else. The SDK toolchain + * uses dest_island <= 0 to test for atypical address encodings + * to support access to local-island CTM with a 32-but address + * (high-locality is effectively ignored and just used for + * routing to island #0). + */ + if (dest_island > 0 && + (dest_island < 24 || dest_island > 26)) { + *addr |= ((uint64_t)_NIC_NFP6000_MU_LOCALITY_DIRECT) + << locality_lsb; + da = 1; + } + + if (da) { + iid_lsb = (addr40) ? 32 : 24; + _u64 = _nic_mask64((iid_lsb + 5), iid_lsb, 0); + *addr &= ~_u64; + *addr |= (((uint64_t)dest_island) << iid_lsb) & _u64; + return 0; + } + + isld[0] &= ~3; + isld[1] &= ~3; + + idx_lsb = (addr40) ? 37 : 29; + iid_lsb = idx_lsb - 2; + + for (i = 0; i < 2; i++) { + for (v = 0; v < 4; v++) { + if (dest_island != (isld[i] | v)) + continue; + *addr &= ~_nic_mask64(idx_lsb, iid_lsb, 0); + *addr |= (((uint64_t)i) << idx_lsb); + *addr |= (((uint64_t)v) << iid_lsb); + return 0; + } + } + + return NFP_ERRNO(ENODEV); + default: + break; + } + + return NFP_ERRNO(EINVAL); +} + +static inline int +_nfp6000_decode_mu(uint64_t addr, int *dest_island, int mode, int addr40, + int isld1, int isld0) +{ + int iid_lsb, idx_lsb, locality_lsb; + int da; + + locality_lsb = _nfp6000_cppat_mu_locality_lsb(mode, addr40); + + if (((addr >> locality_lsb) & 3) == _NIC_NFP6000_MU_LOCALITY_DIRECT) + da = 1; + else + da = 0; + + switch (mode) { + case 0: + iid_lsb = (addr40) ? 32 : 24; + *dest_island = (int)(addr >> iid_lsb) & 0x3F; + return 0; + case 1: + if (da) { + iid_lsb = (addr40) ? 32 : 24; + *dest_island = (int)(addr >> iid_lsb) & 0x3F; + return 0; + } + + idx_lsb = (addr40) ? 37 : 29; + + if (addr & _nic_mask64(idx_lsb, idx_lsb, 0)) + *dest_island = isld1; + else + *dest_island = isld0; + + return 0; + case 2: + if (da) { + iid_lsb = (addr40) ? 32 : 24; + *dest_island = (int)(addr >> iid_lsb) & 0x3F; + return 0; + } + /* + * Make sure we compare against isldN values by clearing the + * LSB. This is what the silicon does. + */ + isld0 &= ~1; + isld1 &= ~1; + + idx_lsb = (addr40) ? 37 : 29; + iid_lsb = idx_lsb - 1; + + if (addr & _nic_mask64(idx_lsb, idx_lsb, 0)) + *dest_island = isld1 | (int)((addr >> iid_lsb) & 1); + else + *dest_island = isld0 | (int)((addr >> iid_lsb) & 1); + + return 0; + case 3: + if (da) { + iid_lsb = (addr40) ? 32 : 24; + *dest_island = (int)(addr >> iid_lsb) & 0x3F; + return 0; + } + + isld0 &= ~3; + isld1 &= ~3; + + idx_lsb = (addr40) ? 37 : 29; + iid_lsb = idx_lsb - 2; + + if (addr & _nic_mask64(idx_lsb, idx_lsb, 0)) + *dest_island = isld1 | (int)((addr >> iid_lsb) & 3); + else + *dest_island = isld0 | (int)((addr >> iid_lsb) & 3); + + return 0; + default: + break; + } + + return NFP_ERRNO(EINVAL); +} + +static inline int +_nfp6000_cppat_addr_encode(uint64_t *addr, int dest_island, int cpp_tgt, + int mode, int addr40, int isld1, int isld0) +{ + switch (cpp_tgt) { + case NFP6000_CPPTGT_NBI: + case NFP6000_CPPTGT_VQDR: + case NFP6000_CPPTGT_ILA: + case NFP6000_CPPTGT_PCIE: + case NFP6000_CPPTGT_ARM: + case NFP6000_CPPTGT_CRYPTO: + case NFP6000_CPPTGT_CLS: + return _nfp6000_encode_basic(addr, dest_island, cpp_tgt, mode, + addr40, isld1, isld0); + + case NFP6000_CPPTGT_MU: + return _nfp6000_encode_mu(addr, dest_island, mode, addr40, + isld1, isld0); + + case NFP6000_CPPTGT_CTXPB: + if (mode != 1 || addr40 != 0) + return NFP_ERRNO(EINVAL); + + *addr &= ~_nic_mask64(29, 24, 0); + *addr |= (((uint64_t)dest_island) << 24) & + _nic_mask64(29, 24, 0); + return 0; + default: + break; + } + + return NFP_ERRNO(EINVAL); +} + +static inline int +_nfp6000_cppat_addr_decode(uint64_t addr, int *dest_island, int cpp_tgt, + int mode, int addr40, int isld1, int isld0) +{ + switch (cpp_tgt) { + case NFP6000_CPPTGT_NBI: + case NFP6000_CPPTGT_VQDR: + case NFP6000_CPPTGT_ILA: + case NFP6000_CPPTGT_PCIE: + case NFP6000_CPPTGT_ARM: + case NFP6000_CPPTGT_CRYPTO: + case NFP6000_CPPTGT_CLS: + return _nfp6000_decode_basic(addr, dest_island, cpp_tgt, mode, + addr40, isld1, isld0); + + case NFP6000_CPPTGT_MU: + return _nfp6000_decode_mu(addr, dest_island, mode, addr40, + isld1, isld0); + + case NFP6000_CPPTGT_CTXPB: + if (mode != 1 || addr40 != 0) + return -EINVAL; + *dest_island = (int)(addr >> 24) & 0x3F; + return 0; + default: + break; + } + + return -EINVAL; +} + +static inline int +_nfp6000_cppat_addr_iid_clear(uint64_t *addr, int cpp_tgt, int mode, int addr40) +{ + int iid_lsb, locality_lsb, da; + + switch (cpp_tgt) { + case NFP6000_CPPTGT_NBI: + case NFP6000_CPPTGT_VQDR: + case NFP6000_CPPTGT_ILA: + case NFP6000_CPPTGT_PCIE: + case NFP6000_CPPTGT_ARM: + case NFP6000_CPPTGT_CRYPTO: + case NFP6000_CPPTGT_CLS: + switch (mode) { + case 0: + iid_lsb = (addr40) ? 34 : 26; + *addr &= ~(UINT64_C(0x3F) << iid_lsb); + return 0; + case 1: + iid_lsb = (addr40) ? 39 : 31; + *addr &= ~_nic_mask64(iid_lsb, iid_lsb, 0); + return 0; + case 2: + iid_lsb = (addr40) ? 38 : 30; + *addr &= ~_nic_mask64(iid_lsb + 1, iid_lsb, 0); + return 0; + case 3: + iid_lsb = (addr40) ? 37 : 29; + *addr &= ~_nic_mask64(iid_lsb + 2, iid_lsb, 0); + return 0; + default: + break; + } + case NFP6000_CPPTGT_MU: + locality_lsb = _nfp6000_cppat_mu_locality_lsb(mode, addr40); + da = (((*addr >> locality_lsb) & 3) == + _NIC_NFP6000_MU_LOCALITY_DIRECT); + switch (mode) { + case 0: + iid_lsb = (addr40) ? 32 : 24; + *addr &= ~(UINT64_C(0x3F) << iid_lsb); + return 0; + case 1: + if (da) { + iid_lsb = (addr40) ? 32 : 24; + *addr &= ~(UINT64_C(0x3F) << iid_lsb); + return 0; + } + iid_lsb = (addr40) ? 37 : 29; + *addr &= ~_nic_mask64(iid_lsb, iid_lsb, 0); + return 0; + case 2: + if (da) { + iid_lsb = (addr40) ? 32 : 24; + *addr &= ~(UINT64_C(0x3F) << iid_lsb); + return 0; + } + + iid_lsb = (addr40) ? 36 : 28; + *addr &= ~_nic_mask64(iid_lsb + 1, iid_lsb, 0); + return 0; + case 3: + if (da) { + iid_lsb = (addr40) ? 32 : 24; + *addr &= ~(UINT64_C(0x3F) << iid_lsb); + return 0; + } + + iid_lsb = (addr40) ? 35 : 27; + *addr &= ~_nic_mask64(iid_lsb + 2, iid_lsb, 0); + return 0; + default: + break; + } + case NFP6000_CPPTGT_CTXPB: + if (mode != 1 || addr40 != 0) + return 0; + *addr &= ~(UINT64_C(0x3F) << 24); + return 0; + default: + break; + } + + return NFP_ERRNO(EINVAL); +} + +#endif /* __NFP_CPPAT_H__ */ diff --git a/drivers/net/nfp/nfpcore/nfp-common/nfp_platform.h b/drivers/net/nfp/nfpcore/nfp-common/nfp_platform.h new file mode 100644 index 00000000..d46574b1 --- /dev/null +++ b/drivers/net/nfp/nfpcore/nfp-common/nfp_platform.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Netronome Systems, Inc. + * All rights reserved. + */ + +#ifndef __NFP_PLATFORM_H__ +#define __NFP_PLATFORM_H__ + +#include <fcntl.h> +#include <unistd.h> +#include <stdint.h> +#include <string.h> +#include <stdlib.h> +#include <ctype.h> +#include <inttypes.h> +#include <sys/stat.h> +#include <limits.h> +#include <errno.h> + +#ifndef BIT_ULL +#define BIT(x) (1 << (x)) +#define BIT_ULL(x) (1ULL << (x)) +#endif + +#ifndef ARRAY_SIZE +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) +#endif + +#define NFP_ERRNO(err) (errno = (err), -1) +#define NFP_ERRNO_RET(err, ret) (errno = (err), (ret)) +#define NFP_NOERR(errv) (errno) +#define NFP_ERRPTR(err) (errno = (err), NULL) +#define NFP_PTRERR(errv) (errno) + +#endif /* __NFP_PLATFORM_H__ */ diff --git a/drivers/net/nfp/nfpcore/nfp-common/nfp_resid.h b/drivers/net/nfp/nfpcore/nfp-common/nfp_resid.h new file mode 100644 index 00000000..0e03948e --- /dev/null +++ b/drivers/net/nfp/nfpcore/nfp-common/nfp_resid.h @@ -0,0 +1,592 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Netronome Systems, Inc. + * All rights reserved. + */ + +#ifndef __NFP_RESID_H__ +#define __NFP_RESID_H__ + +#if (!defined(_NFP_RESID_NO_C_FUNC) && \ + (defined(__NFP_TOOL_NFCC) || defined(__NFP_TOOL_NFAS))) +#define _NFP_RESID_NO_C_FUNC +#endif + +#ifndef _NFP_RESID_NO_C_FUNC +#include "nfp_platform.h" +#endif + +/* + * NFP Chip Architectures + * + * These are semi-arbitrary values to indicate an NFP architecture. + * They serve as a software view of a group of chip families, not necessarily a + * direct mapping to actual hardware design. + */ +#define NFP_CHIP_ARCH_YD 1 +#define NFP_CHIP_ARCH_TH 2 + +/* + * NFP Chip Families. + * + * These are not enums, because they need to be microcode compatible. + * They are also not maskable. + * + * Note: The NFP-4xxx family is handled as NFP-6xxx in most software + * components. + * + */ +#define NFP_CHIP_FAMILY_NFP6000 0x6000 /* ARCH_TH */ + +/* NFP Microengine/Flow Processing Core Versions */ +#define NFP_CHIP_ME_VERSION_2_7 0x0207 +#define NFP_CHIP_ME_VERSION_2_8 0x0208 +#define NFP_CHIP_ME_VERSION_2_9 0x0209 + +/* NFP Chip Base Revisions. Minor stepping can just be added to these */ +#define NFP_CHIP_REVISION_A0 0x00 +#define NFP_CHIP_REVISION_B0 0x10 +#define NFP_CHIP_REVISION_C0 0x20 +#define NFP_CHIP_REVISION_PF 0xff /* Maximum possible revision */ + +/* CPP Targets for each chip architecture */ +#define NFP6000_CPPTGT_NBI 1 +#define NFP6000_CPPTGT_VQDR 2 +#define NFP6000_CPPTGT_ILA 6 +#define NFP6000_CPPTGT_MU 7 +#define NFP6000_CPPTGT_PCIE 9 +#define NFP6000_CPPTGT_ARM 10 +#define NFP6000_CPPTGT_CRYPTO 12 +#define NFP6000_CPPTGT_CTXPB 14 +#define NFP6000_CPPTGT_CLS 15 + +/* + * Wildcard indicating a CPP read or write action + * + * The action used will be either read or write depending on whether a read or + * write instruction/call is performed on the NFP_CPP_ID. It is recomended that + * the RW action is used even if all actions to be performed on a NFP_CPP_ID are + * known to be only reads or writes. Doing so will in many cases save NFP CPP + * internal software resources. + */ +#define NFP_CPP_ACTION_RW 32 + +#define NFP_CPP_TARGET_ID_MASK 0x1f + +/* + * NFP_CPP_ID - pack target, token, and action into a CPP ID. + * + * Create a 32-bit CPP identifier representing the access to be made. + * These identifiers are used as parameters to other NFP CPP functions. Some + * CPP devices may allow wildcard identifiers to be specified. + * + * @param[in] target NFP CPP target id + * @param[in] action NFP CPP action id + * @param[in] token NFP CPP token id + * @return NFP CPP ID + */ +#define NFP_CPP_ID(target, action, token) \ + ((((target) & 0x7f) << 24) | (((token) & 0xff) << 16) | \ + (((action) & 0xff) << 8)) + +#define NFP_CPP_ISLAND_ID(target, action, token, island) \ + ((((target) & 0x7f) << 24) | (((token) & 0xff) << 16) | \ + (((action) & 0xff) << 8) | (((island) & 0xff) << 0)) + +#ifndef _NFP_RESID_NO_C_FUNC + +/** + * Return the NFP CPP target of a NFP CPP ID + * @param[in] id NFP CPP ID + * @return NFP CPP target + */ +static inline uint8_t +NFP_CPP_ID_TARGET_of(uint32_t id) +{ + return (id >> 24) & NFP_CPP_TARGET_ID_MASK; +} + +/* + * Return the NFP CPP token of a NFP CPP ID + * @param[in] id NFP CPP ID + * @return NFP CPP token + */ +static inline uint8_t +NFP_CPP_ID_TOKEN_of(uint32_t id) +{ + return (id >> 16) & 0xff; +} + +/* + * Return the NFP CPP action of a NFP CPP ID + * @param[in] id NFP CPP ID + * @return NFP CPP action + */ +static inline uint8_t +NFP_CPP_ID_ACTION_of(uint32_t id) +{ + return (id >> 8) & 0xff; +} + +/* + * Return the NFP CPP action of a NFP CPP ID + * @param[in] id NFP CPP ID + * @return NFP CPP action + */ +static inline uint8_t +NFP_CPP_ID_ISLAND_of(uint32_t id) +{ + return (id) & 0xff; +} + +#endif /* _NFP_RESID_NO_C_FUNC */ + +/* + * Check if @p chip_family is an ARCH_TH chip. + * @param chip_family One of NFP_CHIP_FAMILY_* + */ +#define NFP_FAMILY_IS_ARCH_TH(chip_family) \ + ((int)(chip_family) == (int)NFP_CHIP_FAMILY_NFP6000) + +/* + * Get the NFP_CHIP_ARCH_* of @p chip_family. + * @param chip_family One of NFP_CHIP_FAMILY_* + */ +#define NFP_FAMILY_ARCH(x) \ + (__extension__ ({ \ + typeof(x) _x = (x); \ + (NFP_FAMILY_IS_ARCH_TH(_x) ? NFP_CHIP_ARCH_TH : \ + NFP_FAMILY_IS_ARCH_YD(_x) ? NFP_CHIP_ARCH_YD : -1) \ + })) + +/* + * Check if @p chip_family is an NFP-6xxx chip. + * @param chip_family One of NFP_CHIP_FAMILY_* + */ +#define NFP_FAMILY_IS_NFP6000(chip_family) \ + ((int)(chip_family) == (int)NFP_CHIP_FAMILY_NFP6000) + +/* + * Make microengine ID for NFP-6xxx. + * @param island_id Island ID. + * @param menum ME number, 0 based, within island. + * + * NOTE: menum should really be unsigned - MSC compiler throws error (not + * warning) if a clause is always true i.e. menum >= 0 if cluster_num is type + * unsigned int hence the cast of the menum to an int in that particular clause + */ +#define NFP6000_MEID(a, b) \ + (__extension__ ({ \ + typeof(a) _a = (a); \ + typeof(b) _b = (b); \ + (((((int)(_a) & 0x3F) == (int)(_a)) && \ + (((int)(_b) >= 0) && ((int)(_b) < 12))) ? \ + (int)(((_a) << 4) | ((_b) + 4)) : -1) \ + })) + +/* + * Do a general sanity check on the ME ID. + * The check is on the highest possible island ID for the chip family and the + * microengine number must be a master ID. + * @param meid ME ID as created by NFP6000_MEID + */ +#define NFP6000_MEID_IS_VALID(meid) \ + (__extension__ ({ \ + typeof(meid) _a = (meid); \ + ((((_a) >> 4) < 64) && (((_a) >> 4) >= 0) && \ + (((_a) & 0xF) >= 4)) \ + })) + +/* + * Extract island ID from ME ID. + * @param meid ME ID as created by NFP6000_MEID + */ +#define NFP6000_MEID_ISLAND_of(meid) (((meid) >> 4) & 0x3F) + +/* + * Extract microengine number (0 based) from ME ID. + * @param meid ME ID as created by NFP6000_MEID + */ +#define NFP6000_MEID_MENUM_of(meid) (((meid) & 0xF) - 4) + +/* + * Extract microengine group number (0 based) from ME ID. + * The group is two code-sharing microengines, so group 0 refers to MEs 0,1, + * group 1 refers to MEs 2,3 etc. + * @param meid ME ID as created by NFP6000_MEID + */ +#define NFP6000_MEID_MEGRP_of(meid) (NFP6000_MEID_MENUM_of(meid) >> 1) + +#ifndef _NFP_RESID_NO_C_FUNC + +/* + * Convert a string to an ME ID. + * + * @param s A string of format iX.meY + * @param endptr If non-NULL, *endptr will point to the trailing string + * after the ME ID part of the string, which is either + * an empty string or the first character after the separating + * period. + * @return ME ID on success, -1 on error. + */ +int nfp6000_idstr2meid(const char *s, const char **endptr); + +/* + * Extract island ID from string. + * + * Example: + * char *c; + * int val = nfp6000_idstr2island("i32.me5", &c); + * // val == 32, c == "me5" + * val = nfp6000_idstr2island("i32", &c); + * // val == 32, c == "" + * + * @param s A string of format "iX.anything" or "iX" + * @param endptr If non-NULL, *endptr will point to the trailing string + * after the island part of the string, which is either + * an empty string or the first character after the separating + * period. + * @return If successful, the island ID, -1 on error. + */ +int nfp6000_idstr2island(const char *s, const char **endptr); + +/* + * Extract microengine number from string. + * + * Example: + * char *c; + * int menum = nfp6000_idstr2menum("me5.anything", &c); + * // menum == 5, c == "anything" + * menum = nfp6000_idstr2menum("me5", &c); + * // menum == 5, c == "" + * + * @param s A string of format "meX.anything" or "meX" + * @param endptr If non-NULL, *endptr will point to the trailing string + * after the ME number part of the string, which is either + * an empty string or the first character after the separating + * period. + * @return If successful, the ME number, -1 on error. + */ +int nfp6000_idstr2menum(const char *s, const char **endptr); + +/* + * Extract context number from string. + * + * Example: + * char *c; + * int val = nfp6000_idstr2ctxnum("ctx5.anything", &c); + * // val == 5, c == "anything" + * val = nfp6000_idstr2ctxnum("ctx5", &c); + * // val == 5, c == "" + * + * @param s A string of format "ctxN.anything" or "ctxN" + * @param endptr If non-NULL, *endptr will point to the trailing string + * after the context number part of the string, which is either + * an empty string or the first character after the separating + * period. + * @return If successful, the context number, -1 on error. + */ +int nfp6000_idstr2ctxnum(const char *s, const char **endptr); + +/* + * Extract microengine group number from string. + * + * Example: + * char *c; + * int val = nfp6000_idstr2megrp("tg2.anything", &c); + * // val == 2, c == "anything" + * val = nfp6000_idstr2megrp("tg5", &c); + * // val == 2, c == "" + * + * @param s A string of format "tgX.anything" or "tgX" + * @param endptr If non-NULL, *endptr will point to the trailing string + * after the ME group part of the string, which is either + * an empty string or the first character after the separating + * period. + * @return If successful, the ME group number, -1 on error. + */ +int nfp6000_idstr2megrp(const char *s, const char **endptr); + +/* + * Create ME ID string of format "iX[.meY]". + * + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param meid Microengine ID. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp6000_meid2str(char *s, int meid); + +/* + * Create ME ID string of format "name[.meY]" or "iX[.meY]". + * + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param meid Microengine ID. + * @return Pointer to "s" on success, NULL on error. + * + * Similar to nfp6000_meid2str() except use an alias instead of "iX" + * if one exists for the island. + */ +const char *nfp6000_meid2altstr(char *s, int meid); + +/* + * Create string of format "iX". + * + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param island_id Island ID. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp6000_island2str(char *s, int island_id); + +/* + * Create string of format "name", an island alias. + * + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param island_id Island ID. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp6000_island2altstr(char *s, int island_id); + +/* + * Create string of format "meY". + * + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param menum Microengine number within island. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp6000_menum2str(char *s, int menum); + +/* + * Create string of format "ctxY". + * + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param ctxnum Context number within microengine. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp6000_ctxnum2str(char *s, int ctxnum); + +/* + * Create string of format "tgY". + * + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param megrp Microengine group number within cluster. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp6000_megrp2str(char *s, int megrp); + +/* + * Convert a string to an ME ID. + * + * @param chip_family Chip family ID + * @param s A string of format iX.meY (or clX.meY) + * @param endptr If non-NULL, *endptr will point to the trailing + * string after the ME ID part of the string, which + * is either an empty string or the first character + * after the separating period. + * @return ME ID on success, -1 on error. + */ +int nfp_idstr2meid(int chip_family, const char *s, const char **endptr); + +/* + * Extract island ID from string. + * + * Example: + * char *c; + * int val = nfp_idstr2island(chip, "i32.me5", &c); + * // val == 32, c == "me5" + * val = nfp_idstr2island(chip, "i32", &c); + * // val == 32, c == "" + * + * @param chip_family Chip family ID + * @param s A string of format "iX.anything" or "iX" + * @param endptr If non-NULL, *endptr will point to the trailing + * striong after the ME ID part of the string, which + * is either an empty string or the first character + * after the separating period. + * @return The island ID on succes, -1 on error. + */ +int nfp_idstr2island(int chip_family, const char *s, const char **endptr); + +/* + * Extract microengine number from string. + * + * Example: + * char *c; + * int menum = nfp_idstr2menum("me5.anything", &c); + * // menum == 5, c == "anything" + * menum = nfp_idstr2menum("me5", &c); + * // menum == 5, c == "" + * + * @param chip_family Chip family ID + * @param s A string of format "meX.anything" or "meX" + * @param endptr If non-NULL, *endptr will point to the trailing + * striong after the ME ID part of the string, which + * is either an empty string or the first character + * after the separating period. + * @return The ME number on succes, -1 on error. + */ +int nfp_idstr2menum(int chip_family, const char *s, const char **endptr); + +/* + * Extract context number from string. + * + * Example: + * char *c; + * int val = nfp_idstr2ctxnum("ctx5.anything", &c); + * // val == 5, c == "anything" + * val = nfp_idstr2ctxnum("ctx5", &c); + * // val == 5, c == "" + * + * @param s A string of format "ctxN.anything" or "ctxN" + * @param endptr If non-NULL, *endptr will point to the trailing string + * after the context number part of the string, which is either + * an empty string or the first character after the separating + * period. + * @return If successful, the context number, -1 on error. + */ +int nfp_idstr2ctxnum(int chip_family, const char *s, const char **endptr); + +/* + * Extract microengine group number from string. + * + * Example: + * char *c; + * int val = nfp_idstr2megrp("tg2.anything", &c); + * // val == 2, c == "anything" + * val = nfp_idstr2megrp("tg5", &c); + * // val == 5, c == "" + * + * @param s A string of format "tgX.anything" or "tgX" + * @param endptr If non-NULL, *endptr will point to the trailing string + * after the ME group part of the string, which is either + * an empty string or the first character after the separating + * period. + * @return If successful, the ME group number, -1 on error. + */ +int nfp_idstr2megrp(int chip_family, const char *s, const char **endptr); + +/* + * Create ME ID string of format "iX[.meY]". + * + * @param chip_family Chip family ID + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param meid Microengine ID. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp_meid2str(int chip_family, char *s, int meid); + +/* + * Create ME ID string of format "name[.meY]" or "iX[.meY]". + * + * @param chip_family Chip family ID + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param meid Microengine ID. + * @return Pointer to "s" on success, NULL on error. + * + * Similar to nfp_meid2str() except use an alias instead of "iX" + * if one exists for the island. + */ +const char *nfp_meid2altstr(int chip_family, char *s, int meid); + +/* + * Create string of format "iX". + * + * @param chip_family Chip family ID + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param island_id Island ID. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp_island2str(int chip_family, char *s, int island_id); + +/* + * Create string of format "name", an island alias. + * + * @param chip_family Chip family ID + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param island_id Island ID. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp_island2altstr(int chip_family, char *s, int island_id); + +/* + * Create string of format "meY". + * + * @param chip_family Chip family ID + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param menum Microengine number within island. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp_menum2str(int chip_family, char *s, int menum); + +/* + * Create string of format "ctxY". + * + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param ctxnum Context number within microengine. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp_ctxnum2str(int chip_family, char *s, int ctxnum); + +/* + * Create string of format "tgY". + * + * @param s Pointer to char buffer of size NFP_MEID_STR_SZ. + * The resulting string is output here. + * @param megrp Microengine group number within cluster. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp_megrp2str(int chip_family, char *s, int megrp); + +/* + * Convert a two character string to revision number. + * + * Revision integer is 0x00 for A0, 0x11 for B1 etc. + * + * @param s Two character string. + * @return Revision number, -1 on error + */ +int nfp_idstr2rev(const char *s); + +/* + * Create string from revision number. + * + * String will be upper case. + * + * @param s Pointer to char buffer with size of at least 3 + * for 2 characters and string terminator. + * @param rev Revision number. + * @return Pointer to "s" on success, NULL on error. + */ +const char *nfp_rev2str(char *s, int rev); + +/* + * Get the NFP CPP address from a string + * + * String is in the format [island@]target[:[action:[token:]]address] + * + * @param chip_family Chip family ID + * @param tid Pointer to string to parse + * @param cpp_idp Pointer to CPP ID + * @param cpp_addrp Pointer to CPP address + * @return 0 on success, or -1 and errno + */ +int nfp_str2cpp(int chip_family, + const char *tid, + uint32_t *cpp_idp, + uint64_t *cpp_addrp); + + +#endif /* _NFP_RESID_NO_C_FUNC */ + +#endif /* __NFP_RESID_H__ */ |