nfp: add support for reading nffw info
NFFW info is a resource which contains information about the loaded application firmware. Add code which will allow us to decode it and retrieve MIP location. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski
David S. Miller
Родитель
59a8474888
Коммит
a0d8e02c35
|
|
@ -5,6 +5,7 @@ nfp-objs := \
|
||||||
nfpcore/nfp_cppcore.o \
|
nfpcore/nfp_cppcore.o \
|
||||||
nfpcore/nfp_cpplib.o \
|
nfpcore/nfp_cpplib.o \
|
||||||
nfpcore/nfp_hwinfo.o \
|
nfpcore/nfp_hwinfo.o \
|
||||||
|
nfpcore/nfp_nffw.o \
|
||||||
nfpcore/nfp_resource.o \
|
nfpcore/nfp_resource.o \
|
||||||
nfpcore/nfp_target.o \
|
nfpcore/nfp_target.o \
|
||||||
nfp_main.o \
|
nfp_main.o \
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,323 @@
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2015-2017 Netronome Systems, Inc.
|
||||||
|
*
|
||||||
|
* This software is dual licensed under the GNU General License Version 2,
|
||||||
|
* June 1991 as shown in the file COPYING in the top-level directory of this
|
||||||
|
* source tree or the BSD 2-Clause License provided below. You have the
|
||||||
|
* option to license this software under the complete terms of either license.
|
||||||
|
*
|
||||||
|
* The BSD 2-Clause License:
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or
|
||||||
|
* without modification, are permitted provided that the following
|
||||||
|
* conditions are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above
|
||||||
|
* copyright notice, this list of conditions and the following
|
||||||
|
* disclaimer.
|
||||||
|
*
|
||||||
|
* 2. Redistributions in binary form must reproduce the above
|
||||||
|
* copyright notice, this list of conditions and the following
|
||||||
|
* disclaimer in the documentation and/or other materials
|
||||||
|
* provided with the distribution.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||||
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||||
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||||
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||||
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||||
|
* SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* nfp_nffw.c
|
||||||
|
* Authors: Jakub Kicinski <jakub.kicinski@netronome.com>
|
||||||
|
* Jason McMullan <jason.mcmullan@netronome.com>
|
||||||
|
* Francois H. Theron <francois.theron@netronome.com>
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <linux/kernel.h>
|
||||||
|
#include <linux/slab.h>
|
||||||
|
|
||||||
|
#include "nfp.h"
|
||||||
|
#include "nfp_cpp.h"
|
||||||
|
#include "nfp_nffw.h"
|
||||||
|
#include "nfp6000/nfp6000.h"
|
||||||
|
|
||||||
|
/* Init-CSR owner IDs for firmware map to firmware IDs which start at 4.
|
||||||
|
* Lower IDs are reserved for target and loader IDs.
|
||||||
|
*/
|
||||||
|
#define NFFW_FWID_EXT 3 /* For active MEs that we didn't load. */
|
||||||
|
#define NFFW_FWID_BASE 4
|
||||||
|
|
||||||
|
#define NFFW_FWID_ALL 255
|
||||||
|
|
||||||
|
/**
|
||||||
|
* NFFW_INFO_VERSION history:
|
||||||
|
* 0: This was never actually used (before versioning), but it refers to
|
||||||
|
* the previous struct which had FWINFO_CNT = MEINFO_CNT = 120 that later
|
||||||
|
* changed to 200.
|
||||||
|
* 1: First versioned struct, with
|
||||||
|
* FWINFO_CNT = 120
|
||||||
|
* MEINFO_CNT = 120
|
||||||
|
* 2: FWINFO_CNT = 200
|
||||||
|
* MEINFO_CNT = 200
|
||||||
|
*/
|
||||||
|
#define NFFW_INFO_VERSION_CURRENT 2
|
||||||
|
|
||||||
|
/* Enough for all current chip families */
|
||||||
|
#define NFFW_MEINFO_CNT_V1 120
|
||||||
|
#define NFFW_FWINFO_CNT_V1 120
|
||||||
|
#define NFFW_MEINFO_CNT_V2 200
|
||||||
|
#define NFFW_FWINFO_CNT_V2 200
|
||||||
|
|
||||||
|
/* Work in 32-bit words to make cross-platform endianness easier to handle */
|
||||||
|
|
||||||
|
/** nfp.nffw meinfo **/
|
||||||
|
struct nffw_meinfo {
|
||||||
|
__le32 ctxmask__fwid__meid;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct nffw_fwinfo {
|
||||||
|
__le32 loaded__mu_da__mip_off_hi;
|
||||||
|
__le32 mip_cppid; /* 0 means no MIP */
|
||||||
|
__le32 mip_offset_lo;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct nfp_nffw_info_v1 {
|
||||||
|
struct nffw_meinfo meinfo[NFFW_MEINFO_CNT_V1];
|
||||||
|
struct nffw_fwinfo fwinfo[NFFW_FWINFO_CNT_V1];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct nfp_nffw_info_v2 {
|
||||||
|
struct nffw_meinfo meinfo[NFFW_MEINFO_CNT_V2];
|
||||||
|
struct nffw_fwinfo fwinfo[NFFW_FWINFO_CNT_V2];
|
||||||
|
};
|
||||||
|
|
||||||
|
/** Resource: nfp.nffw main **/
|
||||||
|
struct nfp_nffw_info_data {
|
||||||
|
__le32 flags[2];
|
||||||
|
union {
|
||||||
|
struct nfp_nffw_info_v1 v1;
|
||||||
|
struct nfp_nffw_info_v2 v2;
|
||||||
|
} info;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct nfp_nffw_info {
|
||||||
|
struct nfp_cpp *cpp;
|
||||||
|
struct nfp_resource *res;
|
||||||
|
|
||||||
|
struct nfp_nffw_info_data fwinf;
|
||||||
|
};
|
||||||
|
|
||||||
|
/* flg_info_version = flags[0]<27:16>
|
||||||
|
* This is a small version counter intended only to detect if the current
|
||||||
|
* implementation can read the current struct. Struct changes should be very
|
||||||
|
* rare and as such a 12-bit counter should cover large spans of time. By the
|
||||||
|
* time it wraps around, we don't expect to have 4096 versions of this struct
|
||||||
|
* to be in use at the same time.
|
||||||
|
*/
|
||||||
|
static u32 nffw_res_info_version_get(const struct nfp_nffw_info_data *res)
|
||||||
|
{
|
||||||
|
return (le32_to_cpu(res->flags[0]) >> 16) & 0xfff;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* flg_init = flags[0]<0> */
|
||||||
|
static u32 nffw_res_flg_init_get(const struct nfp_nffw_info_data *res)
|
||||||
|
{
|
||||||
|
return (le32_to_cpu(res->flags[0]) >> 0) & 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* loaded = loaded__mu_da__mip_off_hi<31:31> */
|
||||||
|
static u32 nffw_fwinfo_loaded_get(const struct nffw_fwinfo *fi)
|
||||||
|
{
|
||||||
|
return (le32_to_cpu(fi->loaded__mu_da__mip_off_hi) >> 31) & 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* mip_cppid = mip_cppid */
|
||||||
|
static u32 nffw_fwinfo_mip_cppid_get(const struct nffw_fwinfo *fi)
|
||||||
|
{
|
||||||
|
return le32_to_cpu(fi->mip_cppid);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* loaded = loaded__mu_da__mip_off_hi<8:8> */
|
||||||
|
static u32 nffw_fwinfo_mip_mu_da_get(const struct nffw_fwinfo *fi)
|
||||||
|
{
|
||||||
|
return (le32_to_cpu(fi->loaded__mu_da__mip_off_hi) >> 8) & 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* mip_offset = (loaded__mu_da__mip_off_hi<7:0> << 8) | mip_offset_lo */
|
||||||
|
static u64 nffw_fwinfo_mip_offset_get(const struct nffw_fwinfo *fi)
|
||||||
|
{
|
||||||
|
u64 mip_off_hi = le32_to_cpu(fi->loaded__mu_da__mip_off_hi);
|
||||||
|
|
||||||
|
return (mip_off_hi & 0xFF) << 32 | le32_to_cpu(fi->mip_offset_lo);
|
||||||
|
}
|
||||||
|
|
||||||
|
#define NFP_IMB_TGTADDRESSMODECFG_MODE_of(_x) (((_x) >> 13) & 0x7)
|
||||||
|
#define NFP_IMB_TGTADDRESSMODECFG_ADDRMODE BIT(12)
|
||||||
|
#define NFP_IMB_TGTADDRESSMODECFG_ADDRMODE_32_BIT 0
|
||||||
|
#define NFP_IMB_TGTADDRESSMODECFG_ADDRMODE_40_BIT BIT(12)
|
||||||
|
|
||||||
|
static int nfp_mip_mu_locality_lsb(struct nfp_cpp *cpp)
|
||||||
|
{
|
||||||
|
unsigned int mode, addr40;
|
||||||
|
u32 xpbaddr, imbcppat;
|
||||||
|
int err;
|
||||||
|
|
||||||
|
/* Hardcoded XPB IMB Base, island 0 */
|
||||||
|
xpbaddr = 0x000a0000 + NFP_CPP_TARGET_MU * 4;
|
||||||
|
err = nfp_xpb_readl(cpp, xpbaddr, &imbcppat);
|
||||||
|
if (err < 0)
|
||||||
|
return err;
|
||||||
|
|
||||||
|
mode = NFP_IMB_TGTADDRESSMODECFG_MODE_of(imbcppat);
|
||||||
|
addr40 = !!(imbcppat & NFP_IMB_TGTADDRESSMODECFG_ADDRMODE);
|
||||||
|
|
||||||
|
return nfp_cppat_mu_locality_lsb(mode, addr40);
|
||||||
|
}
|
||||||
|
|
||||||
|
static unsigned int
|
||||||
|
nffw_res_fwinfos(struct nfp_nffw_info_data *fwinf, struct nffw_fwinfo **arr)
|
||||||
|
{
|
||||||
|
/* For the this code, version 0 is most likely to be
|
||||||
|
* version 1 in this case. Since the kernel driver
|
||||||
|
* does not take responsibility for initialising the
|
||||||
|
* nfp.nffw resource, any previous code (CA firmware or
|
||||||
|
* userspace) that left the version 0 and did set
|
||||||
|
* the init flag is going to be version 1.
|
||||||
|
*/
|
||||||
|
switch (nffw_res_info_version_get(fwinf)) {
|
||||||
|
case 0:
|
||||||
|
case 1:
|
||||||
|
*arr = &fwinf->info.v1.fwinfo[0];
|
||||||
|
return NFFW_FWINFO_CNT_V1;
|
||||||
|
case 2:
|
||||||
|
*arr = &fwinf->info.v2.fwinfo[0];
|
||||||
|
return NFFW_FWINFO_CNT_V2;
|
||||||
|
default:
|
||||||
|
*arr = NULL;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* nfp_nffw_info_open() - Acquire the lock on the NFFW table
|
||||||
|
* @cpp: NFP CPP handle
|
||||||
|
*
|
||||||
|
* Return: 0, or -ERRNO
|
||||||
|
*/
|
||||||
|
struct nfp_nffw_info *nfp_nffw_info_open(struct nfp_cpp *cpp)
|
||||||
|
{
|
||||||
|
struct nfp_nffw_info_data *fwinf;
|
||||||
|
struct nfp_nffw_info *state;
|
||||||
|
u32 info_ver;
|
||||||
|
int err;
|
||||||
|
|
||||||
|
state = kzalloc(sizeof(*state), GFP_KERNEL);
|
||||||
|
if (!state)
|
||||||
|
return ERR_PTR(-ENOMEM);
|
||||||
|
|
||||||
|
state->res = nfp_resource_acquire(cpp, NFP_RESOURCE_NFP_NFFW);
|
||||||
|
if (IS_ERR(state->res))
|
||||||
|
goto err_free;
|
||||||
|
|
||||||
|
fwinf = &state->fwinf;
|
||||||
|
|
||||||
|
if (sizeof(*fwinf) > nfp_resource_size(state->res))
|
||||||
|
goto err_release;
|
||||||
|
|
||||||
|
err = nfp_cpp_read(cpp, nfp_resource_cpp_id(state->res),
|
||||||
|
nfp_resource_address(state->res),
|
||||||
|
fwinf, sizeof(*fwinf));
|
||||||
|
if (err < sizeof(*fwinf))
|
||||||
|
goto err_release;
|
||||||
|
|
||||||
|
if (!nffw_res_flg_init_get(fwinf))
|
||||||
|
goto err_release;
|
||||||
|
|
||||||
|
info_ver = nffw_res_info_version_get(fwinf);
|
||||||
|
if (info_ver > NFFW_INFO_VERSION_CURRENT)
|
||||||
|
goto err_release;
|
||||||
|
|
||||||
|
state->cpp = cpp;
|
||||||
|
return state;
|
||||||
|
|
||||||
|
err_release:
|
||||||
|
nfp_resource_release(state->res);
|
||||||
|
err_free:
|
||||||
|
kfree(state);
|
||||||
|
return ERR_PTR(-EIO);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* nfp_nffw_info_release() - Release the lock on the NFFW table
|
||||||
|
* @state: NFP FW info state
|
||||||
|
*
|
||||||
|
* Return: 0, or -ERRNO
|
||||||
|
*/
|
||||||
|
void nfp_nffw_info_close(struct nfp_nffw_info *state)
|
||||||
|
{
|
||||||
|
nfp_resource_release(state->res);
|
||||||
|
kfree(state);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* nfp_nffw_info_fwid_first() - Return the first firmware ID in the NFFW
|
||||||
|
* @state: NFP FW info state
|
||||||
|
*
|
||||||
|
* Return: First NFFW firmware info, NULL on failure
|
||||||
|
*/
|
||||||
|
static struct nffw_fwinfo *nfp_nffw_info_fwid_first(struct nfp_nffw_info *state)
|
||||||
|
{
|
||||||
|
struct nffw_fwinfo *fwinfo;
|
||||||
|
unsigned int cnt, i;
|
||||||
|
|
||||||
|
cnt = nffw_res_fwinfos(&state->fwinf, &fwinfo);
|
||||||
|
if (!cnt)
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
for (i = 0; i < cnt; i++)
|
||||||
|
if (nffw_fwinfo_loaded_get(&fwinfo[i]))
|
||||||
|
return &fwinfo[i];
|
||||||
|
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* nfp_nffw_info_mip_first() - Retrieve the location of the first FW's MIP
|
||||||
|
* @state: NFP FW info state
|
||||||
|
* @cpp_id: Pointer to the CPP ID of the MIP
|
||||||
|
* @off: Pointer to the CPP Address of the MIP
|
||||||
|
*
|
||||||
|
* Return: 0, or -ERRNO
|
||||||
|
*/
|
||||||
|
int nfp_nffw_info_mip_first(struct nfp_nffw_info *state, u32 *cpp_id, u64 *off)
|
||||||
|
{
|
||||||
|
struct nffw_fwinfo *fwinfo;
|
||||||
|
|
||||||
|
fwinfo = nfp_nffw_info_fwid_first(state);
|
||||||
|
if (!fwinfo)
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
*cpp_id = nffw_fwinfo_mip_cppid_get(fwinfo);
|
||||||
|
*off = nffw_fwinfo_mip_offset_get(fwinfo);
|
||||||
|
|
||||||
|
if (nffw_fwinfo_mip_mu_da_get(fwinfo)) {
|
||||||
|
int locality_off;
|
||||||
|
|
||||||
|
if (NFP_CPP_ID_TARGET_of(*cpp_id) != NFP_CPP_TARGET_MU)
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
locality_off = nfp_mip_mu_locality_lsb(state->cpp);
|
||||||
|
if (locality_off < 0)
|
||||||
|
return locality_off;
|
||||||
|
|
||||||
|
*off &= ~(NFP_MU_ADDR_ACCESS_TYPE_MASK << locality_off);
|
||||||
|
*off |= NFP_MU_ADDR_ACCESS_TYPE_DIRECT << locality_off;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,51 @@
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2015-2017 Netronome Systems, Inc.
|
||||||
|
*
|
||||||
|
* This software is dual licensed under the GNU General License Version 2,
|
||||||
|
* June 1991 as shown in the file COPYING in the top-level directory of this
|
||||||
|
* source tree or the BSD 2-Clause License provided below. You have the
|
||||||
|
* option to license this software under the complete terms of either license.
|
||||||
|
*
|
||||||
|
* The BSD 2-Clause License:
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or
|
||||||
|
* without modification, are permitted provided that the following
|
||||||
|
* conditions are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above
|
||||||
|
* copyright notice, this list of conditions and the following
|
||||||
|
* disclaimer.
|
||||||
|
*
|
||||||
|
* 2. Redistributions in binary form must reproduce the above
|
||||||
|
* copyright notice, this list of conditions and the following
|
||||||
|
* disclaimer in the documentation and/or other materials
|
||||||
|
* provided with the distribution.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||||
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||||
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||||
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||||
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||||
|
* SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* nfp_nffw.h
|
||||||
|
* Authors: Jason McMullan <jason.mcmullan@netronome.com>
|
||||||
|
* Francois H. Theron <francois.theron@netronome.com>
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef NFP_NFFW_H
|
||||||
|
#define NFP_NFFW_H
|
||||||
|
|
||||||
|
/* Implemented in nfp_nffw.c */
|
||||||
|
|
||||||
|
struct nfp_nffw_info;
|
||||||
|
|
||||||
|
struct nfp_nffw_info *nfp_nffw_info_open(struct nfp_cpp *cpp);
|
||||||
|
void nfp_nffw_info_close(struct nfp_nffw_info *state);
|
||||||
|
int nfp_nffw_info_mip_first(struct nfp_nffw_info *state, u32 *cpp_id, u64 *off);
|
||||||
|
|
||||||
|
#endif /* NFP_NFFW_H */
|
||||||
Загрузка…
Ссылка в новой задаче