numam-dpdk/drivers/net/sfc/base/mcdi_mon.c

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/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright(c) 2019-2020 Xilinx, Inc.
* Copyright(c) 2009-2019 Solarflare Communications Inc.
*/
#include "efx.h"
#include "efx_impl.h"
#include "mcdi_mon.h"
#if EFSYS_OPT_MON_MCDI
#if EFSYS_OPT_MON_STATS
/* Get port mask from one-based MCDI port number */
#define MCDI_MON_PORT_MASK(_emip) (1U << ((_emip)->emi_port - 1))
#define MCDI_STATIC_SENSOR_ASSERT(_field) \
EFX_STATIC_ASSERT(MC_CMD_SENSOR_STATE_ ## _field \
== EFX_MON_STAT_STATE_ ## _field)
static void
mcdi_mon_decode_stats(
__in efx_nic_t *enp,
__in_bcount(sensor_mask_size) uint32_t *sensor_mask,
__in size_t sensor_mask_size,
__in_opt efsys_mem_t *esmp,
__out_bcount_opt(sensor_mask_size) uint32_t *stat_maskp,
__inout_ecount_opt(EFX_MON_NSTATS) efx_mon_stat_value_t *stat)
{
efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
efx_mon_stat_portmask_t port_mask;
uint16_t sensor;
size_t sensor_max;
uint32_t stat_mask[(EFX_MON_NSTATS + 31) / 32];
uint32_t idx = 0;
uint32_t page = 0;
/* Assert the MC_CMD_SENSOR and EFX_MON_STATE namespaces agree */
MCDI_STATIC_SENSOR_ASSERT(OK);
MCDI_STATIC_SENSOR_ASSERT(WARNING);
MCDI_STATIC_SENSOR_ASSERT(FATAL);
MCDI_STATIC_SENSOR_ASSERT(BROKEN);
MCDI_STATIC_SENSOR_ASSERT(NO_READING);
sensor_max = 8 * sensor_mask_size;
EFSYS_ASSERT(emip->emi_port > 0); /* MCDI port number is one-based */
port_mask = (efx_mon_stat_portmask_t)MCDI_MON_PORT_MASK(emip);
memset(stat_mask, 0, sizeof (stat_mask));
/*
* The MCDI sensor readings in the DMA buffer are a packed array of
* MC_CMD_SENSOR_VALUE_ENTRY structures, which only includes entries for
* supported sensors (bit set in sensor_mask). The sensor_mask and
* sensor readings do not include entries for the per-page NEXT_PAGE
* flag.
*
* sensor_mask may legitimately contain MCDI sensors that the driver
* does not understand.
*/
for (sensor = 0; sensor < sensor_max; ++sensor) {
efx_mon_stat_t id;
efx_mon_stat_portmask_t stat_portmask = 0;
efx_mon_stat_unit_t stat_unit;
if ((sensor % (MC_CMD_SENSOR_PAGE0_NEXT + 1)) ==
MC_CMD_SENSOR_PAGE0_NEXT) {
/* This sensor is one of the page boundary bits. */
page++;
continue;
}
if (~(sensor_mask[page]) &
(1U << (sensor % (sizeof (sensor_mask[page]) * 8)))) {
/* This sensor is not supported. */
continue;
}
/* Supported sensor, so it is present in the DMA buffer. */
idx++;
if ((efx_mon_mcdi_to_efx_stat(sensor, &id) != B_TRUE) ||
(efx_mon_get_stat_portmap(id, &stat_portmask) != B_TRUE)) {
/* The sensor is not known to the driver. */
continue;
}
if ((stat_portmask & port_mask) == 0) {
/* The sensor is not for this port. */
continue;
}
EFSYS_ASSERT(id < EFX_MON_NSTATS);
/*
* stat_mask is a bitmask indexed by EFX_MON_* monitor statistic
* identifiers from efx_mon_stat_t (without NEXT_PAGE bits).
*
* If there is an entry in the MCDI sensor to monitor statistic
* map then the sensor reading is used for the value of the
* monitor statistic.
*/
stat_mask[id / EFX_MON_MASK_ELEMENT_SIZE] |=
(1U << (id % EFX_MON_MASK_ELEMENT_SIZE));
if (stat != NULL && esmp != NULL && !EFSYS_MEM_IS_NULL(esmp)) {
efx_dword_t dword;
/* Get MCDI sensor reading from DMA buffer */
EFSYS_MEM_READD(esmp, 4 * (idx - 1), &dword);
/* Update EFX monitor stat from MCDI sensor reading */
stat[id].emsv_value = (uint16_t)EFX_DWORD_FIELD(dword,
MC_CMD_SENSOR_VALUE_ENTRY_TYPEDEF_VALUE);
stat[id].emsv_state = (uint16_t)EFX_DWORD_FIELD(dword,
MC_CMD_SENSOR_VALUE_ENTRY_TYPEDEF_STATE);
stat[id].emsv_unit =
efx_mon_get_stat_unit(id, &stat_unit) ?
stat_unit : EFX_MON_STAT_UNIT_UNKNOWN;
}
}
if (stat_maskp != NULL) {
memcpy(stat_maskp, stat_mask, sizeof (stat_mask));
}
}
__checkReturn efx_rc_t
mcdi_mon_ev(
__in efx_nic_t *enp,
__in efx_qword_t *eqp,
__out efx_mon_stat_t *idp,
__out efx_mon_stat_value_t *valuep)
{
efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
efx_mon_stat_portmask_t port_mask, sensor_port_mask;
uint16_t sensor;
uint16_t state;
uint16_t value;
efx_mon_stat_t id;
efx_rc_t rc;
EFSYS_ASSERT(emip->emi_port > 0); /* MCDI port number is one-based */
port_mask = MCDI_MON_PORT_MASK(emip);
sensor = (uint16_t)MCDI_EV_FIELD(eqp, SENSOREVT_MONITOR);
state = (uint16_t)MCDI_EV_FIELD(eqp, SENSOREVT_STATE);
value = (uint16_t)MCDI_EV_FIELD(eqp, SENSOREVT_VALUE);
/* Hardware must support this MCDI sensor */
EFSYS_ASSERT3U(sensor, <,
(8 * enp->en_nic_cfg.enc_mcdi_sensor_mask_size));
EFSYS_ASSERT((sensor % (MC_CMD_SENSOR_PAGE0_NEXT + 1)) !=
MC_CMD_SENSOR_PAGE0_NEXT);
EFSYS_ASSERT(enp->en_nic_cfg.enc_mcdi_sensor_maskp != NULL);
EFSYS_ASSERT((enp->en_nic_cfg.enc_mcdi_sensor_maskp[
sensor / (MC_CMD_SENSOR_PAGE0_NEXT + 1)] &
(1U << (sensor % (MC_CMD_SENSOR_PAGE0_NEXT + 1)))) != 0);
/* And we need to understand it, to get port-map */
if (!efx_mon_mcdi_to_efx_stat(sensor, &id)) {
rc = ENOTSUP;
goto fail1;
}
if (!(efx_mon_get_stat_portmap(id, &sensor_port_mask) &&
(port_mask && sensor_port_mask))) {
return (ENODEV);
}
EFSYS_ASSERT(id < EFX_MON_NSTATS);
*idp = id;
valuep->emsv_value = value;
valuep->emsv_state = state;
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
static __checkReturn efx_rc_t
efx_mcdi_read_sensors(
__in efx_nic_t *enp,
__in efsys_mem_t *esmp,
__in uint32_t size)
{
efx_mcdi_req_t req;
net/sfc/base: fix out of bounds read when dereferencing sdup Introduce and use macro to make sure that MCDI buffers allocated on stack are rounded up properly. Fixes: 6f619653b9b1 ("net/sfc/base: import MCDI implementation") Fixes: f7dc06bf35f2 ("net/sfc/base: import 5xxx/6xxx family support") Fixes: e7cd430c864f ("net/sfc/base: import SFN7xxx family support") Fixes: 1dae25112a54 ("net/sfc/base: import built-in selftest") Fixes: 0a7864349106 ("net/sfc/base: import PHY statistics") Fixes: 8c7c723dfe7c ("net/sfc/base: import MAC statistics") Fixes: 5935cd8c47d3 ("net/sfc/base: import RSS support") Fixes: 9ee64bd404fc ("net/sfc/base: import loopback control") Fixes: dfb3b1ce15f6 ("net/sfc/base: import monitors access via MCDI") Fixes: d96a34d165b1 ("net/sfc/base: import NVRAM support") Fixes: 05fce2ce8451 ("net/sfc/base: import libefx licensing") Fixes: ba6afee9a81e ("net/sfc/base: add advanced function to extract FW version") Fixes: c7815c1d1f20 ("net/sfc/base: use proper MCDI command for encap filters") Fixes: 17551f6dffcc ("net/sfc/base: add API to control UDP tunnel ports") Fixes: eff9b666eae5 ("net/sfc/base: move RxDP config get to EF10 NIC code") Fixes: 4aab7f07a645 ("net/sfc/base: refactor EF10 get datapath capabilities") Fixes: 480a13044b8b ("net/sfc/base: support FW subvariant choice") Fixes: 6f60cc4a78b6 ("net/sfc/base: support equal stride super-buffer Rx mode") Fixes: 9a733758c046 ("net/sfc/base: support MARK and FLAG actions in filters") Cc: stable@dpdk.org Signed-off-by: Gautam Dawar <gdawar@solarflare.com> Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2018-09-10 09:33:22 +00:00
EFX_MCDI_DECLARE_BUF(payload, MC_CMD_READ_SENSORS_EXT_IN_LEN,
MC_CMD_READ_SENSORS_EXT_OUT_LEN);
uint32_t addr_lo, addr_hi;
efx_rc_t rc;
if (EFSYS_MEM_SIZE(esmp) < size) {
rc = EINVAL;
goto fail1;
}
req.emr_cmd = MC_CMD_READ_SENSORS;
req.emr_in_buf = payload;
req.emr_in_length = MC_CMD_READ_SENSORS_EXT_IN_LEN;
req.emr_out_buf = payload;
req.emr_out_length = MC_CMD_READ_SENSORS_EXT_OUT_LEN;
addr_lo = (uint32_t)(EFSYS_MEM_ADDR(esmp) & 0xffffffff);
addr_hi = (uint32_t)(EFSYS_MEM_ADDR(esmp) >> 32);
MCDI_IN_SET_DWORD(req, READ_SENSORS_EXT_IN_DMA_ADDR_LO, addr_lo);
MCDI_IN_SET_DWORD(req, READ_SENSORS_EXT_IN_DMA_ADDR_HI, addr_hi);
MCDI_IN_SET_DWORD(req, READ_SENSORS_EXT_IN_LENGTH, size);
efx_mcdi_execute(enp, &req);
return (req.emr_rc);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
static __checkReturn efx_rc_t
efx_mcdi_sensor_info_npages(
__in efx_nic_t *enp,
__out uint32_t *npagesp)
{
efx_mcdi_req_t req;
net/sfc/base: fix out of bounds read when dereferencing sdup Introduce and use macro to make sure that MCDI buffers allocated on stack are rounded up properly. Fixes: 6f619653b9b1 ("net/sfc/base: import MCDI implementation") Fixes: f7dc06bf35f2 ("net/sfc/base: import 5xxx/6xxx family support") Fixes: e7cd430c864f ("net/sfc/base: import SFN7xxx family support") Fixes: 1dae25112a54 ("net/sfc/base: import built-in selftest") Fixes: 0a7864349106 ("net/sfc/base: import PHY statistics") Fixes: 8c7c723dfe7c ("net/sfc/base: import MAC statistics") Fixes: 5935cd8c47d3 ("net/sfc/base: import RSS support") Fixes: 9ee64bd404fc ("net/sfc/base: import loopback control") Fixes: dfb3b1ce15f6 ("net/sfc/base: import monitors access via MCDI") Fixes: d96a34d165b1 ("net/sfc/base: import NVRAM support") Fixes: 05fce2ce8451 ("net/sfc/base: import libefx licensing") Fixes: ba6afee9a81e ("net/sfc/base: add advanced function to extract FW version") Fixes: c7815c1d1f20 ("net/sfc/base: use proper MCDI command for encap filters") Fixes: 17551f6dffcc ("net/sfc/base: add API to control UDP tunnel ports") Fixes: eff9b666eae5 ("net/sfc/base: move RxDP config get to EF10 NIC code") Fixes: 4aab7f07a645 ("net/sfc/base: refactor EF10 get datapath capabilities") Fixes: 480a13044b8b ("net/sfc/base: support FW subvariant choice") Fixes: 6f60cc4a78b6 ("net/sfc/base: support equal stride super-buffer Rx mode") Fixes: 9a733758c046 ("net/sfc/base: support MARK and FLAG actions in filters") Cc: stable@dpdk.org Signed-off-by: Gautam Dawar <gdawar@solarflare.com> Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2018-09-10 09:33:22 +00:00
EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SENSOR_INFO_EXT_IN_LEN,
MC_CMD_SENSOR_INFO_OUT_LENMAX);
int page;
efx_rc_t rc;
EFSYS_ASSERT(npagesp != NULL);
page = 0;
do {
(void) memset(payload, 0, sizeof (payload));
req.emr_cmd = MC_CMD_SENSOR_INFO;
req.emr_in_buf = payload;
req.emr_in_length = MC_CMD_SENSOR_INFO_EXT_IN_LEN;
req.emr_out_buf = payload;
req.emr_out_length = MC_CMD_SENSOR_INFO_OUT_LENMAX;
MCDI_IN_SET_DWORD(req, SENSOR_INFO_EXT_IN_PAGE, page++);
efx_mcdi_execute_quiet(enp, &req);
if (req.emr_rc != 0) {
rc = req.emr_rc;
goto fail1;
}
} while (MCDI_OUT_DWORD(req, SENSOR_INFO_OUT_MASK) &
(1U << MC_CMD_SENSOR_PAGE0_NEXT));
*npagesp = page;
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
static __checkReturn efx_rc_t
efx_mcdi_sensor_info(
__in efx_nic_t *enp,
__out_ecount(npages) uint32_t *sensor_maskp,
__in size_t npages)
{
efx_mcdi_req_t req;
net/sfc/base: fix out of bounds read when dereferencing sdup Introduce and use macro to make sure that MCDI buffers allocated on stack are rounded up properly. Fixes: 6f619653b9b1 ("net/sfc/base: import MCDI implementation") Fixes: f7dc06bf35f2 ("net/sfc/base: import 5xxx/6xxx family support") Fixes: e7cd430c864f ("net/sfc/base: import SFN7xxx family support") Fixes: 1dae25112a54 ("net/sfc/base: import built-in selftest") Fixes: 0a7864349106 ("net/sfc/base: import PHY statistics") Fixes: 8c7c723dfe7c ("net/sfc/base: import MAC statistics") Fixes: 5935cd8c47d3 ("net/sfc/base: import RSS support") Fixes: 9ee64bd404fc ("net/sfc/base: import loopback control") Fixes: dfb3b1ce15f6 ("net/sfc/base: import monitors access via MCDI") Fixes: d96a34d165b1 ("net/sfc/base: import NVRAM support") Fixes: 05fce2ce8451 ("net/sfc/base: import libefx licensing") Fixes: ba6afee9a81e ("net/sfc/base: add advanced function to extract FW version") Fixes: c7815c1d1f20 ("net/sfc/base: use proper MCDI command for encap filters") Fixes: 17551f6dffcc ("net/sfc/base: add API to control UDP tunnel ports") Fixes: eff9b666eae5 ("net/sfc/base: move RxDP config get to EF10 NIC code") Fixes: 4aab7f07a645 ("net/sfc/base: refactor EF10 get datapath capabilities") Fixes: 480a13044b8b ("net/sfc/base: support FW subvariant choice") Fixes: 6f60cc4a78b6 ("net/sfc/base: support equal stride super-buffer Rx mode") Fixes: 9a733758c046 ("net/sfc/base: support MARK and FLAG actions in filters") Cc: stable@dpdk.org Signed-off-by: Gautam Dawar <gdawar@solarflare.com> Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2018-09-10 09:33:22 +00:00
EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SENSOR_INFO_EXT_IN_LEN,
MC_CMD_SENSOR_INFO_OUT_LENMAX);
uint32_t page;
efx_rc_t rc;
EFSYS_ASSERT(sensor_maskp != NULL);
if (npages < 1) {
rc = EINVAL;
goto fail1;
}
for (page = 0; page < npages; page++) {
uint32_t mask;
(void) memset(payload, 0, sizeof (payload));
req.emr_cmd = MC_CMD_SENSOR_INFO;
req.emr_in_buf = payload;
req.emr_in_length = MC_CMD_SENSOR_INFO_EXT_IN_LEN;
req.emr_out_buf = payload;
req.emr_out_length = MC_CMD_SENSOR_INFO_OUT_LENMAX;
MCDI_IN_SET_DWORD(req, SENSOR_INFO_EXT_IN_PAGE, page);
efx_mcdi_execute(enp, &req);
if (req.emr_rc != 0) {
rc = req.emr_rc;
goto fail2;
}
mask = MCDI_OUT_DWORD(req, SENSOR_INFO_OUT_MASK);
if ((page != (npages - 1)) &&
((mask & (1U << MC_CMD_SENSOR_PAGE0_NEXT)) == 0)) {
rc = EINVAL;
goto fail3;
}
sensor_maskp[page] = mask;
}
if (sensor_maskp[npages - 1] & (1U << MC_CMD_SENSOR_PAGE0_NEXT)) {
rc = EINVAL;
goto fail4;
}
return (0);
fail4:
EFSYS_PROBE(fail4);
fail3:
EFSYS_PROBE(fail3);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
static __checkReturn efx_rc_t
efx_mcdi_sensor_info_page(
__in efx_nic_t *enp,
__in uint32_t page,
__out uint32_t *mask_part,
__out_ecount((sizeof (*mask_part) * 8) - 1)
efx_mon_stat_limits_t *limits)
{
efx_mcdi_req_t req;
net/sfc/base: fix out of bounds read when dereferencing sdup Introduce and use macro to make sure that MCDI buffers allocated on stack are rounded up properly. Fixes: 6f619653b9b1 ("net/sfc/base: import MCDI implementation") Fixes: f7dc06bf35f2 ("net/sfc/base: import 5xxx/6xxx family support") Fixes: e7cd430c864f ("net/sfc/base: import SFN7xxx family support") Fixes: 1dae25112a54 ("net/sfc/base: import built-in selftest") Fixes: 0a7864349106 ("net/sfc/base: import PHY statistics") Fixes: 8c7c723dfe7c ("net/sfc/base: import MAC statistics") Fixes: 5935cd8c47d3 ("net/sfc/base: import RSS support") Fixes: 9ee64bd404fc ("net/sfc/base: import loopback control") Fixes: dfb3b1ce15f6 ("net/sfc/base: import monitors access via MCDI") Fixes: d96a34d165b1 ("net/sfc/base: import NVRAM support") Fixes: 05fce2ce8451 ("net/sfc/base: import libefx licensing") Fixes: ba6afee9a81e ("net/sfc/base: add advanced function to extract FW version") Fixes: c7815c1d1f20 ("net/sfc/base: use proper MCDI command for encap filters") Fixes: 17551f6dffcc ("net/sfc/base: add API to control UDP tunnel ports") Fixes: eff9b666eae5 ("net/sfc/base: move RxDP config get to EF10 NIC code") Fixes: 4aab7f07a645 ("net/sfc/base: refactor EF10 get datapath capabilities") Fixes: 480a13044b8b ("net/sfc/base: support FW subvariant choice") Fixes: 6f60cc4a78b6 ("net/sfc/base: support equal stride super-buffer Rx mode") Fixes: 9a733758c046 ("net/sfc/base: support MARK and FLAG actions in filters") Cc: stable@dpdk.org Signed-off-by: Gautam Dawar <gdawar@solarflare.com> Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2018-09-10 09:33:22 +00:00
EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SENSOR_INFO_EXT_IN_LEN,
MC_CMD_SENSOR_INFO_OUT_LENMAX);
efx_rc_t rc;
uint32_t mask_copy;
efx_dword_t *maskp;
efx_qword_t *limit_info;
EFSYS_ASSERT(mask_part != NULL);
EFSYS_ASSERT(limits != NULL);
memset(limits, 0,
((sizeof (*mask_part) * 8) - 1) * sizeof (efx_mon_stat_limits_t));
req.emr_cmd = MC_CMD_SENSOR_INFO;
req.emr_in_buf = payload;
req.emr_in_length = MC_CMD_SENSOR_INFO_EXT_IN_LEN;
req.emr_out_buf = payload;
req.emr_out_length = MC_CMD_SENSOR_INFO_OUT_LENMAX;
MCDI_IN_SET_DWORD(req, SENSOR_INFO_EXT_IN_PAGE, page);
efx_mcdi_execute(enp, &req);
rc = req.emr_rc;
if (rc != 0)
goto fail1;
EFSYS_ASSERT(sizeof (*limit_info) ==
MC_CMD_SENSOR_INFO_ENTRY_TYPEDEF_LEN);
maskp = MCDI_OUT2(req, efx_dword_t, SENSOR_INFO_OUT_MASK);
limit_info = (efx_qword_t *)(maskp + 1);
*mask_part = maskp->ed_u32[0];
mask_copy = *mask_part;
/* Copy an entry for all but the highest bit set. */
while (mask_copy) {
if (mask_copy == (1U << MC_CMD_SENSOR_PAGE0_NEXT)) {
/* Only next page bit set. */
mask_copy = 0;
} else {
/* Clear lowest bit */
mask_copy = mask_copy & ~(mask_copy ^ (mask_copy - 1));
/* And copy out limit entry into buffer */
limits->emlv_warning_min = EFX_QWORD_FIELD(*limit_info,
MC_CMD_SENSOR_INFO_ENTRY_TYPEDEF_MIN1);
limits->emlv_warning_max = EFX_QWORD_FIELD(*limit_info,
MC_CMD_SENSOR_INFO_ENTRY_TYPEDEF_MAX1);
limits->emlv_fatal_min = EFX_QWORD_FIELD(*limit_info,
MC_CMD_SENSOR_INFO_ENTRY_TYPEDEF_MIN2);
limits->emlv_fatal_max = EFX_QWORD_FIELD(*limit_info,
MC_CMD_SENSOR_INFO_ENTRY_TYPEDEF_MAX2);
limits++;
limit_info++;
}
}
return (rc);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
mcdi_mon_stats_update(
__in efx_nic_t *enp,
__in efsys_mem_t *esmp,
__inout_ecount(EFX_MON_NSTATS) efx_mon_stat_value_t *values)
{
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
uint32_t size = encp->enc_mon_stat_dma_buf_size;
efx_rc_t rc;
if ((rc = efx_mcdi_read_sensors(enp, esmp, size)) != 0)
goto fail1;
EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, size);
mcdi_mon_decode_stats(enp,
encp->enc_mcdi_sensor_maskp,
encp->enc_mcdi_sensor_mask_size,
esmp, NULL, values);
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
static void
lowest_set_bit(
__in uint32_t input_mask,
__out uint32_t *lowest_bit_mask,
__out uint32_t *lowest_bit_num
)
{
uint32_t x;
uint32_t set_bit, bit_index;
x = (input_mask ^ (input_mask - 1));
set_bit = (x + 1) >> 1;
if (!set_bit)
set_bit = (1U << 31U);
bit_index = 0;
if (set_bit & 0xFFFF0000)
bit_index += 16;
if (set_bit & 0xFF00FF00)
bit_index += 8;
if (set_bit & 0xF0F0F0F0)
bit_index += 4;
if (set_bit & 0xCCCCCCCC)
bit_index += 2;
if (set_bit & 0xAAAAAAAA)
bit_index += 1;
*lowest_bit_mask = set_bit;
*lowest_bit_num = bit_index;
}
__checkReturn efx_rc_t
mcdi_mon_limits_update(
__in efx_nic_t *enp,
__inout_ecount(EFX_MON_NSTATS) efx_mon_stat_limits_t *values)
{
efx_rc_t rc;
uint32_t page;
uint32_t page_mask;
uint32_t limit_index;
efx_mon_stat_limits_t limits[sizeof (page_mask) * 8];
efx_mon_stat_t stat;
page = 0;
page--;
do {
page++;
rc = efx_mcdi_sensor_info_page(enp, page, &page_mask, limits);
if (rc != 0)
goto fail1;
limit_index = 0;
while (page_mask) {
uint32_t set_bit;
uint32_t page_index;
uint32_t mcdi_index;
if (page_mask == (1U << MC_CMD_SENSOR_PAGE0_NEXT))
break;
lowest_set_bit(page_mask, &set_bit, &page_index);
page_mask = page_mask & ~set_bit;
mcdi_index =
page_index + (sizeof (page_mask) * 8 * page);
/*
* This can fail if MCDI reports newer stats than the
* drivers understand, or the bit is the next page bit.
*
* Driver needs to be tolerant of this.
*/
if (!efx_mon_mcdi_to_efx_stat(mcdi_index, &stat))
continue;
values[stat] = limits[limit_index];
limit_index++;
}
} while (page_mask & (1U << MC_CMD_SENSOR_PAGE0_NEXT));
return (rc);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
mcdi_mon_cfg_build(
__in efx_nic_t *enp)
{
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
uint32_t npages;
efx_rc_t rc;
switch (enp->en_family) {
#if EFSYS_OPT_SIENA
case EFX_FAMILY_SIENA:
encp->enc_mon_type = EFX_MON_SFC90X0;
break;
#endif
#if EFSYS_OPT_HUNTINGTON
case EFX_FAMILY_HUNTINGTON:
encp->enc_mon_type = EFX_MON_SFC91X0;
break;
#endif
#if EFSYS_OPT_MEDFORD
case EFX_FAMILY_MEDFORD:
encp->enc_mon_type = EFX_MON_SFC92X0;
break;
#endif
#if EFSYS_OPT_MEDFORD2
case EFX_FAMILY_MEDFORD2:
encp->enc_mon_type = EFX_MON_SFC92X0;
break;
#endif
default:
rc = EINVAL;
goto fail1;
}
/* Get mc sensor mask size */
npages = 0;
if ((rc = efx_mcdi_sensor_info_npages(enp, &npages)) != 0)
goto fail2;
encp->enc_mon_stat_dma_buf_size = npages * EFX_MON_STATS_PAGE_SIZE;
encp->enc_mcdi_sensor_mask_size = npages * sizeof (uint32_t);
/* Allocate mc sensor mask */
EFSYS_KMEM_ALLOC(enp->en_esip,
encp->enc_mcdi_sensor_mask_size,
encp->enc_mcdi_sensor_maskp);
if (encp->enc_mcdi_sensor_maskp == NULL) {
rc = ENOMEM;
goto fail3;
}
/* Read mc sensor mask */
if ((rc = efx_mcdi_sensor_info(enp,
encp->enc_mcdi_sensor_maskp,
npages)) != 0)
goto fail4;
/* Build monitor statistics mask */
mcdi_mon_decode_stats(enp,
encp->enc_mcdi_sensor_maskp,
encp->enc_mcdi_sensor_mask_size,
NULL, encp->enc_mon_stat_mask, NULL);
return (0);
fail4:
EFSYS_PROBE(fail4);
EFSYS_KMEM_FREE(enp->en_esip,
encp->enc_mcdi_sensor_mask_size,
encp->enc_mcdi_sensor_maskp);
fail3:
EFSYS_PROBE(fail3);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
void
mcdi_mon_cfg_free(
__in efx_nic_t *enp)
{
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
if (encp->enc_mcdi_sensor_maskp != NULL) {
EFSYS_KMEM_FREE(enp->en_esip,
encp->enc_mcdi_sensor_mask_size,
encp->enc_mcdi_sensor_maskp);
}
}
#endif /* EFSYS_OPT_MON_STATS */
#endif /* EFSYS_OPT_MON_MCDI */