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path: root/drivers/net/ethernet/sfc/mcdi.c
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Diffstat (limited to 'drivers/net/ethernet/sfc/mcdi.c')
-rw-r--r--drivers/net/ethernet/sfc/mcdi.c115
1 files changed, 48 insertions, 67 deletions
diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c
index 81a425397468..619f63a66ce7 100644
--- a/drivers/net/ethernet/sfc/mcdi.c
+++ b/drivers/net/ethernet/sfc/mcdi.c
@@ -22,22 +22,22 @@
**************************************************************************
*/
-/* Software-defined structure to the shared-memory */
-#define CMD_NOTIFY_PORT0 0
-#define CMD_NOTIFY_PORT1 4
-#define CMD_PDU_PORT0 0x008
-#define CMD_PDU_PORT1 0x108
-#define REBOOT_FLAG_PORT0 0x3f8
-#define REBOOT_FLAG_PORT1 0x3fc
-
#define MCDI_RPC_TIMEOUT 10 /*seconds */
#define MCDI_PDU(efx) \
- (efx_port_num(efx) ? CMD_PDU_PORT1 : CMD_PDU_PORT0)
+ (efx_port_num(efx) ? MC_SMEM_P1_PDU_OFST : MC_SMEM_P0_PDU_OFST)
#define MCDI_DOORBELL(efx) \
- (efx_port_num(efx) ? CMD_NOTIFY_PORT1 : CMD_NOTIFY_PORT0)
-#define MCDI_REBOOT_FLAG(efx) \
- (efx_port_num(efx) ? REBOOT_FLAG_PORT1 : REBOOT_FLAG_PORT0)
+ (efx_port_num(efx) ? MC_SMEM_P1_DOORBELL_OFST : MC_SMEM_P0_DOORBELL_OFST)
+#define MCDI_STATUS(efx) \
+ (efx_port_num(efx) ? MC_SMEM_P1_STATUS_OFST : MC_SMEM_P0_STATUS_OFST)
+
+/* A reboot/assertion causes the MCDI status word to be set after the
+ * command word is set or a REBOOT event is sent. If we notice a reboot
+ * via these mechanisms then wait 10ms for the status word to be set. */
+#define MCDI_STATUS_DELAY_US 100
+#define MCDI_STATUS_DELAY_COUNT 100
+#define MCDI_STATUS_SLEEP_MS \
+ (MCDI_STATUS_DELAY_US * MCDI_STATUS_DELAY_COUNT / 1000)
#define SEQ_MASK \
EFX_MASK32(EFX_WIDTH(MCDI_HEADER_SEQ))
@@ -77,7 +77,7 @@ static void efx_mcdi_copyin(struct efx_nic *efx, unsigned cmd,
u32 xflags, seqno;
BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT);
- BUG_ON(inlen & 3 || inlen >= 0x100);
+ BUG_ON(inlen & 3 || inlen >= MC_SMEM_PDU_LEN);
seqno = mcdi->seqno & SEQ_MASK;
xflags = 0;
@@ -111,7 +111,7 @@ static void efx_mcdi_copyout(struct efx_nic *efx, u8 *outbuf, size_t outlen)
int i;
BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT);
- BUG_ON(outlen & 3 || outlen >= 0x100);
+ BUG_ON(outlen & 3 || outlen >= MC_SMEM_PDU_LEN);
for (i = 0; i < outlen; i += 4)
*((__le32 *)(outbuf + i)) = _efx_readd(efx, pdu + 4 + i);
@@ -210,7 +210,7 @@ out:
/* Test and clear MC-rebooted flag for this port/function */
int efx_mcdi_poll_reboot(struct efx_nic *efx)
{
- unsigned int addr = FR_CZ_MC_TREG_SMEM + MCDI_REBOOT_FLAG(efx);
+ unsigned int addr = FR_CZ_MC_TREG_SMEM + MCDI_STATUS(efx);
efx_dword_t reg;
uint32_t value;
@@ -384,6 +384,11 @@ int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd,
netif_dbg(efx, hw, efx->net_dev,
"MC command 0x%x inlen %d failed rc=%d\n",
cmd, (int)inlen, -rc);
+
+ if (rc == -EIO || rc == -EINTR) {
+ msleep(MCDI_STATUS_SLEEP_MS);
+ efx_mcdi_poll_reboot(efx);
+ }
}
efx_mcdi_release(mcdi);
@@ -465,10 +470,20 @@ static void efx_mcdi_ev_death(struct efx_nic *efx, int rc)
mcdi->resplen = 0;
++mcdi->credits;
}
- } else
+ } else {
+ int count;
+
/* Nobody was waiting for an MCDI request, so trigger a reset */
efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
+ /* Consume the status word since efx_mcdi_rpc_finish() won't */
+ for (count = 0; count < MCDI_STATUS_DELAY_COUNT; ++count) {
+ if (efx_mcdi_poll_reboot(efx))
+ break;
+ udelay(MCDI_STATUS_DELAY_US);
+ }
+ }
+
spin_unlock(&mcdi->iface_lock);
}
@@ -502,49 +517,6 @@ static void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev)
efx_link_status_changed(efx);
}
-static const char *sensor_names[] = {
- [MC_CMD_SENSOR_CONTROLLER_TEMP] = "Controller temp. sensor",
- [MC_CMD_SENSOR_PHY_COMMON_TEMP] = "PHY shared temp. sensor",
- [MC_CMD_SENSOR_CONTROLLER_COOLING] = "Controller cooling",
- [MC_CMD_SENSOR_PHY0_TEMP] = "PHY 0 temp. sensor",
- [MC_CMD_SENSOR_PHY0_COOLING] = "PHY 0 cooling",
- [MC_CMD_SENSOR_PHY1_TEMP] = "PHY 1 temp. sensor",
- [MC_CMD_SENSOR_PHY1_COOLING] = "PHY 1 cooling",
- [MC_CMD_SENSOR_IN_1V0] = "1.0V supply sensor",
- [MC_CMD_SENSOR_IN_1V2] = "1.2V supply sensor",
- [MC_CMD_SENSOR_IN_1V8] = "1.8V supply sensor",
- [MC_CMD_SENSOR_IN_2V5] = "2.5V supply sensor",
- [MC_CMD_SENSOR_IN_3V3] = "3.3V supply sensor",
- [MC_CMD_SENSOR_IN_12V0] = "12V supply sensor"
-};
-
-static const char *sensor_status_names[] = {
- [MC_CMD_SENSOR_STATE_OK] = "OK",
- [MC_CMD_SENSOR_STATE_WARNING] = "Warning",
- [MC_CMD_SENSOR_STATE_FATAL] = "Fatal",
- [MC_CMD_SENSOR_STATE_BROKEN] = "Device failure",
-};
-
-static void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev)
-{
- unsigned int monitor, state, value;
- const char *name, *state_txt;
- monitor = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_MONITOR);
- state = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_STATE);
- value = EFX_QWORD_FIELD(*ev, MCDI_EVENT_SENSOREVT_VALUE);
- /* Deal gracefully with the board having more drivers than we
- * know about, but do not expect new sensor states. */
- name = (monitor >= ARRAY_SIZE(sensor_names))
- ? "No sensor name available" :
- sensor_names[monitor];
- EFX_BUG_ON_PARANOID(state >= ARRAY_SIZE(sensor_status_names));
- state_txt = sensor_status_names[state];
-
- netif_err(efx, hw, efx->net_dev,
- "Sensor %d (%s) reports condition '%s' for raw value %d\n",
- monitor, name, state_txt, value);
-}
-
/* Called from falcon_process_eventq for MCDI events */
void efx_mcdi_process_event(struct efx_channel *channel,
efx_qword_t *event)
@@ -604,7 +576,7 @@ void efx_mcdi_process_event(struct efx_channel *channel,
void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len)
{
- u8 outbuf[ALIGN(MC_CMD_GET_VERSION_V1_OUT_LEN, 4)];
+ u8 outbuf[ALIGN(MC_CMD_GET_VERSION_OUT_LEN, 4)];
size_t outlength;
const __le16 *ver_words;
int rc;
@@ -616,7 +588,7 @@ void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len)
if (rc)
goto fail;
- if (outlength < MC_CMD_GET_VERSION_V1_OUT_LEN) {
+ if (outlength < MC_CMD_GET_VERSION_OUT_LEN) {
rc = -EIO;
goto fail;
}
@@ -663,9 +635,9 @@ fail:
}
int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
- u16 *fw_subtype_list)
+ u16 *fw_subtype_list, u32 *capabilities)
{
- uint8_t outbuf[MC_CMD_GET_BOARD_CFG_OUT_LEN];
+ uint8_t outbuf[MC_CMD_GET_BOARD_CFG_OUT_LENMIN];
size_t outlen;
int port_num = efx_port_num(efx);
int offset;
@@ -678,7 +650,7 @@ int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
if (rc)
goto fail;
- if (outlen < MC_CMD_GET_BOARD_CFG_OUT_LEN) {
+ if (outlen < MC_CMD_GET_BOARD_CFG_OUT_LENMIN) {
rc = -EIO;
goto fail;
}
@@ -691,7 +663,16 @@ int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
if (fw_subtype_list)
memcpy(fw_subtype_list,
outbuf + MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_OFST,
- MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_LEN);
+ MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MINNUM *
+ sizeof(fw_subtype_list[0]));
+ if (capabilities) {
+ if (port_num)
+ *capabilities = MCDI_DWORD(outbuf,
+ GET_BOARD_CFG_OUT_CAPABILITIES_PORT1);
+ else
+ *capabilities = MCDI_DWORD(outbuf,
+ GET_BOARD_CFG_OUT_CAPABILITIES_PORT0);
+ }
return 0;
@@ -779,7 +760,7 @@ int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
*size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_SIZE);
*erase_size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_ERASESIZE);
*protected_out = !!(MCDI_DWORD(outbuf, NVRAM_INFO_OUT_FLAGS) &
- (1 << MC_CMD_NVRAM_PROTECTED_LBN));
+ (1 << MC_CMD_NVRAM_INFO_OUT_PROTECTED_LBN));
return 0;
fail:
@@ -1060,7 +1041,7 @@ void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode)
int efx_mcdi_reset_port(struct efx_nic *efx)
{
- int rc = efx_mcdi_rpc(efx, MC_CMD_PORT_RESET, NULL, 0, NULL, 0, NULL);
+ int rc = efx_mcdi_rpc(efx, MC_CMD_ENTITY_RESET, NULL, 0, NULL, 0, NULL);
if (rc)
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
__func__, rc);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-22 10:37:04 +0300