Author: np
Date: Tue Mar 8 09:34:56 2016
New Revision: 296494
URL: https://svnweb.freebsd.org/changeset/base/296494
Log:
cxgbe(4): Many new functions in the shared code, unused at this time.
Obtained from: Chelsio Communications
Modified:
head/sys/dev/cxgbe/common/common.h
head/sys/dev/cxgbe/common/t4_hw.c
Modified: head/sys/dev/cxgbe/common/common.h
==============================================================================
--- head/sys/dev/cxgbe/common/common.h Tue Mar 8 08:59:34 2016
(r296493)
+++ head/sys/dev/cxgbe/common/common.h Tue Mar 8 09:34:56 2016
(r296494)
@@ -338,6 +338,18 @@ struct adapter_params {
#define CHELSIO_T5 0x5
#define CHELSIO_T6 0x6
+/*
+ * State needed to monitor the forward progress of SGE Ingress DMA activities
+ * and possible hangs.
+ */
+struct sge_idma_monitor_state {
+ unsigned int idma_1s_thresh; /* 1s threshold in Core Clock ticks */
+ unsigned int idma_stalled[2]; /* synthesized stalled timers in HZ */
+ unsigned int idma_state[2]; /* IDMA Hang detect state */
+ unsigned int idma_qid[2]; /* IDMA Hung Ingress Queue ID */
+ unsigned int idma_warn[2]; /* time to warning in HZ */
+};
+
struct trace_params {
u32 data[TRACE_LEN / 4];
u32 mask[TRACE_LEN / 4];
@@ -502,6 +514,8 @@ int t4_read_flash(struct adapter *adapte
int t4_write_flash(struct adapter *adapter, unsigned int addr,
unsigned int n, const u8 *data, int byte_oriented);
int t4_load_fw(struct adapter *adapter, const u8 *fw_data, unsigned int size);
+int t4_fwcache(struct adapter *adap, enum fw_params_param_dev_fwcache op);
+int t5_fw_init_extern_mem(struct adapter *adap);
int t4_load_bootcfg(struct adapter *adapter, const u8 *cfg_data, unsigned int
size);
int t4_load_boot(struct adapter *adap, u8 *boot_data,
unsigned int boot_addr, unsigned int size);
@@ -510,9 +524,12 @@ int t4_flash_cfg_addr(struct adapter *ad
int t4_load_cfg(struct adapter *adapter, const u8 *cfg_data, unsigned int
size);
int t4_get_fw_version(struct adapter *adapter, u32 *vers);
int t4_get_tp_version(struct adapter *adapter, u32 *vers);
+int t4_get_exprom_version(struct adapter *adapter, u32 *vers);
int t4_check_fw_version(struct adapter *adapter);
int t4_init_hw(struct adapter *adapter, u32 fw_params);
int t4_prep_adapter(struct adapter *adapter, u8 *buf);
+int t4_shutdown_adapter(struct adapter *adapter);
+int t4_init_devlog_params(struct adapter *adapter, int fw_attach);
int t4_init_sge_params(struct adapter *adapter);
int t4_init_tp_params(struct adapter *adap);
int t4_filter_field_shift(const struct adapter *adap, int filter_sel);
@@ -562,11 +579,18 @@ void t4_cim_read_pif_la(struct adapter *
unsigned int *pif_req_wrptr, unsigned int *pif_rsp_wrptr);
void t4_cim_read_ma_la(struct adapter *adap, u32 *ma_req, u32 *ma_rsp);
int t4_get_flash_params(struct adapter *adapter);
+
+u32 t4_read_pcie_cfg4(struct adapter *adap, int reg, int drv_fw_attach);
int t4_mc_read(struct adapter *adap, int idx, u32 addr,
__be32 *data, u64 *parity);
int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64
*parity);
int t4_mem_read(struct adapter *adap, int mtype, u32 addr, u32 size,
__be32 *data);
+void t4_idma_monitor_init(struct adapter *adapter,
+ struct sge_idma_monitor_state *idma);
+void t4_idma_monitor(struct adapter *adapter,
+ struct sge_idma_monitor_state *idma,
+ int hz, int ticks);
unsigned int t4_get_regs_len(struct adapter *adapter);
void t4_get_regs(struct adapter *adap, u8 *buf, size_t buf_size);
@@ -678,6 +702,9 @@ int t4_i2c_wr(struct adapter *adap, unsi
int port, unsigned int devid,
unsigned int offset, unsigned int len,
u8 *buf);
+int t4_iq_stop(struct adapter *adap, unsigned int mbox, unsigned int pf,
+ unsigned int vf, unsigned int iqtype, unsigned int iqid,
+ unsigned int fl0id, unsigned int fl1id);
int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
unsigned int vf, unsigned int iqtype, unsigned int iqid,
unsigned int fl0id, unsigned int fl1id);
@@ -701,4 +728,10 @@ int t4_sched_params(struct adapter *adap
int rateunit, int ratemode, int channel, int cl,
int minrate, int maxrate, int weight, int pktsize,
int sleep_ok);
+int t4_config_watchdog(struct adapter *adapter, unsigned int mbox,
+ unsigned int pf, unsigned int vf,
+ unsigned int timeout, unsigned int action);
+int t4_get_devlog_level(struct adapter *adapter, unsigned int *level);
+int t4_set_devlog_level(struct adapter *adapter, unsigned int level);
+void t4_sge_decode_idma_state(struct adapter *adapter, int state);
#endif /* __CHELSIO_COMMON_H */
Modified: head/sys/dev/cxgbe/common/t4_hw.c
==============================================================================
--- head/sys/dev/cxgbe/common/t4_hw.c Tue Mar 8 08:59:34 2016
(r296493)
+++ head/sys/dev/cxgbe/common/t4_hw.c Tue Mar 8 09:34:56 2016
(r296494)
@@ -636,6 +636,56 @@ int t4_mem_read(struct adapter *adap, in
return 0;
}
+/*
+ * Return the specified PCI-E Configuration Space register from our Physical
+ * Function. We try first via a Firmware LDST Command (if fw_attach != 0)
+ * since we prefer to let the firmware own all of these registers, but if that
+ * fails we go for it directly ourselves.
+ */
+u32 t4_read_pcie_cfg4(struct adapter *adap, int reg, int drv_fw_attach)
+{
+
+ /*
+ * If fw_attach != 0, construct and send the Firmware LDST Command to
+ * retrieve the specified PCI-E Configuration Space register.
+ */
+ if (drv_fw_attach != 0) {
+ struct fw_ldst_cmd ldst_cmd;
+ int ret;
+
+ memset(&ldst_cmd, 0, sizeof(ldst_cmd));
+ ldst_cmd.op_to_addrspace =
+ cpu_to_be32(V_FW_CMD_OP(FW_LDST_CMD) |
+ F_FW_CMD_REQUEST |
+ F_FW_CMD_READ |
+
V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FUNC_PCIE));
+ ldst_cmd.cycles_to_len16 = cpu_to_be32(FW_LEN16(ldst_cmd));
+ ldst_cmd.u.pcie.select_naccess = V_FW_LDST_CMD_NACCESS(1);
+ ldst_cmd.u.pcie.ctrl_to_fn =
+ (F_FW_LDST_CMD_LC | V_FW_LDST_CMD_FN(adap->pf));
+ ldst_cmd.u.pcie.r = reg;
+
+ /*
+ * If the LDST Command succeeds, return the result, otherwise
+ * fall through to reading it directly ourselves ...
+ */
+ ret = t4_wr_mbox(adap, adap->mbox, &ldst_cmd, sizeof(ldst_cmd),
+ &ldst_cmd);
+ if (ret == 0)
+ return be32_to_cpu(ldst_cmd.u.pcie.data[0]);
+
+ CH_WARN(adap, "Firmware failed to return "
+ "Configuration Space register %d, err = %d\n",
+ reg, -ret);
+ }
+
+ /*
+ * Read the desired Configuration Space register via the PCI-E
+ * Backdoor mechanism.
+ */
+ return t4_hw_pci_read_cfg4(adap, reg);
+}
+
/**
* t4_get_regs_len - return the size of the chips register set
* @adapter: the adapter
@@ -3116,6 +3166,43 @@ int t4_get_tp_version(struct adapter *ad
}
/**
+ * t4_get_exprom_version - return the Expansion ROM version (if any)
+ * @adapter: the adapter
+ * @vers: where to place the version
+ *
+ * Reads the Expansion ROM header from FLASH and returns the version
+ * number (if present) through the @vers return value pointer. We return
+ * this in the Firmware Version Format since it's convenient. Return
+ * 0 on success, -ENOENT if no Expansion ROM is present.
+ */
+int t4_get_exprom_version(struct adapter *adap, u32 *vers)
+{
+ struct exprom_header {
+ unsigned char hdr_arr[16]; /* must start with 0x55aa */
+ unsigned char hdr_ver[4]; /* Expansion ROM version */
+ } *hdr;
+ u32 exprom_header_buf[DIV_ROUND_UP(sizeof(struct exprom_header),
+ sizeof(u32))];
+ int ret;
+
+ ret = t4_read_flash(adap, FLASH_EXP_ROM_START,
+ ARRAY_SIZE(exprom_header_buf), exprom_header_buf,
+ 0);
+ if (ret)
+ return ret;
+
+ hdr = (struct exprom_header *)exprom_header_buf;
+ if (hdr->hdr_arr[0] != 0x55 || hdr->hdr_arr[1] != 0xaa)
+ return -ENOENT;
+
+ *vers = (V_FW_HDR_FW_VER_MAJOR(hdr->hdr_ver[0]) |
+ V_FW_HDR_FW_VER_MINOR(hdr->hdr_ver[1]) |
+ V_FW_HDR_FW_VER_MICRO(hdr->hdr_ver[2]) |
+ V_FW_HDR_FW_VER_BUILD(hdr->hdr_ver[3]));
+ return 0;
+}
+
+/**
* t4_check_fw_version - check if the FW is compatible with this driver
* @adapter: the adapter
*
@@ -3319,6 +3406,30 @@ out:
}
/**
+ * t4_fwcache - firmware cache operation
+ * @adap: the adapter
+ * @op : the operation (flush or flush and invalidate)
+ */
+int t4_fwcache(struct adapter *adap, enum fw_params_param_dev_fwcache op)
+{
+ struct fw_params_cmd c;
+
+ memset(&c, 0, sizeof(c));
+ c.op_to_vfn =
+ cpu_to_be32(V_FW_CMD_OP(FW_PARAMS_CMD) |
+ F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
+ V_FW_PARAMS_CMD_PFN(adap->pf) |
+ V_FW_PARAMS_CMD_VFN(0));
+ c.retval_len16 = cpu_to_be32(FW_LEN16(c));
+ c.param[0].mnem =
+ cpu_to_be32(V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+ V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_FWCACHE));
+ c.param[0].val = (__force __be32)op;
+
+ return t4_wr_mbox(adap, adap->mbox, &c, sizeof(c), NULL);
+}
+
+/**
* t4_read_cimq_cfg - read CIM queue configuration
* @adap: the adapter
* @base: holds the queue base addresses in bytes
@@ -6251,6 +6362,163 @@ int t4_mdio_wr(struct adapter *adap, uns
}
/**
+ *
+ * t4_sge_decode_idma_state - decode the idma state
+ * @adap: the adapter
+ * @state: the state idma is stuck in
+ */
+void t4_sge_decode_idma_state(struct adapter *adapter, int state)
+{
+ static const char * const t4_decode[] = {
+ "IDMA_IDLE",
+ "IDMA_PUSH_MORE_CPL_FIFO",
+ "IDMA_PUSH_CPL_MSG_HEADER_TO_FIFO",
+ "Not used",
+ "IDMA_PHYSADDR_SEND_PCIEHDR",
+ "IDMA_PHYSADDR_SEND_PAYLOAD_FIRST",
+ "IDMA_PHYSADDR_SEND_PAYLOAD",
+ "IDMA_SEND_FIFO_TO_IMSG",
+ "IDMA_FL_REQ_DATA_FL_PREP",
+ "IDMA_FL_REQ_DATA_FL",
+ "IDMA_FL_DROP",
+ "IDMA_FL_H_REQ_HEADER_FL",
+ "IDMA_FL_H_SEND_PCIEHDR",
+ "IDMA_FL_H_PUSH_CPL_FIFO",
+ "IDMA_FL_H_SEND_CPL",
+ "IDMA_FL_H_SEND_IP_HDR_FIRST",
+ "IDMA_FL_H_SEND_IP_HDR",
+ "IDMA_FL_H_REQ_NEXT_HEADER_FL",
+ "IDMA_FL_H_SEND_NEXT_PCIEHDR",
+ "IDMA_FL_H_SEND_IP_HDR_PADDING",
+ "IDMA_FL_D_SEND_PCIEHDR",
+ "IDMA_FL_D_SEND_CPL_AND_IP_HDR",
+ "IDMA_FL_D_REQ_NEXT_DATA_FL",
+ "IDMA_FL_SEND_PCIEHDR",
+ "IDMA_FL_PUSH_CPL_FIFO",
+ "IDMA_FL_SEND_CPL",
+ "IDMA_FL_SEND_PAYLOAD_FIRST",
+ "IDMA_FL_SEND_PAYLOAD",
+ "IDMA_FL_REQ_NEXT_DATA_FL",
+ "IDMA_FL_SEND_NEXT_PCIEHDR",
+ "IDMA_FL_SEND_PADDING",
+ "IDMA_FL_SEND_COMPLETION_TO_IMSG",
+ "IDMA_FL_SEND_FIFO_TO_IMSG",
+ "IDMA_FL_REQ_DATAFL_DONE",
+ "IDMA_FL_REQ_HEADERFL_DONE",
+ };
+ static const char * const t5_decode[] = {
+ "IDMA_IDLE",
+ "IDMA_ALMOST_IDLE",
+ "IDMA_PUSH_MORE_CPL_FIFO",
+ "IDMA_PUSH_CPL_MSG_HEADER_TO_FIFO",
+ "IDMA_SGEFLRFLUSH_SEND_PCIEHDR",
+ "IDMA_PHYSADDR_SEND_PCIEHDR",
+ "IDMA_PHYSADDR_SEND_PAYLOAD_FIRST",
+ "IDMA_PHYSADDR_SEND_PAYLOAD",
+ "IDMA_SEND_FIFO_TO_IMSG",
+ "IDMA_FL_REQ_DATA_FL",
+ "IDMA_FL_DROP",
+ "IDMA_FL_DROP_SEND_INC",
+ "IDMA_FL_H_REQ_HEADER_FL",
+ "IDMA_FL_H_SEND_PCIEHDR",
+ "IDMA_FL_H_PUSH_CPL_FIFO",
+ "IDMA_FL_H_SEND_CPL",
+ "IDMA_FL_H_SEND_IP_HDR_FIRST",
+ "IDMA_FL_H_SEND_IP_HDR",
+ "IDMA_FL_H_REQ_NEXT_HEADER_FL",
+ "IDMA_FL_H_SEND_NEXT_PCIEHDR",
+ "IDMA_FL_H_SEND_IP_HDR_PADDING",
+ "IDMA_FL_D_SEND_PCIEHDR",
+ "IDMA_FL_D_SEND_CPL_AND_IP_HDR",
+ "IDMA_FL_D_REQ_NEXT_DATA_FL",
+ "IDMA_FL_SEND_PCIEHDR",
+ "IDMA_FL_PUSH_CPL_FIFO",
+ "IDMA_FL_SEND_CPL",
+ "IDMA_FL_SEND_PAYLOAD_FIRST",
+ "IDMA_FL_SEND_PAYLOAD",
+ "IDMA_FL_REQ_NEXT_DATA_FL",
+ "IDMA_FL_SEND_NEXT_PCIEHDR",
+ "IDMA_FL_SEND_PADDING",
+ "IDMA_FL_SEND_COMPLETION_TO_IMSG",
+ };
+ static const char * const t6_decode[] = {
+ "IDMA_IDLE",
+ "IDMA_PUSH_MORE_CPL_FIFO",
+ "IDMA_PUSH_CPL_MSG_HEADER_TO_FIFO",
+ "IDMA_SGEFLRFLUSH_SEND_PCIEHDR",
+ "IDMA_PHYSADDR_SEND_PCIEHDR",
+ "IDMA_PHYSADDR_SEND_PAYLOAD_FIRST",
+ "IDMA_PHYSADDR_SEND_PAYLOAD",
+ "IDMA_FL_REQ_DATA_FL",
+ "IDMA_FL_DROP",
+ "IDMA_FL_DROP_SEND_INC",
+ "IDMA_FL_H_REQ_HEADER_FL",
+ "IDMA_FL_H_SEND_PCIEHDR",
+ "IDMA_FL_H_PUSH_CPL_FIFO",
+ "IDMA_FL_H_SEND_CPL",
+ "IDMA_FL_H_SEND_IP_HDR_FIRST",
+ "IDMA_FL_H_SEND_IP_HDR",
+ "IDMA_FL_H_REQ_NEXT_HEADER_FL",
+ "IDMA_FL_H_SEND_NEXT_PCIEHDR",
+ "IDMA_FL_H_SEND_IP_HDR_PADDING",
+ "IDMA_FL_D_SEND_PCIEHDR",
+ "IDMA_FL_D_SEND_CPL_AND_IP_HDR",
+ "IDMA_FL_D_REQ_NEXT_DATA_FL",
+ "IDMA_FL_SEND_PCIEHDR",
+ "IDMA_FL_PUSH_CPL_FIFO",
+ "IDMA_FL_SEND_CPL",
+ "IDMA_FL_SEND_PAYLOAD_FIRST",
+ "IDMA_FL_SEND_PAYLOAD",
+ "IDMA_FL_REQ_NEXT_DATA_FL",
+ "IDMA_FL_SEND_NEXT_PCIEHDR",
+ "IDMA_FL_SEND_PADDING",
+ "IDMA_FL_SEND_COMPLETION_TO_IMSG",
+ };
+ static const u32 sge_regs[] = {
+ A_SGE_DEBUG_DATA_LOW_INDEX_2,
+ A_SGE_DEBUG_DATA_LOW_INDEX_3,
+ A_SGE_DEBUG_DATA_HIGH_INDEX_10,
+ };
+ const char * const *sge_idma_decode;
+ int sge_idma_decode_nstates;
+ int i;
+ unsigned int chip_version = chip_id(adapter);
+
+ /* Select the right set of decode strings to dump depending on the
+ * adapter chip type.
+ */
+ switch (chip_version) {
+ case CHELSIO_T4:
+ sge_idma_decode = (const char * const *)t4_decode;
+ sge_idma_decode_nstates = ARRAY_SIZE(t4_decode);
+ break;
+
+ case CHELSIO_T5:
+ sge_idma_decode = (const char * const *)t5_decode;
+ sge_idma_decode_nstates = ARRAY_SIZE(t5_decode);
+ break;
+
+ case CHELSIO_T6:
+ sge_idma_decode = (const char * const *)t6_decode;
+ sge_idma_decode_nstates = ARRAY_SIZE(t6_decode);
+ break;
+
+ default:
+ CH_ERR(adapter, "Unsupported chip version %d\n", chip_version);
+ return;
+ }
+
+ if (state < sge_idma_decode_nstates)
+ CH_WARN(adapter, "idma state %s\n", sge_idma_decode[state]);
+ else
+ CH_WARN(adapter, "idma state %d unknown\n", state);
+
+ for (i = 0; i < ARRAY_SIZE(sge_regs); i++)
+ CH_WARN(adapter, "SGE register %#x value %#x\n",
+ sge_regs[i], t4_read_reg(adapter, sge_regs[i]));
+}
+
+/**
* t4_i2c_rd - read I2C data from adapter
* @adap: the adapter
* @port: Port number if per-port device; <0 if not
@@ -7327,6 +7595,39 @@ int t4_identify_port(struct adapter *ada
}
/**
+ * t4_iq_stop - stop an ingress queue and its FLs
+ * @adap: the adapter
+ * @mbox: mailbox to use for the FW command
+ * @pf: the PF owning the queues
+ * @vf: the VF owning the queues
+ * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
+ * @iqid: ingress queue id
+ * @fl0id: FL0 queue id or 0xffff if no attached FL0
+ * @fl1id: FL1 queue id or 0xffff if no attached FL1
+ *
+ * Stops an ingress queue and its associated FLs, if any. This causes
+ * any current or future data/messages destined for these queues to be
+ * tossed.
+ */
+int t4_iq_stop(struct adapter *adap, unsigned int mbox, unsigned int pf,
+ unsigned int vf, unsigned int iqtype, unsigned int iqid,
+ unsigned int fl0id, unsigned int fl1id)
+{
+ struct fw_iq_cmd c;
+
+ memset(&c, 0, sizeof(c));
+ c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_IQ_CMD) | F_FW_CMD_REQUEST |
+ F_FW_CMD_EXEC | V_FW_IQ_CMD_PFN(pf) |
+ V_FW_IQ_CMD_VFN(vf));
+ c.alloc_to_len16 = cpu_to_be32(F_FW_IQ_CMD_IQSTOP | FW_LEN16(c));
+ c.type_to_iqandstindex = cpu_to_be32(V_FW_IQ_CMD_TYPE(iqtype));
+ c.iqid = cpu_to_be16(iqid);
+ c.fl0id = cpu_to_be16(fl0id);
+ c.fl1id = cpu_to_be16(fl1id);
+ return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
+}
+
+/**
* t4_iq_free - free an ingress queue and its FLs
* @adap: the adapter
* @mbox: mailbox to use for the FW command
@@ -7761,6 +8062,106 @@ int t4_prep_adapter(struct adapter *adap
}
/**
+ * t4_shutdown_adapter - shut down adapter, host & wire
+ * @adapter: the adapter
+ *
+ * Perform an emergency shutdown of the adapter and stop it from
+ * continuing any further communication on the ports or DMA to the
+ * host. This is typically used when the adapter and/or firmware
+ * have crashed and we want to prevent any further accidental
+ * communication with the rest of the world. This will also force
+ * the port Link Status to go down -- if register writes work --
+ * which should help our peers figure out that we're down.
+ */
+int t4_shutdown_adapter(struct adapter *adapter)
+{
+ int port;
+
+ t4_intr_disable(adapter);
+ t4_write_reg(adapter, A_DBG_GPIO_EN, 0);
+ for_each_port(adapter, port) {
+ u32 a_port_cfg = PORT_REG(port,
+ is_t4(adapter)
+ ? A_XGMAC_PORT_CFG
+ : A_MAC_PORT_CFG);
+
+ t4_write_reg(adapter, a_port_cfg,
+ t4_read_reg(adapter, a_port_cfg)
+ & ~V_SIGNAL_DET(1));
+ }
+ t4_set_reg_field(adapter, A_SGE_CONTROL, F_GLOBALENABLE, 0);
+
+ return 0;
+}
+
+/**
+ * t4_init_devlog_params - initialize adapter->params.devlog
+ * @adap: the adapter
+ * @fw_attach: whether we can talk to the firmware
+ *
+ * Initialize various fields of the adapter's Firmware Device Log
+ * Parameters structure.
+ */
+int t4_init_devlog_params(struct adapter *adap, int fw_attach)
+{
+ struct devlog_params *dparams = &adap->params.devlog;
+ u32 pf_dparams;
+ unsigned int devlog_meminfo;
+ struct fw_devlog_cmd devlog_cmd;
+ int ret;
+
+ /* If we're dealing with newer firmware, the Device Log Paramerters
+ * are stored in a designated register which allows us to access the
+ * Device Log even if we can't talk to the firmware.
+ */
+ pf_dparams =
+ t4_read_reg(adap, PCIE_FW_REG(A_PCIE_FW_PF, PCIE_FW_PF_DEVLOG));
+ if (pf_dparams) {
+ unsigned int nentries, nentries128;
+
+ dparams->memtype = G_PCIE_FW_PF_DEVLOG_MEMTYPE(pf_dparams);
+ dparams->start = G_PCIE_FW_PF_DEVLOG_ADDR16(pf_dparams) << 4;
+
+ nentries128 = G_PCIE_FW_PF_DEVLOG_NENTRIES128(pf_dparams);
+ nentries = (nentries128 + 1) * 128;
+ dparams->size = nentries * sizeof(struct fw_devlog_e);
+
+ return 0;
+ }
+
+ /*
+ * For any failing returns ...
+ */
+ memset(dparams, 0, sizeof *dparams);
+
+ /*
+ * If we can't talk to the firmware, there's really nothing we can do
+ * at this point.
+ */
+ if (!fw_attach)
+ return -ENXIO;
+
+ /* Otherwise, ask the firmware for it's Device Log Parameters.
+ */
+ memset(&devlog_cmd, 0, sizeof devlog_cmd);
+ devlog_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_DEVLOG_CMD) |
+ F_FW_CMD_REQUEST | F_FW_CMD_READ);
+ devlog_cmd.retval_len16 = cpu_to_be32(FW_LEN16(devlog_cmd));
+ ret = t4_wr_mbox(adap, adap->mbox, &devlog_cmd, sizeof(devlog_cmd),
+ &devlog_cmd);
+ if (ret)
+ return ret;
+
+ devlog_meminfo =
+ be32_to_cpu(devlog_cmd.memtype_devlog_memaddr16_devlog);
+ dparams->memtype = G_FW_DEVLOG_CMD_MEMTYPE_DEVLOG(devlog_meminfo);
+ dparams->start = G_FW_DEVLOG_CMD_MEMADDR16_DEVLOG(devlog_meminfo) << 4;
+ dparams->size = be32_to_cpu(devlog_cmd.memsize_devlog);
+
+ return 0;
+}
+
+/**
* t4_init_sge_params - initialize adap->params.sge
* @adapter: the adapter
*
@@ -8020,6 +8421,156 @@ int t4_port_init(struct adapter *adap, i
return 0;
}
+/*
+ * SGE Hung Ingress DMA Warning Threshold time and Warning Repeat Rate (in
+ * seconds). If we find one of the SGE Ingress DMA State Machines in the same
+ * state for more than the Warning Threshold then we'll issue a warning about
+ * a potential hang. We'll repeat the warning as the SGE Ingress DMA Channel
+ * appears to be hung every Warning Repeat second till the situation clears.
+ * If the situation clears, we'll note that as well.
+ */
+#define SGE_IDMA_WARN_THRESH 1
+#define SGE_IDMA_WARN_REPEAT 300
+
+/**
+ * t4_idma_monitor_init - initialize SGE Ingress DMA Monitor
+ * @adapter: the adapter
+ * @idma: the adapter IDMA Monitor state
+ *
+ * Initialize the state of an SGE Ingress DMA Monitor.
+ */
+void t4_idma_monitor_init(struct adapter *adapter,
+ struct sge_idma_monitor_state *idma)
+{
+ /* Initialize the state variables for detecting an SGE Ingress DMA
+ * hang. The SGE has internal counters which count up on each clock
+ * tick whenever the SGE finds its Ingress DMA State Engines in the
+ * same state they were on the previous clock tick. The clock used is
+ * the Core Clock so we have a limit on the maximum "time" they can
+ * record; typically a very small number of seconds. For instance,
+ * with a 600MHz Core Clock, we can only count up to a bit more than
+ * 7s. So we'll synthesize a larger counter in order to not run the
+ * risk of having the "timers" overflow and give us the flexibility to
+ * maintain a Hung SGE State Machine of our own which operates across
+ * a longer time frame.
+ */
+ idma->idma_1s_thresh = core_ticks_per_usec(adapter) * 1000000; /* 1s */
+ idma->idma_stalled[0] = idma->idma_stalled[1] = 0;
+}
+
+/**
+ * t4_idma_monitor - monitor SGE Ingress DMA state
+ * @adapter: the adapter
+ * @idma: the adapter IDMA Monitor state
+ * @hz: number of ticks/second
+ * @ticks: number of ticks since the last IDMA Monitor call
+ */
+void t4_idma_monitor(struct adapter *adapter,
+ struct sge_idma_monitor_state *idma,
+ int hz, int ticks)
+{
+ int i, idma_same_state_cnt[2];
+
+ /* Read the SGE Debug Ingress DMA Same State Count registers. These
+ * are counters inside the SGE which count up on each clock when the
+ * SGE finds its Ingress DMA State Engines in the same states they
+ * were in the previous clock. The counters will peg out at
+ * 0xffffffff without wrapping around so once they pass the 1s
+ * threshold they'll stay above that till the IDMA state changes.
+ */
+ t4_write_reg(adapter, A_SGE_DEBUG_INDEX, 13);
+ idma_same_state_cnt[0] = t4_read_reg(adapter, A_SGE_DEBUG_DATA_HIGH);
+ idma_same_state_cnt[1] = t4_read_reg(adapter, A_SGE_DEBUG_DATA_LOW);
+
+ for (i = 0; i < 2; i++) {
+ u32 debug0, debug11;
+
+ /* If the Ingress DMA Same State Counter ("timer") is less
+ * than 1s, then we can reset our synthesized Stall Timer and
+ * continue. If we have previously emitted warnings about a
+ * potential stalled Ingress Queue, issue a note indicating
+ * that the Ingress Queue has resumed forward progress.
+ */
+ if (idma_same_state_cnt[i] < idma->idma_1s_thresh) {
+ if (idma->idma_stalled[i] >= SGE_IDMA_WARN_THRESH*hz)
+ CH_WARN(adapter, "SGE idma%d, queue %u, "
+ "resumed after %d seconds\n",
+ i, idma->idma_qid[i],
+ idma->idma_stalled[i]/hz);
+ idma->idma_stalled[i] = 0;
+ continue;
+ }
+
+ /* Synthesize an SGE Ingress DMA Same State Timer in the Hz
+ * domain. The first time we get here it'll be because we
+ * passed the 1s Threshold; each additional time it'll be
+ * because the RX Timer Callback is being fired on its regular
+ * schedule.
+ *
+ * If the stall is below our Potential Hung Ingress Queue
+ * Warning Threshold, continue.
+ */
+ if (idma->idma_stalled[i] == 0) {
+ idma->idma_stalled[i] = hz;
+ idma->idma_warn[i] = 0;
+ } else {
+ idma->idma_stalled[i] += ticks;
+ idma->idma_warn[i] -= ticks;
+ }
+
+ if (idma->idma_stalled[i] < SGE_IDMA_WARN_THRESH*hz)
+ continue;
+
+ /* We'll issue a warning every SGE_IDMA_WARN_REPEAT seconds.
+ */
+ if (idma->idma_warn[i] > 0)
+ continue;
+ idma->idma_warn[i] = SGE_IDMA_WARN_REPEAT*hz;
+
+ /* Read and save the SGE IDMA State and Queue ID information.
+ * We do this every time in case it changes across time ...
+ * can't be too careful ...
+ */
+ t4_write_reg(adapter, A_SGE_DEBUG_INDEX, 0);
+ debug0 = t4_read_reg(adapter, A_SGE_DEBUG_DATA_LOW);
+ idma->idma_state[i] = (debug0 >> (i * 9)) & 0x3f;
+
+ t4_write_reg(adapter, A_SGE_DEBUG_INDEX, 11);
+ debug11 = t4_read_reg(adapter, A_SGE_DEBUG_DATA_LOW);
+ idma->idma_qid[i] = (debug11 >> (i * 16)) & 0xffff;
+
+ CH_WARN(adapter, "SGE idma%u, queue %u, potentially stuck in "
+ " state %u for %d seconds (debug0=%#x, debug11=%#x)\n",
+ i, idma->idma_qid[i], idma->idma_state[i],
+ idma->idma_stalled[i]/hz,
+ debug0, debug11);
+ t4_sge_decode_idma_state(adapter, idma->idma_state[i]);
+ }
+}
+
+/**
+ * t5_fw_init_extern_mem - initialize the external memory
+ * @adap: the adapter
+ *
+ * Initializes the external memory on T5.
+ */
+int t5_fw_init_extern_mem(struct adapter *adap)
+{
+ u32 params[1], val[1];
+ int ret;
+
+ if (!is_t5(adap))
+ return 0;
+
+ val[0] = 0xff; /* Initialize all MCs */
+ params[0] = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+ V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_MCINIT));
+ ret = t4_set_params_timeout(adap, adap->mbox, adap->pf, 0, 1, params,
val,
+ FW_CMD_MAX_TIMEOUT);
+
+ return ret;
+}
+
/* BIOS boot headers */
typedef struct pci_expansion_rom_header {
u8 signature[2]; /* ROM Signature. Should be 0xaa55 */
@@ -8454,3 +9005,78 @@ int t4_sched_params(struct adapter *adap
return t4_wr_mbox_meat(adapter,adapter->mbox, &cmd, sizeof(cmd),
NULL, sleep_ok);
}
+
+/*
+ * t4_config_watchdog - configure (enable/disable) a watchdog timer
+ * @adapter: the adapter
+ * @mbox: mailbox to use for the FW command
+ * @pf: the PF owning the queue
+ * @vf: the VF owning the queue
+ * @timeout: watchdog timeout in ms
+ * @action: watchdog timer / action
+ *
+ * There are separate watchdog timers for each possible watchdog
+ * action. Configure one of the watchdog timers by setting a non-zero
+ * timeout. Disable a watchdog timer by using a timeout of zero.
+ */
+int t4_config_watchdog(struct adapter *adapter, unsigned int mbox,
+ unsigned int pf, unsigned int vf,
+ unsigned int timeout, unsigned int action)
+{
+ struct fw_watchdog_cmd wdog;
+ unsigned int ticks;
+
+ /*
+ * The watchdog command expects a timeout in units of 10ms so we need
+ * to convert it here (via rounding) and force a minimum of one 10ms
+ * "tick" if the timeout is non-zero but the convertion results in 0
+ * ticks.
+ */
+ ticks = (timeout + 5)/10;
+ if (timeout && !ticks)
+ ticks = 1;
+
+ memset(&wdog, 0, sizeof wdog);
+ wdog.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_WATCHDOG_CMD) |
+ F_FW_CMD_REQUEST |
+ F_FW_CMD_WRITE |
+ V_FW_PARAMS_CMD_PFN(pf) |
+ V_FW_PARAMS_CMD_VFN(vf));
+ wdog.retval_len16 = cpu_to_be32(FW_LEN16(wdog));
+ wdog.timeout = cpu_to_be32(ticks);
+ wdog.action = cpu_to_be32(action);
+
+ return t4_wr_mbox(adapter, mbox, &wdog, sizeof wdog, NULL);
+}
+
+int t4_get_devlog_level(struct adapter *adapter, unsigned int *level)
+{
+ struct fw_devlog_cmd devlog_cmd;
+ int ret;
+
+ memset(&devlog_cmd, 0, sizeof(devlog_cmd));
+ devlog_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_DEVLOG_CMD) |
+ F_FW_CMD_REQUEST | F_FW_CMD_READ);
+ devlog_cmd.retval_len16 = cpu_to_be32(FW_LEN16(devlog_cmd));
+ ret = t4_wr_mbox(adapter, adapter->mbox, &devlog_cmd,
+ sizeof(devlog_cmd), &devlog_cmd);
+ if (ret)
+ return ret;
+
+ *level = devlog_cmd.level;
+ return 0;
+}
+
+int t4_set_devlog_level(struct adapter *adapter, unsigned int level)
+{
+ struct fw_devlog_cmd devlog_cmd;
+
+ memset(&devlog_cmd, 0, sizeof(devlog_cmd));
+ devlog_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_DEVLOG_CMD) |
+ F_FW_CMD_REQUEST |
+ F_FW_CMD_WRITE);
+ devlog_cmd.level = level;
+ devlog_cmd.retval_len16 = cpu_to_be32(FW_LEN16(devlog_cmd));
+ return t4_wr_mbox(adapter, adapter->mbox, &devlog_cmd,
+ sizeof(devlog_cmd), &devlog_cmd);
+}
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