diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/firmware.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/firmware.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/firmware.c b/drivers/infiniband/hw/hfi1/firmware.c index ed680fda611d..13db8eb4f4ec 100644 --- a/drivers/infiniband/hw/hfi1/firmware.c +++ b/drivers/infiniband/hw/hfi1/firmware.c @@ -206,6 +206,9 @@ static const struct firmware *platform_config; /* the number of fabric SerDes on the SBus */ #define NUM_FABRIC_SERDES 4 +/* ASIC_STS_SBUS_RESULT.RESULT_CODE value */ +#define SBUS_READ_COMPLETE 0x4 + /* SBus fabric SerDes addresses, one set per HFI */ static const u8 fabric_serdes_addrs[2][NUM_FABRIC_SERDES] = { { 0x01, 0x02, 0x03, 0x04 }, @@ -240,6 +243,7 @@ static const u8 all_pcie_serdes_broadcast = 0xe0; static void dispose_one_firmware(struct firmware_details *fdet); static int load_fabric_serdes_firmware(struct hfi1_devdata *dd, struct firmware_details *fdet); +static void dump_fw_version(struct hfi1_devdata *dd); /* * Read a single 64-bit value from 8051 data memory. @@ -1079,6 +1083,44 @@ void sbus_request(struct hfi1_devdata *dd, } /* + * Read a value from the SBus. + * + * Requires the caller to be in fast mode + */ +static u32 sbus_read(struct hfi1_devdata *dd, u8 receiver_addr, u8 data_addr, + u32 data_in) +{ + u64 reg; + int retries; + int success = 0; + u32 result = 0; + u32 result_code = 0; + + sbus_request(dd, receiver_addr, data_addr, READ_SBUS_RECEIVER, data_in); + + for (retries = 0; retries < 100; retries++) { + usleep_range(1000, 1200); /* arbitrary */ + reg = read_csr(dd, ASIC_STS_SBUS_RESULT); + result_code = (reg >> ASIC_STS_SBUS_RESULT_RESULT_CODE_SHIFT) + & ASIC_STS_SBUS_RESULT_RESULT_CODE_MASK; + if (result_code != SBUS_READ_COMPLETE) + continue; + + success = 1; + result = (reg >> ASIC_STS_SBUS_RESULT_DATA_OUT_SHIFT) + & ASIC_STS_SBUS_RESULT_DATA_OUT_MASK; + break; + } + + if (!success) { + dd_dev_err(dd, "%s: read failed, result code 0x%x\n", __func__, + result_code); + } + + return result; +} + +/* * Turn off the SBus and fabric serdes spicos. * * + Must be called with Sbus fast mode turned on. @@ -1636,6 +1678,7 @@ int load_firmware(struct hfi1_devdata *dd) return ret; } + dump_fw_version(dd); return 0; } @@ -2054,3 +2097,85 @@ void read_guid(struct hfi1_devdata *dd) dd_dev_info(dd, "GUID %llx", (unsigned long long)dd->base_guid); } + +/* read and display firmware version info */ +static void dump_fw_version(struct hfi1_devdata *dd) +{ + u32 pcie_vers[NUM_PCIE_SERDES]; + u32 fabric_vers[NUM_FABRIC_SERDES]; + u32 sbus_vers; + int i; + int all_same; + int ret; + u8 rcv_addr; + + ret = acquire_chip_resource(dd, CR_SBUS, SBUS_TIMEOUT); + if (ret) { + dd_dev_err(dd, "Unable to acquire SBus to read firmware versions\n"); + return; + } + + /* set fast mode */ + set_sbus_fast_mode(dd); + + /* read version for SBus Master */ + sbus_request(dd, SBUS_MASTER_BROADCAST, 0x02, WRITE_SBUS_RECEIVER, 0); + sbus_request(dd, SBUS_MASTER_BROADCAST, 0x07, WRITE_SBUS_RECEIVER, 0x1); + /* wait for interrupt to be processed */ + usleep_range(10000, 11000); + sbus_vers = sbus_read(dd, SBUS_MASTER_BROADCAST, 0x08, 0x1); + dd_dev_info(dd, "SBus Master firmware version 0x%08x\n", sbus_vers); + + /* read version for PCIe SerDes */ + all_same = 1; + pcie_vers[0] = 0; + for (i = 0; i < NUM_PCIE_SERDES; i++) { + rcv_addr = pcie_serdes_addrs[dd->hfi1_id][i]; + sbus_request(dd, rcv_addr, 0x03, WRITE_SBUS_RECEIVER, 0); + /* wait for interrupt to be processed */ + usleep_range(10000, 11000); + pcie_vers[i] = sbus_read(dd, rcv_addr, 0x04, 0x0); + if (i > 0 && pcie_vers[0] != pcie_vers[i]) + all_same = 0; + } + + if (all_same) { + dd_dev_info(dd, "PCIe SerDes firmware version 0x%x\n", + pcie_vers[0]); + } else { + dd_dev_warn(dd, "PCIe SerDes do not have the same firmware version\n"); + for (i = 0; i < NUM_PCIE_SERDES; i++) { + dd_dev_info(dd, + "PCIe SerDes lane %d firmware version 0x%x\n", + i, pcie_vers[i]); + } + } + + /* read version for fabric SerDes */ + all_same = 1; + fabric_vers[0] = 0; + for (i = 0; i < NUM_FABRIC_SERDES; i++) { + rcv_addr = fabric_serdes_addrs[dd->hfi1_id][i]; + sbus_request(dd, rcv_addr, 0x03, WRITE_SBUS_RECEIVER, 0); + /* wait for interrupt to be processed */ + usleep_range(10000, 11000); + fabric_vers[i] = sbus_read(dd, rcv_addr, 0x04, 0x0); + if (i > 0 && fabric_vers[0] != fabric_vers[i]) + all_same = 0; + } + + if (all_same) { + dd_dev_info(dd, "Fabric SerDes firmware version 0x%x\n", + fabric_vers[0]); + } else { + dd_dev_warn(dd, "Fabric SerDes do not have the same firmware version\n"); + for (i = 0; i < NUM_FABRIC_SERDES; i++) { + dd_dev_info(dd, + "Fabric SerDes lane %d firmware version 0x%x\n", + i, fabric_vers[i]); + } + } + + clear_sbus_fast_mode(dd); + release_chip_resource(dd, CR_SBUS); +} |