diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c | 78 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 62 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.h | 7 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 27 |
9 files changed, 195 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h b/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h index f99db7b283fc..605689957496 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h @@ -145,6 +145,14 @@ struct cudbg_tid_info_region_rev1 { u32 reserved[16]; }; +#define CUDBG_MAX_FL_QIDS 1024 + +struct cudbg_ch_cntxt { + u32 cntxt_type; + u32 cntxt_id; + u32 data[SGE_CTXT_SIZE / 4]; +}; + #define CUDBG_MAX_RPLC_SIZE 128 struct cudbg_mps_tcam { diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h b/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h index 4e5d189eae62..e10ff1ee62c5 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h @@ -63,6 +63,7 @@ enum cudbg_dbg_entity_type { CUDBG_PCIE_INDIRECT = 50, CUDBG_PM_INDIRECT = 51, CUDBG_TID_INFO = 54, + CUDBG_DUMP_CONTEXT = 56, CUDBG_MPS_TCAM = 57, CUDBG_VPD_DATA = 58, CUDBG_LE_TCAM = 59, diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c index dd7e26be98cf..d699bf88d18f 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c @@ -1115,6 +1115,84 @@ int cudbg_collect_tid(struct cudbg_init *pdbg_init, return rc; } +int cudbg_dump_context_size(struct adapter *padap) +{ + u32 value, size; + u8 flq; + + value = t4_read_reg(padap, SGE_FLM_CFG_A); + + /* Get number of data freelist queues */ + flq = HDRSTARTFLQ_G(value); + size = CUDBG_MAX_FL_QIDS >> flq; + + /* Add extra space for congestion manager contexts. + * The number of CONM contexts are same as number of freelist + * queues. + */ + size += size; + return size * sizeof(struct cudbg_ch_cntxt); +} + +static void cudbg_read_sge_ctxt(struct cudbg_init *pdbg_init, u32 cid, + enum ctxt_type ctype, u32 *data) +{ + struct adapter *padap = pdbg_init->adap; + int rc = -1; + + /* Under heavy traffic, the SGE Queue contexts registers will be + * frequently accessed by firmware. + * + * To avoid conflicts with firmware, always ask firmware to fetch + * the SGE Queue contexts via mailbox. On failure, fallback to + * accessing hardware registers directly. + */ + if (is_fw_attached(pdbg_init)) + rc = t4_sge_ctxt_rd(padap, padap->mbox, cid, ctype, data); + if (rc) + t4_sge_ctxt_rd_bd(padap, cid, ctype, data); +} + +int cudbg_collect_dump_context(struct cudbg_init *pdbg_init, + struct cudbg_buffer *dbg_buff, + struct cudbg_error *cudbg_err) +{ + struct adapter *padap = pdbg_init->adap; + struct cudbg_buffer temp_buff = { 0 }; + struct cudbg_ch_cntxt *buff; + u32 size, i = 0; + int rc; + + rc = cudbg_dump_context_size(padap); + if (rc <= 0) + return CUDBG_STATUS_ENTITY_NOT_FOUND; + + size = rc; + rc = cudbg_get_buff(dbg_buff, size, &temp_buff); + if (rc) + return rc; + + buff = (struct cudbg_ch_cntxt *)temp_buff.data; + while (size > 0) { + buff->cntxt_type = CTXT_FLM; + buff->cntxt_id = i; + cudbg_read_sge_ctxt(pdbg_init, i, CTXT_FLM, buff->data); + buff++; + size -= sizeof(struct cudbg_ch_cntxt); + + buff->cntxt_type = CTXT_CNM; + buff->cntxt_id = i; + cudbg_read_sge_ctxt(pdbg_init, i, CTXT_CNM, buff->data); + buff++; + size -= sizeof(struct cudbg_ch_cntxt); + + i++; + } + + cudbg_write_and_release_buff(&temp_buff, dbg_buff); + return rc; +} + static inline void cudbg_tcamxy2valmask(u64 x, u64 y, u8 *addr, u64 *mask) { *mask = x | y; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h index ebb2d9907fc9..caeee8e33e86 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h @@ -123,6 +123,9 @@ int cudbg_collect_pm_indirect(struct cudbg_init *pdbg_init, int cudbg_collect_tid(struct cudbg_init *pdbg_init, struct cudbg_buffer *dbg_buff, struct cudbg_error *cudbg_err); +int cudbg_collect_dump_context(struct cudbg_init *pdbg_init, + struct cudbg_buffer *dbg_buff, + struct cudbg_error *cudbg_err); int cudbg_collect_mps_tcam(struct cudbg_init *pdbg_init, struct cudbg_buffer *dbg_buff, struct cudbg_error *cudbg_err); @@ -158,6 +161,7 @@ struct cudbg_entity_hdr *cudbg_get_entity_hdr(void *outbuf, int i); void cudbg_align_debug_buffer(struct cudbg_buffer *dbg_buff, struct cudbg_entity_hdr *entity_hdr); u32 cudbg_cim_obq_size(struct adapter *padap, int qid); +int cudbg_dump_context_size(struct adapter *padap); struct cudbg_tcam; void cudbg_fill_le_tcam_info(struct adapter *padap, diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index 0de1a4b2223e..6f9fa6e3c42a 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -1670,6 +1670,10 @@ int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox, void t4_read_pace_tbl(struct adapter *adap, unsigned int pace_vals[NTX_SCHED]); void t4_get_tx_sched(struct adapter *adap, unsigned int sched, unsigned int *kbps, unsigned int *ipg, bool sleep_ok); +int t4_sge_ctxt_rd(struct adapter *adap, unsigned int mbox, unsigned int cid, + enum ctxt_type ctype, u32 *data); +int t4_sge_ctxt_rd_bd(struct adapter *adap, unsigned int cid, + enum ctxt_type ctype, u32 *data); int t4_sched_params(struct adapter *adapter, int type, int level, int mode, int rateunit, int ratemode, int channel, int class, int minrate, int maxrate, int weight, int pktsize); diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c index 05eb2d2ef592..29cc625e9833 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c @@ -60,6 +60,7 @@ static const struct cxgb4_collect_entity cxgb4_collect_hw_dump[] = { { CUDBG_PCIE_INDIRECT, cudbg_collect_pcie_indirect }, { CUDBG_PM_INDIRECT, cudbg_collect_pm_indirect }, { CUDBG_TID_INFO, cudbg_collect_tid }, + { CUDBG_DUMP_CONTEXT, cudbg_collect_dump_context }, { CUDBG_MPS_TCAM, cudbg_collect_mps_tcam }, { CUDBG_VPD_DATA, cudbg_collect_vpd_data }, { CUDBG_LE_TCAM, cudbg_collect_le_tcam }, @@ -218,6 +219,9 @@ static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity) case CUDBG_TID_INFO: len = sizeof(struct cudbg_tid_info_region_rev1); break; + case CUDBG_DUMP_CONTEXT: + len = cudbg_dump_context_size(adap); + break; case CUDBG_MPS_TCAM: len = sizeof(struct cudbg_mps_tcam) * adap->params.arch.mps_tcam_size; diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index b4fad081ac78..f63210f15579 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -9647,6 +9647,68 @@ void t4_get_tx_sched(struct adapter *adap, unsigned int sched, } } +/* t4_sge_ctxt_rd - read an SGE context through FW + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @cid: the context id + * @ctype: the context type + * @data: where to store the context data + * + * Issues a FW command through the given mailbox to read an SGE context. + */ +int t4_sge_ctxt_rd(struct adapter *adap, unsigned int mbox, unsigned int cid, + enum ctxt_type ctype, u32 *data) +{ + struct fw_ldst_cmd c; + int ret; + + if (ctype == CTXT_FLM) + ret = FW_LDST_ADDRSPC_SGE_FLMC; + else + ret = FW_LDST_ADDRSPC_SGE_CONMC; + + memset(&c, 0, sizeof(c)); + c.op_to_addrspace = cpu_to_be32(FW_CMD_OP_V(FW_LDST_CMD) | + FW_CMD_REQUEST_F | FW_CMD_READ_F | + FW_LDST_CMD_ADDRSPACE_V(ret)); + c.cycles_to_len16 = cpu_to_be32(FW_LEN16(c)); + c.u.idctxt.physid = cpu_to_be32(cid); + + ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c); + if (ret == 0) { + data[0] = be32_to_cpu(c.u.idctxt.ctxt_data0); + data[1] = be32_to_cpu(c.u.idctxt.ctxt_data1); + data[2] = be32_to_cpu(c.u.idctxt.ctxt_data2); + data[3] = be32_to_cpu(c.u.idctxt.ctxt_data3); + data[4] = be32_to_cpu(c.u.idctxt.ctxt_data4); + data[5] = be32_to_cpu(c.u.idctxt.ctxt_data5); + } + return ret; +} + +/** + * t4_sge_ctxt_rd_bd - read an SGE context bypassing FW + * @adap: the adapter + * @cid: the context id + * @ctype: the context type + * @data: where to store the context data + * + * Reads an SGE context directly, bypassing FW. This is only for + * debugging when FW is unavailable. + */ +int t4_sge_ctxt_rd_bd(struct adapter *adap, unsigned int cid, + enum ctxt_type ctype, u32 *data) +{ + int i, ret; + + t4_write_reg(adap, SGE_CTXT_CMD_A, CTXTQID_V(cid) | CTXTTYPE_V(ctype)); + ret = t4_wait_op_done(adap, SGE_CTXT_CMD_A, BUSY_F, 0, 3, 1); + if (!ret) + for (i = SGE_CTXT_DATA0_A; i <= SGE_CTXT_DATA5_A; i += 4) + *data++ = t4_read_reg(adap, i); + return ret; +} + int t4_sched_params(struct adapter *adapter, int type, int level, int mode, int rateunit, int ratemode, int channel, int class, int minrate, int maxrate, int weight, int pktsize) diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h index 7c6af14905c2..a964ed184356 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h @@ -68,6 +68,12 @@ enum { ULPRX_LA_SIZE = 512, /* # of 256-bit words in ULP_RX LA */ }; +/* SGE context types */ +enum ctxt_type { + CTXT_FLM = 2, + CTXT_CNM, +}; + enum { SF_PAGE_SIZE = 256, /* serial flash page size */ SF_SEC_SIZE = 64 * 1024, /* serial flash sector size */ @@ -79,6 +85,7 @@ enum { MBOX_OWNER_NONE, MBOX_OWNER_FW, MBOX_OWNER_DRV }; /* mailbox owners */ enum { SGE_MAX_WR_LEN = 512, /* max WR size in bytes */ + SGE_CTXT_SIZE = 24, /* size of SGE context */ SGE_NTIMERS = 6, /* # of interrupt holdoff timer values */ SGE_NCOUNTERS = 4, /* # of interrupt packet counter values */ SGE_MAX_IQ_SIZE = 65520, diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h index f5576ce004fa..a7cfece72828 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h @@ -153,6 +153,23 @@ #define T6_DBVFIFO_SIZE_M 0x1fffU #define T6_DBVFIFO_SIZE_G(x) (((x) >> T6_DBVFIFO_SIZE_S) & T6_DBVFIFO_SIZE_M) +#define SGE_CTXT_CMD_A 0x11fc + +#define BUSY_S 31 +#define BUSY_V(x) ((x) << BUSY_S) +#define BUSY_F BUSY_V(1U) + +#define CTXTTYPE_S 24 +#define CTXTTYPE_M 0x3U +#define CTXTTYPE_V(x) ((x) << CTXTTYPE_S) + +#define CTXTQID_S 0 +#define CTXTQID_M 0x1ffffU +#define CTXTQID_V(x) ((x) << CTXTQID_S) + +#define SGE_CTXT_DATA0_A 0x1200 +#define SGE_CTXT_DATA5_A 0x1214 + #define GLOBALENABLE_S 0 #define GLOBALENABLE_V(x) ((x) << GLOBALENABLE_S) #define GLOBALENABLE_F GLOBALENABLE_V(1U) @@ -322,6 +339,16 @@ #define SGE_IMSG_CTXT_BADDR_A 0x1088 #define SGE_FLM_CACHE_BADDR_A 0x108c +#define SGE_FLM_CFG_A 0x1090 + +#define NOHDR_S 18 +#define NOHDR_V(x) ((x) << NOHDR_S) +#define NOHDR_F NOHDR_V(1U) + +#define HDRSTARTFLQ_S 11 +#define HDRSTARTFLQ_M 0x7U +#define HDRSTARTFLQ_G(x) (((x) >> HDRSTARTFLQ_S) & HDRSTARTFLQ_M) + #define SGE_INGRESS_RX_THRESHOLD_A 0x10a0 #define THRESHOLD_0_S 24 |