From 2c1f73c3ddfd526750b003bc49a255641ac1f0ca Mon Sep 17 00:00:00 2001 From: Ron Mercer Date: Fri, 15 Jan 2010 13:31:30 +0000 Subject: qlge: Add RAM dump to firmware dump. Signed-off-by: Ron Mercer Signed-off-by: David S. Miller --- drivers/net/qlge/qlge.h | 3 ++ drivers/net/qlge/qlge_dbg.c | 35 +++++++++++++++++++++ drivers/net/qlge/qlge_mpi.c | 76 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 114 insertions(+) diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h index bbdd388aa9b7..05feb03e9da6 100644 --- a/drivers/net/qlge/qlge.h +++ b/drivers/net/qlge/qlge.h @@ -2225,6 +2225,9 @@ int ql_read_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 *data); int ql_write_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 data); int ql_unpause_mpi_risc(struct ql_adapter *qdev); int ql_pause_mpi_risc(struct ql_adapter *qdev); +int ql_hard_reset_mpi_risc(struct ql_adapter *qdev); +int ql_dump_risc_ram_area(struct ql_adapter *qdev, void *buf, + u32 ram_addr, int word_count); int ql_core_dump(struct ql_adapter *qdev, struct ql_mpi_coredump *mpi_coredump); int ql_mb_about_fw(struct ql_adapter *qdev); diff --git a/drivers/net/qlge/qlge_dbg.c b/drivers/net/qlge/qlge_dbg.c index 913ca1e10e3e..833cfd7a22c1 100644 --- a/drivers/net/qlge/qlge_dbg.c +++ b/drivers/net/qlge/qlge_dbg.c @@ -647,6 +647,41 @@ int ql_core_dump(struct ql_adapter *qdev, struct ql_mpi_coredump *mpi_coredump) "Failed RISC unpause. Status = 0x%.08x\n", status); goto err; } + + /* Reset the RISC so we can dump RAM */ + status = ql_hard_reset_mpi_risc(qdev); + if (status) { + QPRINTK(qdev, DRV, ERR, + "Failed RISC reset. Status = 0x%.08x\n", status); + goto err; + } + + ql_build_coredump_seg_header(&mpi_coredump->code_ram_seg_hdr, + WCS_RAM_SEG_NUM, + sizeof(struct mpi_coredump_segment_header) + + sizeof(mpi_coredump->code_ram), + "WCS RAM"); + status = ql_dump_risc_ram_area(qdev, &mpi_coredump->code_ram[0], + CODE_RAM_ADDR, CODE_RAM_CNT); + if (status) { + QPRINTK(qdev, DRV, ERR, + "Failed Dump of CODE RAM. Status = 0x%.08x\n", status); + goto err; + } + + /* Insert the segment header */ + ql_build_coredump_seg_header(&mpi_coredump->memc_ram_seg_hdr, + MEMC_RAM_SEG_NUM, + sizeof(struct mpi_coredump_segment_header) + + sizeof(mpi_coredump->memc_ram), + "MEMC RAM"); + status = ql_dump_risc_ram_area(qdev, &mpi_coredump->memc_ram[0], + MEMC_RAM_ADDR, MEMC_RAM_CNT); + if (status) { + QPRINTK(qdev, DRV, ERR, + "Failed Dump of MEMC RAM. Status = 0x%.08x\n", status); + goto err; + } err: ql_sem_unlock(qdev, SEM_PROC_REG_MASK); /* does flush too */ return status; diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c index 242b1ea955e4..3304eb7df581 100644 --- a/drivers/net/qlge/qlge_mpi.c +++ b/drivers/net/qlge/qlge_mpi.c @@ -30,6 +30,25 @@ int ql_pause_mpi_risc(struct ql_adapter *qdev) return (count == 0) ? -ETIMEDOUT : 0; } +int ql_hard_reset_mpi_risc(struct ql_adapter *qdev) +{ + u32 tmp; + int count = UDELAY_COUNT; + + /* Reset the RISC */ + ql_write32(qdev, CSR, CSR_CMD_SET_RST); + do { + tmp = ql_read32(qdev, CSR); + if (tmp & CSR_RR) { + ql_write32(qdev, CSR, CSR_CMD_CLR_RST); + break; + } + mdelay(UDELAY_DELAY); + count--; + } while (count); + return (count == 0) ? -ETIMEDOUT : 0; +} + int ql_read_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 *data) { int status; @@ -728,6 +747,63 @@ int ql_mb_set_port_cfg(struct ql_adapter *qdev) return status; } +int ql_mb_dump_ram(struct ql_adapter *qdev, u64 req_dma, u32 addr, + u32 size) +{ + int status = 0; + struct mbox_params mbc; + struct mbox_params *mbcp = &mbc; + + memset(mbcp, 0, sizeof(struct mbox_params)); + + mbcp->in_count = 9; + mbcp->out_count = 1; + + mbcp->mbox_in[0] = MB_CMD_DUMP_RISC_RAM; + mbcp->mbox_in[1] = LSW(addr); + mbcp->mbox_in[2] = MSW(req_dma); + mbcp->mbox_in[3] = LSW(req_dma); + mbcp->mbox_in[4] = MSW(size); + mbcp->mbox_in[5] = LSW(size); + mbcp->mbox_in[6] = MSW(MSD(req_dma)); + mbcp->mbox_in[7] = LSW(MSD(req_dma)); + mbcp->mbox_in[8] = MSW(addr); + + + status = ql_mailbox_command(qdev, mbcp); + if (status) + return status; + + if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) { + QPRINTK(qdev, DRV, ERR, + "Failed to dump risc RAM.\n"); + status = -EIO; + } + return status; +} + +/* Issue a mailbox command to dump RISC RAM. */ +int ql_dump_risc_ram_area(struct ql_adapter *qdev, void *buf, + u32 ram_addr, int word_count) +{ + int status; + char *my_buf; + dma_addr_t buf_dma; + + my_buf = pci_alloc_consistent(qdev->pdev, word_count * sizeof(u32), + &buf_dma); + if (!my_buf) + return -EIO; + + status = ql_mb_dump_ram(qdev, buf_dma, ram_addr, word_count); + if (!status) + memcpy(buf, my_buf, word_count * sizeof(u32)); + + pci_free_consistent(qdev->pdev, word_count * sizeof(u32), my_buf, + buf_dma); + return status; +} + /* Get link settings and maximum frame size settings * for the current port. * Most likely will block. -- cgit v1.2.3