From 27c915a4d843b90eb4065298969578d15e5e6ab0 Mon Sep 17 00:00:00 2001 From: Dhananjay Phadke Date: Wed, 14 Jan 2009 20:49:00 -0800 Subject: [PATCH] netxen: firmware init fix o Fix order or rom register writes. o Reduce udelays when writing rom registers. This cuts the firmware init time by 40%. o Do not reset core/memory clocks when reinitializing driver. Firmware willl handle this when initialized. Signed-off-by: Dhananjay Phadke Signed-off-by: David S. Miller --- drivers/net/netxen/netxen_nic_hw.c | 6 ++-- drivers/net/netxen/netxen_nic_init.c | 35 ++++++++++++--------- drivers/net/netxen/netxen_nic_main.c | 47 +++++++++++++++++----------- 3 files changed, 51 insertions(+), 37 deletions(-) diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c index 4276f7f8223..511db2ac57c 100644 --- a/drivers/net/netxen/netxen_nic_hw.c +++ b/drivers/net/netxen/netxen_nic_hw.c @@ -939,7 +939,7 @@ int netxen_load_firmware(struct netxen_adapter *adapter) { int i; u32 data, size = 0; - u32 flashaddr = NETXEN_BOOTLD_START, memaddr = NETXEN_BOOTLD_START; + u32 flashaddr = NETXEN_BOOTLD_START; size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START)/4; @@ -951,10 +951,8 @@ int netxen_load_firmware(struct netxen_adapter *adapter) if (netxen_rom_fast_read(adapter, flashaddr, (int *)&data) != 0) return -EIO; - adapter->pci_mem_write(adapter, memaddr, &data, 4); + adapter->pci_mem_write(adapter, flashaddr, &data, 4); flashaddr += 4; - memaddr += 4; - cond_resched(); } msleep(1); diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c index c0e06a65317..a3203644b48 100644 --- a/drivers/net/netxen/netxen_nic_init.c +++ b/drivers/net/netxen/netxen_nic_init.c @@ -439,6 +439,8 @@ static int netxen_wait_rom_done(struct netxen_adapter *adapter) long timeout = 0; long done = 0; + cond_resched(); + while (done == 0) { done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS); done &= 2; @@ -533,12 +535,9 @@ static int do_rom_fast_write(struct netxen_adapter *adapter, int addr, static int do_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp) { - cond_resched(); - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); - netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); - udelay(100); /* prevent bursting on CRB */ netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); + netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb); if (netxen_wait_rom_done(adapter)) { printk("Error waiting for rom done\n"); @@ -546,7 +545,7 @@ static int do_rom_fast_read(struct netxen_adapter *adapter, } /* reset abyte_cnt and dummy_byte_cnt */ netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); - udelay(100); /* prevent bursting on CRB */ + udelay(10); netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA); @@ -884,14 +883,16 @@ int netxen_flash_unlock(struct netxen_adapter *adapter) int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) { int addr, val; - int i, init_delay = 0; + int i, n, init_delay = 0; struct crb_addr_pair *buf; - unsigned offset, n; + unsigned offset; u32 off; /* resetall */ + rom_lock(adapter); netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xffffffff); + netxen_rom_unlock(adapter); if (verbose) { if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0) @@ -910,7 +911,7 @@ int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { if (netxen_rom_fast_read(adapter, 0, &n) != 0 || - (n != 0xcafecafeUL) || + (n != 0xcafecafe) || netxen_rom_fast_read(adapter, 4, &n) != 0) { printk(KERN_ERR "%s: ERROR Reading crb_init area: " "n: %08x\n", netxen_nic_driver_name, n); @@ -975,6 +976,14 @@ int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) /* do not reset PCI */ if (off == (ROMUSB_GLB + 0xbc)) continue; + if (off == (ROMUSB_GLB + 0xa8)) + continue; + if (off == (ROMUSB_GLB + 0xc8)) /* core clock */ + continue; + if (off == (ROMUSB_GLB + 0x24)) /* MN clock */ + continue; + if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */ + continue; if (off == (NETXEN_CRB_PEG_NET_1 + 0x18)) buf[i].data = 0x1020; /* skip the function enable register */ @@ -992,23 +1001,21 @@ int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) continue; } + init_delay = 1; /* After writing this register, HW needs time for CRB */ /* to quiet down (else crb_window returns 0xffffffff) */ if (off == NETXEN_ROMUSB_GLB_SW_RESET) { - init_delay = 1; + init_delay = 1000; if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { /* hold xdma in reset also */ buf[i].data = NETXEN_NIC_XDMA_RESET; + buf[i].data = 0x8000ff; } } adapter->hw_write_wx(adapter, off, &buf[i].data, 4); - if (init_delay == 1) { - msleep(1000); - init_delay = 0; - } - msleep(1); + msleep(init_delay); } kfree(buf); diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 2c6ce6ffde0..cbe2b3e814d 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -280,10 +280,15 @@ static void netxen_check_options(struct netxen_adapter *adapter) static int netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) { - int ret = 0; + u32 val, timeout; if (first_boot == 0x55555555) { /* This is the first boot after power up */ + adapter->pci_write_normalize(adapter, + NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); + + if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) + return 0; /* PCI bus master workaround */ adapter->hw_read_wx(adapter, @@ -303,18 +308,26 @@ netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) /* clear the register for future unloads/loads */ adapter->pci_write_normalize(adapter, NETXEN_CAM_RAM(0x1fc), 0); - ret = -1; + return -EIO; } - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - /* Start P2 boot loader */ - adapter->pci_write_normalize(adapter, - NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); - adapter->pci_write_normalize(adapter, - NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1); - } + /* Start P2 boot loader */ + val = adapter->pci_read_normalize(adapter, + NETXEN_ROMUSB_GLB_PEGTUNE_DONE); + adapter->pci_write_normalize(adapter, + NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); + timeout = 0; + do { + msleep(1); + val = adapter->pci_read_normalize(adapter, + NETXEN_CAM_RAM(0x1fc)); + + if (++timeout > 5000) + return -EIO; + + } while (val == NETXEN_BDINFO_MAGIC); } - return ret; + return 0; } static void netxen_set_port_mode(struct netxen_adapter *adapter) @@ -793,8 +806,8 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) CRB_CMDPEG_STATE, 0); netxen_pinit_from_rom(adapter, 0); msleep(1); - netxen_load_firmware(adapter); } + netxen_load_firmware(adapter); if (NX_IS_REVISION_P3(revision_id)) netxen_pcie_strap_init(adapter); @@ -810,13 +823,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } - if ((first_boot == 0x55555555) && - (NX_IS_REVISION_P2(revision_id))) { - /* Unlock the HW, prompting the boot sequence */ - adapter->pci_write_normalize(adapter, - NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1); - } - err = netxen_initialize_adapter_offload(adapter); if (err) goto err_out_iounmap; @@ -830,7 +836,9 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) adapter->pci_write_normalize(adapter, CRB_DRIVER_VERSION, i); /* Handshake with the card before we register the devices. */ - netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); + err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); + if (err) + goto err_out_free_offload; } /* first_driver */ @@ -934,6 +942,7 @@ err_out_disable_msi: if (adapter->flags & NETXEN_NIC_MSI_ENABLED) pci_disable_msi(pdev); +err_out_free_offload: if (first_driver) netxen_free_adapter_offload(adapter); -- 2.41.1