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author | Al Viro <viro@zeniv.linux.org.uk> | 2013-03-30 17:20:54 -0400 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-04-09 14:13:12 -0400 |
commit | bdcecec3242368688c44eebb6c7f5fd460990c40 (patch) | |
tree | e2a833e742c1420e10075c084468a64f52021058 /drivers/staging | |
parent | f1b68d4ba40ab327a2aeec1e1fd667d9b9f5d777 (diff) | |
download | op-kernel-dev-bdcecec3242368688c44eebb6c7f5fd460990c40.zip op-kernel-dev-bdcecec3242368688c44eebb6c7f5fd460990c40.tar.gz |
silicom: untangle module_init
Helper functions are often useful. So are local variables...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/staging')
-rw-r--r-- | drivers/staging/silicom/bp_mod.c | 325 |
1 files changed, 133 insertions, 192 deletions
diff --git a/drivers/staging/silicom/bp_mod.c b/drivers/staging/silicom/bp_mod.c index 2c73341..e737939 100644 --- a/drivers/staging/silicom/bp_mod.c +++ b/drivers/staging/silicom/bp_mod.c @@ -6657,6 +6657,118 @@ static bpmod_info_t tx_ctl_pci_tbl[] = { {0,} }; +static void find_fw(bpctl_dev_t *dev) +{ + unsigned long mmio_start, mmio_len; + struct pci_dev *pdev1 = dev->pdev; + + if ((OLD_IF_SERIES(dev->subdevice)) || + (INTEL_IF_SERIES(dev->subdevice))) + dev->bp_fw_ver = 0xff; + else + dev->bp_fw_ver = bypass_fw_ver(dev); + + if (dev->bp_10gb == 1 && dev->bp_fw_ver == 0xff) { + int cnt = 100; + while (cnt--) { + iounmap((void *)dev->mem_map); + mmio_start = pci_resource_start(pdev1, 0); + mmio_len = pci_resource_len(pdev1, 0); + + dev->mem_map = (unsigned long) + ioremap(mmio_start, mmio_len); + + dev->bp_fw_ver = bypass_fw_ver(dev); + if (dev-> bp_fw_ver == 0xa8) + break; + } + } + /* dev->bp_fw_ver=0xa8; */ + printk("firmware version: 0x%x\n", dev->bp_fw_ver); +} + +static int init_one(bpctl_dev_t *dev, bpmod_info_t *info, struct pci_dev *pdev1) +{ + unsigned long mmio_start, mmio_len; + + dev->pdev = pdev1; + mmio_start = pci_resource_start(pdev1, 0); + mmio_len = pci_resource_len(pdev1, 0); + + dev->desc = dev_desc[info->index].name; + dev->name = info->bp_name; + dev->device = info->device; + dev->vendor = info->vendor; + dev->subdevice = info->subdevice; + dev->subvendor = info->subvendor; + dev->func = PCI_FUNC(pdev1->devfn); + dev->slot = PCI_SLOT(pdev1->devfn); + dev->bus = pdev1->bus->number; + dev->mem_map = (unsigned long)ioremap(mmio_start, mmio_len); +#ifdef BP_SYNC_FLAG + spin_lock_init(&dev->bypass_wr_lock); +#endif + if (BP10G9_IF_SERIES(dev->subdevice)) + dev->bp_10g9 = 1; + if (BP10G_IF_SERIES(dev->subdevice)) + dev->bp_10g = 1; + if (PEG540_IF_SERIES(dev->subdevice)) + dev->bp_540 = 1; + if (PEGF5_IF_SERIES(dev->subdevice)) + dev->bp_fiber5 = 1; + if (PEG80_IF_SERIES(dev->subdevice)) + dev->bp_i80 = 1; + if (PEGF80_IF_SERIES(dev->subdevice)) + dev->bp_i80 = 1; + if ((dev->subdevice & 0xa00) == 0xa00) + dev->bp_i80 = 1; + if (BP10GB_IF_SERIES(dev->subdevice)) { + if (dev->ifindex == 0) { + unregister_chrdev(major_num, DEVICE_NAME); + printk("Please load network driver for %s adapter!\n", + dev->name); + return -1; + } + + if (dev->ndev && !(dev->ndev->flags & IFF_UP)) { + unregister_chrdev(major_num, DEVICE_NAME); + printk("Please bring up network interfaces for %s adapter!\n", + dev->name); + return -1; + } + dev->bp_10gb = 1; + } + + if (!dev->bp_10g9) { + if (is_bypass_fn(dev)) { + printk(KERN_INFO "%s found, ", + dev->name); + find_fw(dev); + } + dev->wdt_status = WDT_STATUS_UNKNOWN; + dev->reset_time = 0; + atomic_set(&dev->wdt_busy, 0); + dev->bp_status_un = 1; + + bypass_caps_init(dev); + + init_bypass_wd_auto(dev); + init_bypass_tpl_auto(dev); + if (NOKIA_SERIES(dev->subdevice)) + reset_cont(dev); + } +#ifdef BP_SELF_TEST + if ((dev->bp_tx_data = kzalloc(BPTEST_DATA_LEN, GFP_KERNEL))) { + memset(dev->bp_tx_data, 0xff, 6); + memset(dev->bp_tx_data + 6, 0x0, 1); + memset(dev->bp_tx_data + 7, 0xaa, 5); + *(__be16 *)(dev->bp_tx_data + 12) = htons(ETH_P_BPTEST); + } else + printk("bp_ctl: Memory allocation error!\n"); +#endif + return 0; +} + /* * Initialize the module - Register the character device */ @@ -6665,7 +6777,7 @@ static int __init bypass_init_module(void) { int ret_val, idx, idx_dev = 0; struct pci_dev *pdev1 = NULL; - unsigned long mmio_start, mmio_len; + bpctl_dev_t *dev; printk(BP_MOD_DESCR " v" BP_MOD_VER "\n"); ret_val = register_chrdev(major_num, DEVICE_NAME, &Fops); @@ -6700,181 +6812,16 @@ static int __init bypass_init_module(void) memset(bpctl_dev_arr, 0, ((device_num) * sizeof(bpctl_dev_t))); pdev1 = NULL; + dev = bpctl_dev_arr; for (idx = 0; tx_ctl_pci_tbl[idx].vendor; idx++) { while ((pdev1 = pci_get_subsys(tx_ctl_pci_tbl[idx].vendor, tx_ctl_pci_tbl[idx].device, tx_ctl_pci_tbl[idx].subvendor, tx_ctl_pci_tbl[idx].subdevice, pdev1))) { - bpctl_dev_arr[idx_dev].pdev = pdev1; - - mmio_start = pci_resource_start(pdev1, 0); - mmio_len = pci_resource_len(pdev1, 0); - - bpctl_dev_arr[idx_dev].desc = - dev_desc[tx_ctl_pci_tbl[idx].index].name; - bpctl_dev_arr[idx_dev].name = - tx_ctl_pci_tbl[idx].bp_name; - bpctl_dev_arr[idx_dev].device = - tx_ctl_pci_tbl[idx].device; - bpctl_dev_arr[idx_dev].vendor = - tx_ctl_pci_tbl[idx].vendor; - bpctl_dev_arr[idx_dev].subdevice = - tx_ctl_pci_tbl[idx].subdevice; - bpctl_dev_arr[idx_dev].subvendor = - tx_ctl_pci_tbl[idx].subvendor; - /* bpctl_dev_arr[idx_dev].pdev=pdev1; */ - bpctl_dev_arr[idx_dev].func = PCI_FUNC(pdev1->devfn); - bpctl_dev_arr[idx_dev].slot = PCI_SLOT(pdev1->devfn); - bpctl_dev_arr[idx_dev].bus = pdev1->bus->number; - bpctl_dev_arr[idx_dev].mem_map = - (unsigned long)ioremap(mmio_start, mmio_len); -#ifdef BP_SYNC_FLAG - spin_lock_init(&bpctl_dev_arr[idx_dev].bypass_wr_lock); -#endif - if (BP10G9_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) - bpctl_dev_arr[idx_dev].bp_10g9 = 1; - if (BP10G_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) - bpctl_dev_arr[idx_dev].bp_10g = 1; - if (PEG540_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) { - - bpctl_dev_arr[idx_dev].bp_540 = 1; - } - if (PEGF5_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) - bpctl_dev_arr[idx_dev].bp_fiber5 = 1; - if (PEG80_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) - bpctl_dev_arr[idx_dev].bp_i80 = 1; - if (PEGF80_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) - bpctl_dev_arr[idx_dev].bp_i80 = 1; - if ((bpctl_dev_arr[idx_dev].subdevice & 0xa00) == 0xa00) - bpctl_dev_arr[idx_dev].bp_i80 = 1; - if (BP10GB_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) { - if (bpctl_dev_arr[idx_dev].ifindex == 0) { - unregister_chrdev(major_num, - DEVICE_NAME); - printk - ("Please load network driver for %s adapter!\n", - bpctl_dev_arr[idx_dev].name); - return -1; - } - - if (bpctl_dev_arr[idx_dev].ndev) { - if (! - (bpctl_dev_arr[idx_dev].ndev-> - flags & IFF_UP)) { - if (! - (bpctl_dev_arr[idx_dev]. - ndev->flags & IFF_UP)) { - unregister_chrdev - (major_num, - DEVICE_NAME); - printk - ("Please bring up network interfaces for %s adapter!\n", - bpctl_dev_arr - [idx_dev].name); - return -1; - } - - } - } - bpctl_dev_arr[idx_dev].bp_10gb = 1; - } - - if (!bpctl_dev_arr[idx_dev].bp_10g9) { - - if (is_bypass_fn(&bpctl_dev_arr[idx_dev])) { - printk(KERN_INFO "%s found, ", - bpctl_dev_arr[idx_dev].name); - if ((OLD_IF_SERIES - (bpctl_dev_arr[idx_dev].subdevice)) - || - (INTEL_IF_SERIES - (bpctl_dev_arr[idx_dev]. - subdevice))) - bpctl_dev_arr[idx_dev]. - bp_fw_ver = 0xff; - else - bpctl_dev_arr[idx_dev]. - bp_fw_ver = - bypass_fw_ver(&bpctl_dev_arr - [idx_dev]); - if ((bpctl_dev_arr[idx_dev].bp_10gb == - 1) - && (bpctl_dev_arr[idx_dev]. - bp_fw_ver == 0xff)) { - int cnt = 100; - while (cnt--) { - iounmap((void - *) - (bpctl_dev_arr - [idx_dev]. - mem_map)); - mmio_start = - pci_resource_start - (pdev1, 0); - mmio_len = - pci_resource_len - (pdev1, 0); - - bpctl_dev_arr[idx_dev]. - mem_map = - (unsigned long) - ioremap(mmio_start, - mmio_len); - - bpctl_dev_arr[idx_dev]. - bp_fw_ver = - bypass_fw_ver - (&bpctl_dev_arr - [idx_dev]); - if (bpctl_dev_arr - [idx_dev]. - bp_fw_ver == 0xa8) - break; - - } - } - /* bpctl_dev_arr[idx_dev].bp_fw_ver=0xa8; */ - printk("firmware version: 0x%x\n", - bpctl_dev_arr[idx_dev]. - bp_fw_ver); - } - bpctl_dev_arr[idx_dev].wdt_status = - WDT_STATUS_UNKNOWN; - bpctl_dev_arr[idx_dev].reset_time = 0; - atomic_set(&bpctl_dev_arr[idx_dev].wdt_busy, 0); - bpctl_dev_arr[idx_dev].bp_status_un = 1; - - bypass_caps_init(&bpctl_dev_arr[idx_dev]); - - init_bypass_wd_auto(&bpctl_dev_arr[idx_dev]); - init_bypass_tpl_auto(&bpctl_dev_arr[idx_dev]); - if (NOKIA_SERIES - (bpctl_dev_arr[idx_dev].subdevice)) - reset_cont(&bpctl_dev_arr[idx_dev]); - } -#ifdef BP_SELF_TEST - if ((bpctl_dev_arr[idx_dev].bp_tx_data = - kmalloc(BPTEST_DATA_LEN, GFP_KERNEL))) { - - memset(bpctl_dev_arr[idx_dev].bp_tx_data, 0x0, - BPTEST_DATA_LEN); - - memset(bpctl_dev_arr[idx_dev].bp_tx_data, 0xff, - 6); - memset(bpctl_dev_arr[idx_dev].bp_tx_data + 6, - 0x0, 1); - memset(bpctl_dev_arr[idx_dev].bp_tx_data + 7, - 0xaa, 5); - - *(__be16 *) (bpctl_dev_arr[idx_dev].bp_tx_data + - 12) = htons(ETH_P_BPTEST); - - } else - printk("bp_ctl: Memory allocation error!\n"); -#endif - idx_dev++; - + if (init_one(dev, &tx_ctl_pci_tbl[idx], pdev1) < 0) + return -1; + dev++; } } if_scan_init(); @@ -6884,33 +6831,27 @@ static int __init bypass_init_module(void) { bpctl_dev_t *pbpctl_dev_c = NULL; - for (idx_dev = 0; - ((bpctl_dev_arr[idx_dev].pdev != NULL) - && (idx_dev < device_num)); idx_dev++) { - if (bpctl_dev_arr[idx_dev].bp_10g9) { - pbpctl_dev_c = - get_status_port_fn(&bpctl_dev_arr[idx_dev]); - if (is_bypass_fn(&bpctl_dev_arr[idx_dev])) { + for (idx_dev = 0, dev = bpctl_dev_arr; + idx_dev < device_num && dev->pdev; + idx_dev++, dev++) { + if (dev->bp_10g9) { + pbpctl_dev_c = get_status_port_fn(dev); + if (is_bypass_fn(dev)) { printk(KERN_INFO "%s found, ", - bpctl_dev_arr[idx_dev].name); - bpctl_dev_arr[idx_dev].bp_fw_ver = - bypass_fw_ver(&bpctl_dev_arr - [idx_dev]); + dev->name); + dev->bp_fw_ver = bypass_fw_ver(dev); printk("firmware version: 0x%x\n", - bpctl_dev_arr[idx_dev]. - bp_fw_ver); - + dev->bp_fw_ver); } - bpctl_dev_arr[idx_dev].wdt_status = - WDT_STATUS_UNKNOWN; - bpctl_dev_arr[idx_dev].reset_time = 0; - atomic_set(&bpctl_dev_arr[idx_dev].wdt_busy, 0); - bpctl_dev_arr[idx_dev].bp_status_un = 1; + dev->wdt_status = WDT_STATUS_UNKNOWN; + dev->reset_time = 0; + atomic_set(&dev->wdt_busy, 0); + dev->bp_status_un = 1; - bypass_caps_init(&bpctl_dev_arr[idx_dev]); + bypass_caps_init(dev); - init_bypass_wd_auto(&bpctl_dev_arr[idx_dev]); - init_bypass_tpl_auto(&bpctl_dev_arr[idx_dev]); + init_bypass_wd_auto(dev); + init_bypass_tpl_auto(dev); } |