diff options
| author | Luca Coelho <luciano.coelho@intel.com> | 2019-05-15 15:09:24 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2019-06-29 10:09:41 +0300 |
| commit | c4d3f2ee66a8dd5e2f5876488a1fa876484617ca (patch) | |
| tree | cede3831748c89604c28d1abb5474218184eda59 /drivers/net/wireless | |
| parent | ac70499ee97231a418dc1a4d6c9dc102e8f64631 (diff) | |
| download | linux-c4d3f2ee66a8dd5e2f5876488a1fa876484617ca.tar.bz2 | |
iwlwifi: pcie: increase the size of PCI dumps
Currently we dump only the first 64 bytes of the PCI config space,
which leaves out some important things, such as the base address
registers.
Increase it to 352 for the PCI device and to 524 for the rootport to
make sure we include everything we need.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c index ce59d8498337..b81363328607 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -90,8 +90,10 @@ void iwl_trans_pcie_dump_regs(struct iwl_trans *trans) { -#define PCI_DUMP_SIZE 64 -#define PREFIX_LEN 32 +#define PCI_DUMP_SIZE 352 +#define PCI_MEM_DUMP_SIZE 64 +#define PCI_PARENT_DUMP_SIZE 524 +#define PREFIX_LEN 32 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct pci_dev *pdev = trans_pcie->pci_dev; u32 i, pos, alloc_size, *ptr, *buf; @@ -102,11 +104,15 @@ void iwl_trans_pcie_dump_regs(struct iwl_trans *trans) /* Should be a multiple of 4 */ BUILD_BUG_ON(PCI_DUMP_SIZE > 4096 || PCI_DUMP_SIZE & 0x3); + BUILD_BUG_ON(PCI_MEM_DUMP_SIZE > 4096 || PCI_MEM_DUMP_SIZE & 0x3); + BUILD_BUG_ON(PCI_PARENT_DUMP_SIZE > 4096 || PCI_PARENT_DUMP_SIZE & 0x3); + /* Alloc a max size buffer */ - if (PCI_ERR_ROOT_ERR_SRC + 4 > PCI_DUMP_SIZE) - alloc_size = PCI_ERR_ROOT_ERR_SRC + 4 + PREFIX_LEN; - else - alloc_size = PCI_DUMP_SIZE + PREFIX_LEN; + alloc_size = PCI_ERR_ROOT_ERR_SRC + 4 + PREFIX_LEN; + alloc_size = max_t(u32, alloc_size, PCI_DUMP_SIZE + PREFIX_LEN); + alloc_size = max_t(u32, alloc_size, PCI_MEM_DUMP_SIZE + PREFIX_LEN); + alloc_size = max_t(u32, alloc_size, PCI_PARENT_DUMP_SIZE + PREFIX_LEN); + buf = kmalloc(alloc_size, GFP_ATOMIC); if (!buf) return; @@ -123,7 +129,7 @@ void iwl_trans_pcie_dump_regs(struct iwl_trans *trans) print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0); IWL_ERR(trans, "iwlwifi device memory mapped registers:\n"); - for (i = 0, ptr = buf; i < PCI_DUMP_SIZE; i += 4, ptr++) + for (i = 0, ptr = buf; i < PCI_MEM_DUMP_SIZE; i += 4, ptr++) *ptr = iwl_read32(trans, i); print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0); @@ -146,7 +152,7 @@ void iwl_trans_pcie_dump_regs(struct iwl_trans *trans) IWL_ERR(trans, "iwlwifi parent port (%s) config registers:\n", pci_name(pdev)); - for (i = 0, ptr = buf; i < PCI_DUMP_SIZE; i += 4, ptr++) + for (i = 0, ptr = buf; i < PCI_PARENT_DUMP_SIZE; i += 4, ptr++) if (pci_read_config_dword(pdev, i, ptr)) goto err_read; print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0); |