hw/mthca/mthca_reset.c

41 int mthca_reset(struct mthca_dev *mdev)
69 	if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) {
73 		while ((bridge = pci_get_device(mdev->pdev->vendor,
74 						mdev->pdev->device + 2,
77 			    bridge->subordinate == mdev->pdev->bus) {
78 				mthca_dbg(mdev, "Found bridge: %s\n",
90 			mthca_warn(mdev, "No bridge found for %s\n",
91 				  pci_name(mdev->pdev));
94 		mthca_warn(mdev, "Reset on PCI-X is not supported.\n");
104 		mthca_err(mdev, "Couldn't allocate memory to save HCA "
112 		if (pci_read_config_dword(mdev->pdev, i * 4, hca_header + i)) {
114 			mthca_err(mdev, "Couldn't save HCA "
120 	hca_pcix_cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
121 	hca_pcie_cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
128 			mthca_err(mdev, "Couldn't allocate memory to save HCA "
138 				mthca_err(mdev, "Couldn't save HCA bridge "
146 				mthca_err(mdev, "Couldn't locate HCA bridge "
155 		void __iomem *reset = ioremap(pci_resource_start(mdev->pdev, 0) +
160 			mthca_err(mdev, "Couldn't map HCA reset register, "
178 			if (pci_read_config_dword(bridge ? bridge : mdev->pdev, 0, &v)) {
180 				mthca_err(mdev, "Couldn't access HCA after reset, "
192 		mthca_err(mdev, "PCI device did not come back after reset, "
203 			mthca_err(mdev, "Couldn't restore HCA bridge Upstream "
210 			mthca_err(mdev, "Couldn't restore HCA bridge Downstream "
224 				mthca_err(mdev, "Couldn't restore HCA bridge reg %x, "
233 			mthca_err(mdev, "Couldn't restore HCA bridge COMMAND, "
240 		if (pci_write_config_dword(mdev->pdev, hca_pcix_cap,
243 			mthca_err(mdev, "Couldn't restore HCA PCI-X "
251 		if (pci_write_config_word(mdev->pdev, hca_pcie_cap + PCI_EXP_DEVCTL,
254 			mthca_err(mdev, "Couldn't restore HCA PCI Express "
259 		if (pci_write_config_word(mdev->pdev, hca_pcie_cap + PCI_EXP_LNKCTL,
262 			mthca_err(mdev, "Couldn't restore HCA PCI Express "
272 		if (pci_write_config_dword(mdev->pdev, i * 4, hca_header[i])) {
274 			mthca_err(mdev, "Couldn't restore HCA reg %x, "
280 	if (pci_write_config_dword(mdev->pdev, PCI_COMMAND,
283 		mthca_err(mdev, "Couldn't restore HCA COMMAND, "