1b5bf0fc2SPatrick Venture /* 2b5bf0fc2SPatrick Venture * Copyright 2019 Google Inc. 3b5bf0fc2SPatrick Venture * 4b5bf0fc2SPatrick Venture * Licensed under the Apache License, Version 2.0 (the "License"); 5b5bf0fc2SPatrick Venture * you may not use this file except in compliance with the License. 6b5bf0fc2SPatrick Venture * You may obtain a copy of the License at 7b5bf0fc2SPatrick Venture * 8b5bf0fc2SPatrick Venture * http://www.apache.org/licenses/LICENSE-2.0 9b5bf0fc2SPatrick Venture * 10b5bf0fc2SPatrick Venture * Unless required by applicable law or agreed to in writing, software 11b5bf0fc2SPatrick Venture * distributed under the License is distributed on an "AS IS" BASIS, 12b5bf0fc2SPatrick Venture * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b5bf0fc2SPatrick Venture * See the License for the specific language governing permissions and 14b5bf0fc2SPatrick Venture * limitations under the License. 15b5bf0fc2SPatrick Venture */ 16b5bf0fc2SPatrick Venture 17b5bf0fc2SPatrick Venture #include "p2a.hpp" 18b5bf0fc2SPatrick Venture 19*18bbe3c6SPatrick Venture #include "firmware_handler.hpp" 20b5bf0fc2SPatrick Venture #include "pci.hpp" 21c73dce91SPatrick Venture #include "pci_handler.hpp" 22c73dce91SPatrick Venture 23c73dce91SPatrick Venture #include <cstring> 24*18bbe3c6SPatrick Venture #include <ipmiblob/blob_errors.hpp> 25b5bf0fc2SPatrick Venture 26b5bf0fc2SPatrick Venture namespace host_tool 27b5bf0fc2SPatrick Venture { 28b5bf0fc2SPatrick Venture 29b5bf0fc2SPatrick Venture bool P2aDataHandler::sendContents(const std::string& input, 30b5bf0fc2SPatrick Venture std::uint16_t session) 31b5bf0fc2SPatrick Venture { 3224141611SPatrick Venture PciDevice result; 33b5bf0fc2SPatrick Venture PciUtilImpl pci; 34b5bf0fc2SPatrick Venture PciFilter filter; 3536bb4670SPatrick Venture bool found = false; 36*18bbe3c6SPatrick Venture pciaddr_t bar1; 37b5bf0fc2SPatrick Venture 38b5bf0fc2SPatrick Venture filter.vid = aspeedVendorId; 39b5bf0fc2SPatrick Venture filter.did = aspeedDeviceId; 40b5bf0fc2SPatrick Venture 4124141611SPatrick Venture /* Find the ASPEED PCI device entry we want. */ 42b5bf0fc2SPatrick Venture auto output = pci.getPciDevices(filter); 43b5bf0fc2SPatrick Venture for (const auto& d : output) 44b5bf0fc2SPatrick Venture { 4524141611SPatrick Venture std::fprintf(stderr, "[0x%x 0x%x] ", d.vid, d.did); 4624141611SPatrick Venture 4724141611SPatrick Venture /* Verify it's a memory-based bar -- we want bar1. */ 48*18bbe3c6SPatrick Venture bar1 = d.bars[1]; 4924141611SPatrick Venture if ((bar1 & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_IO) 5024141611SPatrick Venture { 5124141611SPatrick Venture /* We want it to not be IO-based access. */ 5224141611SPatrick Venture continue; 53b5bf0fc2SPatrick Venture } 54b5bf0fc2SPatrick Venture 55*18bbe3c6SPatrick Venture /* For now capture the entire device even if we're only using BAR1 */ 5624141611SPatrick Venture result = d; 5736bb4670SPatrick Venture found = true; 5836bb4670SPatrick Venture break; 5924141611SPatrick Venture } 6036bb4670SPatrick Venture 6136bb4670SPatrick Venture if (!found) 6236bb4670SPatrick Venture { 6336bb4670SPatrick Venture return false; 6436bb4670SPatrick Venture } 6536bb4670SPatrick Venture 6624141611SPatrick Venture std::fprintf(stderr, "\n"); 6724141611SPatrick Venture 6824141611SPatrick Venture /* We sent the open command before this, so the window should be open and 6924141611SPatrick Venture * the bridge enabled. 7024141611SPatrick Venture */ 7124141611SPatrick Venture std::uint32_t value; 72*18bbe3c6SPatrick Venture if (!io->read(bar1 | aspeedP2aConfig, sizeof(value), &value)) 7324141611SPatrick Venture { 7424141611SPatrick Venture if (0 == (value & p2ABridgeEnabled)) 7524141611SPatrick Venture { 7624141611SPatrick Venture std::fprintf(stderr, "Bridge not enabled.\n"); 7724141611SPatrick Venture return false; 7824141611SPatrick Venture } 7924141611SPatrick Venture } 8024141611SPatrick Venture 8124141611SPatrick Venture std::fprintf(stderr, "The bridge is enabled!\n"); 8224141611SPatrick Venture 8324141611SPatrick Venture /* Read the configuration via blobs metadata (stat). */ 84c73dce91SPatrick Venture ipmiblob::StatResponse stat = blob->getStat(session); 85c73dce91SPatrick Venture if (stat.metadata.size() != sizeof(blobs::PciConfigResponse)) 86c73dce91SPatrick Venture { 87c73dce91SPatrick Venture std::fprintf(stderr, "Didn't receive expected size of metadata for " 88c73dce91SPatrick Venture "PCI Configuration response\n"); 89c73dce91SPatrick Venture return false; 90c73dce91SPatrick Venture } 91c73dce91SPatrick Venture 92c73dce91SPatrick Venture blobs::PciConfigResponse pciResp; 93c73dce91SPatrick Venture std::memcpy(&pciResp, stat.metadata.data(), sizeof(pciResp)); 94c73dce91SPatrick Venture std::fprintf(stderr, "Received address: 0x%x\n", pciResp.address); 9524141611SPatrick Venture 9624141611SPatrick Venture /* Configure the mmio to point there. */ 97*18bbe3c6SPatrick Venture if (!io->write(bar1 | aspeedP2aBridge, sizeof(pciResp.address), 98*18bbe3c6SPatrick Venture &pciResp.address)) 99*18bbe3c6SPatrick Venture { 10024141611SPatrick Venture // Failed to set it up, so fall back. 10124141611SPatrick Venture std::fprintf(stderr, "Failed to update the bridge address\n"); 10224141611SPatrick Venture return false; 10324141611SPatrick Venture } 10424141611SPatrick Venture 105*18bbe3c6SPatrick Venture /* For data blocks in 64kb, stage data, and send blob write command. */ 106*18bbe3c6SPatrick Venture int inputFd = sys->open(input.c_str(), 0); 107*18bbe3c6SPatrick Venture if (inputFd < 0) 108*18bbe3c6SPatrick Venture { 109b5bf0fc2SPatrick Venture return false; 110b5bf0fc2SPatrick Venture } 111b5bf0fc2SPatrick Venture 112*18bbe3c6SPatrick Venture int bytesRead = 0; 113*18bbe3c6SPatrick Venture std::uint32_t offset = 0; 114*18bbe3c6SPatrick Venture const std::uint32_t p2aLength = aspeedP2aOffset; 115*18bbe3c6SPatrick Venture 116*18bbe3c6SPatrick Venture auto readBuffer = std::make_unique<std::uint8_t[]>(p2aLength); 117*18bbe3c6SPatrick Venture if (nullptr == readBuffer) 118*18bbe3c6SPatrick Venture { 119*18bbe3c6SPatrick Venture std::fprintf(stderr, "Unable to allocate memory for read buffer.\n"); 120*18bbe3c6SPatrick Venture return false; 121*18bbe3c6SPatrick Venture } 122*18bbe3c6SPatrick Venture 123*18bbe3c6SPatrick Venture try 124*18bbe3c6SPatrick Venture { 125*18bbe3c6SPatrick Venture do 126*18bbe3c6SPatrick Venture { 127*18bbe3c6SPatrick Venture bytesRead = sys->read(inputFd, readBuffer.get(), p2aLength); 128*18bbe3c6SPatrick Venture if (bytesRead > 0) 129*18bbe3c6SPatrick Venture { 130*18bbe3c6SPatrick Venture /* TODO: Will likely need to store an rv somewhere to know when 131*18bbe3c6SPatrick Venture * we're exiting from failure. 132*18bbe3c6SPatrick Venture */ 133*18bbe3c6SPatrick Venture if (!io->write(bar1 | aspeedP2aOffset, bytesRead, 134*18bbe3c6SPatrick Venture readBuffer.get())) 135*18bbe3c6SPatrick Venture { 136*18bbe3c6SPatrick Venture std::fprintf(stderr, 137*18bbe3c6SPatrick Venture "Failed to write to region in memory!\n"); 138*18bbe3c6SPatrick Venture break; 139*18bbe3c6SPatrick Venture } 140*18bbe3c6SPatrick Venture 141*18bbe3c6SPatrick Venture /* Ok, so the data is staged, now send the blob write with the 142*18bbe3c6SPatrick Venture * details. 143*18bbe3c6SPatrick Venture */ 144*18bbe3c6SPatrick Venture struct blobs::ExtChunkHdr chunk; 145*18bbe3c6SPatrick Venture chunk.length = bytesRead; 146*18bbe3c6SPatrick Venture std::vector<std::uint8_t> chunkBytes(sizeof(chunk)); 147*18bbe3c6SPatrick Venture std::memcpy(chunkBytes.data(), &chunk, sizeof(chunk)); 148*18bbe3c6SPatrick Venture 149*18bbe3c6SPatrick Venture /* This doesn't return anything on success. */ 150*18bbe3c6SPatrick Venture blob->writeBytes(session, offset, chunkBytes); 151*18bbe3c6SPatrick Venture offset += bytesRead; 152*18bbe3c6SPatrick Venture } 153*18bbe3c6SPatrick Venture } while (bytesRead > 0); 154*18bbe3c6SPatrick Venture } 155*18bbe3c6SPatrick Venture catch (const ipmiblob::BlobException& b) 156*18bbe3c6SPatrick Venture { 157*18bbe3c6SPatrick Venture sys->close(inputFd); 158*18bbe3c6SPatrick Venture return false; 159*18bbe3c6SPatrick Venture } 160*18bbe3c6SPatrick Venture 161*18bbe3c6SPatrick Venture sys->close(inputFd); 162*18bbe3c6SPatrick Venture return true; 163*18bbe3c6SPatrick Venture } 164*18bbe3c6SPatrick Venture 165b5bf0fc2SPatrick Venture } // namespace host_tool 166