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[Denali] Update the read many request to take a sector count as well.

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This greatly reduces the size of the message (we had surpassed the 1
page - 4KiB message limit with the previous method).
This commit is contained in:
Drew Galbraith 2023-11-22 12:17:56 -08:00
parent 9f0e87b51d
commit 41bf78cf98
5 changed files with 71 additions and 22 deletions
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15
sys/victoriafalls/fs/ext2/ext2_block_reader.cpp
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@ -78,14 +78,19 @@ glcr::ErrorOr<OwnedMemoryRegion> Ext2BlockReader::ReadBlocks(
const glcr::Vector<uint64_t>& block_list) {
ReadManyRequest req;
req.set_device_id(device_id_);
// FIXME: We should have better ergonomics for setting a repeated field in
// Yunq.
for (uint64_t i = 0; i < block_list.size(); i++) {
uint64_t sector = lba_offset_ + block_list.at(i) * SectorsPerBlock();
for (uint64_t j = 0; j < SectorsPerBlock(); j++) {
req.add_lba(sector + j);
uint64_t curr_start = lba_offset_ + block_list.at(i) * SectorsPerBlock();
uint64_t curr_run_len = 1;
while ((i + 1) < block_list.size() &&
block_list.at(i + 1) == block_list.at(i) + 1) {
i++;
curr_run_len++;
}
req.add_lba(curr_start);
req.add_sector_cnt(curr_run_len * SectorsPerBlock());
dbgln("Read {x}, {x}", curr_start, curr_run_len * SectorsPerBlock());
}
dbgln("Read many: {x}", req.lba().size());
ReadResponse resp;
RET_ERR(denali_.ReadMany(req, resp));
return OwnedMemoryRegion::FromCapability(resp.memory());