rdma_for_each_block(9)

💖 rdma_for_each_block(9) 💖

okay bestie, we’re in the Kernel API Manual and this page is all about that loop life: rdma_for_each_block is here to iterate over contiguous memory blocks of the sg list. no cap, it’s giving “walk the sg list, block by block” energy 💅

🌸 NAME 🌸

rdma_for_each_block — iterate over contiguous memory blocks of the sg list.

✨ SYNOPSIS ✨

the signature, exactly as it’s written:

rdma_for_each_block (sglist , biter , nents , pgsz );

🎀 ARGUMENTS 🎀

• sglist — the sglist you’re iterating over, bestie.
• biter — the block iterator holding the memory block.
• nents — the maximum number of sg entries to iterate over. it’s the cap, periodt.
• pgsz — the best HW supported page size to use. yes, HW, as in hardware 🫶

💅 DESCRIPTION 💅

callers may use rdma_block_iter_dma_address to get each block’s aligned DMA address. that’s the note, and it’s honestly iconic for anyone who needs that DMA-address moment ✨

🦋 SEE ALSO 🦋

• Kernel file ./include/rdma/iter.h
• rdma_block_iter_dma_address(9)
• rdma_umem_for_each_dma_block(9)

mwah 💋 this page is rdma_for_each_block(9), from ./include/rdma, dated October 2026. go be iconic with your sg list 🫶✨