We're not talking about allocating the pages themselves.
Here's an example (ignoring errors):
page_list = ib_alloc_fast_reg_page_list(device, 1);
v = get_free_page(GFP_KERNEL);
page_list->page_list[0] = ib_dma_map_single(device, v, PAGE_SIZE,
DMA_TO_DEVICE|DMA_FROM_DEVICE);
wr.opcode = IB_WR_FAST_REG_MR;
wr.next = NULL;
wr.send_flags = 0;
wr.wr_id = 0xdeadbeef;
wr.wr.fast_reg.mr = mr;
wr.wr.fast_reg.page_list = page_list;
wr.wr.fast_reg.page_size = PAGE_SIZE;
wr.wr.fast_reg.page_list_len = 1;
wr.wr.fast_reg.first_byte_offset = 0;
wr.wr.fast_reg.iova_start = (u64)v;
wr.wr.fast_reg.length = PAGE_SIZE;
wr.wr.fast_reg.access_flags = IB_ACCESS_LOCAL_WRITE |
IB_ACCESS_REMOTE_READ |
IB_ACCESS_REMOTE_WRITE;
ib_post_send(qp, &wr, &bad_wr);
OK. Thanks for clarifying. This wasn't clear to me from the
original description but I understand now.
Perhaps ib_alloc_fast_reg_page_list() isn't clear. Maybe
ib_alloc_fast_reg_page_list_mem() is better? That's getting too long
for my taste, but if others thing it helps... I'll change it.
Steve.
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