Hi Jason, I love your patch! Perhaps something to improve: [auto build test WARNING on 78b26a335310a097d6b22581b706050db42f196c] url: https://github.com/intel-lab-lkp/linux/commits/Jason-Gunthorpe/RDMA-Add-ib_virt_dma_to_page/20230330-222848 base: 78b26a335310a097d6b22581b706050db42f196c patch link: https://lore.kernel.org/r/0-v1-789ba72d2950%2B2e-ib_virt_page_jgg%40nvidia.com patch subject: [PATCH] RDMA: Add ib_virt_dma_to_page() config: m68k-randconfig-r014-20230329 (https://download.01.org/0day-ci/archive/20230331/202303310254.tmWyQaZG-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/a10308d393288ba62a1aa7c24a7f6df484c2892a git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Jason-Gunthorpe/RDMA-Add-ib_virt_dma_to_page/20230330-222848 git checkout a10308d393288ba62a1aa7c24a7f6df484c2892a # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/infiniband/sw/siw/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303310254.tmWyQaZG-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/infiniband/sw/siw/siw_qp_tx.c: In function 'siw_tx_hdt': >> drivers/infiniband/sw/siw/siw_qp_tx.c:546:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 546 | (void *)va, | ^ vim +546 drivers/infiniband/sw/siw/siw_qp_tx.c b9be6f18cf9ed0 Bernard Metzler 2019-06-20 426 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 427 /* b9be6f18cf9ed0 Bernard Metzler 2019-06-20 428 * Write out iov referencing hdr, data and trailer of current FPDU. b9be6f18cf9ed0 Bernard Metzler 2019-06-20 429 * Update transmit state dependent on write return status b9be6f18cf9ed0 Bernard Metzler 2019-06-20 430 */ b9be6f18cf9ed0 Bernard Metzler 2019-06-20 431 static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s) b9be6f18cf9ed0 Bernard Metzler 2019-06-20 432 { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 433 struct siw_wqe *wqe = &c_tx->wqe_active; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 434 struct siw_sge *sge = &wqe->sqe.sge[c_tx->sge_idx]; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 435 struct kvec iov[MAX_ARRAY]; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 436 struct page *page_array[MAX_ARRAY]; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 437 struct msghdr msg = { .msg_flags = MSG_DONTWAIT | MSG_EOR }; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 438 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 439 int seg = 0, do_crc = c_tx->do_crc, is_kva = 0, rv; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 440 unsigned int data_len = c_tx->bytes_unsent, hdr_len = 0, trl_len = 0, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 441 sge_off = c_tx->sge_off, sge_idx = c_tx->sge_idx, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 442 pbl_idx = c_tx->pbl_idx; fab4f97e1fe33c Bernard Metzler 2019-08-22 443 unsigned long kmap_mask = 0L; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 444 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 445 if (c_tx->state == SIW_SEND_HDR) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 446 if (c_tx->use_sendpage) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 447 rv = siw_tx_ctrl(c_tx, s, MSG_DONTWAIT | MSG_MORE); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 448 if (rv) b9be6f18cf9ed0 Bernard Metzler 2019-06-20 449 goto done; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 450 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 451 c_tx->state = SIW_SEND_DATA; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 452 } else { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 453 iov[0].iov_base = b9be6f18cf9ed0 Bernard Metzler 2019-06-20 454 (char *)&c_tx->pkt.ctrl + c_tx->ctrl_sent; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 455 iov[0].iov_len = hdr_len = b9be6f18cf9ed0 Bernard Metzler 2019-06-20 456 c_tx->ctrl_len - c_tx->ctrl_sent; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 457 seg = 1; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 458 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 459 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 460 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 461 wqe->processed += data_len; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 462 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 463 while (data_len) { /* walk the list of SGE's */ b9be6f18cf9ed0 Bernard Metzler 2019-06-20 464 unsigned int sge_len = min(sge->length - sge_off, data_len); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 465 unsigned int fp_off = (sge->laddr + sge_off) & ~PAGE_MASK; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 466 struct siw_mem *mem; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 467 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 468 if (!(tx_flags(wqe) & SIW_WQE_INLINE)) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 469 mem = wqe->mem[sge_idx]; fab4f97e1fe33c Bernard Metzler 2019-08-22 470 is_kva = mem->mem_obj == NULL ? 1 : 0; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 471 } else { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 472 is_kva = 1; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 473 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 474 if (is_kva && !c_tx->use_sendpage) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 475 /* b9be6f18cf9ed0 Bernard Metzler 2019-06-20 476 * tx from kernel virtual address: either inline data b9be6f18cf9ed0 Bernard Metzler 2019-06-20 477 * or memory region with assigned kernel buffer b9be6f18cf9ed0 Bernard Metzler 2019-06-20 478 */ c536277e0db1ad Bernard Metzler 2019-08-22 479 iov[seg].iov_base = c536277e0db1ad Bernard Metzler 2019-08-22 480 (void *)(uintptr_t)(sge->laddr + sge_off); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 481 iov[seg].iov_len = sge_len; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 482 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 483 if (do_crc) b9be6f18cf9ed0 Bernard Metzler 2019-06-20 484 crypto_shash_update(c_tx->mpa_crc_hd, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 485 iov[seg].iov_base, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 486 sge_len); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 487 sge_off += sge_len; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 488 data_len -= sge_len; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 489 seg++; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 490 goto sge_done; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 491 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 492 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 493 while (sge_len) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 494 size_t plen = min((int)PAGE_SIZE - fp_off, sge_len); 1ec50dd12a4347 Ira Weiny 2021-06-21 495 void *kaddr; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 496 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 497 if (!is_kva) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 498 struct page *p; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 499 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 500 if (mem->is_pbl) b9be6f18cf9ed0 Bernard Metzler 2019-06-20 501 p = siw_get_pblpage( b9be6f18cf9ed0 Bernard Metzler 2019-06-20 502 mem, sge->laddr + sge_off, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 503 &pbl_idx); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 504 else b9be6f18cf9ed0 Bernard Metzler 2019-06-20 505 p = siw_get_upage(mem->umem, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 506 sge->laddr + sge_off); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 507 if (unlikely(!p)) { 9d649d594f3965 Ira Weiny 2021-06-24 508 siw_unmap_pages(iov, kmap_mask, seg); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 509 wqe->processed -= c_tx->bytes_unsent; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 510 rv = -EFAULT; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 511 goto done_crc; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 512 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 513 page_array[seg] = p; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 514 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 515 if (!c_tx->use_sendpage) { 9d649d594f3965 Ira Weiny 2021-06-24 516 void *kaddr = kmap_local_page(p); fab4f97e1fe33c Bernard Metzler 2019-08-22 517 fab4f97e1fe33c Bernard Metzler 2019-08-22 518 /* Remember for later kunmap() */ fab4f97e1fe33c Bernard Metzler 2019-08-22 519 kmap_mask |= BIT(seg); 9d649d594f3965 Ira Weiny 2021-06-24 520 iov[seg].iov_base = kaddr + fp_off; 9d649d594f3965 Ira Weiny 2021-06-24 521 iov[seg].iov_len = plen; fab4f97e1fe33c Bernard Metzler 2019-08-22 522 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 523 if (do_crc) b9be6f18cf9ed0 Bernard Metzler 2019-06-20 524 crypto_shash_update( b9be6f18cf9ed0 Bernard Metzler 2019-06-20 525 c_tx->mpa_crc_hd, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 526 iov[seg].iov_base, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 527 plen); 0404bd629fd4d0 Bernard Metzler 2019-09-09 528 } else if (do_crc) { 1ec50dd12a4347 Ira Weiny 2021-06-21 529 kaddr = kmap_local_page(p); 0404bd629fd4d0 Bernard Metzler 2019-09-09 530 crypto_shash_update(c_tx->mpa_crc_hd, 1ec50dd12a4347 Ira Weiny 2021-06-21 531 kaddr + fp_off, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 532 plen); 1ec50dd12a4347 Ira Weiny 2021-06-21 533 kunmap_local(kaddr); 0404bd629fd4d0 Bernard Metzler 2019-09-09 534 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 535 } else { 0d1b756acf60da Linus Walleij 2022-09-02 536 /* 0d1b756acf60da Linus Walleij 2022-09-02 537 * Cast to an uintptr_t to preserve all 64 bits 0d1b756acf60da Linus Walleij 2022-09-02 538 * in sge->laddr. 0d1b756acf60da Linus Walleij 2022-09-02 539 */ a10308d393288b Jason Gunthorpe 2023-03-30 540 u64 va = (uintptr_t)(sge->laddr + sge_off); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 541 a10308d393288b Jason Gunthorpe 2023-03-30 542 page_array[seg] = ib_virt_dma_to_page(va); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 543 if (do_crc) b9be6f18cf9ed0 Bernard Metzler 2019-06-20 544 crypto_shash_update( b9be6f18cf9ed0 Bernard Metzler 2019-06-20 545 c_tx->mpa_crc_hd, 0d1b756acf60da Linus Walleij 2022-09-02 @546 (void *)va, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 547 plen); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 548 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 549 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 550 sge_len -= plen; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 551 sge_off += plen; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 552 data_len -= plen; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 553 fp_off = 0; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 554 271bfcfb83a9f7 Daniil Dulov 2023-02-27 555 if (++seg >= (int)MAX_ARRAY) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 556 siw_dbg_qp(tx_qp(c_tx), "to many fragments\n"); 9d649d594f3965 Ira Weiny 2021-06-24 557 siw_unmap_pages(iov, kmap_mask, seg-1); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 558 wqe->processed -= c_tx->bytes_unsent; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 559 rv = -EMSGSIZE; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 560 goto done_crc; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 561 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 562 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 563 sge_done: b9be6f18cf9ed0 Bernard Metzler 2019-06-20 564 /* Update SGE variables at end of SGE */ b9be6f18cf9ed0 Bernard Metzler 2019-06-20 565 if (sge_off == sge->length && b9be6f18cf9ed0 Bernard Metzler 2019-06-20 566 (data_len != 0 || wqe->processed < wqe->bytes)) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 567 sge_idx++; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 568 sge++; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 569 sge_off = 0; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 570 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 571 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 572 /* trailer */ b9be6f18cf9ed0 Bernard Metzler 2019-06-20 573 if (likely(c_tx->state != SIW_SEND_TRAILER)) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 574 iov[seg].iov_base = &c_tx->trailer.pad[4 - c_tx->pad]; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 575 iov[seg].iov_len = trl_len = MAX_TRAILER - (4 - c_tx->pad); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 576 } else { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 577 iov[seg].iov_base = &c_tx->trailer.pad[c_tx->ctrl_sent]; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 578 iov[seg].iov_len = trl_len = MAX_TRAILER - c_tx->ctrl_sent; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 579 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 580 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 581 if (c_tx->pad) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 582 *(u32 *)c_tx->trailer.pad = 0; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 583 if (do_crc) b9be6f18cf9ed0 Bernard Metzler 2019-06-20 584 crypto_shash_update(c_tx->mpa_crc_hd, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 585 (u8 *)&c_tx->trailer.crc - c_tx->pad, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 586 c_tx->pad); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 587 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 588 if (!c_tx->mpa_crc_hd) b9be6f18cf9ed0 Bernard Metzler 2019-06-20 589 c_tx->trailer.crc = 0; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 590 else if (do_crc) b9be6f18cf9ed0 Bernard Metzler 2019-06-20 591 crypto_shash_final(c_tx->mpa_crc_hd, (u8 *)&c_tx->trailer.crc); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 592 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 593 data_len = c_tx->bytes_unsent; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 594 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 595 if (c_tx->use_sendpage) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 596 rv = siw_0copy_tx(s, page_array, &wqe->sqe.sge[c_tx->sge_idx], b9be6f18cf9ed0 Bernard Metzler 2019-06-20 597 c_tx->sge_off, data_len); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 598 if (rv == data_len) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 599 rv = kernel_sendmsg(s, &msg, &iov[seg], 1, trl_len); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 600 if (rv > 0) b9be6f18cf9ed0 Bernard Metzler 2019-06-20 601 rv += data_len; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 602 else b9be6f18cf9ed0 Bernard Metzler 2019-06-20 603 rv = data_len; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 604 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 605 } else { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 606 rv = kernel_sendmsg(s, &msg, iov, seg + 1, b9be6f18cf9ed0 Bernard Metzler 2019-06-20 607 hdr_len + data_len + trl_len); 9d649d594f3965 Ira Weiny 2021-06-24 608 siw_unmap_pages(iov, kmap_mask, seg); b9be6f18cf9ed0 Bernard Metzler 2019-06-20 609 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 610 if (rv < (int)hdr_len) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 611 /* Not even complete hdr pushed or negative rv */ b9be6f18cf9ed0 Bernard Metzler 2019-06-20 612 wqe->processed -= data_len; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 613 if (rv >= 0) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 614 c_tx->ctrl_sent += rv; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 615 rv = -EAGAIN; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 616 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 617 goto done_crc; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 618 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 619 rv -= hdr_len; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 620 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 621 if (rv >= (int)data_len) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 622 /* all user data pushed to TCP or no data to push */ b9be6f18cf9ed0 Bernard Metzler 2019-06-20 623 if (data_len > 0 && wqe->processed < wqe->bytes) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 624 /* Save the current state for next tx */ b9be6f18cf9ed0 Bernard Metzler 2019-06-20 625 c_tx->sge_idx = sge_idx; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 626 c_tx->sge_off = sge_off; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 627 c_tx->pbl_idx = pbl_idx; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 628 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 629 rv -= data_len; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 630 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 631 if (rv == trl_len) /* all pushed */ b9be6f18cf9ed0 Bernard Metzler 2019-06-20 632 rv = 0; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 633 else { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 634 c_tx->state = SIW_SEND_TRAILER; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 635 c_tx->ctrl_len = MAX_TRAILER; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 636 c_tx->ctrl_sent = rv + 4 - c_tx->pad; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 637 c_tx->bytes_unsent = 0; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 638 rv = -EAGAIN; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 639 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 640 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 641 } else if (data_len > 0) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 642 /* Maybe some user data pushed to TCP */ b9be6f18cf9ed0 Bernard Metzler 2019-06-20 643 c_tx->state = SIW_SEND_DATA; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 644 wqe->processed -= data_len - rv; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 645 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 646 if (rv) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 647 /* b9be6f18cf9ed0 Bernard Metzler 2019-06-20 648 * Some bytes out. Recompute tx state based b9be6f18cf9ed0 Bernard Metzler 2019-06-20 649 * on old state and bytes pushed b9be6f18cf9ed0 Bernard Metzler 2019-06-20 650 */ b9be6f18cf9ed0 Bernard Metzler 2019-06-20 651 unsigned int sge_unsent; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 652 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 653 c_tx->bytes_unsent -= rv; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 654 sge = &wqe->sqe.sge[c_tx->sge_idx]; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 655 sge_unsent = sge->length - c_tx->sge_off; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 656 b9be6f18cf9ed0 Bernard Metzler 2019-06-20 657 while (sge_unsent <= rv) { b9be6f18cf9ed0 Bernard Metzler 2019-06-20 658 rv -= sge_unsent; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 659 c_tx->sge_idx++; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 660 c_tx->sge_off = 0; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 661 sge++; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 662 sge_unsent = sge->length; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 663 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 664 c_tx->sge_off += rv; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 665 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 666 rv = -EAGAIN; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 667 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 668 done_crc: b9be6f18cf9ed0 Bernard Metzler 2019-06-20 669 c_tx->do_crc = 0; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 670 done: b9be6f18cf9ed0 Bernard Metzler 2019-06-20 671 return rv; b9be6f18cf9ed0 Bernard Metzler 2019-06-20 672 } b9be6f18cf9ed0 Bernard Metzler 2019-06-20 673 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
