diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/tx.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/tx.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c index 334ebd4c12fa..7b6071a59b69 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2003-2014, 2018-2021, 2023-2024 Intel Corporation + * Copyright (C) 2003-2014, 2018-2021, 2023-2025 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ @@ -1855,6 +1855,7 @@ dma_addr_t iwl_pcie_get_sgt_tb_phys(struct sg_table *sgt, unsigned int offset, * @cmd_meta: command meta to store the scatter list information for unmapping * @hdr: output argument for TSO headers * @hdr_room: requested length for TSO headers + * @offset: offset into the data from which mapping should start * * Allocate space for a scatter gather list and TSO headers and map the SKB * using the scatter gather list. The SKB is unmapped again when the page is @@ -1864,18 +1865,20 @@ dma_addr_t iwl_pcie_get_sgt_tb_phys(struct sg_table *sgt, unsigned int offset, */ struct sg_table *iwl_pcie_prep_tso(struct iwl_trans *trans, struct sk_buff *skb, struct iwl_cmd_meta *cmd_meta, - u8 **hdr, unsigned int hdr_room) + u8 **hdr, unsigned int hdr_room, + unsigned int offset) { struct sg_table *sgt; + unsigned int n_segments; if (WARN_ON_ONCE(skb_has_frag_list(skb))) return NULL; + n_segments = DIV_ROUND_UP(skb->len - offset, skb_shinfo(skb)->gso_size); *hdr = iwl_pcie_get_page_hdr(trans, hdr_room + __alignof__(struct sg_table) + sizeof(struct sg_table) + - (skb_shinfo(skb)->nr_frags + 1) * - sizeof(struct scatterlist), + n_segments * sizeof(struct scatterlist), skb); if (!*hdr) return NULL; @@ -1883,11 +1886,11 @@ struct sg_table *iwl_pcie_prep_tso(struct iwl_trans *trans, struct sk_buff *skb, sgt = (void *)PTR_ALIGN(*hdr + hdr_room, __alignof__(struct sg_table)); sgt->sgl = (void *)(sgt + 1); - sg_init_table(sgt->sgl, skb_shinfo(skb)->nr_frags + 1); + sg_init_table(sgt->sgl, n_segments); /* Only map the data, not the header (it is copied to the TSO page) */ - sgt->orig_nents = skb_to_sgvec(skb, sgt->sgl, skb_headlen(skb), - skb->data_len); + sgt->orig_nents = skb_to_sgvec(skb, sgt->sgl, offset, + skb->len - offset); if (WARN_ON_ONCE(sgt->orig_nents <= 0)) return NULL; @@ -1939,7 +1942,8 @@ static int iwl_fill_data_tbs_amsdu(struct iwl_trans *trans, struct sk_buff *skb, (3 + snap_ip_tcp_hdrlen + sizeof(struct ethhdr)) + iv_len; /* Our device supports 9 segments at most, it will fit in 1 page */ - sgt = iwl_pcie_prep_tso(trans, skb, out_meta, &start_hdr, hdr_room); + sgt = iwl_pcie_prep_tso(trans, skb, out_meta, &start_hdr, hdr_room, + snap_ip_tcp_hdrlen + hdr_len + iv_len); if (!sgt) return -ENOMEM; |