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Commit 5538409b authored by Liad Kaufman's avatar Liad Kaufman Committed by Luca Coelho
Browse files

iwlwifi: pcie: support page dumping in wrt in gen2 



In gen2, page dumping needs to be done in the trans
layer, as it is the one with access to the paging
pointers.

Signed-off-by: default avatarLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent 2ba57c8b

drivers/net/wireless/intel/iwlwifi/pcie/trans.c

+29 −0
Original line number Diff line number Diff line
@@ -2754,6 +2754,13 @@ static struct iwl_trans_dump_data 
				  (PAGE_SIZE << trans_pcie->rx_page_order));

	}



	/* Paged memory for gen2 HW */

	if (trans->cfg->gen2)

		for (i = 0; i < trans_pcie->init_dram.paging_cnt; i++)

			len += sizeof(*data) +

			       sizeof(struct iwl_fw_error_dump_paging) +

			       trans_pcie->init_dram.paging[i].size;



	dump_data = vzalloc(len);

	if (!dump_data)

		return NULL;
@@ -2793,6 +2800,28 @@ static struct iwl_trans_dump_data 
	if (dump_rbs)

		len += iwl_trans_pcie_dump_rbs(trans, &data, num_rbs);



	/* Paged memory for gen2 HW */

	if (trans->cfg->gen2) {

		for (i = 0; i < trans_pcie->init_dram.paging_cnt; i++) {

			struct iwl_fw_error_dump_paging *paging;

			dma_addr_t addr =

				trans_pcie->init_dram.paging[i].physical;

			u32 page_len = trans_pcie->init_dram.paging[i].size;



			data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PAGING);

			data->len = cpu_to_le32(sizeof(*paging) + page_len);

			paging = (void *)data->data;

			paging->index = cpu_to_le32(i);

			dma_sync_single_for_cpu(trans->dev, addr, page_len,

						DMA_BIDIRECTIONAL);

			memcpy(paging->data,

			       trans_pcie->init_dram.paging[i].block, page_len);

			data = iwl_fw_error_next_data(data);



			len += sizeof(*data) + sizeof(*paging) + page_len;

		}

	}



	len += iwl_trans_pcie_dump_monitor(trans, &data, monitor_len);



	dump_data->len = len;