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iwlwifi: pcie: support page dumping in wrt in gen2

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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: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Liad Kaufman 2017-03-12 11:09:58 +02:00 • committed by Luca Coelho
parent 2ba57c8bf9
commit 5538409ba3
1 changed files with 29 additions and 0 deletions
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29
drivers/net/wireless/intel/iwlwifi/pcie/trans.c
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@ -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;