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iwlwifi: pcie: support new TX command

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Move to use the correct structure.
Remove code referring to old command.
Update DMA locations.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Sara Sharon 2017-01-24 15:29:57 +02:00 committed by Luca Coelho
parent 066fd29a2f
commit b97277ccc6
2 changed files with 3 additions and 11 deletions
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4
drivers/net/wireless/intel/iwlwifi/pcie/internal.h
View File

@ -205,11 +205,11 @@ struct iwl_cmd_meta {
* into the buffer regardless of whether it should be mapped or not.
* This indicates how big the first TB must be to include the scratch buffer
* and the assigned PN.
* Since PN location is 16 bytes at offset 24, it's 40 now.
* Since PN location is 8 bytes at offset 12, it's 20 now.
* If we make it bigger then allocations will be bigger and copy slower, so
* that's probably not useful.
*/
#define IWL_FIRST_TB_SIZE 40
#define IWL_FIRST_TB_SIZE 20
#define IWL_FIRST_TB_SIZE_ALIGN ALIGN(IWL_FIRST_TB_SIZE, 64)
struct iwl_pcie_txq_entry {

10
drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
View File

@ -284,14 +284,12 @@ static int iwl_fill_data_tbs(struct iwl_trans *trans, struct sk_buff *skb,
return 0;
}
#define TX_CMD_FLG_MH_PAD_MSK cpu_to_le32(TX_CMD_FLG_MH_PAD)
int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb,
struct iwl_device_cmd *dev_cmd, int txq_id)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
struct ieee80211_hdr *hdr;
struct iwl_tx_cmd *tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload;
struct iwl_tx_cmd_gen2 *tx_cmd = (void *)dev_cmd->payload;
struct iwl_cmd_meta *out_meta;
struct iwl_txq *txq;
dma_addr_t tb0_phys, tb1_phys, scratch_phys;
@ -345,9 +343,6 @@ int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb,
scratch_phys = tb0_phys + sizeof(struct iwl_cmd_header) +
offsetof(struct iwl_tx_cmd, scratch);
tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys);
tx_cmd->dram_msb_ptr = iwl_get_dma_hi_addr(scratch_phys);
/* Set up first empty entry in queue's array of Tx/cmd buffers */
out_meta = &txq->entries[txq->write_ptr].meta;
out_meta->flags = 0;
@ -361,9 +356,6 @@ int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb,
len = sizeof(struct iwl_tx_cmd) + sizeof(struct iwl_cmd_header) +
hdr_len - IWL_FIRST_TB_SIZE;
tb1_len = ALIGN(len, 4);
/* Tell NIC about any 2-byte padding after MAC header */
if (tb1_len != len)
tx_cmd->tx_flags |= TX_CMD_FLG_MH_PAD_MSK;
/*
* The first TB points to bi-directional DMA data, we'll