iwlwifi: pcie: introduce new tfd and tb formats
New hardware supports bigger TFDs and TBs.
Introduce the new formats and adjust defines and code
relying on old format.
Changing the actual TFD allocation is trickier and
deferred to the next patch.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 2f46eed..0c2ccbe 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -2437,12 +2437,14 @@
}
#endif /*CONFIG_IWLWIFI_DEBUGFS */
-static u32 iwl_trans_pcie_get_cmdlen(struct iwl_tfd *tfd)
+static u32 iwl_trans_pcie_get_cmdlen(struct iwl_trans *trans,
+ struct iwl_tfd *tfd)
{
+ struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
u32 cmdlen = 0;
int i;
- for (i = 0; i < IWL_NUM_OF_TBS; i++)
+ for (i = 0; i < trans_pcie->max_tbs; i++)
cmdlen += iwl_pcie_tfd_tb_get_len(tfd, i);
return cmdlen;
@@ -2731,7 +2733,7 @@
u8 idx = get_cmd_index(&cmdq->q, ptr);
u32 caplen, cmdlen;
- cmdlen = iwl_trans_pcie_get_cmdlen(&cmdq->tfds[ptr]);
+ cmdlen = iwl_trans_pcie_get_cmdlen(trans, &cmdq->tfds[ptr]);
caplen = min_t(u32, TFD_MAX_PAYLOAD_SIZE, cmdlen);
if (cmdlen) {
@@ -2839,8 +2841,6 @@
if (!trans)
return ERR_PTR(-ENOMEM);
- trans->max_skb_frags = IWL_PCIE_MAX_FRAGS;
-
trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
trans_pcie->trans = trans;
@@ -2874,6 +2874,12 @@
else
addr_size = 36;
+ if (cfg->use_tfh)
+ trans_pcie->max_tbs = IWL_TFH_NUM_TBS;
+ else
+ trans_pcie->max_tbs = IWL_NUM_OF_TBS;
+ trans->max_skb_frags = IWL_PCIE_MAX_FRAGS(trans_pcie);
+
pci_set_master(pdev);
ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(addr_size));