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iwlwifi: pcie: add 9000 series multi queue rx DMA support

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The 9000 series introduces several changes in the device
DMA operation.
As the device now supports multi-queue rx, several DMA channels
should be configured.
The flows of providing the device with the allocated RBDs now
changes as well - the device maintains a separate table of used
and free table.

The hardware may use the free table to feed RBDs to any queue.
This requires maintaing a shared table to map returned RBDs to
the original RXB - for that purpose the VID is introduced - an
internal identifier of the RB placed in the lower 12 bits and
returned by HW in the used data.

Another change is the support of 64 bit DMA address.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Sara Sharon
2015-12-23 15:10:03 +02:00
committed by Emmanuel Grumbach
parent 7848505416
commit 96a6497bc3
6 changed files with 324 additions and 82 deletions
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2
drivers/net/wireless/intel/iwlwifi/iwl-config.h
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@@ -311,6 +311,7 @@ struct iwl_pwr_tx_backoff {
* @dccm2_len: length of the second DCCM
* @smem_offset: offset from which the SMEM begins
* @smem_len: the length of SMEM
* @mq_rx_supported: multi-queue rx support
*
* We enable the driver to be backward compatible wrt. hardware features.
* API differences in uCode shouldn't be handled here but through TLVs
@@ -362,6 +363,7 @@ struct iwl_cfg {
const u32 smem_len;
const struct iwl_tt_params *thermal_params;
bool apmg_not_supported;
bool mq_rx_supported;
};
/*