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wifi: iwlwifi: increase number of RX buffers for EHT devices

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EHT devices can support 512 MPDUs in an A-MPDU, each of
which might be an A-MSDU and thus further contain multiple
MSDUs, which need their own buffer each. Increase the number
of buffers to avoid running out in high-throughput scenarios.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230830112059.824e522927f1.Ie5b4a2d3953072b9d76054ae67e2e45900d6bba4@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2023-08-30 11:31:04 +03:00
parent 9f9797c7de
commit 2cf254c1e2
2 changed files with 7 additions and 11 deletions
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10
drivers/net/wireless/intel/iwlwifi/cfg/bz.c
View File

@ -134,12 +134,10 @@ static const struct iwl_base_params iwl_bz_base_params = {
.ht_params = &iwl_gl_a_ht_params
/*
* If the device doesn't support HE, no need to have that many buffers.
* These sizes were picked according to 8 MSDUs inside 256 A-MSDUs in an
* This size was picked according to 8 MSDUs inside 512 A-MSDUs in an
* A-MPDU, with additional overhead to account for processing time.
*/
#define IWL_NUM_RBDS_NON_HE 512
#define IWL_NUM_RBDS_BZ_HE 4096
#define IWL_NUM_RBDS_BZ_EHT (512 * 16)
const struct iwl_cfg_trans_params iwl_bz_trans_cfg = {
.device_family = IWL_DEVICE_FAMILY_BZ,
@ -161,7 +159,7 @@ const struct iwl_cfg iwl_cfg_bz = {
.uhb_supported = true,
IWL_DEVICE_BZ,
.features = IWL_TX_CSUM_NETIF_FLAGS_BZ | NETIF_F_RXCSUM,
.num_rbds = IWL_NUM_RBDS_BZ_HE,
.num_rbds = IWL_NUM_RBDS_BZ_EHT,
};
const struct iwl_cfg iwl_cfg_gl = {
@ -169,7 +167,7 @@ const struct iwl_cfg iwl_cfg_gl = {
.uhb_supported = true,
IWL_DEVICE_BZ,
.features = IWL_TX_CSUM_NETIF_FLAGS_BZ | NETIF_F_RXCSUM,
.num_rbds = IWL_NUM_RBDS_BZ_HE,
.num_rbds = IWL_NUM_RBDS_BZ_EHT,
};

8
drivers/net/wireless/intel/iwlwifi/cfg/sc.c
View File

@ -127,12 +127,10 @@ static const struct iwl_base_params iwl_sc_base_params = {
.ht_params = &iwl_22000_ht_params
/*
* If the device doesn't support HE, no need to have that many buffers.
* These sizes were picked according to 8 MSDUs inside 256 A-MSDUs in an
* This size was picked according to 8 MSDUs inside 512 A-MSDUs in an
* A-MPDU, with additional overhead to account for processing time.
*/
#define IWL_NUM_RBDS_NON_HE 512
#define IWL_NUM_RBDS_SC_HE 4096
#define IWL_NUM_RBDS_SC_EHT (512 * 16)
const struct iwl_cfg_trans_params iwl_sc_trans_cfg = {
.device_family = IWL_DEVICE_FAMILY_SC,
@ -154,7 +152,7 @@ const struct iwl_cfg iwl_cfg_sc = {
.uhb_supported = true,
IWL_DEVICE_SC,
.features = IWL_TX_CSUM_NETIF_FLAGS_BZ | NETIF_F_RXCSUM,
.num_rbds = IWL_NUM_RBDS_SC_HE,
.num_rbds = IWL_NUM_RBDS_SC_EHT,
};
MODULE_FIRMWARE(IWL_SC_A_FM_B_FW_MODULE_FIRMWARE(IWL_SC_UCODE_API_MAX));