git: 31a8b9782dc3 - main - iwm: update rate tables from OpenBSD
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Date: Fri, 17 Jan 2025 16:05:29 UTC
The branch main has been updated by adrian:
URL: https://cgit.FreeBSD.org/src/commit/?id=31a8b9782dc354ebd735db7036d7945f160b2527
commit 31a8b9782dc354ebd735db7036d7945f160b2527
Author: Adrian Chadd <adrian@FreeBSD.org>
AuthorDate: 2024-12-27 03:30:22 +0000
Commit: Adrian Chadd <adrian@FreeBSD.org>
CommitDate: 2025-01-17 16:04:58 +0000
iwm: update rate tables from OpenBSD
These are from an earlier version of the driver (22-Oct-2021) which
I started to sync against back in 2021.
These pull in the rest of the VHT and HT rates.
Since that driver has functioning 802.11n support, it makes a good
intermediary checkpoint.
Locally tested:
* 7260, STA mode, 11g and 11a modes
Differential Revision: https://reviews.freebsd.org/D48209
Obtained from: OpenBSD (at a6e25c727a2214219715b51ba6af2221d7e0d674, 22-Oct-2021)
---
sys/dev/iwm/if_iwm.c | 62 +++++++++++++++++++++++++++++++++++--------------
sys/dev/iwm/if_iwmreg.h | 24 +++++++++++--------
2 files changed, 59 insertions(+), 27 deletions(-)
diff --git a/sys/dev/iwm/if_iwm.c b/sys/dev/iwm/if_iwm.c
index c8eb46ed9795..15ef139fd5a5 100644
--- a/sys/dev/iwm/if_iwm.c
+++ b/sys/dev/iwm/if_iwm.c
@@ -197,32 +197,60 @@ _Static_assert(nitems(iwm_nvm_channels_8000) <= IWM_NUM_CHANNELS_8000,
#define IWM_NUM_2GHZ_CHANNELS 14
#define IWM_N_HW_ADDR_MASK 0xF
-/*
- * XXX For now, there's simply a fixed set of rate table entries
- * that are populated.
- */
const struct iwm_rate {
- uint8_t rate;
+ uint16_t rate;
uint8_t plcp;
+ uint8_t ht_plcp;
} iwm_rates[] = {
- { 2, IWM_RATE_1M_PLCP },
- { 4, IWM_RATE_2M_PLCP },
- { 11, IWM_RATE_5M_PLCP },
- { 22, IWM_RATE_11M_PLCP },
- { 12, IWM_RATE_6M_PLCP },
- { 18, IWM_RATE_9M_PLCP },
- { 24, IWM_RATE_12M_PLCP },
- { 36, IWM_RATE_18M_PLCP },
- { 48, IWM_RATE_24M_PLCP },
- { 72, IWM_RATE_36M_PLCP },
- { 96, IWM_RATE_48M_PLCP },
- { 108, IWM_RATE_54M_PLCP },
+ /* Legacy */ /* HT */
+ { 2, IWM_RATE_1M_PLCP, IWM_RATE_HT_SISO_MCS_INV_PLCP },
+ { 4, IWM_RATE_2M_PLCP, IWM_RATE_HT_SISO_MCS_INV_PLCP },
+ { 11, IWM_RATE_5M_PLCP, IWM_RATE_HT_SISO_MCS_INV_PLCP },
+ { 22, IWM_RATE_11M_PLCP, IWM_RATE_HT_SISO_MCS_INV_PLCP },
+ { 12, IWM_RATE_6M_PLCP, IWM_RATE_HT_SISO_MCS_0_PLCP },
+ { 18, IWM_RATE_9M_PLCP, IWM_RATE_HT_SISO_MCS_INV_PLCP },
+ { 24, IWM_RATE_12M_PLCP, IWM_RATE_HT_SISO_MCS_1_PLCP },
+ { 26, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_8_PLCP },
+ { 36, IWM_RATE_18M_PLCP, IWM_RATE_HT_SISO_MCS_2_PLCP },
+ { 48, IWM_RATE_24M_PLCP, IWM_RATE_HT_SISO_MCS_3_PLCP },
+ { 52, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_9_PLCP },
+ { 72, IWM_RATE_36M_PLCP, IWM_RATE_HT_SISO_MCS_4_PLCP },
+ { 78, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_10_PLCP },
+ { 96, IWM_RATE_48M_PLCP, IWM_RATE_HT_SISO_MCS_5_PLCP },
+ { 104, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_11_PLCP },
+ { 108, IWM_RATE_54M_PLCP, IWM_RATE_HT_SISO_MCS_6_PLCP },
+ { 128, IWM_RATE_INVM_PLCP, IWM_RATE_HT_SISO_MCS_7_PLCP },
+ { 156, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_12_PLCP },
+ { 208, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_13_PLCP },
+ { 234, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_14_PLCP },
+ { 260, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_15_PLCP },
};
#define IWM_RIDX_CCK 0
#define IWM_RIDX_OFDM 4
#define IWM_RIDX_MAX (nitems(iwm_rates)-1)
#define IWM_RIDX_IS_CCK(_i_) ((_i_) < IWM_RIDX_OFDM)
#define IWM_RIDX_IS_OFDM(_i_) ((_i_) >= IWM_RIDX_OFDM)
+#define IWM_RVAL_IS_OFDM(_i_) ((_i_) >= 12 && (_i_) != 22)
+
+/* Convert an MCS index into an iwm_rates[] index. */
+const int iwm_mcs2ridx[] = {
+ IWM_RATE_MCS_0_INDEX,
+ IWM_RATE_MCS_1_INDEX,
+ IWM_RATE_MCS_2_INDEX,
+ IWM_RATE_MCS_3_INDEX,
+ IWM_RATE_MCS_4_INDEX,
+ IWM_RATE_MCS_5_INDEX,
+ IWM_RATE_MCS_6_INDEX,
+ IWM_RATE_MCS_7_INDEX,
+ IWM_RATE_MCS_8_INDEX,
+ IWM_RATE_MCS_9_INDEX,
+ IWM_RATE_MCS_10_INDEX,
+ IWM_RATE_MCS_11_INDEX,
+ IWM_RATE_MCS_12_INDEX,
+ IWM_RATE_MCS_13_INDEX,
+ IWM_RATE_MCS_14_INDEX,
+ IWM_RATE_MCS_15_INDEX,
+};
struct iwm_nvm_section {
uint16_t length;
diff --git a/sys/dev/iwm/if_iwmreg.h b/sys/dev/iwm/if_iwmreg.h
index d9c7bb7a89f9..296d07bc4b31 100644
--- a/sys/dev/iwm/if_iwmreg.h
+++ b/sys/dev/iwm/if_iwmreg.h
@@ -4481,9 +4481,7 @@ struct iwm_beacon_filter_cmd {
#define IWM_RATE_HT_SISO_MCS_9_PLCP IWM_RATE_HT_SISO_MCS_INV_PLCP
/*
- * These serve as indexes into
- * struct iwm_rate_info fw_rate_idx_to_plcp[IWM_RATE_COUNT];
- * TODO: avoid overlap between legacy and HT rates
+ * These serve as indexes into struct iwm_rate iwm_rates[IWM_RIDX_MAX].
*/
enum {
IWM_RATE_1M_INDEX = 0,
@@ -4500,28 +4498,34 @@ enum {
IWM_RATE_9M_INDEX,
IWM_RATE_12M_INDEX,
IWM_RATE_MCS_1_INDEX = IWM_RATE_12M_INDEX,
+ IWM_RATE_MCS_8_INDEX,
+ IWM_FIRST_HT_MIMO2_RATE = IWM_RATE_MCS_8_INDEX,
IWM_RATE_18M_INDEX,
IWM_RATE_MCS_2_INDEX = IWM_RATE_18M_INDEX,
IWM_RATE_24M_INDEX,
IWM_RATE_MCS_3_INDEX = IWM_RATE_24M_INDEX,
+ IWM_RATE_MCS_9_INDEX,
IWM_RATE_36M_INDEX,
IWM_RATE_MCS_4_INDEX = IWM_RATE_36M_INDEX,
+ IWM_RATE_MCS_10_INDEX,
IWM_RATE_48M_INDEX,
IWM_RATE_MCS_5_INDEX = IWM_RATE_48M_INDEX,
+ IWM_RATE_MCS_11_INDEX,
IWM_RATE_54M_INDEX,
IWM_RATE_MCS_6_INDEX = IWM_RATE_54M_INDEX,
IWM_LAST_NON_HT_RATE = IWM_RATE_54M_INDEX,
- IWM_RATE_60M_INDEX,
- IWM_RATE_MCS_7_INDEX = IWM_RATE_60M_INDEX,
- IWM_LAST_HT_RATE = IWM_RATE_MCS_7_INDEX,
- IWM_RATE_MCS_8_INDEX,
- IWM_RATE_MCS_9_INDEX,
+ IWM_RATE_MCS_7_INDEX,
+ IWM_LAST_HT_SISO_RATE = IWM_RATE_MCS_7_INDEX,
+ IWM_RATE_MCS_12_INDEX,
+ IWM_RATE_MCS_13_INDEX,
+ IWM_RATE_MCS_14_INDEX,
+ IWM_RATE_MCS_15_INDEX,
+ IWM_LAST_HT_RATE = IWM_RATE_MCS_15_INDEX,
IWM_LAST_VHT_RATE = IWM_RATE_MCS_9_INDEX,
IWM_RATE_COUNT_LEGACY = IWM_LAST_NON_HT_RATE + 1,
- IWM_RATE_COUNT = IWM_LAST_VHT_RATE + 1,
+ IWM_RATE_COUNT = IWM_LAST_HT_RATE + 1,
};
-
#define IWM_RATE_BIT_MSK(r) (1 << (IWM_RATE_##r##M_INDEX))
/* fw API values for legacy bit rates, both OFDM and CCK */