diff mbox series

[net,V2,3/4] net: wwan: iosm: fix invalid mux header type

Message ID 20221107073513.1978209-1-m.chetan.kumar@linux.intel.com (mailing list archive)
State Accepted
Commit 02d2d2ea4a3bc2391f6ac31f6854da83e8a63829
Delegated to: Netdev Maintainers
Headers show
Series net: wwan: iosm: fixes | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net
netdev/fixes_present success Fixes tag present in non-next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1 this patch: 1
netdev/cc_maintainers success CCed 10 of 10 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 21 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Kumar, M Chetan Nov. 7, 2022, 7:35 a.m. UTC 
From: M Chetan Kumar <m.chetan.kumar@linux.intel.com>

Data stall seen during peak DL throughput test & packets are
dropped by mux layer due to invalid header type in datagram.

During initlization Mux aggregration protocol is set to default
UL/DL size and TD count of Mux lite protocol. This configuration
mismatch between device and driver is resulting in data stall/packet
drops.

Override the UL/DL size and TD count for Mux aggregation protocol.

Fixes: 1f52d7b62285 ("net: wwan: iosm: Enable M.2 7360 WWAN card support")
Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
--
v2:
 * No Change.
---
 drivers/net/wwan/iosm/iosm_ipc_imem_ops.c | 8 ++++++++
 drivers/net/wwan/iosm/iosm_ipc_mux.h      | 1 +
 2 files changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c
index b7f9237dedf7..66b90cc4c346 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c
@@ -91,6 +91,14 @@  void ipc_imem_wwan_channel_init(struct iosm_imem *ipc_imem,
 	}
 
 	ipc_chnl_cfg_get(&chnl_cfg, ipc_imem->nr_of_channels);
+
+	if (ipc_imem->mmio->mux_protocol == MUX_AGGREGATION &&
+	    ipc_imem->nr_of_channels == IPC_MEM_IP_CHL_ID_0) {
+		chnl_cfg.ul_nr_of_entries = IPC_MEM_MAX_TDS_MUX_AGGR_UL;
+		chnl_cfg.dl_nr_of_entries = IPC_MEM_MAX_TDS_MUX_AGGR_DL;
+		chnl_cfg.dl_buf_size = IPC_MEM_MAX_ADB_BUF_SIZE;
+	}
+
 	ipc_imem_channel_init(ipc_imem, IPC_CTYPE_WWAN, chnl_cfg,
 			      IRQ_MOD_OFF);
 
diff --git a/drivers/net/wwan/iosm/iosm_ipc_mux.h b/drivers/net/wwan/iosm/iosm_ipc_mux.h
index cd9d74cc097f..9968bb885c1f 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_mux.h
+++ b/drivers/net/wwan/iosm/iosm_ipc_mux.h
@@ -10,6 +10,7 @@ 
 
 #define IPC_MEM_MAX_UL_DG_ENTRIES	100
 #define IPC_MEM_MAX_TDS_MUX_AGGR_UL	60
+#define IPC_MEM_MAX_TDS_MUX_AGGR_DL	60
 
 #define IPC_MEM_MAX_ADB_BUF_SIZE (16 * 1024)
 #define IPC_MEM_MAX_UL_ADB_BUF_SIZE IPC_MEM_MAX_ADB_BUF_SIZE