Author: avos
Date: Sat Dec 10 17:06:55 2016
New Revision: 309821
URL: https://svnweb.freebsd.org/changeset/base/309821
Log:
rsu: increase Rx buffer size from 8k to 30k.
This is required for USB Rx aggregation
(and fixes 'could not allocate RX mbuf' / few other failures).
While here, reduce the number of Rx buffers from 100 to 1 -
the driver never uses more than one Rx buffer.
Tested with Asus USB-N10.
Modified:
head/sys/dev/usb/wlan/if_rsureg.h
Modified: head/sys/dev/usb/wlan/if_rsureg.h
==============================================================================
--- head/sys/dev/usb/wlan/if_rsureg.h Sat Dec 10 16:41:55 2016
(r309820)
+++ head/sys/dev/usb/wlan/if_rsureg.h Sat Dec 10 17:06:55 2016
(r309821)
@@ -688,10 +688,10 @@ struct r92s_add_ba_req {
/*
* Driver definitions.
*/
-#define RSU_RX_LIST_COUNT 100
+#define RSU_RX_LIST_COUNT 1
#define RSU_TX_LIST_COUNT 32
-#define RSU_RXBUFSZ (8 * 1024)
+#define RSU_RXBUFSZ (30 * 1024)
#define RSU_TXBUFSZ \
((sizeof(struct r92s_tx_desc) + IEEE80211_MAX_LEN + 3) & ~3)
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