Author: shurd Date: Mon Oct 30 21:20:33 2017 New Revision: 325168 URL: https://svnweb.freebsd.org/changeset/base/325168
Log: bnxt: HW_LRO Rx Pkt with > 32 fragments caused Crash (iflib) Broadcom NIC with HW_LRO setting max_agg_segs >= 6 can generate Rx pkt with 64 (2^6) fragments, modify IFLIB_MAX_RX_SEGS to 64 to avoid memory corruption / Crash. Submitted by: Bhargava Chenna Marreddy <bhargava.marre...@broadcom.com> Reviewed by: shurd, sbruno Approved by: sbruno (mentor) Sponsored by: Broadcom Limited Differential Revision: https://reviews.freebsd.org/D12774 Modified: head/sys/net/iflib.c Modified: head/sys/net/iflib.c ============================================================================== --- head/sys/net/iflib.c Mon Oct 30 21:14:31 2017 (r325167) +++ head/sys/net/iflib.c Mon Oct 30 21:20:33 2017 (r325168) @@ -288,7 +288,8 @@ typedef struct iflib_sw_tx_desc_array { /* magic number that should be high enough for any hardware */ #define IFLIB_MAX_TX_SEGS 128 -#define IFLIB_MAX_RX_SEGS 32 +/* bnxt supports 64 with hardware LRO enabled */ +#define IFLIB_MAX_RX_SEGS 64 #define IFLIB_RX_COPY_THRESH 128 #define IFLIB_MAX_RX_REFRESH 32 /* The minimum descriptors per second before we start coalescing */ _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
