Date: Sun, 11 Sep 2016 17:51:17 +0000 (UTC) From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r305702 - head/sys/dev/cxgbe Message-ID: <201609111751.u8BHpH34096283@repo.freebsd.org>
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Author: np Date: Sun Sep 11 17:51:17 2016 New Revision: 305702 URL: https://svnweb.freebsd.org/changeset/base/305702 Log: cxgbe(4): Use smaller min/max bursts for fl descriptors with a T6. Sponsored by: Chelsio Communications Modified: head/sys/dev/cxgbe/t4_netmap.c head/sys/dev/cxgbe/t4_sge.c Modified: head/sys/dev/cxgbe/t4_netmap.c ============================================================================== --- head/sys/dev/cxgbe/t4_netmap.c Sun Sep 11 17:48:06 2016 (r305701) +++ head/sys/dev/cxgbe/t4_netmap.c Sun Sep 11 17:51:17 2016 (r305702) @@ -139,8 +139,10 @@ alloc_nm_rxq_hwq(struct vi_info *vi, str (fl_pad ? F_FW_IQ_CMD_FL0PADEN : 0) | (black_hole == 2 ? F_FW_IQ_CMD_FL0PACKEN : 0)); c.fl0dcaen_to_fl0cidxfthresh = - htobe16(V_FW_IQ_CMD_FL0FBMIN(X_FETCHBURSTMIN_128B) | - V_FW_IQ_CMD_FL0FBMAX(X_FETCHBURSTMAX_512B)); + htobe16(V_FW_IQ_CMD_FL0FBMIN(chip_id(sc) <= CHELSIO_T5 ? + X_FETCHBURSTMIN_128B : X_FETCHBURSTMIN_64B) | + V_FW_IQ_CMD_FL0FBMAX(chip_id(sc) <= CHELSIO_T5 ? + X_FETCHBURSTMAX_512B : X_FETCHBURSTMAX_256B)); c.fl0size = htobe16(na->num_rx_desc / 8 + sp->spg_len / EQ_ESIZE); c.fl0addr = htobe64(nm_rxq->fl_ba); Modified: head/sys/dev/cxgbe/t4_sge.c ============================================================================== --- head/sys/dev/cxgbe/t4_sge.c Sun Sep 11 17:48:06 2016 (r305701) +++ head/sys/dev/cxgbe/t4_sge.c Sun Sep 11 17:51:17 2016 (r305702) @@ -2733,8 +2733,10 @@ alloc_iq_fl(struct vi_info *vi, struct s F_FW_IQ_CMD_FL0CONGEN); } c.fl0dcaen_to_fl0cidxfthresh = - htobe16(V_FW_IQ_CMD_FL0FBMIN(X_FETCHBURSTMIN_128B) | - V_FW_IQ_CMD_FL0FBMAX(X_FETCHBURSTMAX_512B)); + htobe16(V_FW_IQ_CMD_FL0FBMIN(chip_id(sc) <= CHELSIO_T5 ? + X_FETCHBURSTMIN_128B : X_FETCHBURSTMIN_64B) | + V_FW_IQ_CMD_FL0FBMAX(chip_id(sc) <= CHELSIO_T5 ? + X_FETCHBURSTMAX_512B : X_FETCHBURSTMAX_256B)); c.fl0size = htobe16(fl->qsize); c.fl0addr = htobe64(fl->ba); }
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