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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