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Date:      Mon, 9 Jan 2012 19:23:29 +0000 (UTC)
From:      Pyun YongHyeon <yongari@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org
Subject:   svn commit: r229869 - stable/7/sys/dev/bge
Message-ID:  <201201091923.q09JNThS054685@svn.freebsd.org>
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Author: yongari
Date: Mon Jan  9 19:23:29 2012
New Revision: 229869
URL: http://svn.freebsd.org/changeset/base/229869

Log:
  MFC r228479-228480:
  r228479:
    BCM5720 performance tweak from Broadcom.
     o Allow multiple outstanding read requests from non-LSO read DMA engine.
     o Allow 4KB burst length reads for non-LSO frames.
     o Enable 512B burst length reads for buffer descriptors.
  
  r228480:
    Destroy DMA tag for jumbo RX buffer in device detach.

Modified:
  stable/7/sys/dev/bge/if_bge.c
  stable/7/sys/dev/bge/if_bgereg.h
Directory Properties:
  stable/7/sys/   (props changed)
  stable/7/sys/cddl/contrib/opensolaris/   (props changed)
  stable/7/sys/contrib/dev/acpica/   (props changed)
  stable/7/sys/contrib/pf/   (props changed)

Modified: stable/7/sys/dev/bge/if_bge.c
==============================================================================
--- stable/7/sys/dev/bge/if_bge.c	Mon Jan  9 19:20:46 2012	(r229868)
+++ stable/7/sys/dev/bge/if_bge.c	Mon Jan  9 19:23:29 2012	(r229869)
@@ -2084,9 +2084,15 @@ bge_blockinit(struct bge_softc *sc)
 			val |= BGE_RDMAMODE_TSO6_ENABLE;
 	}
 
-	if (sc->bge_asicrev == BGE_ASICREV_BCM5720)
+	if (sc->bge_asicrev == BGE_ASICREV_BCM5720) {
 		val |= CSR_READ_4(sc, BGE_RDMA_MODE) &
 			BGE_RDMAMODE_H2BNC_VLAN_DET;
+		/*
+		 * Allow multiple outstanding read requests from
+		 * non-LSO read DMA engine.
+		 */
+		val &= ~BGE_RDMAMODE_MULT_DMA_RD_DIS;
+	}
 
 	if (sc->bge_asicrev == BGE_ASICREV_BCM5761 ||
 	    sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
@@ -2116,12 +2122,20 @@ bge_blockinit(struct bge_softc *sc)
 		    BGE_RDMA_RSRVCTRL_FIFO_OFLW_FIX);
 	}
 
-	if (sc->bge_asicrev == BGE_ASICREV_BCM5719 ||
-	    sc->bge_asicrev == BGE_ASICREV_BCM5720) {
+	if (sc->bge_asicrev == BGE_ASICREV_BCM5719) {
 		CSR_WRITE_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL,
 		    CSR_READ_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL) |
 		    BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_BD_4K |
 		    BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_LSO_4K);
+	} else if (sc->bge_asicrev == BGE_ASICREV_BCM5720) {
+		/*
+		 * Allow 4KB burst length reads for non-LSO frames.
+		 * Enable 512B burst length reads for buffer descriptors.
+		 */
+		CSR_WRITE_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL,
+		    CSR_READ_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL) |
+		    BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_BD_512 |
+		    BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_LSO_4K);
 	}
 
 	CSR_WRITE_4(sc, BGE_RDMA_MODE, val);
@@ -2348,6 +2362,8 @@ bge_dma_free(struct bge_softc *sc)
 
 	if (sc->bge_cdata.bge_rx_mtag)
 		bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
+	if (sc->bge_cdata.bge_mtag_jumbo)
+		bus_dma_tag_destroy(sc->bge_cdata.bge_mtag_jumbo);
 	if (sc->bge_cdata.bge_tx_mtag)
 		bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
 

Modified: stable/7/sys/dev/bge/if_bgereg.h
==============================================================================
--- stable/7/sys/dev/bge/if_bgereg.h	Mon Jan  9 19:20:46 2012	(r229868)
+++ stable/7/sys/dev/bge/if_bgereg.h	Mon Jan  9 19:23:29 2012	(r229869)
@@ -1573,6 +1573,7 @@
 #define	BGE_RDMA_RSRVCTRL_FIFO_HWM_MASK	0x000FF000
 #define	BGE_RDMA_RSRVCTRL_TXMRGN_MASK	0xFFE00000
 
+#define	BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_BD_512	0x00020000
 #define	BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_BD_4K	0x00030000
 #define	BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_LSO_4K	0x000C0000

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