Date: Sun, 15 Nov 2009 11:30:59 +0000 (UTC) From: Stanislav Sedov <stas@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r199288 - in stable/8/sys: conf dev/bce Message-ID: <200911151130.nAFBUx6Y036327@svn.freebsd.org>
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Author: stas Date: Sun Nov 15 11:30:59 2009 New Revision: 199288 URL: http://svn.freebsd.org/changeset/base/199288 Log: - MFC r198320: Introduce new option BCE_JUMBO_HDRSPLIT that allows user to enable header in bce(4) instead of (ab)using ZERO_COPY_SOCKETS that was not into if_bce.c anyway. It is disabled by default. Modified: stable/8/sys/conf/NOTES stable/8/sys/conf/options stable/8/sys/dev/bce/if_bce.c stable/8/sys/dev/bce/if_bcereg.h Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/xen/xenpci/ (props changed) stable/8/sys/netinet6/ (props changed) Modified: stable/8/sys/conf/NOTES ============================================================================== --- stable/8/sys/conf/NOTES Sun Nov 15 11:07:22 2009 (r199287) +++ stable/8/sys/conf/NOTES Sun Nov 15 11:30:59 2009 (r199288) @@ -2023,6 +2023,12 @@ device lmc # only works for Tigon II chips, and has no effect for Tigon I chips. options TI_JUMBO_HDRSPLIT +# +# Use header splitting feature on bce(4) adapters. +# This may help to reduce the amount of jumbo-sized memory buffers used. +# +options BCE_JUMBO_HDRSPLIT + # These two options allow manipulating the mbuf cluster size and mbuf size, # respectively. Be very careful with NIC driver modules when changing # these from their default values, because that can potentially cause a Modified: stable/8/sys/conf/options ============================================================================== --- stable/8/sys/conf/options Sun Nov 15 11:07:22 2009 (r199287) +++ stable/8/sys/conf/options Sun Nov 15 11:30:59 2009 (r199288) @@ -511,6 +511,7 @@ DRM_DEBUG opt_drm.h ZERO_COPY_SOCKETS opt_zero.h TI_PRIVATE_JUMBOS opt_ti.h TI_JUMBO_HDRSPLIT opt_ti.h +BCE_JUMBO_HDRSPLIT opt_bce.h # XXX Conflict: # of devices vs network protocol (Native ATM). # This makes "atm.h" unusable. Modified: stable/8/sys/dev/bce/if_bce.c ============================================================================== --- stable/8/sys/dev/bce/if_bce.c Sun Nov 15 11:07:22 2009 (r199287) +++ stable/8/sys/dev/bce/if_bce.c Sun Nov 15 11:30:59 2009 (r199288) @@ -293,12 +293,12 @@ static void bce_dump_enet (str static void bce_dump_mbuf (struct bce_softc *, struct mbuf *); static void bce_dump_tx_mbuf_chain (struct bce_softc *, u16, int); static void bce_dump_rx_mbuf_chain (struct bce_softc *, u16, int); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT static void bce_dump_pg_mbuf_chain (struct bce_softc *, u16, int); #endif static void bce_dump_txbd (struct bce_softc *, int, struct tx_bd *); static void bce_dump_rxbd (struct bce_softc *, int, struct rx_bd *); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT static void bce_dump_pgbd (struct bce_softc *, int, struct rx_bd *); #endif static void bce_dump_l2fhdr (struct bce_softc *, int, struct l2_fhdr *); @@ -306,7 +306,7 @@ static void bce_dump_ctx (struct bce_s static void bce_dump_ftqs (struct bce_softc *); static void bce_dump_tx_chain (struct bce_softc *, u16, int); static void bce_dump_rx_chain (struct bce_softc *, u16, int); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT static void bce_dump_pg_chain (struct bce_softc *, u16, int); #endif static void bce_dump_status_block (struct bce_softc *); @@ -393,7 +393,7 @@ static int bce_init_rx_chain (struct b static void bce_fill_rx_chain (struct bce_softc *); static void bce_free_rx_chain (struct bce_softc *); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT static int bce_get_pg_buf (struct bce_softc *, struct mbuf *, u16 *, u16 *); static int bce_init_pg_chain (struct bce_softc *); static void bce_fill_pg_chain (struct bce_softc *); @@ -602,7 +602,7 @@ bce_print_adapter_info(struct bce_softc /* Firmware version and device features. */ printf("B/C (%s); Flags (", sc->bce_bc_ver); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT printf("SPLT "); i++; #endif @@ -1066,7 +1066,7 @@ bce_attach(device_t dev) * This may change later if the MTU size is set to * something other than 1500. */ -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT sc->rx_bd_mbuf_alloc_size = MHLEN; /* Make sure offset is 16 byte aligned for hardware. */ sc->rx_bd_mbuf_align_pad = roundup2((MSIZE - MHLEN), 16) - @@ -2835,7 +2835,7 @@ bce_dma_free(struct bce_softc *sc) } -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /* Free, unmap and destroy all page buffer descriptor chain pages. */ for (i = 0; i < PG_PAGES; i++ ) { if (sc->pg_bd_chain[i] != NULL) { @@ -2899,7 +2899,7 @@ bce_dma_free(struct bce_softc *sc) sc->rx_mbuf_tag = NULL; } -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /* Unload and destroy the page mbuf maps. */ for (i = 0; i < TOTAL_PG_BD; i++) { if (sc->pg_mbuf_map[i] != NULL) { @@ -3345,7 +3345,7 @@ bce_dma_alloc(device_t dev) /* * Create a DMA tag for RX mbufs. */ -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT max_size = max_seg_size = ((sc->rx_bd_mbuf_alloc_size < MCLBYTES) ? MCLBYTES : sc->rx_bd_mbuf_alloc_size); #else @@ -3386,7 +3386,7 @@ bce_dma_alloc(device_t dev) } } -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /* * Create a DMA tag for the page buffer descriptor chain, * allocate and clear the memory, and fetch the physical @@ -4473,7 +4473,7 @@ bce_stop(struct bce_softc *sc) bce_disable_intr(sc); /* Free RX buffers. */ -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT bce_free_pg_chain(sc); #endif bce_free_rx_chain(sc); @@ -4910,7 +4910,7 @@ bce_get_rx_buf(struct bce_softc *sc, str goto bce_get_rx_buf_exit); /* This is a new mbuf allocation. */ -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT MGETHDR(m_new, M_DONTWAIT, MT_DATA); #else if (sc->rx_bd_mbuf_alloc_size <= MCLBYTES) @@ -4991,7 +4991,7 @@ bce_get_rx_buf_exit: } -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /****************************************************************************/ /* Encapsulate an mbuf cluster into the page chain. */ /* */ @@ -5100,7 +5100,7 @@ bce_get_pg_buf_exit: return(rc); } -#endif /* ZERO_COPY_SOCKETS */ +#endif /* BCE_JUMBO_HDRSPLIT */ /****************************************************************************/ /* Initialize the TX context memory. */ @@ -5456,7 +5456,7 @@ bce_free_rx_chain(struct bce_softc *sc) } -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /****************************************************************************/ /* Allocate memory and initialize the page data structures. */ /* Assumes that bce_init_rx_chain() has not already been called. */ @@ -5620,7 +5620,7 @@ bce_free_pg_chain(struct bce_softc *sc) DBEXIT(BCE_VERBOSE_RESET | BCE_VERBOSE_RECV | BCE_VERBOSE_UNLOAD); } -#endif /* ZERO_COPY_SOCKETS */ +#endif /* BCE_JUMBO_HDRSPLIT */ /****************************************************************************/ @@ -5793,7 +5793,7 @@ bce_rx_intr(struct bce_softc *sc) unsigned int pkt_len; u16 sw_rx_cons, sw_rx_cons_idx, hw_rx_cons; u32 status; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT unsigned int rem_len; u16 sw_pg_cons, sw_pg_cons_idx; #endif @@ -5809,7 +5809,7 @@ bce_rx_intr(struct bce_softc *sc) bus_dmamap_sync(sc->rx_bd_chain_tag, sc->rx_bd_chain_map[i], BUS_DMASYNC_POSTREAD); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /* Prepare the page chain pages to be accessed by the host CPU. */ for (int i = 0; i < PG_PAGES; i++) bus_dmamap_sync(sc->pg_bd_chain_tag, @@ -5821,7 +5821,7 @@ bce_rx_intr(struct bce_softc *sc) /* Get working copies of the driver's view of the consumer indices. */ sw_rx_cons = sc->rx_cons; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT sw_pg_cons = sc->pg_cons; #endif @@ -5882,7 +5882,7 @@ bce_rx_intr(struct bce_softc *sc) */ m_adj(m0, sizeof(struct l2_fhdr) + ETHER_ALIGN); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /* * Check whether the received frame fits in a single * mbuf or not (i.e. packet data + FCS <= @@ -6056,7 +6056,7 @@ bce_rx_int_next_rx: if (m0) { /* Make sure we don't lose our place when we release the lock. */ sc->rx_cons = sw_rx_cons; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT sc->pg_cons = sw_pg_cons; #endif @@ -6066,7 +6066,7 @@ bce_rx_int_next_rx: /* Recover our place. */ sw_rx_cons = sc->rx_cons; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT sw_pg_cons = sc->pg_cons; #endif } @@ -6077,7 +6077,7 @@ bce_rx_int_next_rx: } /* No new packets to process. Refill the RX and page chains and exit. */ -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT sc->pg_cons = sw_pg_cons; bce_fill_pg_chain(sc); #endif @@ -6090,7 +6090,7 @@ bce_rx_int_next_rx: bus_dmamap_sync(sc->rx_bd_chain_tag, sc->rx_bd_chain_map[i], BUS_DMASYNC_PREWRITE); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT for (int i = 0; i < PG_PAGES; i++) bus_dmamap_sync(sc->pg_bd_chain_tag, sc->pg_bd_chain_map[i], BUS_DMASYNC_PREWRITE); @@ -6336,7 +6336,7 @@ bce_init_locked(struct bce_softc *sc) * Calculate and program the hardware Ethernet MTU * size. Be generous on the receive if we have room. */ -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT if (ifp->if_mtu <= (sc->rx_bd_mbuf_data_len + sc->pg_bd_mbuf_alloc_size)) ether_mtu = sc->rx_bd_mbuf_data_len + sc->pg_bd_mbuf_alloc_size; #else @@ -6368,7 +6368,7 @@ bce_init_locked(struct bce_softc *sc) /* Program appropriate promiscuous/multicast filtering. */ bce_set_rx_mode(sc); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT DBPRINT(sc, BCE_INFO_LOAD, "%s(): pg_bd_mbuf_alloc_size = %d\n", __FUNCTION__, sc->pg_bd_mbuf_alloc_size); @@ -6881,7 +6881,7 @@ bce_ioctl(struct ifnet *ifp, u_long comm BCE_LOCK(sc); ifp->if_mtu = ifr->ifr_mtu; ifp->if_drv_flags &= ~IFF_DRV_RUNNING; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /* No buffer allocation size changes are necessary. */ #else /* Recalculate our buffer allocation sizes. */ @@ -7584,7 +7584,7 @@ bce_tick(void *xsc) bce_stats_update(sc); /* Top off the receive and page chains. */ -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT bce_fill_pg_chain(sc); #endif bce_fill_rx_chain(sc); @@ -7764,7 +7764,7 @@ bce_sysctl_dump_tx_chain(SYSCTL_HANDLER_ } -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /****************************************************************************/ /* Provides a sysctl interface to allow dumping the page chain. */ /* */ @@ -8392,7 +8392,7 @@ bce_add_sysctls(struct bce_softc *sc) (void *)sc, 0, bce_sysctl_dump_tx_chain, "I", "Dump tx_bd chain"); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "dump_pg_chain", CTLTYPE_INT | CTLFLAG_RW, (void *)sc, 0, @@ -8687,7 +8687,7 @@ bce_dump_rx_mbuf_chain(struct bce_softc } -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /****************************************************************************/ /* Prints out the mbufs in the mbuf page chain. */ /* */ @@ -8811,7 +8811,7 @@ bce_dump_rxbd(struct bce_softc *sc, int } -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /****************************************************************************/ /* Prints out a rx_bd structure in the page chain. */ /* */ @@ -9298,7 +9298,7 @@ bce_dump_rx_chain(struct bce_softc *sc, } -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /****************************************************************************/ /* Prints out the page chain. */ /* */ @@ -9779,7 +9779,7 @@ bce_dump_driver_state(struct bce_softc * "0x%08X:%08X - (sc->rx_bd_chain) rx_bd chain virtual address\n", val_hi, val_lo); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT val_hi = BCE_ADDR_HI(sc->pg_bd_chain); val_lo = BCE_ADDR_LO(sc->pg_bd_chain); BCE_PRINTF( @@ -9799,7 +9799,7 @@ bce_dump_driver_state(struct bce_softc * "0x%08X:%08X - (sc->rx_mbuf_ptr) rx mbuf chain virtual address\n", val_hi, val_lo); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT val_hi = BCE_ADDR_HI(sc->pg_mbuf_ptr); val_lo = BCE_ADDR_LO(sc->pg_mbuf_ptr); BCE_PRINTF( @@ -9852,7 +9852,7 @@ bce_dump_driver_state(struct bce_softc * BCE_PRINTF(" 0x%08X - (sc->free_rx_bd) free rx_bd's\n", sc->free_rx_bd); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT BCE_PRINTF(" 0x%04X(0x%04X) - (sc->pg_prod) page producer index\n", sc->pg_prod, (u16) PG_CHAIN_IDX(sc->pg_prod)); @@ -10358,7 +10358,7 @@ bce_breakpoint(struct bce_softc *sc) bce_dump_tpat_state(sc, 0); bce_dump_cp_state(sc, 0); bce_dump_com_state(sc, 0); -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT bce_dump_pgbd(sc, 0, NULL); bce_dump_pg_mbuf_chain(sc, 0, USABLE_PG_BD); bce_dump_pg_chain(sc, 0, USABLE_PG_BD); Modified: stable/8/sys/dev/bce/if_bcereg.h ============================================================================== --- stable/8/sys/dev/bce/if_bcereg.h Sun Nov 15 11:07:22 2009 (r199287) +++ stable/8/sys/dev/bce/if_bcereg.h Sun Nov 15 11:30:59 2009 (r199288) @@ -6216,7 +6216,7 @@ struct l2_fhdr { #define RX_PAGE(x) (((x) & ~USABLE_RX_BD_PER_PAGE) >> (BCM_PAGE_BITS - 4)) #define RX_IDX(x) ((x) & USABLE_RX_BD_PER_PAGE) -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /* * To accomodate jumbo frames, the page chain should * be 4 times larger than the receive chain. @@ -6238,7 +6238,7 @@ struct l2_fhdr { #define PG_PAGE(x) (((x) & ~USABLE_PG_BD_PER_PAGE) >> (BCM_PAGE_BITS - 4)) #define PG_IDX(x) ((x) & USABLE_PG_BD_PER_PAGE) -#endif /* ZERO_COPY_SOCKETS */ +#endif /* BCE_JUMBO_HDRSPLIT */ #define CTX_INIT_RETRY_COUNT 10 @@ -6517,7 +6517,7 @@ struct bce_softc u16 tx_cons; u32 tx_prod_bseq; /* Counts the bytes used. */ -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT u16 pg_prod; u16 pg_cons; #endif @@ -6534,7 +6534,7 @@ struct bce_softc int rx_bd_mbuf_data_len; int rx_bd_mbuf_align_pad; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT int pg_bd_mbuf_alloc_size; #endif @@ -6556,7 +6556,7 @@ struct bce_softc struct rx_bd *rx_bd_chain[RX_PAGES]; bus_addr_t rx_bd_chain_paddr[RX_PAGES]; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /* H/W maintained page buffer descriptor chain structure. */ bus_dma_tag_t pg_bd_chain_tag; bus_dmamap_t pg_bd_chain_map[PG_PAGES]; @@ -6593,7 +6593,7 @@ struct bce_softc bus_dma_tag_t rx_mbuf_tag; bus_dma_tag_t tx_mbuf_tag; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT bus_dma_tag_t pg_mbuf_tag; #endif @@ -6605,7 +6605,7 @@ struct bce_softc bus_dmamap_t rx_mbuf_map[TOTAL_RX_BD]; struct mbuf *rx_mbuf_ptr[TOTAL_RX_BD]; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT /* S/W maintained mbuf page chain structure. */ bus_dmamap_t pg_mbuf_map[TOTAL_PG_BD]; struct mbuf *pg_mbuf_ptr[TOTAL_PG_BD]; @@ -6617,7 +6617,7 @@ struct bce_softc u16 used_tx_bd; u16 max_tx_bd; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT u16 free_pg_bd; u16 max_pg_bd; #endif @@ -6705,7 +6705,7 @@ struct bce_softc int debug_tx_mbuf_alloc; int debug_rx_mbuf_alloc; -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT int debug_pg_mbuf_alloc; #endif @@ -6722,7 +6722,7 @@ struct bce_softc u32 rx_low_watermark; /* Lowest number of rx_bd's free. */ u32 rx_empty_count; /* Number of times the RX chain was empty. */ -#ifdef ZERO_COPY_SOCKETS +#ifdef BCE_JUMBO_HDRSPLIT u32 pg_low_watermark; /* Lowest number of pages free. */ u32 pg_empty_count; /* Number of times the page chain was empty. */ #endif
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