Date: Tue, 3 Jan 2012 23:36:29 +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-9@freebsd.org Subject: svn commit: r229438 - stable/9/sys/dev/ti Message-ID: <201201032336.q03NaTBp048692@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: yongari Date: Tue Jan 3 23:36:29 2012 New Revision: 229438 URL: http://svn.freebsd.org/changeset/base/229438 Log: MFC r227431-227432,227505,227509: r227431: style. No functional changes. r227432: Remove dead ifdef. Driver should always check raised interrupt is for the device. r227505: It's bad idea to allocate large memory, 4KB, from stack. Pre-allocate the memory in device attach time. While I'm here remove unnecessary reassignment of error variable as it was already initialized. Also added a missing driver lock in TIIOCSETTRACE handler. r227509: Export sysctl node for various interrupt moderation parameters and have administrators control them. ti(4) provides a character device to control various other features of driver via ioctls but users had to write their own code to manipulate these parameters. It seems some default values for these parameters are not optimal on today's system but leave it as it was and let administrators change them. The following parameters could be changed: dev.ti.%d.rx_coal_ticks dev.ti.%d.rx_max_coal_bds dev.ti.%d.tx_coal_ticks dev.ti.%d.tx_max_coal_bds dev.ti.%d.tx_buf_ratio dev.ti.%d.stat_ticks The interface has to be brought down and up again before a change takes effect. ti(4) controller supports hardware MAC counters with additional DMA statistics. So it's doable to export these counters via sysctl interface. Unfortunately, these counters are cumulative such that driver have to either send an explicit clear command to controller after extracting them or have to maintain internal counters to get actual changes. Neither look good to me so counters were not exported via sysctl. Modified: stable/9/sys/dev/ti/if_ti.c stable/9/sys/dev/ti/if_tireg.h Directory Properties: stable/9/sys/ (props changed) stable/9/sys/amd64/include/xen/ (props changed) stable/9/sys/boot/ (props changed) stable/9/sys/boot/i386/efi/ (props changed) stable/9/sys/boot/ia64/efi/ (props changed) stable/9/sys/boot/ia64/ski/ (props changed) stable/9/sys/boot/powerpc/boot1.chrp/ (props changed) stable/9/sys/boot/powerpc/ofw/ (props changed) stable/9/sys/cddl/contrib/opensolaris/ (props changed) stable/9/sys/conf/ (props changed) stable/9/sys/contrib/dev/acpica/ (props changed) stable/9/sys/contrib/octeon-sdk/ (props changed) stable/9/sys/contrib/pf/ (props changed) stable/9/sys/contrib/x86emu/ (props changed) Modified: stable/9/sys/dev/ti/if_ti.c ============================================================================== --- stable/9/sys/dev/ti/if_ti.c Tue Jan 3 23:05:23 2012 (r229437) +++ stable/9/sys/dev/ti/if_ti.c Tue Jan 3 23:36:29 2012 (r229438) @@ -125,6 +125,8 @@ __FBSDID("$FreeBSD$"); #include <dev/ti/ti_fw.h> #include <dev/ti/ti_fw2.h> +#include <sys/sysctl.h> + #define TI_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP | CSUM_IP_FRAGS) /* * We can only turn on header splitting if we're using extended receive @@ -247,6 +249,8 @@ static __inline void ti_hdr_split(struct int idx); #endif /* TI_JUMBO_HDRSPLIT */ +static void ti_sysctl_node(struct ti_softc *); + static device_method_t ti_methods[] = { /* Device interface */ DEVMETHOD(device_probe, ti_probe), @@ -497,7 +501,6 @@ ti_copy_mem(struct ti_softc *sc, uint32_ int segptr, segsize, cnt; caddr_t ptr; uint32_t origwin; - uint8_t tmparray[TI_WINLEN], tmparray2[TI_WINLEN]; int resid, segresid; int first_pass; @@ -507,8 +510,7 @@ ti_copy_mem(struct ti_softc *sc, uint32_ * At the moment, we don't handle non-aligned cases, we just bail. * If this proves to be a problem, it will be fixed. */ - if ((readdata == 0) - && (tigon_addr & 0x3)) { + if (readdata == 0 && (tigon_addr & 0x3) != 0) { device_printf(sc->ti_dev, "%s: tigon address %#x isn't " "word-aligned\n", __func__, tigon_addr); device_printf(sc->ti_dev, "%s: unaligned writes aren't " @@ -557,58 +559,54 @@ ti_copy_mem(struct ti_softc *sc, uint32_ ti_offset = TI_WINDOW + (segptr & (TI_WINLEN -1)); if (readdata) { - - bus_space_read_region_4(sc->ti_btag, - sc->ti_bhandle, ti_offset, - (uint32_t *)tmparray, - segsize >> 2); + bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle, + ti_offset, (uint32_t *)sc->ti_membuf, segsize >> 2); if (useraddr) { /* * Yeah, this is a little on the kludgy * side, but at least this code is only * used for debugging. */ - ti_bcopy_swap(tmparray, tmparray2, segsize, - TI_SWAP_NTOH); + ti_bcopy_swap(sc->ti_membuf, sc->ti_membuf2, + segsize, TI_SWAP_NTOH); TI_UNLOCK(sc); if (first_pass) { - copyout(&tmparray2[segresid], ptr, - segsize - segresid); + copyout(&sc->ti_membuf2[segresid], ptr, + segsize - segresid); first_pass = 0; } else - copyout(tmparray2, ptr, segsize); + copyout(sc->ti_membuf2, ptr, segsize); TI_LOCK(sc); } else { if (first_pass) { - ti_bcopy_swap(tmparray, tmparray2, - segsize, TI_SWAP_NTOH); + ti_bcopy_swap(sc->ti_membuf, + sc->ti_membuf2, segsize, + TI_SWAP_NTOH); TI_UNLOCK(sc); - bcopy(&tmparray2[segresid], ptr, - segsize - segresid); + bcopy(&sc->ti_membuf2[segresid], ptr, + segsize - segresid); TI_LOCK(sc); first_pass = 0; } else - ti_bcopy_swap(tmparray, ptr, segsize, - TI_SWAP_NTOH); + ti_bcopy_swap(sc->ti_membuf, ptr, + segsize, TI_SWAP_NTOH); } } else { if (useraddr) { TI_UNLOCK(sc); - copyin(ptr, tmparray2, segsize); + copyin(ptr, sc->ti_membuf2, segsize); TI_LOCK(sc); - ti_bcopy_swap(tmparray2, tmparray, segsize, - TI_SWAP_HTON); + ti_bcopy_swap(sc->ti_membuf2, sc->ti_membuf, + segsize, TI_SWAP_HTON); } else - ti_bcopy_swap(ptr, tmparray, segsize, - TI_SWAP_HTON); + ti_bcopy_swap(ptr, sc->ti_membuf, segsize, + TI_SWAP_HTON); - bus_space_write_region_4(sc->ti_btag, - sc->ti_bhandle, ti_offset, - (uint32_t *)tmparray, - segsize >> 2); + bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle, + ti_offset, (uint32_t *)sc->ti_membuf, segsize >> 2); } segptr += segsize; ptr += segsize; @@ -619,8 +617,8 @@ ti_copy_mem(struct ti_softc *sc, uint32_ * Handle leftover, non-word-aligned bytes. */ if (resid != 0) { - uint32_t tmpval, tmpval2; - bus_size_t ti_offset; + uint32_t tmpval, tmpval2; + bus_size_t ti_offset; /* * Set the segment pointer. @@ -635,7 +633,7 @@ ti_copy_mem(struct ti_softc *sc, uint32_ * writes, since we'll be doing read/modify/write. */ bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle, - ti_offset, &tmpval, 1); + ti_offset, &tmpval, 1); /* * Next, translate this from little-endian to big-endian @@ -677,7 +675,7 @@ ti_copy_mem(struct ti_softc *sc, uint32_ tmpval = htonl(tmpval2); bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle, - ti_offset, &tmpval, 1); + ti_offset, &tmpval, 1); } } @@ -788,8 +786,7 @@ ti_bcopy_swap(const void *src, void *dst size_t tmplen; if (len & 0x3) { - printf("ti_bcopy_swap: length %zd isn't 32-bit aligned\n", - len); + printf("ti_bcopy_swap: length %zd isn't 32-bit aligned\n", len); return (-1); } @@ -799,12 +796,9 @@ ti_bcopy_swap(const void *src, void *dst while (tmplen) { if (swap_type == TI_SWAP_NTOH) - *(uint32_t *)tmpdst = - ntohl(*(const uint32_t *)tmpsrc); + *(uint32_t *)tmpdst = ntohl(*(const uint32_t *)tmpsrc); else - *(uint32_t *)tmpdst = - htonl(*(const uint32_t *)tmpsrc); - + *(uint32_t *)tmpdst = htonl(*(const uint32_t *)tmpsrc); tmpsrc += 4; tmpdst += 4; tmplen -= 4; @@ -1768,7 +1762,8 @@ ti_setmulti(struct ti_softc *sc) * around it on the Tigon 2 by setting a bit in the PCI state register, * but for the Tigon 1 we must give up and abort the interface attach. */ -static int ti_64bitslot_war(struct ti_softc *sc) +static int +ti_64bitslot_war(struct ti_softc *sc) { if (!(CSR_READ_4(sc, TI_PCI_STATE) & TI_PCISTATE_32BIT_BUS)) { @@ -2092,7 +2087,7 @@ ti_gibinit(struct ti_softc *sc) bus_dmamap_sync(sc->ti_rdata_dmat, sc->ti_rdata_dmamap, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); - /* Set up tuneables */ + /* Set up tunables */ #if 0 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS, @@ -2241,6 +2236,16 @@ ti_attach(device_t dev) goto fail; } + /* Allocate working area for memory dump. */ + sc->ti_membuf = malloc(sizeof(uint8_t) * TI_WINLEN, M_DEVBUF, M_NOWAIT); + sc->ti_membuf2 = malloc(sizeof(uint8_t) * TI_WINLEN, M_DEVBUF, + M_NOWAIT); + if (sc->ti_membuf == NULL || sc->ti_membuf2 == NULL) { + device_printf(dev, "cannot allocate memory buffer\n"); + error = ENOMEM; + goto fail; + } + /* Allocate the general information block and ring buffers. */ if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 1, 0, /* algnmnt, boundary */ @@ -2351,19 +2356,8 @@ ti_attach(device_t dev) pci_get_device(dev) == NG_DEVICEID_GA620T) sc->ti_copper = 1; - /* Set default tuneable values. */ - sc->ti_stat_ticks = 2 * TI_TICKS_PER_SEC; -#if 0 - sc->ti_rx_coal_ticks = TI_TICKS_PER_SEC / 5000; -#endif - sc->ti_rx_coal_ticks = 170; - sc->ti_tx_coal_ticks = TI_TICKS_PER_SEC / 500; - sc->ti_rx_max_coal_bds = 64; -#if 0 - sc->ti_tx_max_coal_bds = 128; -#endif - sc->ti_tx_max_coal_bds = 32; - sc->ti_tx_buf_ratio = 21; + /* Set default tunable values. */ + ti_sysctl_node(sc); /* Set up ifnet structure */ ifp->if_softc = sc; @@ -2504,6 +2498,10 @@ ti_detach(device_t dev) } if (ifp) if_free(ifp); + if (sc->ti_membuf) + free(sc->ti_membuf, M_DEVBUF); + if (sc->ti_membuf2) + free(sc->ti_membuf2, M_DEVBUF); mtx_destroy(&sc->ti_mtx); @@ -2835,14 +2833,11 @@ ti_intr(void *xsc) TI_LOCK(sc); ifp = sc->ti_ifp; -/*#ifdef notdef*/ - /* Avoid this for now -- checking this register is expensive. */ /* Make sure this is really our interrupt. */ if (!(CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_INTSTATE)) { TI_UNLOCK(sc); return; } -/*#endif*/ /* Ack interrupt and stop others from occuring. */ CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); @@ -3532,7 +3527,7 @@ ti_ioctl2(struct cdev *dev, u_long cmd, TI_LOCK(sc); bcopy(&sc->ti_rdata->ti_info.ti_stats, outstats, - sizeof(struct ti_stats)); + sizeof(struct ti_stats)); TI_UNLOCK(sc); break; } @@ -3551,9 +3546,6 @@ ti_ioctl2(struct cdev *dev, u_long cmd, params->ti_tx_buf_ratio = sc->ti_tx_buf_ratio; params->param_mask = TI_PARAM_ALL; TI_UNLOCK(sc); - - error = 0; - break; } case TIIOCSETPARAMS: @@ -3598,13 +3590,10 @@ ti_ioctl2(struct cdev *dev, u_long cmd, sc->ti_tx_buf_ratio); } TI_UNLOCK(sc); - - error = 0; - break; } case TIIOCSETTRACE: { - ti_trace_type trace_type; + ti_trace_type trace_type; trace_type = *(ti_trace_type *)addr; @@ -3613,10 +3602,9 @@ ti_ioctl2(struct cdev *dev, u_long cmd, * this register to 0 should have the effect of disabling * tracing. */ + TI_LOCK(sc); CSR_WRITE_4(sc, TI_GCR_NIC_TRACING, trace_type); - - error = 0; - + TI_UNLOCK(sc); break; } case TIIOCGETTRACE: { @@ -3629,7 +3617,6 @@ ti_ioctl2(struct cdev *dev, u_long cmd, trace_start = CSR_READ_4(sc, TI_GCR_NICTRACE_START); cur_trace_ptr = CSR_READ_4(sc, TI_GCR_NICTRACE_PTR); trace_len = CSR_READ_4(sc, TI_GCR_NICTRACE_LEN); - #if 0 if_printf(sc->ti_ifp, "trace_start = %#x, cur_trace_ptr = %#x, " "trace_len = %d\n", trace_start, @@ -3637,24 +3624,20 @@ ti_ioctl2(struct cdev *dev, u_long cmd, if_printf(sc->ti_ifp, "trace_buf->buf_len = %d\n", trace_buf->buf_len); #endif - error = ti_copy_mem(sc, trace_start, min(trace_len, - trace_buf->buf_len), - (caddr_t)trace_buf->buf, 1, 1); - + trace_buf->buf_len), (caddr_t)trace_buf->buf, 1, 1); if (error == 0) { trace_buf->fill_len = min(trace_len, - trace_buf->buf_len); + trace_buf->buf_len); if (cur_trace_ptr < trace_start) trace_buf->cur_trace_ptr = - trace_start - cur_trace_ptr; + trace_start - cur_trace_ptr; else trace_buf->cur_trace_ptr = - cur_trace_ptr - trace_start; + cur_trace_ptr - trace_start; } else trace_buf->fill_len = 0; TI_UNLOCK(sc); - break; } @@ -3676,7 +3659,6 @@ ti_ioctl2(struct cdev *dev, u_long cmd, * you're interested in every ioctl, you'll only be * able to debug one board at a time. */ - error = 0; break; case ALT_READ_TG_MEM: case ALT_WRITE_TG_MEM: @@ -3699,25 +3681,22 @@ ti_ioctl2(struct cdev *dev, u_long cmd, * nothing else. */ TI_LOCK(sc); - if ((mem_param->tgAddr >= TI_BEG_SRAM) - && ((mem_param->tgAddr + mem_param->len) <= sram_end)) { + if (mem_param->tgAddr >= TI_BEG_SRAM && + mem_param->tgAddr + mem_param->len <= sram_end) { /* * In this instance, we always copy to/from user * space, so the user space argument is set to 1. */ error = ti_copy_mem(sc, mem_param->tgAddr, - mem_param->len, - mem_param->userAddr, 1, - (cmd == ALT_READ_TG_MEM) ? 1 : 0); - } else if ((mem_param->tgAddr >= TI_BEG_SCRATCH) - && (mem_param->tgAddr <= scratch_end)) { + mem_param->len, mem_param->userAddr, 1, + cmd == ALT_READ_TG_MEM ? 1 : 0); + } else if (mem_param->tgAddr >= TI_BEG_SCRATCH && + mem_param->tgAddr <= scratch_end) { error = ti_copy_scratch(sc, mem_param->tgAddr, - mem_param->len, - mem_param->userAddr, 1, - (cmd == ALT_READ_TG_MEM) ? - 1 : 0, TI_PROCESSOR_A); - } else if ((mem_param->tgAddr >= TI_BEG_SCRATCH_B_DEBUG) - && (mem_param->tgAddr <= TI_BEG_SCRATCH_B_DEBUG)) { + mem_param->len, mem_param->userAddr, 1, + cmd == ALT_READ_TG_MEM ? 1 : 0, TI_PROCESSOR_A); + } else if (mem_param->tgAddr >= TI_BEG_SCRATCH_B_DEBUG && + mem_param->tgAddr <= TI_BEG_SCRATCH_B_DEBUG) { if (sc->ti_hwrev == TI_HWREV_TIGON) { if_printf(sc->ti_ifp, "invalid memory range for Tigon I\n"); @@ -3725,11 +3704,9 @@ ti_ioctl2(struct cdev *dev, u_long cmd, break; } error = ti_copy_scratch(sc, mem_param->tgAddr - - TI_SCRATCH_DEBUG_OFF, - mem_param->len, - mem_param->userAddr, 1, - (cmd == ALT_READ_TG_MEM) ? - 1 : 0, TI_PROCESSOR_B); + TI_SCRATCH_DEBUG_OFF, mem_param->len, + mem_param->userAddr, 1, + cmd == ALT_READ_TG_MEM ? 1 : 0, TI_PROCESSOR_B); } else { if_printf(sc->ti_ifp, "memory address %#x len %d is " "out of supported range\n", @@ -3737,14 +3714,13 @@ ti_ioctl2(struct cdev *dev, u_long cmd, error = EINVAL; } TI_UNLOCK(sc); - break; } case ALT_READ_TG_REG: case ALT_WRITE_TG_REG: { - struct tg_reg *regs; - uint32_t tmpval; + struct tg_reg *regs; + uint32_t tmpval; regs = (struct tg_reg *)addr; @@ -3758,7 +3734,7 @@ ti_ioctl2(struct cdev *dev, u_long cmd, TI_LOCK(sc); if (cmd == ALT_READ_TG_REG) { bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle, - regs->addr, &tmpval, 1); + regs->addr, &tmpval, 1); regs->data = ntohl(tmpval); #if 0 if ((regs->addr == TI_CPU_STATE) @@ -3770,10 +3746,9 @@ ti_ioctl2(struct cdev *dev, u_long cmd, } else { tmpval = htonl(regs->data); bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle, - regs->addr, &tmpval, 1); + regs->addr, &tmpval, 1); } TI_UNLOCK(sc); - break; } default: @@ -3876,3 +3851,58 @@ ti_shutdown(device_t dev) return (0); } + +static void +ti_sysctl_node(struct ti_softc *sc) +{ + struct sysctl_ctx_list *ctx; + struct sysctl_oid_list *child; + + ctx = device_get_sysctl_ctx(sc->ti_dev); + child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ti_dev)); + + SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "rx_coal_ticks", CTLFLAG_RW, + &sc->ti_rx_coal_ticks, 0, "Receive coalcesced ticks"); + SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "rx_max_coal_bds", CTLFLAG_RW, + &sc->ti_rx_max_coal_bds, 0, "Receive max coalcesced BDs"); + + SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "tx_coal_ticks", CTLFLAG_RW, + &sc->ti_tx_coal_ticks, 0, "Send coalcesced ticks"); + SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "tx_max_coal_bds", CTLFLAG_RW, + &sc->ti_tx_max_coal_bds, 0, "Send max coalcesced BDs"); + SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "tx_buf_ratio", CTLFLAG_RW, + &sc->ti_tx_buf_ratio, 0, + "Ratio of NIC memory devoted to TX buffer"); + + SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "stat_ticks", CTLFLAG_RW, + &sc->ti_stat_ticks, 0, + "Number of clock ticks for statistics update interval"); + + /* Pull in device tunables. */ + sc->ti_rx_coal_ticks = 170; + resource_int_value(device_get_name(sc->ti_dev), + device_get_unit(sc->ti_dev), "rx_coal_ticks", + &sc->ti_rx_coal_ticks); + sc->ti_rx_max_coal_bds = 64; + resource_int_value(device_get_name(sc->ti_dev), + device_get_unit(sc->ti_dev), "rx_max_coal_bds", + &sc->ti_rx_max_coal_bds); + + sc->ti_tx_coal_ticks = TI_TICKS_PER_SEC / 500; + resource_int_value(device_get_name(sc->ti_dev), + device_get_unit(sc->ti_dev), "tx_coal_ticks", + &sc->ti_tx_coal_ticks); + sc->ti_tx_max_coal_bds = 32; + resource_int_value(device_get_name(sc->ti_dev), + device_get_unit(sc->ti_dev), "tx_max_coal_bds", + &sc->ti_tx_max_coal_bds); + sc->ti_tx_buf_ratio = 21; + resource_int_value(device_get_name(sc->ti_dev), + device_get_unit(sc->ti_dev), "tx_buf_ratio", + &sc->ti_tx_buf_ratio); + + sc->ti_stat_ticks = 2 * TI_TICKS_PER_SEC; + resource_int_value(device_get_name(sc->ti_dev), + device_get_unit(sc->ti_dev), "stat_ticks", + &sc->ti_stat_ticks); +} Modified: stable/9/sys/dev/ti/if_tireg.h ============================================================================== --- stable/9/sys/dev/ti/if_tireg.h Tue Jan 3 23:05:23 2012 (r229437) +++ stable/9/sys/dev/ti/if_tireg.h Tue Jan 3 23:36:29 2012 (r229438) @@ -1015,6 +1015,8 @@ struct ti_softc { struct callout ti_watchdog; int ti_timer; ti_flag_vals ti_flags; + uint8_t *ti_membuf; + uint8_t *ti_membuf2; struct cdev *dev; };
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201201032336.q03NaTBp048692>