From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com ([134.134.136.20]:28275 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752821AbbETVPm (ORCPT ); Wed, 20 May 2015 17:15:42 -0400 From: "Jiang, Dave" To: "bhelgaas@google.com" CC: "Allen.Hubbe@emc.com" , "linux-kernel@vger.kernel.org" , "linux-pci@vger.kernel.org" , "jdmason@kudzu.us" , "linux-ntb@googlegroups.com" Subject: Re: [PATCH 04/16] Check the DID for certain workaround error flags to be set. Date: Wed, 20 May 2015 21:15:39 +0000 Message-ID: <1432156539.19618.135.camel@intel.com> References: <9c6ef6eec533bd94ddc6df96bb0b2d37baff75cf.1432135631.git.Allen.Hubbe@emc.com> In-Reply-To: Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org List-ID: T24gV2VkLCAyMDE1LTA1LTIwIGF0IDE2OjExIC0wNTAwLCBCam9ybiBIZWxnYWFzIHdyb3RlOg0K PiBPbiBXZWQsIE1heSAyMCwgMjAxNSBhdCAxMDo0MSBBTSwgQWxsZW4gSHViYmUgPEFsbGVuLkh1 YmJlQGVtYy5jb20+IHdyb3RlOg0KPiA+IEZyb206IERhdmUgSmlhbmcgPGRhdmUuamlhbmdAaW50 ZWwuY29tPg0KPiA+DQo+ID4gU2lnbmVkLW9mZi1ieTogRGF2ZSBKaWFuZyA8ZGF2ZS5qaWFuZ0Bp bnRlbC5jb20+DQo+IA0KPiBOZWVkcyBhIHRvcGljIGluIHRoZSBzdWJqZWN0IGxpbmUgYW5kIGEg Y2hhbmdlbG9nLg0KPiANCj4gSXQgYWxzbyBzZWVtcyB0byBkbyBhIGxvdCBtb3JlIHRoYW4ganVz dCBjaGVja2luZyBkZXZpY2UgSUQgKEkgYXNzdW1lDQo+IHRoYXQncyB3aGF0ICJESUQiIG1lYW5z KSwgc28gdGhpcyBzaG91bGQgcHJvYmFibHkgYmUgc3BsaXQgaW50bw0KPiBzZXZlcmFsIHBhdGNo ZXMgdGhhdCBlYWNoIGRvIG9uZSB0aGluZy4gIEkgc2VlIGF0IGxlYXN0Og0KPiANCj4gICAtIGNv 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aW5mby5odG1sDQo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com. [192.55.52.115]) by gmr-mx.google.com with ESMTP id x3si2057249pdh.2.2015.05.20.14.15.41 for ; Wed, 20 May 2015 14:15:42 -0700 (PDT) From: "Jiang, Dave" Subject: Re: [PATCH 04/16] Check the DID for certain workaround error flags to be set. Date: Wed, 20 May 2015 21:15:39 +0000 Message-ID: <1432156539.19618.135.camel@intel.com> References: <9c6ef6eec533bd94ddc6df96bb0b2d37baff75cf.1432135631.git.Allen.Hubbe@emc.com> In-Reply-To: Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: <77EDF2DB3B095549A14350121B51517B@intel.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Return-Path: dave.jiang@intel.com To: "bhelgaas@google.com" Cc: "Allen.Hubbe@emc.com" , "linux-kernel@vger.kernel.org" , "linux-pci@vger.kernel.org" , "jdmason@kudzu.us" , "linux-ntb@googlegroups.com" List-ID: T24gV2VkLCAyMDE1LTA1LTIwIGF0IDE2OjExIC0wNTAwLCBCam9ybiBIZWxnYWFzIHdyb3RlOg0K PiBPbiBXZWQsIE1heSAyMCwgMjAxNSBhdCAxMDo0MSBBTSwgQWxsZW4gSHViYmUgPEFsbGVuLkh1 YmJlQGVtYy5jb20+IHdyb3RlOg0KPiA+IEZyb206IERhdmUgSmlhbmcgPGRhdmUuamlhbmdAaW50 ZWwuY29tPg0KPiA+DQo+ID4gU2lnbmVkLW9mZi1ieTogRGF2ZSBKaWFuZyA8ZGF2ZS5qaWFuZ0Bp bnRlbC5jb20+DQo+IA0KPiBOZWVkcyBhIHRvcGljIGluIHRoZSBzdWJqZWN0IGxpbmUgYW5kIGEg 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NC4wLnJjMC40My5nY2Y4YThjNg0KPiA+DQo+ID4gLS0NCj4gPiBUbyB1bnN1YnNjcmliZSBmcm9t IHRoaXMgbGlzdDogc2VuZCB0aGUgbGluZSAidW5zdWJzY3JpYmUgbGludXgtcGNpIiBpbg0KPiA+ IHRoZSBib2R5IG9mIGEgbWVzc2FnZSB0byBtYWpvcmRvbW9Admdlci5rZXJuZWwub3JnDQo+ID4g TW9yZSBtYWpvcmRvbW8gaW5mbyBhdCAgaHR0cDovL3ZnZXIua2VybmVsLm9yZy9tYWpvcmRvbW8t aW5mby5odG1sDQo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754519AbbETVPq (ORCPT ); Wed, 20 May 2015 17:15:46 -0400 Received: from mga02.intel.com ([134.134.136.20]:28275 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752821AbbETVPm (ORCPT ); Wed, 20 May 2015 17:15:42 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,466,1427785200"; d="scan'208";a="574499706" From: "Jiang, Dave" To: "bhelgaas@google.com" CC: "Allen.Hubbe@emc.com" , "linux-kernel@vger.kernel.org" , "linux-pci@vger.kernel.org" , "jdmason@kudzu.us" , "linux-ntb@googlegroups.com" Subject: Re: [PATCH 04/16] Check the DID for certain workaround error flags to be set. Thread-Topic: [PATCH 04/16] Check the DID for certain workaround error flags to be set. Thread-Index: AQHQkz1ucqQDMrDjhUaPcjah7mKvPp2F0g8AgAABDIA= Date: Wed, 20 May 2015 21:15:39 +0000 Message-ID: <1432156539.19618.135.camel@intel.com> References: <9c6ef6eec533bd94ddc6df96bb0b2d37baff75cf.1432135631.git.Allen.Hubbe@emc.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.2.105.47] Content-Type: text/plain; charset="utf-8" Content-ID: <77EDF2DB3B095549A14350121B51517B@intel.com> MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by nfs id t4KLFqa6014669 On Wed, 2015-05-20 at 16:11 -0500, Bjorn Helgaas wrote: > On Wed, May 20, 2015 at 10:41 AM, Allen Hubbe wrote: > > From: Dave Jiang > > > > Signed-off-by: Dave Jiang > > Needs a topic in the subject line and a changelog. > > It also seems to do a lot more than just checking device ID (I assume > that's what "DID" means), so this should probably be split into > several patches that each do one thing. I see at least: > > - cosmetic code restructuring > - work_struct/tasklet_struct changes > - new #defines and bar2_off() changes I think this patch got mangled with couple other patches. Allen? > > > --- > > drivers/ntb/hw/intel/ntb_hw_intel.c | 196 +++++++++++++++++++----------------- > > drivers/ntb/hw/intel/ntb_hw_intel.h | 24 ++++- > > drivers/ntb/ntb_transport.c | 16 +-- > > 3 files changed, 133 insertions(+), 103 deletions(-) > > > > diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c > > index d162f22..89fea50 100644 > > --- a/drivers/ntb/hw/intel/ntb_hw_intel.c > > +++ b/drivers/ntb/hw/intel/ntb_hw_intel.c > > @@ -503,7 +503,6 @@ static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf, > > size_t buf_size; > > ssize_t ret, off; > > union { u64 v64; u32 v32; u16 v16; } u; > > - unsigned long reg; > > > > ndev = filp->private_data; > > mmio = ndev->self_mmio; > > @@ -538,10 +537,10 @@ static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf, > > > > if (!ndev->reg->link_is_up(ndev)) { > > off += scnprintf(buf + off, buf_size - off, > > - "Link Satus -\t\tDown\n"); > > + "Link Status -\t\tDown\n"); > > } else { > > off += scnprintf(buf + off, buf_size - off, > > - "Link Satus -\t\tUp\n"); > > + "Link Status -\t\tUp\n"); > > off += scnprintf(buf + off, buf_size - off, > > "Link Speed -\t\tPCI-E Gen %u\n", > > NTB_LNK_STA_SPEED(ndev->lnk_sta)); > > @@ -568,36 +567,30 @@ static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf, > > off += scnprintf(buf + off, buf_size - off, > > "Doorbell Mask Cached -\t%#llx\n", ndev->db_mask); > > > > - reg = ndev->self_reg->db_mask; > > - u.v64 = ndev_db_read(ndev, mmio + reg); > > + u.v64 = ndev_db_read(ndev, mmio + ndev->self_reg->db_mask); > > off += scnprintf(buf + off, buf_size - off, > > "Doorbell Mask -\t\t%#llx\n", u.v64); > > > > - reg = ndev->self_reg->db_bell; > > - u.v64 = ndev_db_read(ndev, mmio + reg); > > + u.v64 = ndev_db_read(ndev, mmio + ndev->self_reg->db_bell); > > off += scnprintf(buf + off, buf_size - off, > > "Doorbell Bell -\t\t%#llx\n", u.v64); > > > > off += scnprintf(buf + off, buf_size - off, > > "\nNTB Incoming XLAT:\n"); > > > > - reg = bar2_off(ndev->xlat_reg->bar2_xlat, 2); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_xlat, 2)); > > off += scnprintf(buf + off, buf_size - off, > > "XLAT23 -\t\t%#018llx\n", u.v64); > > > > - reg = bar2_off(ndev->xlat_reg->bar2_xlat, 4); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_xlat, 4)); > > off += scnprintf(buf + off, buf_size - off, > > "XLAT45 -\t\t%#018llx\n", u.v64); > > > > - reg = bar2_off(ndev->xlat_reg->bar2_limit, 2); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 2)); > > off += scnprintf(buf + off, buf_size - off, > > "LMT23 -\t\t\t%#018llx\n", u.v64); > > > > - reg = bar2_off(ndev->xlat_reg->bar2_limit, 4); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 4)); > > off += scnprintf(buf + off, buf_size - off, > > "LMT45 -\t\t\t%#018llx\n", u.v64); > > > > @@ -606,41 +599,34 @@ static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf, > > off += scnprintf(buf + off, buf_size - off, > > "\nNTB Outgoing B2B XLAT:\n"); > > > > - reg = bar2_off(SNB_PBAR2XLAT_OFFSET, 2); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + SNB_PBAR23XLAT_OFFSET); > > off += scnprintf(buf + off, buf_size - off, > > "B2B XLAT23 -\t\t%#018llx\n", u.v64); > > > > - reg = bar2_off(SNB_PBAR2XLAT_OFFSET, 4); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + SNB_PBAR45XLAT_OFFSET); > > off += scnprintf(buf + off, buf_size - off, > > "B2B XLAT45 -\t\t%#018llx\n", u.v64); > > > > - reg = bar2_off(SNB_PBAR2LMT_OFFSET, 2); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + SNB_PBAR23LMT_OFFSET); > > off += scnprintf(buf + off, buf_size - off, > > "B2B LMT23 -\t\t%#018llx\n", u.v64); > > > > - reg = bar2_off(SNB_PBAR2LMT_OFFSET, 4); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + SNB_PBAR45LMT_OFFSET); > > off += scnprintf(buf + off, buf_size - off, > > "B2B LMT45 -\t\t%#018llx\n", u.v64); > > > > off += scnprintf(buf + off, buf_size - off, > > "\nNTB Secondary BAR:\n"); > > > > - reg = bar0_off(SNB_SBAR0BASE_OFFSET, 0); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + SNB_SBAR0BASE_OFFSET); > > off += scnprintf(buf + off, buf_size - off, > > "SBAR01 -\t\t%#018llx\n", u.v64); > > > > - reg = bar0_off(SNB_SBAR0BASE_OFFSET, 2); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + SNB_SBAR23BASE_OFFSET); > > off += scnprintf(buf + off, buf_size - off, > > "SBAR23 -\t\t%#018llx\n", u.v64); > > > > - reg = bar0_off(SNB_SBAR0BASE_OFFSET, 4); > > - u.v64 = ioread64(mmio + reg); > > + u.v64 = ioread64(mmio + SNB_SBAR45BASE_OFFSET); > > off += scnprintf(buf + off, buf_size - off, > > "SBAR45 -\t\t%#018llx\n", u.v64); > > } > > @@ -648,31 +634,30 @@ static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf, > > off += scnprintf(buf + off, buf_size - off, > > "\nSNB NTB Statistics:\n"); > > > > - reg = SNB_USMEMMISS_OFFSET; > > - u.v16 = ioread16(mmio + reg); > > + u.v16 = ioread16(mmio + SNB_USMEMMISS_OFFSET); > > off += scnprintf(buf + off, buf_size - off, > > "Upstream Memory Miss -\t%u\n", u.v16); > > > > off += scnprintf(buf + off, buf_size - off, > > "\nSNB NTB Hardware Errors:\n"); > > > > - reg = SNB_DEVSTS_OFFSET; > > - if (!pci_read_config_word(ndev->ntb.pdev, reg, &u.v16)) > > + if (!pci_read_config_word(ndev->ntb.pdev, > > + SNB_DEVSTS_OFFSET, &u.v16)) > > off += scnprintf(buf + off, buf_size - off, > > "DEVSTS -\t\t%#06x\n", u.v16); > > > > - reg = SNB_LINK_STATUS_OFFSET; > > - if (!pci_read_config_word(ndev->ntb.pdev, reg, &u.v16)) > > + if (!pci_read_config_word(ndev->ntb.pdev, > > + SNB_LINK_STATUS_OFFSET, &u.v16)) > > off += scnprintf(buf + off, buf_size - off, > > "LNKSTS -\t\t%#06x\n", u.v16); > > > > - reg = SNB_UNCERRSTS_OFFSET; > > - if (!pci_read_config_dword(ndev->ntb.pdev, reg, &u.v32)) > > + if (!pci_read_config_dword(ndev->ntb.pdev, > > + SNB_UNCERRSTS_OFFSET, &u.v32)) > > off += scnprintf(buf + off, buf_size - off, > > "UNCERRSTS -\t\t%#06x\n", u.v32); > > > > - reg = SNB_CORERRSTS_OFFSET; > > - if (!pci_read_config_dword(ndev->ntb.pdev, reg, &u.v32)) > > + if (!pci_read_config_dword(ndev->ntb.pdev, > > + SNB_CORERRSTS_OFFSET, &u.v32)) > > off += scnprintf(buf + off, buf_size - off, > > "CORERRSTS -\t\t%#06x\n", u.v32); > > } > > @@ -1388,7 +1373,6 @@ static int snb_setup_b2b_mw(struct intel_ntb_dev *ndev, > > { > > struct pci_dev *pdev; > > void __iomem *mmio; > > - unsigned long off; > > resource_size_t bar_size; > > phys_addr_t bar_addr; > > int b2b_bar; > > @@ -1484,9 +1468,6 @@ static int snb_setup_b2b_mw(struct intel_ntb_dev *ndev, > > dev_dbg(ndev_dev(ndev), "SBAR5SZ %#x\n", bar_sz); > > } > > > > - /* setup incoming bar base addresses */ > > - off = SNB_SBAR0BASE_OFFSET; > > - > > /* SBAR01 hit by first part of the b2b bar */ > > if (b2b_bar == 0) { > > bar_addr = addr->bar0_addr; > > @@ -1504,7 +1485,7 @@ static int snb_setup_b2b_mw(struct intel_ntb_dev *ndev, > > } > > > > dev_dbg(ndev_dev(ndev), "SBAR01 %#018llx\n", bar_addr); > > - iowrite64(bar_addr, mmio + bar0_off(off, 0)); > > + iowrite64(bar_addr, mmio + SNB_SBAR0BASE_OFFSET); > > > > /* Other SBAR are normally hit by the PBAR xlat, except for b2b bar. > > * The b2b bar is either disabled above, or configured half-size, and > > @@ -1512,102 +1493,96 @@ static int snb_setup_b2b_mw(struct intel_ntb_dev *ndev, > > */ > > > > bar_addr = addr->bar2_addr64 + (b2b_bar == 2 ? ndev->b2b_off : 0); > > - iowrite64(bar_addr, mmio + bar0_off(off, 2)); > > - bar_addr = ioread64(mmio + bar0_off(off, 2)); > > + iowrite64(bar_addr, mmio + SNB_SBAR23BASE_OFFSET); > > + bar_addr = ioread64(mmio + SNB_SBAR23BASE_OFFSET); > > dev_dbg(ndev_dev(ndev), "SBAR23 %#018llx\n", bar_addr); > > > > if (!ndev->bar4_split) { > > bar_addr = addr->bar4_addr64 + > > (b2b_bar == 4 ? ndev->b2b_off : 0); > > - iowrite64(bar_addr, mmio + bar0_off(off, 4)); > > - bar_addr = ioread64(mmio + bar0_off(off, 4)); > > + iowrite64(bar_addr, mmio + SNB_SBAR45BASE_OFFSET); > > + bar_addr = ioread64(mmio + SNB_SBAR45BASE_OFFSET); > > dev_dbg(ndev_dev(ndev), "SBAR45 %#018llx\n", bar_addr); > > } else { > > bar_addr = addr->bar4_addr32 + > > (b2b_bar == 4 ? ndev->b2b_off : 0); > > - iowrite32(bar_addr, mmio + bar0_off(off, 4)); > > - bar_addr = ioread32(mmio + bar0_off(off, 4)); > > + iowrite32(bar_addr, mmio + SNB_SBAR4BASE_OFFSET); > > + bar_addr = ioread32(mmio + SNB_SBAR4BASE_OFFSET); > > dev_dbg(ndev_dev(ndev), "SBAR4 %#010llx\n", bar_addr); > > > > bar_addr = addr->bar5_addr32 + > > (b2b_bar == 5 ? ndev->b2b_off : 0); > > - iowrite32(bar_addr, mmio + bar0_off(off, 5)); > > - bar_addr = ioread32(mmio + bar0_off(off, 5)); > > + iowrite32(bar_addr, mmio + SNB_SBAR5BASE_OFFSET); > > + bar_addr = ioread32(mmio + SNB_SBAR5BASE_OFFSET); > > dev_dbg(ndev_dev(ndev), "SBAR5 %#010llx\n", bar_addr); > > } > > > > /* setup incoming bar limits == base addrs (zero length windows) */ > > - off = SNB_SBAR2LMT_OFFSET; > > > > bar_addr = addr->bar2_addr64 + (b2b_bar == 2 ? ndev->b2b_off : 0); > > - iowrite64(bar_addr, mmio + bar2_off(off, 2)); > > - bar_addr = ioread64(mmio + bar2_off(off, 2)); > > + iowrite64(bar_addr, mmio + SNB_SBAR23LMT_OFFSET); > > + bar_addr = ioread64(mmio + SNB_SBAR23LMT_OFFSET); > > dev_dbg(ndev_dev(ndev), "SBAR23LMT %#018llx\n", bar_addr); > > > > if (!ndev->bar4_split) { > > bar_addr = addr->bar4_addr64 + > > (b2b_bar == 4 ? ndev->b2b_off : 0); > > - iowrite64(bar_addr, mmio + bar2_off(off, 4)); > > - bar_addr = ioread64(mmio + bar2_off(off, 4)); > > + iowrite64(bar_addr, mmio + SNB_SBAR45LMT_OFFSET); > > + bar_addr = ioread64(mmio + SNB_SBAR45LMT_OFFSET); > > dev_dbg(ndev_dev(ndev), "SBAR45LMT %#018llx\n", bar_addr); > > } else { > > bar_addr = addr->bar4_addr32 + > > (b2b_bar == 4 ? ndev->b2b_off : 0); > > - iowrite32(bar_addr, mmio + bar2_off(off, 4)); > > - bar_addr = ioread32(mmio + bar2_off(off, 4)); > > + iowrite32(bar_addr, mmio + SNB_SBAR4LMT_OFFSET); > > + bar_addr = ioread32(mmio + SNB_SBAR4LMT_OFFSET); > > dev_dbg(ndev_dev(ndev), "SBAR4LMT %#010llx\n", bar_addr); > > > > bar_addr = addr->bar5_addr32 + > > (b2b_bar == 5 ? ndev->b2b_off : 0); > > - iowrite32(bar_addr, mmio + bar2_off(off, 5)); > > - bar_addr = ioread32(mmio + bar2_off(off, 5)); > > + iowrite32(bar_addr, mmio + SNB_SBAR5LMT_OFFSET); > > + bar_addr = ioread32(mmio + SNB_SBAR5LMT_OFFSET); > > dev_dbg(ndev_dev(ndev), "SBAR5LMT %#05llx\n", bar_addr); > > } > > > > /* zero incoming translation addrs */ > > - off = SNB_SBAR2XLAT_OFFSET; > > - > > - iowrite64(0, mmio + bar2_off(off, 2)); > > + iowrite64(0, mmio + SNB_SBAR23XLAT_OFFSET); > > > > if (!ndev->bar4_split) { > > - iowrite64(0, mmio + bar2_off(off, 4)); > > + iowrite64(0, mmio + SNB_SBAR45XLAT_OFFSET); > > } else { > > - iowrite32(0, mmio + bar2_off(off, 4)); > > - iowrite32(0, mmio + bar2_off(off, 5)); > > + iowrite32(0, mmio + SNB_SBAR4XLAT_OFFSET); > > + iowrite32(0, mmio + SNB_SBAR5XLAT_OFFSET); > > } > > > > /* zero outgoing translation limits (whole bar size windows) */ > > - off = SNB_PBAR2LMT_OFFSET; > > - iowrite64(0, mmio + bar2_off(off, 2)); > > + iowrite64(0, mmio + SNB_PBAR23LMT_OFFSET); > > if (!ndev->bar4_split) { > > - iowrite64(0, mmio + bar2_off(off, 4)); > > + iowrite64(0, mmio + SNB_PBAR45LMT_OFFSET); > > } else { > > - iowrite32(0, mmio + bar2_off(off, 4)); > > - iowrite32(0, mmio + bar2_off(off, 5)); > > + iowrite32(0, mmio + SNB_PBAR4LMT_OFFSET); > > + iowrite32(0, mmio + SNB_PBAR5LMT_OFFSET); > > } > > > > /* set outgoing translation offsets */ > > - off = SNB_PBAR2XLAT_OFFSET; > > - > > bar_addr = peer_addr->bar2_addr64; > > - iowrite64(bar_addr, mmio + bar2_off(off, 2)); > > - bar_addr = ioread64(mmio + bar2_off(off, 2)); > > + iowrite64(bar_addr, mmio + SNB_PBAR23XLAT_OFFSET); > > + bar_addr = ioread64(mmio + SNB_PBAR23XLAT_OFFSET); > > dev_dbg(ndev_dev(ndev), "PBAR23XLAT %#018llx\n", bar_addr); > > > > if (!ndev->bar4_split) { > > bar_addr = peer_addr->bar4_addr64; > > - iowrite64(bar_addr, mmio + bar2_off(off, 4)); > > - bar_addr = ioread64(mmio + bar2_off(off, 4)); > > + iowrite64(bar_addr, mmio + SNB_PBAR45XLAT_OFFSET); > > + bar_addr = ioread64(mmio + SNB_PBAR45XLAT_OFFSET); > > dev_dbg(ndev_dev(ndev), "PBAR45XLAT %#018llx\n", bar_addr); > > } else { > > bar_addr = peer_addr->bar2_addr64; > > - iowrite32(bar_addr, mmio + bar2_off(off, 4)); > > - bar_addr = ioread32(mmio + bar2_off(off, 4)); > > + iowrite32(bar_addr, mmio + SNB_PBAR4XLAT_OFFSET); > > + bar_addr = ioread32(mmio + SNB_PBAR4XLAT_OFFSET); > > dev_dbg(ndev_dev(ndev), "PBAR4XLAT %#010llx\n", bar_addr); > > > > bar_addr = peer_addr->bar2_addr64; > > - iowrite32(bar_addr, mmio + bar2_off(off, 5)); > > - bar_addr = ioread32(mmio + bar2_off(off, 5)); > > + iowrite32(bar_addr, mmio + SNB_PBAR5XLAT_OFFSET); > > + bar_addr = ioread32(mmio + SNB_PBAR5XLAT_OFFSET); > > dev_dbg(ndev_dev(ndev), "PBAR5XLAT %#010llx\n", bar_addr); > > } > > > > @@ -1747,29 +1722,68 @@ static int snb_init_dev(struct intel_ntb_dev *ndev) > > u8 ppd; > > int rc, mem; > > > > + pdev = ndev_pdev(ndev); > > + > > + switch (pdev->device) { > > /* There is a Xeon hardware errata related to writes to SDOORBELL or > > * B2BDOORBELL in conjunction with inbound access to NTB MMIO Space, > > * which may hang the system. To workaround this use the second memory > > * window to access the interrupt and scratch pad registers on the > > * remote system. > > */ > > - ndev->hwerr_flags |= NTB_HWERR_SDOORBELL_LOCKUP; > > + case PCI_DEVICE_ID_INTEL_NTB_SS_JSF: > > + case PCI_DEVICE_ID_INTEL_NTB_PS_JSF: > > + case PCI_DEVICE_ID_INTEL_NTB_B2B_JSF: > > + case PCI_DEVICE_ID_INTEL_NTB_SS_SNB: > > + case PCI_DEVICE_ID_INTEL_NTB_PS_SNB: > > + case PCI_DEVICE_ID_INTEL_NTB_B2B_SNB: > > + case PCI_DEVICE_ID_INTEL_NTB_SS_IVT: > > + case PCI_DEVICE_ID_INTEL_NTB_PS_IVT: > > + case PCI_DEVICE_ID_INTEL_NTB_B2B_IVT: > > + case PCI_DEVICE_ID_INTEL_NTB_SS_HSX: > > + case PCI_DEVICE_ID_INTEL_NTB_PS_HSX: > > + case PCI_DEVICE_ID_INTEL_NTB_B2B_HSX: > > + ndev->hwerr_flags |= NTB_HWERR_SDOORBELL_LOCKUP; > > + break; > > + } > > > > + switch (pdev->device) { > > /* There is a hardware errata related to accessing any register in > > * SB01BASE in the presence of bidirectional traffic crossing the NTB. > > */ > > - ndev->hwerr_flags |= NTB_HWERR_SB01BASE_LOCKUP; > > + case PCI_DEVICE_ID_INTEL_NTB_SS_IVT: > > + case PCI_DEVICE_ID_INTEL_NTB_PS_IVT: > > + case PCI_DEVICE_ID_INTEL_NTB_B2B_IVT: > > + case PCI_DEVICE_ID_INTEL_NTB_SS_HSX: > > + case PCI_DEVICE_ID_INTEL_NTB_PS_HSX: > > + case PCI_DEVICE_ID_INTEL_NTB_B2B_HSX: > > + ndev->hwerr_flags |= NTB_HWERR_SB01BASE_LOCKUP; > > + break; > > + } > > > > + switch (pdev->device) { > > /* HW Errata on bit 14 of b2bdoorbell register. Writes will not be > > * mirrored to the remote system. Shrink the number of bits by one, > > * since bit 14 is the last bit. > > */ > > - ndev->hwerr_flags |= NTB_HWERR_B2BDOORBELL_BIT14; > > + case PCI_DEVICE_ID_INTEL_NTB_SS_JSF: > > + case PCI_DEVICE_ID_INTEL_NTB_PS_JSF: > > + case PCI_DEVICE_ID_INTEL_NTB_B2B_JSF: > > + case PCI_DEVICE_ID_INTEL_NTB_SS_SNB: > > + case PCI_DEVICE_ID_INTEL_NTB_PS_SNB: > > + case PCI_DEVICE_ID_INTEL_NTB_B2B_SNB: > > + case PCI_DEVICE_ID_INTEL_NTB_SS_IVT: > > + case PCI_DEVICE_ID_INTEL_NTB_PS_IVT: > > + case PCI_DEVICE_ID_INTEL_NTB_B2B_IVT: > > + case PCI_DEVICE_ID_INTEL_NTB_SS_HSX: > > + case PCI_DEVICE_ID_INTEL_NTB_PS_HSX: > > + case PCI_DEVICE_ID_INTEL_NTB_B2B_HSX: > > + ndev->hwerr_flags |= NTB_HWERR_B2BDOORBELL_BIT14; > > + break; > > + } > > > > ndev->reg = &snb_reg; > > > > - pdev = ndev_pdev(ndev); > > - > > rc = pci_read_config_byte(pdev, SNB_PPD_OFFSET, &ppd); > > if (rc) > > return -EIO; > > @@ -2062,14 +2076,14 @@ static const struct intel_ntb_xlat_reg snb_pri_xlat = { > > * window by setting the limit equal to base, nor can it limit the size > > * of the memory window by setting the limit to base + size. > > */ > > - .bar2_limit = SNB_PBAR2LMT_OFFSET, > > - .bar2_xlat = SNB_PBAR2XLAT_OFFSET, > > + .bar2_limit = SNB_PBAR23LMT_OFFSET, > > + .bar2_xlat = SNB_PBAR23XLAT_OFFSET, > > }; > > > > static const struct intel_ntb_xlat_reg snb_sec_xlat = { > > .bar0_base = SNB_SBAR0BASE_OFFSET, > > - .bar2_limit = SNB_SBAR2LMT_OFFSET, > > - .bar2_xlat = SNB_SBAR2XLAT_OFFSET, > > + .bar2_limit = SNB_SBAR23LMT_OFFSET, > > + .bar2_xlat = SNB_SBAR23XLAT_OFFSET, > > }; > > > > static const struct intel_b2b_addr snb_b2b_usd_addr = { > > diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.h b/drivers/ntb/hw/intel/ntb_hw_intel.h > > index 0224b1a..fec689d 100644 > > --- a/drivers/ntb/hw/intel/ntb_hw_intel.h > > +++ b/drivers/ntb/hw/intel/ntb_hw_intel.h > > @@ -70,11 +70,27 @@ > > > > /* SNB hardware (and JSF, IVT, HSX) */ > > > > -#define SNB_PBAR2LMT_OFFSET 0x0000 > > -#define SNB_PBAR2XLAT_OFFSET 0x0010 > > -#define SNB_SBAR2LMT_OFFSET 0x0020 > > -#define SNB_SBAR2XLAT_OFFSET 0x0030 > > +#define SNB_PBAR23LMT_OFFSET 0x0000 > > +#define SNB_PBAR45LMT_OFFSET 0x0008 > > +#define SNB_PBAR4LMT_OFFSET 0x0008 > > +#define SNB_PBAR5LMT_OFFSET 0x000c > > +#define SNB_PBAR23XLAT_OFFSET 0x0010 > > +#define SNB_PBAR45XLAT_OFFSET 0x0018 > > +#define SNB_PBAR4XLAT_OFFSET 0x0018 > > +#define SNB_PBAR5XLAT_OFFSET 0x001c > > +#define SNB_SBAR23LMT_OFFSET 0x0020 > > +#define SNB_SBAR45LMT_OFFSET 0x0028 > > +#define SNB_SBAR4LMT_OFFSET 0x0028 > > +#define SNB_SBAR5LMT_OFFSET 0x002c > > +#define SNB_SBAR23XLAT_OFFSET 0x0030 > > +#define SNB_SBAR45XLAT_OFFSET 0x0038 > > +#define SNB_SBAR4XLAT_OFFSET 0x0038 > > +#define SNB_SBAR5XLAT_OFFSET 0x003c > > #define SNB_SBAR0BASE_OFFSET 0x0040 > > +#define SNB_SBAR23BASE_OFFSET 0x0048 > > +#define SNB_SBAR45BASE_OFFSET 0x0050 > > +#define SNB_SBAR4BASE_OFFSET 0x0050 > > +#define SNB_SBAR5BASE_OFFSET 0x0054 > > #define SNB_SBDF_OFFSET 0x005c > > #define SNB_NTBCNTL_OFFSET 0x0058 > > #define SNB_PDOORBELL_OFFSET 0x0060 > > diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c > > index f1ed1b7..bb2eb85 100644 > > --- a/drivers/ntb/ntb_transport.c > > +++ b/drivers/ntb/ntb_transport.c > > @@ -204,8 +204,8 @@ struct ntb_transport_ctx { > > > > bool link_is_up; > > struct delayed_work link_work; > > - struct work_struct db_work; > > struct work_struct link_cleanup; > > + struct tasklet_struct db_work; > > }; > > > > enum { > > @@ -241,7 +241,7 @@ enum { > > #define NTB_QP_DEF_NUM_ENTRIES 100 > > #define NTB_LINK_DOWN_TIMEOUT 10 > > > > -static void ntb_transport_doorbell_work(struct work_struct *ws); > > +static void ntb_transport_doorbell_work(unsigned long data); > > static const struct ntb_ctx_ops ntb_transport_ops; > > static struct ntb_client ntb_transport_client; > > > > @@ -1002,8 +1002,9 @@ static int ntb_transport_probe(struct ntb_client *self, struct ntb_dev *ndev) > > } > > > > INIT_DELAYED_WORK(&nt->link_work, ntb_transport_link_work); > > - INIT_WORK(&nt->db_work, ntb_transport_doorbell_work); > > INIT_WORK(&nt->link_cleanup, ntb_transport_link_cleanup_work); > > + tasklet_init(&nt->db_work, ntb_transport_doorbell_work, > > + (unsigned long)nt); > > > > rc = ntb_set_ctx(ndev, nt, &ntb_transport_ops); > > if (rc) > > @@ -1044,7 +1045,7 @@ static void ntb_transport_free(struct ntb_client *self, struct ntb_dev *ndev) > > int i; > > > > ntb_transport_link_cleanup(nt); > > - cancel_work_sync(&nt->db_work); > > + tasklet_disable(&nt->db_work); > > cancel_work_sync(&nt->link_cleanup); > > cancel_delayed_work_sync(&nt->link_work); > > > > @@ -1850,10 +1851,9 @@ unsigned int ntb_transport_max_size(struct ntb_transport_qp *qp) > > } > > EXPORT_SYMBOL_GPL(ntb_transport_max_size); > > > > -static void ntb_transport_doorbell_work(struct work_struct *work) > > +static void ntb_transport_doorbell_work(unsigned long data) > > { > > - struct ntb_transport_ctx *nt = container_of(work, > > - struct ntb_transport_ctx, db_work); > > + struct ntb_transport_ctx *nt = (void *)data; > > struct ntb_transport_qp *qp; > > u64 db_mask, db_bits, db_again; > > unsigned int qp_num; > > @@ -1890,7 +1890,7 @@ static void ntb_transport_doorbell_callback(void *data, int vector) > > > > ntb_db_set_mask(nt->ndev, ntb_db_valid_mask(nt->ndev)); > > > > - schedule_work(&nt->db_work); > > + tasklet_schedule(&nt->db_work); > > } > > > > static const struct ntb_ctx_ops ntb_transport_ops = { > > -- > > 2.4.0.rc0.43.gcf8a8c6 > > > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I