Some devices are having problem on device reset that happens during DPDK application exit [1].
Create a static list of devices and exclude them from device reset. [1] http://dpdk.org/ml/archives/dev/2017-November/080927.html Fixes: b58eedfc7dd5 ("igb_uio: issue FLR during open and release of device file") Cc: sta...@dpdk.org Signed-off-by: Ferruh Yigit <ferruh.yi...@intel.com> --- Cc: Jianfeng Tan <jianfeng....@intel.com> Cc: Jingjing Wu <jingjing...@intel.com> Cc: Shijith Thotton <shijith.thot...@caviumnetworks.com> Cc: Gregory Etelson <greg...@weka.io> Cc: Harish Patil <harish.pa...@cavium.com> Cc: George Prekas <george.pre...@epfl.ch> Cc: Sergio Gonzalez Monroy <sergio.gonzalez.mon...@intel.com> Cc: Rasesh Mody <rasesh.m...@cavium.com> Cc: Lee Roberts <lee.robe...@hpe.com> Cc: Stephen Hemminger <step...@networkplumber.org> This is alternative approach to http://dpdk.org/dev/patchwork/patch/31144/ v2: * more concise function, no change in functionality --- lib/librte_eal/linuxapp/igb_uio/compat.h | 19 ++++++++++++++++++- lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 8 +++++++- 2 files changed, 25 insertions(+), 2 deletions(-) diff --git a/lib/librte_eal/linuxapp/igb_uio/compat.h b/lib/librte_eal/linuxapp/igb_uio/compat.h index 30508f35c..5d7223124 100644 --- a/lib/librte_eal/linuxapp/igb_uio/compat.h +++ b/lib/librte_eal/linuxapp/igb_uio/compat.h @@ -133,4 +133,21 @@ static bool pci_check_and_mask_intx(struct pci_dev *pdev) #define HAVE_PCI_MSI_MASK_IRQ 1 #endif - +#define BROADCOM_PCI_VENDOR_ID 0x14E4 +static const struct pci_device_id no_reset_pci_tbl[] = { + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x168a) }, /* 57800 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x164f) }, /* 57711 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x168e) }, /* 57810 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x163d) }, /* 57811 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x168d) }, /* 57840_OBS */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16a1) }, /* 57840_4_10 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16a2) }, /* 57840_2_20 */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16ae) }, /* 57810_MF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x163e) }, /* 57811_MF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16a4) }, /* 57840_MF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16a9) }, /* 57800_VF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16af) }, /* 57810_VF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x163f) }, /* 57811_VF */ + { PCI_DEVICE(BROADCOM_PCI_VENDOR_ID, 0x16ad) }, /* 57840_VF */ + { 0 }, +}; diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c index fd320d87d..037e02267 100644 --- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c +++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c @@ -348,6 +348,11 @@ igbuio_pci_open(struct uio_info *info, struct inode *inode) return 0; } +static bool is_device_excluded_from_reset(struct pci_dev *pdev) +{ + return !!pci_match_id(no_reset_pci_tbl, pdev); +} + static int igbuio_pci_release(struct uio_info *info, struct inode *inode) { @@ -360,7 +365,8 @@ igbuio_pci_release(struct uio_info *info, struct inode *inode) /* stop the device from further DMA */ pci_clear_master(dev); - pci_reset_function(dev); + if (!is_device_excluded_from_reset(dev)) + pci_reset_function(dev); return 0; } -- 2.13.6
