From b8b9d81b36a4adada3ef3504c252e2518393884d Mon Sep 17 00:00:00 2001 From: Varun Prakash Date: Thu, 21 Jul 2016 22:57:14 +0530 Subject: [PATCH] libcxgb: add library module for Chelsio drivers Add common library module(libcxgb.ko) for Chelsio drivers to remove duplicate code. Code for iSCSI DDP Page Pod Manager is moved from cxgb4.ko to libcxgb.ko. Earlier only cxgbit.ko was using this code, now cxgb3i and cxgb4i will also use common Page Pod manager code. In future this module will have common connection management and hardware specific code that can be shared by multiple Chelsio drivers. Signed-off-by: Varun Prakash Reviewed-by: Steve Wise Signed-off-by: David S. Miller --- drivers/net/ethernet/chelsio/Kconfig | 16 +++---- drivers/net/ethernet/chelsio/Makefile | 1 + drivers/net/ethernet/chelsio/cxgb4/Makefile | 1 - drivers/net/ethernet/chelsio/libcxgb/Makefile | 3 ++ .../cxgb4_ppm.c => libcxgb/libcxgb_ppm.c} | 43 ++++++++++++++++--- .../cxgb4_ppm.h => libcxgb/libcxgb_ppm.h} | 38 +++++++++++++--- drivers/target/iscsi/cxgbit/Kconfig | 2 +- drivers/target/iscsi/cxgbit/Makefile | 1 + drivers/target/iscsi/cxgbit/cxgbit.h | 2 +- 9 files changed, 81 insertions(+), 26 deletions(-) create mode 100644 drivers/net/ethernet/chelsio/libcxgb/Makefile rename drivers/net/ethernet/chelsio/{cxgb4/cxgb4_ppm.c => libcxgb/libcxgb_ppm.c} (86%) rename drivers/net/ethernet/chelsio/{cxgb4/cxgb4_ppm.h => libcxgb/libcxgb_ppm.h} (84%) diff --git a/drivers/net/ethernet/chelsio/Kconfig b/drivers/net/ethernet/chelsio/Kconfig index 4686a85a8a22..5713e83be08c 100644 --- a/drivers/net/ethernet/chelsio/Kconfig +++ b/drivers/net/ethernet/chelsio/Kconfig @@ -96,17 +96,6 @@ config CHELSIO_T4_DCB If unsure, say N. -config CHELSIO_T4_UWIRE - bool "Unified Wire Support for Chelsio T5 cards" - default n - depends on CHELSIO_T4 - ---help--- - Enable unified-wire offload features. - Say Y here if you want to enable unified-wire over Ethernet - in the driver. - - If unsure, say N. - config CHELSIO_T4_FCOE bool "Fibre Channel over Ethernet (FCoE) Support for Chelsio T5 cards" default n @@ -137,4 +126,9 @@ config CHELSIO_T4VF To compile this driver as a module choose M here; the module will be called cxgb4vf. +config CHELSIO_LIB + tristate + ---help--- + Common library for Chelsio drivers. + endif # NET_VENDOR_CHELSIO diff --git a/drivers/net/ethernet/chelsio/Makefile b/drivers/net/ethernet/chelsio/Makefile index 390510b5e90f..b6a5eec6ed8e 100644 --- a/drivers/net/ethernet/chelsio/Makefile +++ b/drivers/net/ethernet/chelsio/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_CHELSIO_T1) += cxgb/ obj-$(CONFIG_CHELSIO_T3) += cxgb3/ obj-$(CONFIG_CHELSIO_T4) += cxgb4/ obj-$(CONFIG_CHELSIO_T4VF) += cxgb4vf/ +obj-$(CONFIG_CHELSIO_LIB) += libcxgb/ diff --git a/drivers/net/ethernet/chelsio/cxgb4/Makefile b/drivers/net/ethernet/chelsio/cxgb4/Makefile index 85c92821b239..ace0ab98d0f1 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/Makefile +++ b/drivers/net/ethernet/chelsio/cxgb4/Makefile @@ -7,5 +7,4 @@ obj-$(CONFIG_CHELSIO_T4) += cxgb4.o cxgb4-objs := cxgb4_main.o l2t.o t4_hw.o sge.o clip_tbl.o cxgb4_ethtool.o cxgb4-$(CONFIG_CHELSIO_T4_DCB) += cxgb4_dcb.o cxgb4-$(CONFIG_CHELSIO_T4_FCOE) += cxgb4_fcoe.o -cxgb4-$(CONFIG_CHELSIO_T4_UWIRE) += cxgb4_ppm.o cxgb4-$(CONFIG_DEBUG_FS) += cxgb4_debugfs.o diff --git a/drivers/net/ethernet/chelsio/libcxgb/Makefile b/drivers/net/ethernet/chelsio/libcxgb/Makefile new file mode 100644 index 000000000000..2362230ef4fe --- /dev/null +++ b/drivers/net/ethernet/chelsio/libcxgb/Makefile @@ -0,0 +1,3 @@ +obj-$(CONFIG_CHELSIO_LIB) += libcxgb.o + +libcxgb-y := libcxgb_ppm.o diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.c similarity index 86% rename from drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c rename to drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.c index d88a7a7b2400..01a4329fccc4 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c +++ b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.c @@ -1,15 +1,43 @@ /* - * cxgb4_ppm.c: Chelsio common library for T4/T5 iSCSI PagePod Manager + * libcxgb_ppm.c: Chelsio common library for T3/T4/T5 iSCSI PagePod Manager * * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. * * Written by: Karen Xie (kxie@chelsio.com) */ +#define DRV_NAME "libcxgb" +#define DRV_VERSION "1.0.0-ko" +#define pr_fmt(fmt) DRV_NAME ": " fmt + #include #include #include @@ -22,7 +50,7 @@ #include #include -#include "cxgb4_ppm.h" +#include "libcxgb_ppm.h" /* Direct Data Placement - * Directly place the iSCSI Data-In or Data-Out PDU's payload into @@ -462,3 +490,8 @@ unsigned int cxgbi_tagmask_set(unsigned int ppmax) return 1 << (bits + PPOD_IDX_SHIFT); } + +MODULE_AUTHOR("Chelsio Communications"); +MODULE_DESCRIPTION("Chelsio common library"); +MODULE_VERSION(DRV_VERSION); +MODULE_LICENSE("Dual BSD/GPL"); diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.h b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.h similarity index 84% rename from drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.h rename to drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.h index d48732673b75..e995a1a3840a 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.h +++ b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.h @@ -1,17 +1,41 @@ /* - * cxgb4_ppm.h: Chelsio common library for T4/T5 iSCSI ddp operation + * libcxgb_ppm.h: Chelsio common library for T3/T4/T5 iSCSI ddp operation * * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. * * Written by: Karen Xie (kxie@chelsio.com) */ -#ifndef __CXGB4PPM_H__ -#define __CXGB4PPM_H__ +#ifndef __LIBCXGB_PPM_H__ +#define __LIBCXGB_PPM_H__ #include #include @@ -307,4 +331,4 @@ int cxgbi_ppm_release(struct cxgbi_ppm *ppm); void cxgbi_tagmask_check(unsigned int tagmask, struct cxgbi_tag_format *); unsigned int cxgbi_tagmask_set(unsigned int ppmax); -#endif /*__CXGB4PPM_H__*/ +#endif /*__LIBCXGB_PPM_H__*/ diff --git a/drivers/target/iscsi/cxgbit/Kconfig b/drivers/target/iscsi/cxgbit/Kconfig index c9b6a3c758b1..bc6c1d5dfcbb 100644 --- a/drivers/target/iscsi/cxgbit/Kconfig +++ b/drivers/target/iscsi/cxgbit/Kconfig @@ -1,7 +1,7 @@ config ISCSI_TARGET_CXGB4 tristate "Chelsio iSCSI target offload driver" depends on ISCSI_TARGET && CHELSIO_T4 && INET - select CHELSIO_T4_UWIRE + select CHELSIO_LIB ---help--- To compile this driver as module, choose M here: the module will be called cxgbit. diff --git a/drivers/target/iscsi/cxgbit/Makefile b/drivers/target/iscsi/cxgbit/Makefile index bd56c073dff6..4893ec29b6b3 100644 --- a/drivers/target/iscsi/cxgbit/Makefile +++ b/drivers/target/iscsi/cxgbit/Makefile @@ -1,4 +1,5 @@ ccflags-y := -Idrivers/net/ethernet/chelsio/cxgb4 +ccflags-y += -Idrivers/net/ethernet/chelsio/libcxgb ccflags-y += -Idrivers/target/iscsi obj-$(CONFIG_ISCSI_TARGET_CXGB4) += cxgbit.o diff --git a/drivers/target/iscsi/cxgbit/cxgbit.h b/drivers/target/iscsi/cxgbit/cxgbit.h index 625c7f6de6b2..90388698c222 100644 --- a/drivers/target/iscsi/cxgbit/cxgbit.h +++ b/drivers/target/iscsi/cxgbit/cxgbit.h @@ -37,7 +37,7 @@ #include "cxgb4.h" #include "cxgb4_uld.h" #include "l2t.h" -#include "cxgb4_ppm.h" +#include "libcxgb_ppm.h" #include "cxgbit_lro.h" extern struct mutex cdev_list_lock; -- 2.20.1