Commit b8b9d81b authored by Varun Prakash's avatar Varun Prakash Committed by David S. Miller
Browse files

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: default avatarVarun Prakash <varun@chelsio.com>
Reviewed-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9e0b27fe
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+5 −11
Original line number Diff line number Diff line
@@ -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
+1 −0
Original line number Diff line number Diff line
@@ -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-$(CONFIG_CHELSIO_LIB) += libcxgb/
+0 −1
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@@ -7,5 +7,4 @@ obj-$(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
+3 −0
Original line number Diff line number Diff line
obj-$(CONFIG_CHELSIO_LIB) += libcxgb.o

libcxgb-y := libcxgb_ppm.o
+38 −5
Original line number Diff line number Diff line
/*
 * 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 <linux/kernel.h>
#include <linux/version.h>
#include <linux/module.h>
@@ -22,7 +50,7 @@
#include <linux/pci.h>
#include <linux/scatterlist.h>

#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");
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