linux/drivers/scsi/cxgbi/cxgb4i/Kconfig

# SPDX-License-Identifier: GPL-2.0-only
config SCSI_CXGB4_ISCSI
	tristate "Chelsio T4 iSCSI support"
	depends on PCI && INET && (IPV6 || IPV6=n)
	depends on PTP_1588_CLOCK_OPTIONAL
	depends on THERMAL || !THERMAL
	depends on ETHERNET
	depends on TLS || TLS=n
	select NET_VENDOR_CHELSIO
	select CHELSIO_T4
	select CHELSIO_LIB
	select SCSI_ISCSI_ATTRS
	help
	  This driver supports iSCSI offload for the Chelsio T4 devices.
treewide: Add SPDX license identifier - Makefile/Kconfig Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2019-05-19 13:07:45 +01:00			`# SPDX-License-Identifier: GPL-2.0-only`
[SCSI] cxgb4i v5: iscsi driver Added cxgb4i iSCSI driver. This patch implements the cxgb4i iscsi connection acceleration for the open-iscsi initiator. The cxgb4i driver offers the iscsi PDU based offload: - digest insertion and verification - payload direct-placement into host memory buffer. Signed-off-by: Karen Xie <kxie@chelsio.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> 2010-08-16 20:55:53 -07:00			`config SCSI_CXGB4_ISCSI`
			`tristate "Chelsio T4 iSCSI support"`
libcxgbi/cxgb4i : Fix ipv6 build failure caught with randconfig Previous guard of IS_ENABLED(CONFIG_IPV6) is not sufficient when cxgbi drivers are built into kernel but ipv6 is not. v2: Use Kconfig to disable compiling cxgbi built into kernel when ipv6 is compiled as a module Fixes: e81fbf6cd652 ("libcxgbi:cxgb4i Guard ipv6 code with a config check") Fixes: fc8d0590d914 ("libcxgbi: Add ipv6 api to driver") Signed-off-by: Anish Bhatt <anish@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2014-08-12 22:38:26 -07:00			`depends on PCI && INET && (IPV6 \|\| IPV6=n)`
ethernet: fix PTP_1588_CLOCK dependencies The 'imply' keyword does not do what most people think it does, it only politely asks Kconfig to turn on another symbol, but does not prevent it from being disabled manually or built as a loadable module when the user is built-in. In the ICE driver, the latter now causes a link failure: aarch64-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_eth_ioctl': ice_main.c:(.text+0x13b0): undefined reference to `ice_ptp_get_ts_config' ice_main.c:(.text+0x13b0): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `ice_ptp_get_ts_config' aarch64-linux-ld: ice_main.c:(.text+0x13bc): undefined reference to `ice_ptp_set_ts_config' ice_main.c:(.text+0x13bc): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `ice_ptp_set_ts_config' aarch64-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_prepare_for_reset': ice_main.c:(.text+0x31fc): undefined reference to `ice_ptp_release' ice_main.c:(.text+0x31fc): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `ice_ptp_release' aarch64-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_rebuild': This is a recurring problem in many drivers, and we have discussed it several times befores, without reaching a consensus. I'm providing a link to the previous email thread for reference, which discusses some related problems. To solve the dependency issue better than the 'imply' keyword, introduce a separate Kconfig symbol "CONFIG_PTP_1588_CLOCK_OPTIONAL" that any driver can depend on if it is able to use PTP support when available, but works fine without it. Whenever CONFIG_PTP_1588_CLOCK=m, those drivers are then prevented from being built-in, the same way as with a 'depends on PTP_1588_CLOCK \|\| !PTP_1588_CLOCK' dependency that does the same trick, but that can be rather confusing when you first see it. Since this should cover the dependencies correctly, the IS_REACHABLE() hack in the header is no longer needed now, and can be turned back into a normal IS_ENABLED() check. Any driver that gets the dependency wrong will now cause a link time failure rather than being unable to use PTP support when that is in a loadable module. However, the two recently added ptp_get_vclocks_index() and ptp_convert_timestamp() interfaces are only called from builtin code with ethtool and socket timestamps, so keep the current behavior by stubbing those out completely when PTP is in a loadable module. This should be addressed properly in a follow-up. As Richard suggested, we may want to actually turn PTP support into a 'bool' option later on, preventing it from being a loadable module altogether, which would be one way to solve the problem with the ethtool interface. Fixes: 06c16d89d2cb ("ice: register 1588 PTP clock device object for E810 devices") Link: https://lore.kernel.org/netdev/20210804121318.337276-1-arnd@kernel.org/ Link: https://lore.kernel.org/netdev/CAK8P3a06enZOf=XyZ+zcAwBczv41UuCTz+=0FMf2gBz1_cOnZQ@mail.gmail.com/ Link: https://lore.kernel.org/netdev/CAK8P3a3=eOxE-K25754+fB_-i_0BZzf9a9RfPTX3ppSwu9WZXw@mail.gmail.com/ Link: https://lore.kernel.org/netdev/20210726084540.3282344-1-arnd@kernel.org/ Acked-by: Shannon Nelson <snelson@pensando.io> Acked-by: Jacob Keller <jacob.e.keller@intel.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20210812183509.1362782-1-arnd@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> 2021-08-12 20:33:58 +02:00			`depends on PTP_1588_CLOCK_OPTIONAL`
scsi: cxgb4i: fix thermal configuration dependencies I fixed a bug by adding a dependency in the network driver, but that fix caused a related bug in the SCSI driver: WARNING: unmet direct dependencies detected for CHELSIO_T4 Depends on [m]: NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_CHELSIO [=y] && PCI [=y] && (IPV6 [=y] \|\| IPV6 [=y]=n) && (THERMAL [=m] \|\| !THERMAL [=m]) Selected by [y]: - SCSI_CXGB4_ISCSI [=y] && SCSI_LOWLEVEL [=y] && SCSI [=y] && PCI [=y] && INET [=y] && (IPV6 [=y] \|\| IPV6 [=y]=n) drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.o: In function `cxgb4_thermal_init': cxgb4_thermal.c:(.text+0x158): undefined reference to `thermal_zone_device_register' drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.o: In function `cxgb4_thermal_remove': cxgb4_thermal.c:(.text+0x1d8): undefined reference to `thermal_zone_device_unregister' /git/arm-soc/Makefile:1042: recipe for target 'vmlinux' failed The same dependency needs to be propagated here to make it work correctly with CONFIG_THERMAL=m and SCSI_CXGB4_ISCSI=y. That change by itself causes another problem with a circular dependency, as we use 'select NETDEVICES'. This is something we really should not do anyway, as a driver symbol should never select another major subsystem, so let's turn that into a 'depends on'. I don't see any downsides of that, as NETDEVICES is only disabled in rather obscure cases that are not relevant to the users of cxgb4i. Fixes: e70a57fa59bb ("cxgb4: fix thermal configuration dependencies") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> 2018-11-02 16:35:23 +01:00			`depends on THERMAL \|\| !THERMAL`
			`depends on ETHERNET`
scsi: cxgb4i: Fix TLS dependency SCSI_CXGB4_ISCSI selects CHELSIO_T4. The latter depends on TLS \|\| TLS=n, so since 'select' does not check dependencies of the selected symbol, SCSI_CXGB4_ISCSI should also depend on TLS \|\| TLS=n. This prevents the following kconfig warning and restricts SCSI_CXGB4_ISCSI to 'm' whenever TLS=m. WARNING: unmet direct dependencies detected for CHELSIO_T4 Depends on [m]: NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_CHELSIO [=y] && PCI [=y] && (IPV6 [=y] \|\| IPV6 [=y]=n) && (TLS [=m] \|\| TLS [=m]=n) Selected by [y]: - SCSI_CXGB4_ISCSI [=y] && SCSI_LOWLEVEL [=y] && SCSI [=y] && PCI [=y] && INET [=y] && (IPV6 [=y] \|\| IPV6 [=y]=n) && ETHERNET [=y] Link: https://lore.kernel.org/r/20201208220505.24488-1-rdunlap@infradead.org Fixes: 7b36b6e03b0d ("[SCSI] cxgb4i v5: iscsi driver") Cc: Karen Xie <kxie@chelsio.com> Cc: linux-scsi@vger.kernel.org Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> 2020-12-08 14:05:05 -08:00			`depends on TLS \|\| TLS=n`
cxgbi: Fix scsi Kconfig dependencies. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net> 2011-08-11 22:59:31 -07:00			`select NET_VENDOR_CHELSIO`
[SCSI] cxgb4i v5: iscsi driver Added cxgb4i iSCSI driver. This patch implements the cxgb4i iscsi connection acceleration for the open-iscsi initiator. The cxgb4i driver offers the iscsi PDU based offload: - digest insertion and verification - payload direct-placement into host memory buffer. Signed-off-by: Karen Xie <kxie@chelsio.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> 2010-08-16 20:55:53 -07:00			`select CHELSIO_T4`
cxgb4i,libcxgbi: add iSCSI DDP support Add iSCSI DDP support in cxgb4i driver using common iSCSI DDP Page Pod Manager. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2016-07-21 22:57:16 +05:30			`select CHELSIO_LIB`
[SCSI] cxgb4i v5: iscsi driver Added cxgb4i iSCSI driver. This patch implements the cxgb4i iscsi connection acceleration for the open-iscsi initiator. The cxgb4i driver offers the iscsi PDU based offload: - digest insertion and verification - payload direct-placement into host memory buffer. Signed-off-by: Karen Xie <kxie@chelsio.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> 2010-08-16 20:55:53 -07:00			`select SCSI_ISCSI_ATTRS`
treewide: replace '---help---' in Kconfig files with 'help' Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, but there are still more than 2400 instances. This commit finishes the conversion. While I touched the lines, I also fixed the indentation. There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---' In order to convert all of them to 1 tab + 'help', I ran the following commend: $ find . -name 'Kconfig' \| xargs sed -i 's/^[[:space:]]---help---/\thelp/' Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> 2020-06-14 01:50:22 +09:00			`help`
[SCSI] cxgb4i v5: iscsi driver Added cxgb4i iSCSI driver. This patch implements the cxgb4i iscsi connection acceleration for the open-iscsi initiator. The cxgb4i driver offers the iscsi PDU based offload: - digest insertion and verification - payload direct-placement into host memory buffer. Signed-off-by: Karen Xie <kxie@chelsio.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> 2010-08-16 20:55:53 -07:00			`This driver supports iSCSI offload for the Chelsio T4 devices.`