#ifndef ISCSI_TARGET_STAT_H #define ISCSI_TARGET_STAT_H #include #include #include /* * For struct iscsi_tiqn->tiqn_wwn default groups */ extern struct config_item_type iscsi_stat_instance_cit; extern struct config_item_type iscsi_stat_sess_err_cit; extern struct config_item_type iscsi_stat_tgt_attr_cit; extern struct config_item_type iscsi_stat_login_cit; extern struct config_item_type iscsi_stat_logout_cit; /* * For struct iscsi_session->se_sess default groups */ extern struct config_item_type iscsi_stat_sess_cit; /* iSCSI session error types */ #define ISCSI_SESS_ERR_UNKNOWN 0 #define ISCSI_SESS_ERR_DIGEST 1 #define ISCSI_SESS_ERR_CXN_TIMEOUT 2 #define ISCSI_SESS_ERR_PDU_FORMAT 3 /* iSCSI session error stats */ struct iscsi_sess_err_stats { spinlock_t lock; u32 digest_errors; u32 cxn_timeout_errors; u32 pdu_format_errors; u32 last_sess_failure_type; char last_sess_fail_rem_name[224]; } ____cacheline_aligned; /* iSCSI login failure types (sub oids) */ #define ISCSI_LOGIN_FAIL_OTHER 2 #define ISCSI_LOGIN_FAIL_REDIRECT 3 #define ISCSI_LOGIN_FAIL_AUTHORIZE 4 #define ISCSI_LOGIN_FAIL_AUTHENTICATE 5 #define ISCSI_LOGIN_FAIL_NEGOTIATE 6 /* iSCSI login stats */ struct iscsi_login_stats { spinlock_t lock; u32 accepts; u32 other_fails; u32 redirects; u32 authorize_fails; u32 authenticate_fails; u32 negotiate_fails; /* used for notifications */ u64 last_fail_time; /* time stamp (jiffies) */ u32 last_fail_type; int last_intr_fail_ip_family; struct sockaddr_storage last_intr_fail_sockaddr; char last_intr_fail_name[224]; } ____cacheline_aligned; /* iSCSI logout stats */ struct iscsi_logout_stats { spinlock_t lock; u32 normal_logouts; u32 abnormal_logouts; } ____cacheline_aligned; #endif /*** ISCSI_TARGET_STAT_H ***/ gi/linux/net-next.git/commit/net/sunrpc?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>commitdiff
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authorMarc Zyngier <marc.zyngier@arm.com>2017-01-17 16:00:48 +0000
committerThomas Gleixner <tglx@linutronix.de>2017-01-30 15:18:56 +0100
commit08d85f3ea99f1eeafc4e8507936190e86a16ee8c (patch)
tree410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee /net/sunrpc
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
irqdomain: Avoid activating interrupts more than once
Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early"), we can end-up activating a PCI/MSI twice (once at allocation time, and once at startup time). This is normally of no consequences, except that there is some HW out there that may misbehave if activate is used more than once (the GICv3 ITS, for example, uses the activate callback to issue the MAPVI command, and the architecture spec says that "If there is an existing mapping for the EventID-DeviceID combination, behavior is UNPREDICTABLE"). While this could be worked around in each individual driver, it may make more sense to tackle the issue at the core level. In order to avoid getting in that situation, let's have a per-interrupt flag to remember if we have already activated that interrupt or not. Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early") Reported-and-tested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'net/sunrpc')