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895427bd01
NVME Initiator: Base modifications
This patch adds base modifications for NVME initiator support.
The base modifications consist of:
- Formal split of SLI3 rings from SLI-4 WQs (sometimes referred to as
rings as well) as implementation now widely varies between the two.
- Addition of configuration modes:
SCSI initiator only; NVME initiator only; NVME target only; and
SCSI and NVME initiator.
The configuration mode drives overall adapter configuration,
offloads enabled, and resource splits.
NVME support is only available on SLI-4 devices and newer fw.
- Implements the following based on configuration mode:
- Exchange resources are split by protocol; Obviously, if only
1 mode, then no split occurs. Default is 50/50. module attribute
allows tuning.
- Pools and config parameters are separated per-protocol
- Each protocol has it's own set of queues, but share interrupt
vectors.
SCSI:
SLI3 devices have few queues and the original style of queue
allocation remains.
SLI4 devices piggy back on an "io-channel" concept that
eventually needs to merge with scsi-mq/blk-mq support (it is
underway). For now, the paradigm continues as it existed
prior. io channel allocates N msix and N WQs (N=4 default)
and either round robins or uses cpu # modulo N for scheduling.
A bunch of module parameters allow the configuration to be
tuned.
NVME (initiator):
Allocates an msix per cpu (or whatever pci_alloc_irq_vectors
gets)
Allocates a WQ per cpu, and maps the WQs to msix on a WQ #
modulo msix vector count basis.
Module parameters exist to cap/control the config if desired.
- Each protocol has its own buffer and dma pools.
I apologize for the size of the patch.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
----
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
63 lines
3.2 KiB
C
63 lines
3.2 KiB
C
/*******************************************************************
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* This file is part of the Emulex Linux Device Driver for *
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* Fibre Channel Host Bus Adapters. *
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* Copyright (C) 2004-2009 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.emulex.com *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*******************************************************************/
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#define LOG_ELS 0x00000001 /* ELS events */
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#define LOG_DISCOVERY 0x00000002 /* Link discovery events */
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#define LOG_MBOX 0x00000004 /* Mailbox events */
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#define LOG_INIT 0x00000008 /* Initialization events */
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#define LOG_LINK_EVENT 0x00000010 /* Link events */
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#define LOG_IP 0x00000020 /* IP traffic history */
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#define LOG_FCP 0x00000040 /* FCP traffic history */
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#define LOG_NODE 0x00000080 /* Node table events */
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#define LOG_TEMP 0x00000100 /* Temperature sensor events */
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#define LOG_BG 0x00000200 /* BlockGuard events */
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#define LOG_MISC 0x00000400 /* Miscellaneous events */
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#define LOG_SLI 0x00000800 /* SLI events */
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#define LOG_FCP_ERROR 0x00001000 /* log errors, not underruns */
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#define LOG_LIBDFC 0x00002000 /* Libdfc events */
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#define LOG_VPORT 0x00004000 /* NPIV events */
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#define LOG_SECURITY 0x00008000 /* Security events */
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#define LOG_EVENT 0x00010000 /* CT,TEMP,DUMP, logging */
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#define LOG_FIP 0x00020000 /* FIP events */
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#define LOG_FCP_UNDER 0x00040000 /* FCP underruns errors */
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#define LOG_SCSI_CMD 0x00080000 /* ALL SCSI commands */
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#define LOG_NVME 0x00100000 /* NVME general events. */
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#define LOG_NVME_DISC 0x00200000 /* NVME Discovery/Connect events. */
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#define LOG_NVME_ABTS 0x00400000 /* NVME ABTS events. */
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#define LOG_NVME_IOERR 0x00800000 /* NVME IO Error events. */
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#define LOG_ALL_MSG 0xffffffff /* LOG all messages */
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#define lpfc_printf_vlog(vport, level, mask, fmt, arg...) \
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do { \
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{ if (((mask) & (vport)->cfg_log_verbose) || (level[1] <= '3')) \
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dev_printk(level, &((vport)->phba->pcidev)->dev, "%d:(%d):" \
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fmt, (vport)->phba->brd_no, vport->vpi, ##arg); } \
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} while (0)
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#define lpfc_printf_log(phba, level, mask, fmt, arg...) \
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do { \
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{ uint32_t log_verbose = (phba)->pport ? \
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(phba)->pport->cfg_log_verbose : \
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(phba)->cfg_log_verbose; \
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if (((mask) & log_verbose) || (level[1] <= '3')) \
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dev_printk(level, &((phba)->pcidev)->dev, "%d:" \
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fmt, phba->brd_no, ##arg); \
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} \
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} while (0)
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