From: dykmanj@linux.vnet.ibm.com
To: netdev@vger.kernel.org
Cc: Jim Dykman <dykmanj@linux.vnet.ibm.com>
Subject: [PATCH v2 00/27] HFI: minimal device driver/ip driver
Date: Sun, 17 Apr 2011 23:21:32 -0400 [thread overview]
Message-ID: <1303096919-7367-1-git-send-email-dykmanj@linux.vnet.ibm.com> (raw)
From: Jim Dykman <dykmanj@linux.vnet.ibm.com>
The HFI ("Host Fabric Interface") network interface is the internal cluster
fabric of IBM's PERCS supercomputer. The hardware design is under US export
control, so we cannot release hardware specs. There is a writeup of
publically available information about the system available here:
http://sourceforge.net/projects/hfidevicedriver/files/docs/hfi_general_desc_v2.1.txt
hfi_core contains the resource management to set up communications paths for
network traffic. Calls are provided for kernel drivers, and also for setting
up direct user-space access to HFI windows.
hfi_ip contains the kernel network driver.
The driver has been running in the lab for several months. The full patch is
around 22000 lines, so we've split out a minimal device/network driver that
can send and receive through the simplest path. Once that much gets accepted
we'll start adding on to it.
Patches are against net-next-2.6.
Jim Dykman
Changelog:
----------
v2:
Remove return; at the end of void funcs
hfidd_free_adapter: p_acs = NULL unneccesssary, remove
remove net_stats, and use netdev->stats, remove hf_get_stats
rename network driver to hfi_ip
hf_inet_event: NETDEV_UP needs to check event is for us, check
netdev->netdev_ops == ours
change printk()s to netdev_err() and friends
hf_net_close: remove redundant CLOSE check
hf_change_mtu: minimum mtu should be 68
remove NETIF_F_SG flag
hf_init_netdev: Use ERR_PTR
hf_init_module: %ld / formatting
pass up return code from failed call
use unsigned int instead of u32 for bit fields <32 bits
use struct ethhdr instead of hf_hwhdr
hf_get_sset_count: default return -EINVAL not -EOPNOTSUPP
Remove "hfidd_callback_event: enter" message that printed on every
recv interrupt
hfidd_destroy_devices: hfidd_rmdev() after hfidd_free_adapter() so
dev_printk doesn't oops on rmmod
next reply other threads:[~2011-04-18 3:22 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-18 3:21 dykmanj [this message]
2011-04-18 3:21 ` [PATCH v2 01/27] HFI: skeleton driver dykmanj
2011-04-18 12:23 ` Ben Hutchings
2011-04-21 21:38 ` Jim Dykman
2011-04-18 3:21 ` [PATCH v2 02/27] HFI: Add HFI adapter control structure dykmanj
2011-04-18 12:19 ` Ben Hutchings
2011-04-21 21:38 ` Jim Dykman
2011-04-18 3:21 ` [PATCH v2 03/27] HFI: Add device_create/device_destroy calls for HFI devices dykmanj
2011-04-18 3:21 ` [PATCH v2 04/27] HFI: Find HFI devices in the device tree dykmanj
2011-04-18 3:21 ` [PATCH v2 05/27] HFI: The first few HFI-specific hypervisor calls dykmanj
2011-04-18 3:21 ` [PATCH v2 06/27] HFI: Add DD calls to START/STOP INTERFACE HCALLs dykmanj
2011-04-18 3:21 ` [PATCH v2 07/27] HFI: Add nMMU start/stop hypervisor calls dykmanj
2011-04-18 3:21 ` [PATCH v2 08/27] HFI: DD request framework and first HFI DD request dykmanj
2011-04-18 3:21 ` [PATCH v2 09/27] HFI: Add HFI window resource tracking dykmanj
2011-04-18 3:21 ` [PATCH v2 10/27] HFI: HFIDD_REQ_OPEN_WINDOW request dykmanj
2011-04-18 3:21 ` [PATCH v2 11/27] HFI: Check window number/assign window number dykmanj
2011-04-18 3:21 ` [PATCH v2 12/27] HFI: Sanity check send and receive fifo parameters dykmanj
2011-04-18 3:21 ` [PATCH v2 13/27] HFI: Send and receive fifo address translation dykmanj
2011-04-18 3:21 ` [PATCH v2 14/27] HFI: Add hypercalls to create/modify/free page tables in the nMMU dykmanj
2011-04-18 3:21 ` [PATCH v2 15/27] HFI: Set up nMMU page tables for the send and receive fifos dykmanj
2011-04-18 3:21 ` [PATCH v2 16/27] HFI: Add window open hypervisor call dykmanj
2011-04-18 3:21 ` [PATCH v2 17/27] HFI: Set up and call the open window hypercall dykmanj
2011-04-18 3:21 ` [PATCH v2 18/27] HFI: Map window registers into user process dykmanj
2011-04-18 3:21 ` [PATCH v2 19/27] HFI: Add window close request dykmanj
2011-04-18 3:21 ` [PATCH v2 20/27] HFI: Close window hypervisor call dykmanj
2011-04-18 3:21 ` [PATCH v2 21/27] HFI: Add send and receive interrupts dykmanj
2011-04-18 3:21 ` [PATCH v2 22/27] HFI: Add event notifications dykmanj
2011-04-18 3:21 ` [PATCH v2 23/27] HFI: Define packet header formats and window register offsets dykmanj
2011-04-18 3:21 ` [PATCH v2 24/27] HFI: hfi_ip network driver dykmanj
2011-04-18 3:21 ` [PATCH v2 25/27] HFI: hfi_ip fifo transmit paths dykmanj
2011-04-18 3:21 ` [PATCH v2 26/27] HFI: hfi_ip fifo receive path dykmanj
2011-04-18 3:21 ` [PATCH v2 27/27] HFI: hfi_ip ethtool support dykmanj
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