- 16 Apr, 2005 40 commits
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Michael S. Tsirkin authored
Implement fast memory regions (FMRs), where the driver writes directly into the HCA's translation tables rather than requiring a firmware command. For Tavor, MTTs for FMR are separate from regular MTTs, and are reserved at driver initialization. This is done to limit the amount of virtual memory needed to map the MTTs. For Arbel, there's no such limitation, and all MTTs and MPTs may be used for FMR or for regular MR. Signed-off-by:
Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by:
Roland Dreier <roland@topspin.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Michael S. Tsirkin authored
Split Tavor and Arbel/mem-free index<->hw key munging routines, so that FMR implementation can call correct implementation without testing HCA type (which it already knows). Signed-off-by:
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Michael S. Tsirkin authored
Add mthca_table_find() function, which returns the lowmem address of an entry in a mem-free HCA's context tables. This will be used by the FMR implementation. Signed-off-by:
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Michael S. Tsirkin authored
Add code for SYNC_TPT firmware command, which will be used by FMR implementation. Signed-off-by:
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Michael S. Tsirkin authored
Add mthca_write64_raw() function, which will be used to write FMR entries that are in ioremapped PCI memory. Signed-off-by:
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Michael S. Tsirkin authored
Encapsulate the buddy allocator used for MTT segments. This cleans up the code and also gets us ready to add FMR support. Signed-off-by:
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Roland Dreier authored
Make address handle verbs usable from interrupt context. Signed-off-by:
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Michael S. Tsirkin authored
Fill in missing fields in send completions. Signed-off-by:
Itamar Rabenstein <itamar@mellanox.co.il> Signed-off-by:
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Roland Dreier authored
Fix bug in MTT allocation in mem-free mode. I misunderstood the MTT size value returned by the firmware -- it is really the size of a single MTT entry, since mem-free mode does not segment the MTT as the original firmware did. This meant that our MTT addresses ended up being off by a factor of 8. This meant that our MTT allocations might overlap, and so we could overwrite and corrupt earlier memory regions when writing new MTT entries. We fix this by always using our 64-byte MTT segment size. This allows some simplification of the code as well, since there's no reason to put the MTT segment size in a variable -- we can always use our enum value directly. Signed-off-by:
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Roland Dreier authored
Add code to support RDMA and atomic send work requests in mem-free mode. Signed-off-by:
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Roland Dreier authored
CQ numbers are only 24 bits, so only print 6 hex digits and mask off reserved part when reporting a CQ event. Signed-off-by:
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Roland Dreier authored
On error path, only free doorbell records if we're in mem-free mode. Signed-off-by:
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Roland Dreier authored
Print IRQ number when NOP command interrupt test fails to help debugging. Signed-off-by:
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Roland Dreier authored
Release mutex on error return path from mthca_alloc_db(). Signed-off-by:
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Michael S. Tsirkin authored
Fix error handling in MR allocation for mem-free mode: mthca_free must get an MR index, not a key. Signed-off-by:
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Roland Dreier authored
Doorbell record pages are allocated in HCA page size chunks (always 4096 bytes), so we need to divide by 4096 and not PAGE_SIZE when figuring out how many pages we'll need space for. Signed-off-by:
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Roland Dreier authored
It's cleaner to kfree mthca_mr, and not rely on the fact that ib_mr is the first field in mthca_mr. Signed-off-by:
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Michael S. Tsirkin authored
The first buffer of a memory region is not required to be page-aligned, so don't return an error if it's not. Signed-off-by:
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Roland Dreier authored
When posting a work request with immediate data, put the immediate data in the immediate data field of the hardware's work request (rather than overwriting the flags field). Signed-off-by:
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Roland Dreier authored
Fix calculation of rdb_shift by using original number of QPs, not their slot in profile[] (which will be rearranged when we sort it). Signed-off-by:
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Roland Dreier authored
Implement more of the device_query method in mthca. Signed-off-by:
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Roland Dreier authored
In mem-free mode, when allocating memory regions, make sure that the HCA has context memory mapped to cover the virtual space used for the MPT and MTTs being used. Signed-off-by:
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Hal Rosenstock authored
Eliminate unneeded and misleading comments Signed-off-by:
Hal Rosenstock <halr@voltaire.com> Signed-off-by:
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Roland Dreier authored
Fix handling of MAD agent registrations with mgmt_class == 0. In this case ib_umad should pass a NULL registration request to the MAD core rather than a request with mgmt_class set to 0. Signed-off-by:
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Libor Michalek authored
Add missing newline in printk. Signed-off-by:
Libor Michalek <libor@topspin.com> Signed-off-by:
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Roland Dreier authored
Mask bits correctly from jhash result in ib_fmr_hash() so that the computed bucket index is within our hash table. This fixes an SDP crash. Signed-off-by:
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Hal Rosenstock authored
Eliminate no longer needed include files Signed-off-by:
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Sean Hefty authored
Replace the *wc field in ib_mad_recv_wc from pointing to a structure on the stack to one allocated with the received MAD buffer. This allows a client to access the *wc field after their receive completion handler has returned. Signed-off-by:
Sean Hefty <sean.hefty@intel.com> Signed-off-by:
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Roland Dreier authored
Update IPoIB documentation now that multicast debugging files have moved from ipoibdebugfs to debugfs. Signed-off-by:
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Roland Dreier authored
Convert IPoIB to use debugfs instead of its own custom debugging filesystem. Signed-off-by:
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Roland Dreier authored
Correct and simplify calculation of static rate. We need to round up the quotient of (local_rate - path_rate) / path_rate. To round up we add (path_rate - 1) to the numerator, so the quotient simplifies to (local_rate - 1) / path_rate. No idea how I came up with the old formula. Signed-off-by:
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Hal Rosenstock authored
Set skb->mac.raw on receive. This fixes crashes when this is dereferenced, for example by netfilter or when PF_PACKET is used. Signed-off-by:
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Horms authored
Use netdev as the mailing list contact instead of the mostly dead linux-net list. Signed-off-by:
Horms <horms@verge.net.au> Signed-off-by:
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Russell King authored
Both the RiscPC and (optionally) EBSA285 have floppy disk support. Allow this option to be selected on these ARM platforms again. Signed-off-by:
Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Coywolf Qi Hunt authored
This patch hides reparent_to_init(). reparent_to_init() should only be called by daemonize(). Signed-off-by:
Coywolf Qi Hunt <coywolf@lovecn.org> Signed-off-by:
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Adrian Bunk authored
Both maintainer email addresses are bouncing and the web address is no longer valid. Seems to be a good time to remove the entry. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Adrian Bunk authored
Compiling SOUND_AD1889 with PCI=n results in the following compile error: sound/built-in.o(.text+0x24f0c): In function `ad1889_remove': : undefined reference to `pci_release_region' This patch adds the missing dependency on PCI. Signed-off-by:
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Benoit Boissinot authored
gcc-4 warns with include/linux/cpuset.h:21: warning: type qualifiers ignored on function return type cpuset_cpus_allowed is declared with const extern const cpumask_t cpuset_cpus_allowed(const struct task_struct *p); First const should be __attribute__((const)), but the gcc manual explains that: "Note that a function that has pointer arguments and examines the data pointed to must not be declared const. Likewise, a function that calls a non-const function usually must not be const. It does not make sense for a const function to return void." The following patch remove const from the function declaration. Signed-off-by:
Benoit Boissinot <benoit.boissinot@ens-lyon.org> Acked-by:
Paul Jackson <pj@sgi.com> Signed-off-by:
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Lennert Buytenhek authored
IXP2000 (ARM-based) platforms use a separate 'struct resource' for PCI MEM space. Resource allocation for PCI BARs always fails because the 'root' resource (the IXP2000 PCI MEM resource) always has the entire address space (00000000-ffffffff) free, and find_resource() calculates the size of that range as ffffffff-00000000+1=0, so all allocations fail because it thinks there is no space. (akpm: pls. double-check) Signed-off-by:
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Colin Leroy authored
Update Colin's credits entry. Signed-off-by:
Colin Leroy <colin@colino.net> Signed-off-by:
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