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CAAM.
CAAM's memory is broken into following address blocks:
Block Included Registers
0 General Registers
1-4 Job ring registers
6 RTIC registers
7 QI registers
8 DECO and CCB
Size of the above stated blocks varies in various platforms. The block size can be 4K or 64K.
The block size can be dynamically determined by reading CTPR register in CAAM.
This patch initializes the block addresses dynamically based on the value read from this register.
Signed-off-by: Ruchika Gupta <r66431@freescale.com>
Signed-off-by: Nitesh Narayan Lal <b44382@freescale.com>
Change-Id: I0ff5e5fe947134c56014544f335843dcc1595259
Reviewed-on: http://git.am.freescale.net:8181/17748
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>
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For platforms with virtualization enabled
1. The job ring registers can be written to only is the job ring has been
started i.e STARTR bit in JRSTART register is 1
2. For DECO's under direct software control, with virtualization enabled
PL, BMT, ICID and SDID values need to be provided. These are provided by
selecting a Job ring in start mode whose parameters would be used for the
DECO access programming.
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit 17157c90a8abf9323ee2a3daac7ad9f696642dda)
Conflicts:
drivers/crypto/caam/ctrl.c
drivers/crypto/caam/intern.h
Change-Id: I8adb64fd4ba06f1007ae6838ad4f5b3ecd04bdc9
Reviewed-on: http://git.am.freescale.net:8181/17734
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>
Tested-by: Zhengxiong Jin <Jason.Jin@freescale.com>
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Commit 33de5f5c7455aea05b48d46f3024f78ecc83dc4b
(crypto: caam - add support for TLS 1.0 record)
added support for TLS 1.0 offloading, mentioning that the feature is
available for platforms having SEC Era 4 or above.
However, this doesn't stop one to actually run this feature on platforms
not supported (for e.g. P3041DS), leading to errors like:
platform ffe303000.jr: 40002807: DECO: desc idx 40: Invalid LOAD Command
Add a .min_era member for each algorithm registered by the driver,
specifying the lowest (compatible) SEC Era on which the descriptors
can run.
Change-Id: Idf929591361d244a4d7cd8352d0fb8ad7feff830
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Reviewed-on: http://git.am.freescale.net:8181/7118
Reviewed-by: Mircea Pop <mircea.pop@freescale.com>
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Thomas Trefny <Tom.Trefny@freescale.com>
(cherry picked from commit 351d2c869e446187bc78f47dccb0213f0a5e9f17)
Conflicts:
drivers/crypto/caam/caamalg.c
drivers/crypto/caam/ctrl.c
drivers/crypto/caam/intern.h
Change-Id: I615578f0d0693eb46742e65004435821f6eb7de7
Reviewed-on: http://git.am.freescale.net:8181/10374
Reviewed-by: Cristian Stoica <cristian.stoica@freescale.com>
Reviewed-by: Mircea Pop <mircea.pop@freescale.com>
Reviewed-by: Alexandru Porosanu <alexandru.porosanu@freescale.com>
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Jose Rivera <German.Rivera@freescale.com>
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CAAM driver updates as per public key infrastructure changes in cryptoAPI
RSA, DSA, ECDSA are support as part of Public Key Crypto Operations
Signed-off-by: Yashpal Dutta <yashpal.dutta@freescale.com>
Change-Id: I3a6e4f71866a5ef157b9ea13e618c4d3d209f558
Reviewed-on: http://git.am.freescale.net:8181/5839
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Geanta Neag Horia Ioan-B05471 <horia.geanta@freescale.com>
Reviewed-by: Rivera Jose-B46482 <German.Rivera@freescale.com>
Reviewed-on: http://git.am.freescale.net:8181/9546
Reviewed-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Jose Rivera <German.Rivera@freescale.com>
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Job ring is suspended gracefully and resume afresh.
Pending Jobs not yet processed by CAAM are marked with error for
producer to either discard Job or retry after resume.
UIO based Job Rings are not handled by this patch.
Signed-off-by: Yashpal Dutta <yashpal.dutta@freescale.com>
Change-Id: I654734c460e0307243884a076350602ccb97a15a
Reviewed-on: http://git.am.freescale.net:8181/9772
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Jose Rivera <German.Rivera@freescale.com>
Reviewed-on: http://git.am.freescale.net:8181/9988
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At the time of merging few changes required for enabling QI support
were missed. This patch adds those missing changes and hence enables QI
support for SEC.
Signed-off-by: Nitesh Lal <NiteshNarayanLal@freescale.com>
Change-Id: I190ed1452317cb1f70faaf85f8a69be0a0c5a376
Reviewed-on: http://git.am.freescale.net:8181/9922
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Jose Rivera <German.Rivera@freescale.com>
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This patch updates the current tasklet implementation to NAPI so as
the system is more balanced in the terms that the packet submission
and the packet forwarding after being processed can be done at
the same priority
Signed-off-by: Naveen Burmi <naveenburmi@freescale.com>
rebased and tuned NAPI_WEIGHT.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
(cherry picked from commit c74e14d7ff270f8d85c7988e9286f64b721f34ee)
Change-Id: I3a31db49a1a6060b3ad5cd0fc4ee4044858438bc
Reviewed-on: http://git.am.freescale.net:8181/520
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Tested-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Signed-off-by: Nitesh Lal <NiteshNarayanLal@freescale.com>
Change-Id: I685d687d89a53387287912cd2273f8c1d6a6e4e4
Reviewed-on: http://git.am.freescale.net:8181/9753
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Vakul Garg <vakul@freescale.com>
Reviewed-by: Jose Rivera <German.Rivera@freescale.com>
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- Earlier interface layers - caamalg, caamhash, caamrng were
directly using the Controller driver private structure to access
the Job ring.
- Changed the above to use alloc/free API's provided by Job Ring Drive
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Garg Vakul-B16394 <vakul@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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With each of the Job Ring available as a platform device, the
Job Ring driver needs to take care of allocation/deallocation
of the Job Rings to the above interface layers. Added APIs
in Job Ring Driver to allocate/free Job rings
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Garg Vakul-B16394 <vakul@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The SEC Job Rings are now available as individual devices.
This would enable sharing of job rings between kernel and
user space. Job Rings can now be dynamically bound/unbound
from kernel.
Changes are made in the following layers of CAAM Driver
1. Controller driver
- Does basic initialization of CAAM Block.
- Creates platform devices for Job Rings.
(Earlier the initialization of Job ring was done
by the controller driver)
2. JobRing Platform driver
- Manages the platform Job Ring devices created
by the controller driver
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Garg Vakul-B16394 <vakul@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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RNG4 block contains multiple (i.e. 2) state handles that can be
initialized. This patch adds the necessary code for detecting
which of the two state handles has been instantiated by another
piece of software e.g. u-boot and instantiate the other one (or
both if none was instantiated). Only the state handle(s)
instantiated by this driver will be deinstantiated when removing
the module.
Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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If the caam driver module instantiates the RNG state handle 0, then
upon the removal of the module, the RNG state handle is left
initialized. This patch takes care of reverting the state of the
handle back to its previous uninstantatied state.
Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The job ring init function creates a platform device for each job ring.
While the job ring is shutdown, e.g. while caam module removal, its
platform device was not being removed. This leads to failure while
reinsertion and then removal of caam module second time.
The following kernel crash dump appears when caam module is reinserted
and then removed again. This patch fixes it.
root@p4080ds:~# rmmod caam.ko
Unable to handle kernel paging request for data at address 0x00000008
Faulting instruction address: 0xf94aca18
Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=8 P4080 DS
Modules linked in: caam(-) qoriq_dbg(O) [last unloaded: caam]
NIP: f94aca18 LR: f94aca18 CTR: c029f950
REGS: eac47d60 TRAP: 0300 Tainted: G O (3.8.4-rt2)
MSR: 00029002 <CE,EE,ME> CR: 22022484 XER: 20000000
DEAR: 00000008, ESR: 00000000
TASK = e49dfaf0[2110] 'rmmod' THREAD: eac46000 CPU: 1
GPR00: f94ad3f4 eac47e10 e49dfaf0 00000000 00000005 ea2ac210 ffffffff 00000000
GPR08: c286de68 e4977ce0 c029b1c0 00000001 c029f950 10029738 00000000 100e0000
GPR16: 00000000 10023d00 1000cbdc 1000cb8c 1000cbb8 00000000 c07dfecc 00000000
GPR24: c07e0000 00000000 1000cbd8 f94e0000 ffffffff 00000000 ea53cd40 00000000
NIP [f94aca18] caam_reset_hw_jr+0x18/0x1c0 [caam]
LR [f94aca18] caam_reset_hw_jr+0x18/0x1c0 [caam]
Call Trace:
[eac47e10] [eac47e30] 0xeac47e30 (unreliable)
[eac47e20] [f94ad3f4] caam_jr_shutdown+0x34/0x220 [caam]
[eac47e60] [f94ac0e4] caam_remove+0x54/0xb0 [caam]
[eac47e80] [c029fb38] __device_release_driver+0x68/0x120
[eac47e90] [c02a05c8] driver_detach+0xd8/0xe0
[eac47eb0] [c029f8e0] bus_remove_driver+0xa0/0x110
[eac47ed0] [c00768e4] sys_delete_module+0x144/0x270
[eac47f40] [c000e2f0] ret_from_syscall+0x0/0x3c
Signed-off-by: Vakul Garg <vakul@freescale.com>
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Reviewed-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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there is no noticeable benefit for multiple cores to process one
job ring's output ring: in fact, we can benefit from cache effects
of having the back-half stay on the core that receives a particular
ring's interrupts, and further relax general contention and the
locking involved with reading outring_used, since tasklets run
atomically.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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caam supports ahash hmac with sha algorithms and md5.
Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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remove caam_jr_register and caam_jr_deregister
to allow sharing of job rings.
Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The SEC4 supercedes the SEC2.x/3.x as Freescale's
Integrated Security Engine. Its programming model is
incompatible with all prior versions of the SEC (talitos).
The SEC4 is also known as the Cryptographic Accelerator
and Assurance Module (CAAM); this driver is named caam.
This initial submission does not include support for Data Path
mode operation - AEAD descriptors are submitted via the job
ring interface, while the Queue Interface (QI) is enabled
for use by others. Only AEAD algorithms are implemented
at this time, for use with IPsec.
Many thanks to the Freescale STC team for their contributions
to this driver.
Signed-off-by: Steve Cornelius <sec@pobox.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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