FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F11.4.0 2019-11-28T02:15:45Z 2019-11-28T02:15:45Z Ed Maste emaste@FreeBSD.org 2019-11-28T02:15:45Z urn:sha1:1b1fd82bcf47b0562f0b32bb3331650998135486 Reported by: Pietro Oliva Security: Possible OOB read in root-only ioctl Sponsored by: The FreeBSD Foundation 2018-03-29T02:50:57Z Eitan Adler eadler@FreeBSD.org 2018-03-29T02:50:57Z urn:sha1:4ab2e064d7950be84256d671a7ae93f87cc6aa36 This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code. Revert with prejudice. This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes. Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes. Requested by: gjb (re) 2018-03-14T03:19:51Z Eitan Adler eadler@FreeBSD.org 2018-03-14T03:19:51Z urn:sha1:be5d0b9566b13fdf8cabebb63334cbec12bfc409 These changes are incomplete but are making it difficult to determine what other changes can/should be merged. No objections from: pfg 2013-09-04T17:19:21Z Brooks Davis brooks@FreeBSD.org 2013-09-04T17:19:21Z urn:sha1:f43581345bad430bbb7fc164d577edee19aac124 Rework the timeout code to use actual time rather than a DELAY() loop and to use both typical and maximum to allow logging of timeout failures. Also correct the erase timeout, it is specified in milliseconds not microseconds like the other timeouts. Do not invoke DELAY() between status queries as this adds significant latency which in turn reduced write performance substantially. Sanity check timeout values from the hardware. Implement support for buffered writes (only enabled on Intel/Sharp parts for now). This yields an order of magnitude speedup on the 64MB Intel StrataFlash parts we use. When making a copy of the block to modify, also keep a clean copy around until we are ready to commit the block and use it to avoid unnecessary erases. In the non-buffer write case, also use it to avoid unnecessary writes when the block has not been erased. This yields a significant speedup when doing things like zeroing a block. Sponsored by: DARPA, AFRL Reviewed by: imp (previous version) 2012-03-27T15:13:12Z Jayachandran C. jchandra@FreeBSD.org 2012-03-27T15:13:12Z urn:sha1:9c1f1330d6f9c75129f6cebf7f26882d3d2414c7 The flash commands and responses are little-endian and have to be byte swapped on big-endian systems. However the raw read of data need not be swapped. Make the cfi_read and cfi_write do the swapping, and provide a cfi_read_raw which does not byte swap for reading data from flash. 2011-05-22T20:55:54Z Attilio Rao attilio@FreeBSD.org 2011-05-22T20:55:54Z urn:sha1:dc6dc1f573171c3921abe1aa900da3d7f0652365 Rewrite atomic operations for powerpc in order to achieve the following: - Produce a type-clean implementation (in terms of functions arguments and returned values) for the primitives. - Fix errors with _long() atomics where they ended up with the wrong arguments to be accepted. - Follow the sys/type.h specifics that define the numbered types starting from standard C types. - Let _ptr() version to not auto-magically cast arguments, but leave the burden on callers, as _ptr() atomic is intended to be used relatively rarely. Fix cfi in order to support the latest point. In collabouration with: bde Tested by: andreast, nwhitehorn, jceel MFC after: 2 weeks 2009-03-09T23:16:02Z Sam Leffler sam@FreeBSD.org 2009-03-09T23:16:02Z urn:sha1:f2c6781bfd0205e45bf03f031c2baddf79c31e32 of flash-based filesystems. Note this is not interlocked against the raw CFI device. 2009-02-05T18:12:07Z Sam Leffler sam@FreeBSD.org 2009-02-05T18:12:07Z urn:sha1:63425a7f25f2d5b32a8a80a1f4bc2d776fe97adc o add CFI_SUPPORT_STRATAFLASH compile option to enable support o add new ioctls to get/set the factory and user/oem segments of the PR and to get/set Protection Lock Register that fuses the user segment o add #defines for bits in the status register o update cfi_wait_ready to take an offset so it can be used to wait for PR write completion and replace constants w/ symbolic names Note: writing the user segment isn't correct; committing now to get review. Sponsored by: Carlson Wireless Reviewed by: imp, Chris Anderson 2009-02-03T19:07:41Z Sam Leffler sam@FreeBSD.org 2009-02-03T19:07:41Z urn:sha1:3a114d1f9233a14a1b94408c77a02f6633d8e858 2008-10-25T06:18:12Z Marcel Moolenaar marcel@FreeBSD.org 2008-10-25T06:18:12Z urn:sha1:e00251b7ed6da56cdf29e75ea681344b5f335621 Memory Interface (CFI). The flash memory can be read and written to through /dev/cfi# and an ioctl() exists so processes can read the query information. The driver supports the AMD and Intel command set, though only the AMD command has been tested. Obtained from: Juniper Networks, Inc.