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f218d67ef0
This patch allows driver to post send and receive requests on QPs which are in error state. Instead of flushing the QP in the context of polling error CQEs, the QPs will be added to a flush list maintained per CQ. QP state is moved to error. QP is added to flush list if the user moves it to error state using modify_qp also. After polling the HW CQ in poll_cq routine, this flush list is traversed and driver completes work requests on each QP in the flush list, till the budget expires. The QP is moved out of flush list during QP destroy or during modify_QP to RESET. When ULPs post Work Requests while QP is in error state, driver will store the ULP data and then increment the QP producer s/w index, without ringing doorbell. It then schedules a worker to invoke the CQ handler since the interrupts wont be generated from the HW for this request. Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.